2017-12-17 22:00:59 -05:00
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2012-12-10 14:04:46 -05:00
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2015-04-12 00:56:28 -04:00
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2017-10-01 17:57:54 -04:00
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2015-04-12 00:56:28 -04:00
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2022-06-30 17:01:00 +08:00
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2018-01-09 08:21:39 -05:00
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mm: introduce memalloc_retry_wait()
Various places in the kernel - largely in filesystems - respond to a
memory allocation failure by looping around and re-trying. Some of
these cannot conveniently use __GFP_NOFAIL, for reasons such as:
- a GFP_ATOMIC allocation, which __GFP_NOFAIL doesn't work on
- a need to check for the process being signalled between failures
- the possibility that other recovery actions could be performed
- the allocation is quite deep in support code, and passing down an
extra flag to say if __GFP_NOFAIL is wanted would be clumsy.
Many of these currently use congestion_wait() which (in almost all
cases) simply waits the given timeout - congestion isn't tracked for
most devices.
It isn't clear what the best delay is for loops, but it is clear that
the various filesystems shouldn't be responsible for choosing a timeout.
This patch introduces memalloc_retry_wait() with takes on that
responsibility. Code that wants to retry a memory allocation can call
this function passing the GFP flags that were used. It will wait
however is appropriate.
For now, it only considers __GFP_NORETRY and whatever
gfpflags_allow_blocking() tests. If blocking is allowed without
__GFP_NORETRY, then alloc_page either made some reclaim progress, or
waited for a while, before failing. So there is no need for much
further waiting. memalloc_retry_wait() will wait until the current
jiffie ends. If this condition is not met, then alloc_page() won't have
waited much if at all. In that case memalloc_retry_wait() waits about
200ms. This is the delay that most current loops uses.
linux/sched/mm.h needs to be included in some files now,
but linux/backing-dev.h does not.
Link: https://lkml.kernel.org/r/163754371968.13692.1277530886009912421@noble.neil.brown.name
Signed-off-by: NeilBrown <neilb@suse.de>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Chao Yu <chao@kernel.org>
Cc: Darrick J. Wong <djwong@kernel.org>
Cc: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-14 14:07:14 -08:00
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2015-04-12 00:56:28 -04:00
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2012-12-10 14:04:46 -05:00
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2012-12-10 14:05:51 -05:00
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2012-12-10 14:04:46 -05:00
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2013-04-19 17:53:09 -04:00
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2012-12-10 14:04:46 -05:00
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2014-05-12 10:50:23 -04:00
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2012-12-10 14:04:46 -05:00
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2023-05-12 15:11:02 -04:00
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2012-12-10 14:04:46 -05:00
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2022-06-16 10:13:57 +08:00
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2012-12-10 14:04:46 -05:00
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2023-05-12 15:11:02 -04:00
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2012-12-10 14:04:46 -05:00
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2023-05-12 15:11:02 -04:00
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2017-06-21 21:10:32 -04:00
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2012-12-10 14:04:46 -05:00
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2023-05-12 15:11:02 -04:00
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2012-12-10 14:04:46 -05:00
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2013-07-01 08:12:37 -04:00
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2012-12-10 14:04:46 -05:00
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2020-03-28 19:33:43 -04:00
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2012-12-10 14:04:46 -05:00
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2018-05-22 16:15:24 -04:00
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2012-12-10 14:04:46 -05:00
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2022-08-17 10:59:28 +08:00
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2012-12-10 14:04:46 -05:00
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2021-06-03 07:33:02 +05:30
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2012-12-10 14:06:02 -05:00
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2012-12-10 14:04:46 -05:00
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2014-05-12 10:50:23 -04:00
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2012-12-10 14:04:46 -05:00
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2023-06-16 18:50:49 +02:00
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2017-02-05 01:28:48 -05:00
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2012-12-10 14:04:46 -05:00
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2014-05-12 22:06:43 -04:00
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2021-08-16 11:57:04 +02:00
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2012-12-10 14:04:46 -05:00
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2012-12-11 03:31:49 -05:00
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2012-12-10 14:04:46 -05:00
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2020-04-25 02:16:24 +09:00
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2012-12-10 14:04:46 -05:00
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2021-06-03 07:33:02 +05:30
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2012-12-10 14:04:46 -05:00
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2016-12-10 09:56:01 -05:00
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2012-12-10 14:04:46 -05:00
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2016-12-10 09:56:01 -05:00
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2012-12-10 14:04:46 -05:00
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2023-05-12 15:16:27 -04:00
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2012-12-10 14:04:46 -05:00
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2014-05-12 22:06:43 -04:00
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2021-08-16 11:57:04 +02:00
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2012-12-10 14:04:46 -05:00
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2020-08-04 19:48:50 -07:00
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2012-12-10 14:04:46 -05:00
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2021-06-03 07:33:02 +05:30
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2012-12-10 14:04:46 -05:00
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2014-05-12 10:50:23 -04:00
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2012-12-10 14:04:46 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:04:46 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:04:46 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:04:46 -05:00
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2014-05-12 22:06:43 -04:00
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2021-08-16 11:57:04 +02:00
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2012-12-10 14:04:46 -05:00
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2021-06-03 07:33:02 +05:30
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2012-12-10 14:04:46 -05:00
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2018-06-15 12:28:16 -04:00
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2012-12-10 14:04:46 -05:00
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2015-10-17 16:18:43 -04:00
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2012-12-10 14:04:46 -05:00
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2023-03-24 18:01:14 +00:00
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2012-12-10 14:04:52 -05:00
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2023-03-24 18:01:14 +00:00
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2012-12-10 14:04:52 -05:00
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2023-03-24 18:01:14 +00:00
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2012-12-10 14:04:52 -05:00
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2023-03-24 18:01:14 +00:00
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2012-12-10 14:04:52 -05:00
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2023-03-24 18:01:14 +00:00
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2012-12-10 14:04:52 -05:00
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2023-03-24 18:01:09 +00:00
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2012-12-10 14:04:52 -05:00
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2023-03-24 18:01:09 +00:00
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2023-03-24 18:01:14 +00:00
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2023-03-24 18:01:09 +00:00
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2012-12-10 14:04:52 -05:00
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2023-03-24 18:01:09 +00:00
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2012-12-10 14:04:52 -05:00
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2012-12-10 14:05:51 -05:00
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2022-02-22 10:36:28 -05:00
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2012-12-10 14:05:51 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:05:51 -05:00
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2023-03-24 18:01:10 +00:00
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2012-12-10 14:05:51 -05:00
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2013-02-08 21:59:22 -05:00
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2012-12-10 14:05:51 -05:00
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2023-03-24 18:01:10 +00:00
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|
- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of
switching from a user process to a kernel thread.
- More folio conversions from Kefeng Wang, Zhang Peng and Pankaj Raghav.
- zsmalloc performance improvements from Sergey Senozhatsky.
- Yue Zhao has found and fixed some data race issues around the
alteration of memcg userspace tunables.
- VFS rationalizations from Christoph Hellwig:
- removal of most of the callers of write_one_page().
- make __filemap_get_folio()'s return value more useful
- Luis Chamberlain has changed tmpfs so it no longer requires swap
backing. Use `mount -o noswap'.
- Qi Zheng has made the slab shrinkers operate locklessly, providing
some scalability benefits.
- Keith Busch has improved dmapool's performance, making part of its
operations O(1) rather than O(n).
- Peter Xu adds the UFFD_FEATURE_WP_UNPOPULATED feature to userfaultd,
permitting userspace to wr-protect anon memory unpopulated ptes.
- Kirill Shutemov has changed MAX_ORDER's meaning to be inclusive rather
than exclusive, and has fixed a bunch of errors which were caused by its
unintuitive meaning.
- Axel Rasmussen give userfaultfd the UFFDIO_CONTINUE_MODE_WP feature,
which causes minor faults to install a write-protected pte.
- Vlastimil Babka has done some maintenance work on vma_merge():
cleanups to the kernel code and improvements to our userspace test
harness.
- Cleanups to do_fault_around() by Lorenzo Stoakes.
- Mike Rapoport has moved a lot of initialization code out of various
mm/ files and into mm/mm_init.c.
- Lorenzo Stoakes removd vmf_insert_mixed_prot(), which was added for
DRM, but DRM doesn't use it any more.
- Lorenzo has also coverted read_kcore() and vread() to use iterators
and has thereby removed the use of bounce buffers in some cases.
- Lorenzo has also contributed further cleanups of vma_merge().
- Chaitanya Prakash provides some fixes to the mmap selftesting code.
- Matthew Wilcox changes xfs and afs so they no longer take sleeping
locks in ->map_page(), a step towards RCUification of pagefaults.
- Suren Baghdasaryan has improved mmap_lock scalability by switching to
per-VMA locking.
- Frederic Weisbecker has reworked the percpu cache draining so that it
no longer causes latency glitches on cpu isolated workloads.
- Mike Rapoport cleans up and corrects the ARCH_FORCE_MAX_ORDER Kconfig
logic.
- Liu Shixin has changed zswap's initialization so we no longer waste a
chunk of memory if zswap is not being used.
- Yosry Ahmed has improved the performance of memcg statistics flushing.
- David Stevens has fixed several issues involving khugepaged,
userfaultfd and shmem.
- Christoph Hellwig has provided some cleanup work to zram's IO-related
code paths.
- David Hildenbrand has fixed up some issues in the selftest code's
testing of our pte state changing.
- Pankaj Raghav has made page_endio() unneeded and has removed it.
- Peter Xu contributed some rationalizations of the userfaultfd
selftests.
- Yosry Ahmed has fixed an issue around memcg's page recalim accounting.
- Chaitanya Prakash has fixed some arm-related issues in the
selftests/mm code.
- Longlong Xia has improved the way in which KSM handles hwpoisoned
pages.
- Peter Xu fixes a few issues with uffd-wp at fork() time.
- Stefan Roesch has changed KSM so that it may now be used on a
per-process and per-cgroup basis.
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZEr3zQAKCRDdBJ7gKXxA
jlLoAP0fpQBipwFxED0Us4SKQfupV6z4caXNJGPeay7Aj11/kQD/aMRC2uPfgr96
eMG3kwn2pqkB9ST2QpkaRbxA//eMbQY=
=J+Dj
-----END PGP SIGNATURE-----
Merge tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of
switching from a user process to a kernel thread.
- More folio conversions from Kefeng Wang, Zhang Peng and Pankaj
Raghav.
- zsmalloc performance improvements from Sergey Senozhatsky.
- Yue Zhao has found and fixed some data race issues around the
alteration of memcg userspace tunables.
- VFS rationalizations from Christoph Hellwig:
- removal of most of the callers of write_one_page()
- make __filemap_get_folio()'s return value more useful
- Luis Chamberlain has changed tmpfs so it no longer requires swap
backing. Use `mount -o noswap'.
- Qi Zheng has made the slab shrinkers operate locklessly, providing
some scalability benefits.
- Keith Busch has improved dmapool's performance, making part of its
operations O(1) rather than O(n).
- Peter Xu adds the UFFD_FEATURE_WP_UNPOPULATED feature to userfaultd,
permitting userspace to wr-protect anon memory unpopulated ptes.
- Kirill Shutemov has changed MAX_ORDER's meaning to be inclusive
rather than exclusive, and has fixed a bunch of errors which were
caused by its unintuitive meaning.
- Axel Rasmussen give userfaultfd the UFFDIO_CONTINUE_MODE_WP feature,
which causes minor faults to install a write-protected pte.
- Vlastimil Babka has done some maintenance work on vma_merge():
cleanups to the kernel code and improvements to our userspace test
harness.
- Cleanups to do_fault_around() by Lorenzo Stoakes.
- Mike Rapoport has moved a lot of initialization code out of various
mm/ files and into mm/mm_init.c.
- Lorenzo Stoakes removd vmf_insert_mixed_prot(), which was added for
DRM, but DRM doesn't use it any more.
- Lorenzo has also coverted read_kcore() and vread() to use iterators
and has thereby removed the use of bounce buffers in some cases.
- Lorenzo has also contributed further cleanups of vma_merge().
- Chaitanya Prakash provides some fixes to the mmap selftesting code.
- Matthew Wilcox changes xfs and afs so they no longer take sleeping
locks in ->map_page(), a step towards RCUification of pagefaults.
- Suren Baghdasaryan has improved mmap_lock scalability by switching to
per-VMA locking.
- Frederic Weisbecker has reworked the percpu cache draining so that it
no longer causes latency glitches on cpu isolated workloads.
- Mike Rapoport cleans up and corrects the ARCH_FORCE_MAX_ORDER Kconfig
logic.
- Liu Shixin has changed zswap's initialization so we no longer waste a
chunk of memory if zswap is not being used.
- Yosry Ahmed has improved the performance of memcg statistics
flushing.
- David Stevens has fixed several issues involving khugepaged,
userfaultfd and shmem.
- Christoph Hellwig has provided some cleanup work to zram's IO-related
code paths.
- David Hildenbrand has fixed up some issues in the selftest code's
testing of our pte state changing.
- Pankaj Raghav has made page_endio() unneeded and has removed it.
- Peter Xu contributed some rationalizations of the userfaultfd
selftests.
- Yosry Ahmed has fixed an issue around memcg's page recalim
accounting.
- Chaitanya Prakash has fixed some arm-related issues in the
selftests/mm code.
- Longlong Xia has improved the way in which KSM handles hwpoisoned
pages.
- Peter Xu fixes a few issues with uffd-wp at fork() time.
- Stefan Roesch has changed KSM so that it may now be used on a
per-process and per-cgroup basis.
* tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (369 commits)
mm,unmap: avoid flushing TLB in batch if PTE is inaccessible
shmem: restrict noswap option to initial user namespace
mm/khugepaged: fix conflicting mods to collapse_file()
sparse: remove unnecessary 0 values from rc
mm: move 'mmap_min_addr' logic from callers into vm_unmapped_area()
hugetlb: pte_alloc_huge() to replace huge pte_alloc_map()
maple_tree: fix allocation in mas_sparse_area()
mm: do not increment pgfault stats when page fault handler retries
zsmalloc: allow only one active pool compaction context
selftests/mm: add new selftests for KSM
mm: add new KSM process and sysfs knobs
mm: add new api to enable ksm per process
mm: shrinkers: fix debugfs file permissions
mm: don't check VMA write permissions if the PTE/PMD indicates write permissions
migrate_pages_batch: fix statistics for longterm pin retry
userfaultfd: use helper function range_in_vma()
lib/show_mem.c: use for_each_populated_zone() simplify code
mm: correct arg in reclaim_pages()/reclaim_clean_pages_from_list()
fs/buffer: convert create_page_buffers to folio_create_buffers
fs/buffer: add folio_create_empty_buffers helper
...
2023-04-27 19:42:02 -07:00
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2012-12-10 14:05:51 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:05:51 -05:00
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2023-03-24 18:01:10 +00:00
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2023-03-24 18:01:14 +00:00
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2012-12-10 14:05:51 -05:00
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2016-03-08 23:08:10 -05:00
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2023-03-24 18:01:10 +00:00
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2016-03-08 23:08:10 -05:00
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2023-03-24 18:01:10 +00:00
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2012-12-10 14:05:51 -05:00
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2023-03-24 18:01:10 +00:00
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2012-12-10 14:05:51 -05:00
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2023-03-24 18:01:10 +00:00
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2012-12-10 14:05:51 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:05:51 -05:00
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2023-03-24 18:01:10 +00:00
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2012-12-10 14:05:51 -05:00
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2023-03-24 18:01:10 +00:00
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2012-12-10 14:05:51 -05:00
|
|
|
|
- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of
switching from a user process to a kernel thread.
- More folio conversions from Kefeng Wang, Zhang Peng and Pankaj Raghav.
- zsmalloc performance improvements from Sergey Senozhatsky.
- Yue Zhao has found and fixed some data race issues around the
alteration of memcg userspace tunables.
- VFS rationalizations from Christoph Hellwig:
- removal of most of the callers of write_one_page().
- make __filemap_get_folio()'s return value more useful
- Luis Chamberlain has changed tmpfs so it no longer requires swap
backing. Use `mount -o noswap'.
- Qi Zheng has made the slab shrinkers operate locklessly, providing
some scalability benefits.
- Keith Busch has improved dmapool's performance, making part of its
operations O(1) rather than O(n).
- Peter Xu adds the UFFD_FEATURE_WP_UNPOPULATED feature to userfaultd,
permitting userspace to wr-protect anon memory unpopulated ptes.
- Kirill Shutemov has changed MAX_ORDER's meaning to be inclusive rather
than exclusive, and has fixed a bunch of errors which were caused by its
unintuitive meaning.
- Axel Rasmussen give userfaultfd the UFFDIO_CONTINUE_MODE_WP feature,
which causes minor faults to install a write-protected pte.
- Vlastimil Babka has done some maintenance work on vma_merge():
cleanups to the kernel code and improvements to our userspace test
harness.
- Cleanups to do_fault_around() by Lorenzo Stoakes.
- Mike Rapoport has moved a lot of initialization code out of various
mm/ files and into mm/mm_init.c.
- Lorenzo Stoakes removd vmf_insert_mixed_prot(), which was added for
DRM, but DRM doesn't use it any more.
- Lorenzo has also coverted read_kcore() and vread() to use iterators
and has thereby removed the use of bounce buffers in some cases.
- Lorenzo has also contributed further cleanups of vma_merge().
- Chaitanya Prakash provides some fixes to the mmap selftesting code.
- Matthew Wilcox changes xfs and afs so they no longer take sleeping
locks in ->map_page(), a step towards RCUification of pagefaults.
- Suren Baghdasaryan has improved mmap_lock scalability by switching to
per-VMA locking.
- Frederic Weisbecker has reworked the percpu cache draining so that it
no longer causes latency glitches on cpu isolated workloads.
- Mike Rapoport cleans up and corrects the ARCH_FORCE_MAX_ORDER Kconfig
logic.
- Liu Shixin has changed zswap's initialization so we no longer waste a
chunk of memory if zswap is not being used.
- Yosry Ahmed has improved the performance of memcg statistics flushing.
- David Stevens has fixed several issues involving khugepaged,
userfaultfd and shmem.
- Christoph Hellwig has provided some cleanup work to zram's IO-related
code paths.
- David Hildenbrand has fixed up some issues in the selftest code's
testing of our pte state changing.
- Pankaj Raghav has made page_endio() unneeded and has removed it.
- Peter Xu contributed some rationalizations of the userfaultfd
selftests.
- Yosry Ahmed has fixed an issue around memcg's page recalim accounting.
- Chaitanya Prakash has fixed some arm-related issues in the
selftests/mm code.
- Longlong Xia has improved the way in which KSM handles hwpoisoned
pages.
- Peter Xu fixes a few issues with uffd-wp at fork() time.
- Stefan Roesch has changed KSM so that it may now be used on a
per-process and per-cgroup basis.
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZEr3zQAKCRDdBJ7gKXxA
jlLoAP0fpQBipwFxED0Us4SKQfupV6z4caXNJGPeay7Aj11/kQD/aMRC2uPfgr96
eMG3kwn2pqkB9ST2QpkaRbxA//eMbQY=
=J+Dj
-----END PGP SIGNATURE-----
Merge tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of
switching from a user process to a kernel thread.
- More folio conversions from Kefeng Wang, Zhang Peng and Pankaj
Raghav.
- zsmalloc performance improvements from Sergey Senozhatsky.
- Yue Zhao has found and fixed some data race issues around the
alteration of memcg userspace tunables.
- VFS rationalizations from Christoph Hellwig:
- removal of most of the callers of write_one_page()
- make __filemap_get_folio()'s return value more useful
- Luis Chamberlain has changed tmpfs so it no longer requires swap
backing. Use `mount -o noswap'.
- Qi Zheng has made the slab shrinkers operate locklessly, providing
some scalability benefits.
- Keith Busch has improved dmapool's performance, making part of its
operations O(1) rather than O(n).
- Peter Xu adds the UFFD_FEATURE_WP_UNPOPULATED feature to userfaultd,
permitting userspace to wr-protect anon memory unpopulated ptes.
- Kirill Shutemov has changed MAX_ORDER's meaning to be inclusive
rather than exclusive, and has fixed a bunch of errors which were
caused by its unintuitive meaning.
- Axel Rasmussen give userfaultfd the UFFDIO_CONTINUE_MODE_WP feature,
which causes minor faults to install a write-protected pte.
- Vlastimil Babka has done some maintenance work on vma_merge():
cleanups to the kernel code and improvements to our userspace test
harness.
- Cleanups to do_fault_around() by Lorenzo Stoakes.
- Mike Rapoport has moved a lot of initialization code out of various
mm/ files and into mm/mm_init.c.
- Lorenzo Stoakes removd vmf_insert_mixed_prot(), which was added for
DRM, but DRM doesn't use it any more.
- Lorenzo has also coverted read_kcore() and vread() to use iterators
and has thereby removed the use of bounce buffers in some cases.
- Lorenzo has also contributed further cleanups of vma_merge().
- Chaitanya Prakash provides some fixes to the mmap selftesting code.
- Matthew Wilcox changes xfs and afs so they no longer take sleeping
locks in ->map_page(), a step towards RCUification of pagefaults.
- Suren Baghdasaryan has improved mmap_lock scalability by switching to
per-VMA locking.
- Frederic Weisbecker has reworked the percpu cache draining so that it
no longer causes latency glitches on cpu isolated workloads.
- Mike Rapoport cleans up and corrects the ARCH_FORCE_MAX_ORDER Kconfig
logic.
- Liu Shixin has changed zswap's initialization so we no longer waste a
chunk of memory if zswap is not being used.
- Yosry Ahmed has improved the performance of memcg statistics
flushing.
- David Stevens has fixed several issues involving khugepaged,
userfaultfd and shmem.
- Christoph Hellwig has provided some cleanup work to zram's IO-related
code paths.
- David Hildenbrand has fixed up some issues in the selftest code's
testing of our pte state changing.
- Pankaj Raghav has made page_endio() unneeded and has removed it.
- Peter Xu contributed some rationalizations of the userfaultfd
selftests.
- Yosry Ahmed has fixed an issue around memcg's page recalim
accounting.
- Chaitanya Prakash has fixed some arm-related issues in the
selftests/mm code.
- Longlong Xia has improved the way in which KSM handles hwpoisoned
pages.
- Peter Xu fixes a few issues with uffd-wp at fork() time.
- Stefan Roesch has changed KSM so that it may now be used on a
per-process and per-cgroup basis.
* tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (369 commits)
mm,unmap: avoid flushing TLB in batch if PTE is inaccessible
shmem: restrict noswap option to initial user namespace
mm/khugepaged: fix conflicting mods to collapse_file()
sparse: remove unnecessary 0 values from rc
mm: move 'mmap_min_addr' logic from callers into vm_unmapped_area()
hugetlb: pte_alloc_huge() to replace huge pte_alloc_map()
maple_tree: fix allocation in mas_sparse_area()
mm: do not increment pgfault stats when page fault handler retries
zsmalloc: allow only one active pool compaction context
selftests/mm: add new selftests for KSM
mm: add new KSM process and sysfs knobs
mm: add new api to enable ksm per process
mm: shrinkers: fix debugfs file permissions
mm: don't check VMA write permissions if the PTE/PMD indicates write permissions
migrate_pages_batch: fix statistics for longterm pin retry
userfaultfd: use helper function range_in_vma()
lib/show_mem.c: use for_each_populated_zone() simplify code
mm: correct arg in reclaim_pages()/reclaim_clean_pages_from_list()
fs/buffer: convert create_page_buffers to folio_create_buffers
fs/buffer: add folio_create_empty_buffers helper
...
2023-04-27 19:42:02 -07:00
|
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2012-12-10 14:05:51 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:05:51 -05:00
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2023-03-24 18:01:11 +00:00
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2012-12-10 14:05:51 -05:00
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2013-02-08 21:59:22 -05:00
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2012-12-10 14:05:51 -05:00
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2021-08-16 11:57:04 +02:00
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2018-07-10 01:07:43 -04:00
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|
2023-03-24 18:01:11 +00:00
|
|
|
|
|
|
|
|
|
- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of
switching from a user process to a kernel thread.
- More folio conversions from Kefeng Wang, Zhang Peng and Pankaj Raghav.
- zsmalloc performance improvements from Sergey Senozhatsky.
- Yue Zhao has found and fixed some data race issues around the
alteration of memcg userspace tunables.
- VFS rationalizations from Christoph Hellwig:
- removal of most of the callers of write_one_page().
- make __filemap_get_folio()'s return value more useful
- Luis Chamberlain has changed tmpfs so it no longer requires swap
backing. Use `mount -o noswap'.
- Qi Zheng has made the slab shrinkers operate locklessly, providing
some scalability benefits.
- Keith Busch has improved dmapool's performance, making part of its
operations O(1) rather than O(n).
- Peter Xu adds the UFFD_FEATURE_WP_UNPOPULATED feature to userfaultd,
permitting userspace to wr-protect anon memory unpopulated ptes.
- Kirill Shutemov has changed MAX_ORDER's meaning to be inclusive rather
than exclusive, and has fixed a bunch of errors which were caused by its
unintuitive meaning.
- Axel Rasmussen give userfaultfd the UFFDIO_CONTINUE_MODE_WP feature,
which causes minor faults to install a write-protected pte.
- Vlastimil Babka has done some maintenance work on vma_merge():
cleanups to the kernel code and improvements to our userspace test
harness.
- Cleanups to do_fault_around() by Lorenzo Stoakes.
- Mike Rapoport has moved a lot of initialization code out of various
mm/ files and into mm/mm_init.c.
- Lorenzo Stoakes removd vmf_insert_mixed_prot(), which was added for
DRM, but DRM doesn't use it any more.
- Lorenzo has also coverted read_kcore() and vread() to use iterators
and has thereby removed the use of bounce buffers in some cases.
- Lorenzo has also contributed further cleanups of vma_merge().
- Chaitanya Prakash provides some fixes to the mmap selftesting code.
- Matthew Wilcox changes xfs and afs so they no longer take sleeping
locks in ->map_page(), a step towards RCUification of pagefaults.
- Suren Baghdasaryan has improved mmap_lock scalability by switching to
per-VMA locking.
- Frederic Weisbecker has reworked the percpu cache draining so that it
no longer causes latency glitches on cpu isolated workloads.
- Mike Rapoport cleans up and corrects the ARCH_FORCE_MAX_ORDER Kconfig
logic.
- Liu Shixin has changed zswap's initialization so we no longer waste a
chunk of memory if zswap is not being used.
- Yosry Ahmed has improved the performance of memcg statistics flushing.
- David Stevens has fixed several issues involving khugepaged,
userfaultfd and shmem.
- Christoph Hellwig has provided some cleanup work to zram's IO-related
code paths.
- David Hildenbrand has fixed up some issues in the selftest code's
testing of our pte state changing.
- Pankaj Raghav has made page_endio() unneeded and has removed it.
- Peter Xu contributed some rationalizations of the userfaultfd
selftests.
- Yosry Ahmed has fixed an issue around memcg's page recalim accounting.
- Chaitanya Prakash has fixed some arm-related issues in the
selftests/mm code.
- Longlong Xia has improved the way in which KSM handles hwpoisoned
pages.
- Peter Xu fixes a few issues with uffd-wp at fork() time.
- Stefan Roesch has changed KSM so that it may now be used on a
per-process and per-cgroup basis.
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZEr3zQAKCRDdBJ7gKXxA
jlLoAP0fpQBipwFxED0Us4SKQfupV6z4caXNJGPeay7Aj11/kQD/aMRC2uPfgr96
eMG3kwn2pqkB9ST2QpkaRbxA//eMbQY=
=J+Dj
-----END PGP SIGNATURE-----
Merge tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of
switching from a user process to a kernel thread.
- More folio conversions from Kefeng Wang, Zhang Peng and Pankaj
Raghav.
- zsmalloc performance improvements from Sergey Senozhatsky.
- Yue Zhao has found and fixed some data race issues around the
alteration of memcg userspace tunables.
- VFS rationalizations from Christoph Hellwig:
- removal of most of the callers of write_one_page()
- make __filemap_get_folio()'s return value more useful
- Luis Chamberlain has changed tmpfs so it no longer requires swap
backing. Use `mount -o noswap'.
- Qi Zheng has made the slab shrinkers operate locklessly, providing
some scalability benefits.
- Keith Busch has improved dmapool's performance, making part of its
operations O(1) rather than O(n).
- Peter Xu adds the UFFD_FEATURE_WP_UNPOPULATED feature to userfaultd,
permitting userspace to wr-protect anon memory unpopulated ptes.
- Kirill Shutemov has changed MAX_ORDER's meaning to be inclusive
rather than exclusive, and has fixed a bunch of errors which were
caused by its unintuitive meaning.
- Axel Rasmussen give userfaultfd the UFFDIO_CONTINUE_MODE_WP feature,
which causes minor faults to install a write-protected pte.
- Vlastimil Babka has done some maintenance work on vma_merge():
cleanups to the kernel code and improvements to our userspace test
harness.
- Cleanups to do_fault_around() by Lorenzo Stoakes.
- Mike Rapoport has moved a lot of initialization code out of various
mm/ files and into mm/mm_init.c.
- Lorenzo Stoakes removd vmf_insert_mixed_prot(), which was added for
DRM, but DRM doesn't use it any more.
- Lorenzo has also coverted read_kcore() and vread() to use iterators
and has thereby removed the use of bounce buffers in some cases.
- Lorenzo has also contributed further cleanups of vma_merge().
- Chaitanya Prakash provides some fixes to the mmap selftesting code.
- Matthew Wilcox changes xfs and afs so they no longer take sleeping
locks in ->map_page(), a step towards RCUification of pagefaults.
- Suren Baghdasaryan has improved mmap_lock scalability by switching to
per-VMA locking.
- Frederic Weisbecker has reworked the percpu cache draining so that it
no longer causes latency glitches on cpu isolated workloads.
- Mike Rapoport cleans up and corrects the ARCH_FORCE_MAX_ORDER Kconfig
logic.
- Liu Shixin has changed zswap's initialization so we no longer waste a
chunk of memory if zswap is not being used.
- Yosry Ahmed has improved the performance of memcg statistics
flushing.
- David Stevens has fixed several issues involving khugepaged,
userfaultfd and shmem.
- Christoph Hellwig has provided some cleanup work to zram's IO-related
code paths.
- David Hildenbrand has fixed up some issues in the selftest code's
testing of our pte state changing.
- Pankaj Raghav has made page_endio() unneeded and has removed it.
- Peter Xu contributed some rationalizations of the userfaultfd
selftests.
- Yosry Ahmed has fixed an issue around memcg's page recalim
accounting.
- Chaitanya Prakash has fixed some arm-related issues in the
selftests/mm code.
- Longlong Xia has improved the way in which KSM handles hwpoisoned
pages.
- Peter Xu fixes a few issues with uffd-wp at fork() time.
- Stefan Roesch has changed KSM so that it may now be used on a
per-process and per-cgroup basis.
* tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (369 commits)
mm,unmap: avoid flushing TLB in batch if PTE is inaccessible
shmem: restrict noswap option to initial user namespace
mm/khugepaged: fix conflicting mods to collapse_file()
sparse: remove unnecessary 0 values from rc
mm: move 'mmap_min_addr' logic from callers into vm_unmapped_area()
hugetlb: pte_alloc_huge() to replace huge pte_alloc_map()
maple_tree: fix allocation in mas_sparse_area()
mm: do not increment pgfault stats when page fault handler retries
zsmalloc: allow only one active pool compaction context
selftests/mm: add new selftests for KSM
mm: add new KSM process and sysfs knobs
mm: add new api to enable ksm per process
mm: shrinkers: fix debugfs file permissions
mm: don't check VMA write permissions if the PTE/PMD indicates write permissions
migrate_pages_batch: fix statistics for longterm pin retry
userfaultfd: use helper function range_in_vma()
lib/show_mem.c: use for_each_populated_zone() simplify code
mm: correct arg in reclaim_pages()/reclaim_clean_pages_from_list()
fs/buffer: convert create_page_buffers to folio_create_buffers
fs/buffer: add folio_create_empty_buffers helper
...
2023-04-27 19:42:02 -07:00
|
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2012-12-10 14:05:51 -05:00
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2023-03-24 18:01:11 +00:00
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2012-12-10 14:05:51 -05:00
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2023-03-24 18:01:11 +00:00
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2012-12-10 14:05:51 -05:00
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2023-03-24 18:01:11 +00:00
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2023-03-24 18:01:14 +00:00
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2018-12-04 00:06:53 -05:00
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2023-03-24 18:01:11 +00:00
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2012-12-10 14:05:51 -05:00
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2018-12-04 00:06:53 -05:00
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2012-12-10 14:05:51 -05:00
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2018-07-10 01:07:43 -04:00
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2012-12-10 14:05:51 -05:00
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2022-02-22 10:36:28 -05:00
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2012-12-10 14:05:51 -05:00
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2023-05-15 16:10:44 +05:30
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2012-12-10 14:05:51 -05:00
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2021-07-16 20:20:23 +08:00
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2012-12-10 14:05:51 -05:00
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2021-07-16 20:20:23 +08:00
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2012-12-10 14:05:51 -05:00
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2023-03-24 18:01:15 +00:00
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2021-07-16 20:20:23 +08:00
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2012-12-10 14:05:51 -05:00
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2021-07-16 20:20:23 +08:00
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2023-03-24 18:01:15 +00:00
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2021-07-16 20:20:23 +08:00
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2012-12-10 14:05:51 -05:00
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2021-07-16 20:20:23 +08:00
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2012-12-10 14:05:51 -05:00
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2021-09-04 23:46:32 -04:00
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2012-12-10 14:05:51 -05:00
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2023-03-24 18:01:15 +00:00
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2021-07-16 20:20:23 +08:00
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2023-03-24 18:01:15 +00:00
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2012-12-10 14:05:51 -05:00
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2021-07-16 20:20:23 +08:00
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2021-08-20 23:44:17 -04:00
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2021-07-16 20:20:23 +08:00
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2023-03-24 18:01:15 +00:00
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2021-07-16 20:20:23 +08:00
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2023-03-24 18:01:15 +00:00
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2012-12-10 14:05:51 -05:00
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2021-07-16 20:20:23 +08:00
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2023-03-24 18:01:15 +00:00
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2021-07-16 20:20:23 +08:00
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2012-12-10 14:05:51 -05:00
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2021-07-16 20:20:23 +08:00
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2021-07-16 20:20:22 +08:00
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2021-07-16 20:20:23 +08:00
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2012-12-10 14:05:51 -05:00
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2012-12-10 14:05:57 -05:00
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2021-03-27 16:00:05 +05:30
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2012-12-10 14:05:57 -05:00
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2023-03-24 18:01:12 +00:00
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2012-12-10 14:05:57 -05:00
|
|
|
|
2023-03-24 18:01:12 +00:00
|
|
|
|
|
|
|
|
|
- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of
switching from a user process to a kernel thread.
- More folio conversions from Kefeng Wang, Zhang Peng and Pankaj Raghav.
- zsmalloc performance improvements from Sergey Senozhatsky.
- Yue Zhao has found and fixed some data race issues around the
alteration of memcg userspace tunables.
- VFS rationalizations from Christoph Hellwig:
- removal of most of the callers of write_one_page().
- make __filemap_get_folio()'s return value more useful
- Luis Chamberlain has changed tmpfs so it no longer requires swap
backing. Use `mount -o noswap'.
- Qi Zheng has made the slab shrinkers operate locklessly, providing
some scalability benefits.
- Keith Busch has improved dmapool's performance, making part of its
operations O(1) rather than O(n).
- Peter Xu adds the UFFD_FEATURE_WP_UNPOPULATED feature to userfaultd,
permitting userspace to wr-protect anon memory unpopulated ptes.
- Kirill Shutemov has changed MAX_ORDER's meaning to be inclusive rather
than exclusive, and has fixed a bunch of errors which were caused by its
unintuitive meaning.
- Axel Rasmussen give userfaultfd the UFFDIO_CONTINUE_MODE_WP feature,
which causes minor faults to install a write-protected pte.
- Vlastimil Babka has done some maintenance work on vma_merge():
cleanups to the kernel code and improvements to our userspace test
harness.
- Cleanups to do_fault_around() by Lorenzo Stoakes.
- Mike Rapoport has moved a lot of initialization code out of various
mm/ files and into mm/mm_init.c.
- Lorenzo Stoakes removd vmf_insert_mixed_prot(), which was added for
DRM, but DRM doesn't use it any more.
- Lorenzo has also coverted read_kcore() and vread() to use iterators
and has thereby removed the use of bounce buffers in some cases.
- Lorenzo has also contributed further cleanups of vma_merge().
- Chaitanya Prakash provides some fixes to the mmap selftesting code.
- Matthew Wilcox changes xfs and afs so they no longer take sleeping
locks in ->map_page(), a step towards RCUification of pagefaults.
- Suren Baghdasaryan has improved mmap_lock scalability by switching to
per-VMA locking.
- Frederic Weisbecker has reworked the percpu cache draining so that it
no longer causes latency glitches on cpu isolated workloads.
- Mike Rapoport cleans up and corrects the ARCH_FORCE_MAX_ORDER Kconfig
logic.
- Liu Shixin has changed zswap's initialization so we no longer waste a
chunk of memory if zswap is not being used.
- Yosry Ahmed has improved the performance of memcg statistics flushing.
- David Stevens has fixed several issues involving khugepaged,
userfaultfd and shmem.
- Christoph Hellwig has provided some cleanup work to zram's IO-related
code paths.
- David Hildenbrand has fixed up some issues in the selftest code's
testing of our pte state changing.
- Pankaj Raghav has made page_endio() unneeded and has removed it.
- Peter Xu contributed some rationalizations of the userfaultfd
selftests.
- Yosry Ahmed has fixed an issue around memcg's page recalim accounting.
- Chaitanya Prakash has fixed some arm-related issues in the
selftests/mm code.
- Longlong Xia has improved the way in which KSM handles hwpoisoned
pages.
- Peter Xu fixes a few issues with uffd-wp at fork() time.
- Stefan Roesch has changed KSM so that it may now be used on a
per-process and per-cgroup basis.
-----BEGIN PGP SIGNATURE-----
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jlLoAP0fpQBipwFxED0Us4SKQfupV6z4caXNJGPeay7Aj11/kQD/aMRC2uPfgr96
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=J+Dj
-----END PGP SIGNATURE-----
Merge tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of
switching from a user process to a kernel thread.
- More folio conversions from Kefeng Wang, Zhang Peng and Pankaj
Raghav.
- zsmalloc performance improvements from Sergey Senozhatsky.
- Yue Zhao has found and fixed some data race issues around the
alteration of memcg userspace tunables.
- VFS rationalizations from Christoph Hellwig:
- removal of most of the callers of write_one_page()
- make __filemap_get_folio()'s return value more useful
- Luis Chamberlain has changed tmpfs so it no longer requires swap
backing. Use `mount -o noswap'.
- Qi Zheng has made the slab shrinkers operate locklessly, providing
some scalability benefits.
- Keith Busch has improved dmapool's performance, making part of its
operations O(1) rather than O(n).
- Peter Xu adds the UFFD_FEATURE_WP_UNPOPULATED feature to userfaultd,
permitting userspace to wr-protect anon memory unpopulated ptes.
- Kirill Shutemov has changed MAX_ORDER's meaning to be inclusive
rather than exclusive, and has fixed a bunch of errors which were
caused by its unintuitive meaning.
- Axel Rasmussen give userfaultfd the UFFDIO_CONTINUE_MODE_WP feature,
which causes minor faults to install a write-protected pte.
- Vlastimil Babka has done some maintenance work on vma_merge():
cleanups to the kernel code and improvements to our userspace test
harness.
- Cleanups to do_fault_around() by Lorenzo Stoakes.
- Mike Rapoport has moved a lot of initialization code out of various
mm/ files and into mm/mm_init.c.
- Lorenzo Stoakes removd vmf_insert_mixed_prot(), which was added for
DRM, but DRM doesn't use it any more.
- Lorenzo has also coverted read_kcore() and vread() to use iterators
and has thereby removed the use of bounce buffers in some cases.
- Lorenzo has also contributed further cleanups of vma_merge().
- Chaitanya Prakash provides some fixes to the mmap selftesting code.
- Matthew Wilcox changes xfs and afs so they no longer take sleeping
locks in ->map_page(), a step towards RCUification of pagefaults.
- Suren Baghdasaryan has improved mmap_lock scalability by switching to
per-VMA locking.
- Frederic Weisbecker has reworked the percpu cache draining so that it
no longer causes latency glitches on cpu isolated workloads.
- Mike Rapoport cleans up and corrects the ARCH_FORCE_MAX_ORDER Kconfig
logic.
- Liu Shixin has changed zswap's initialization so we no longer waste a
chunk of memory if zswap is not being used.
- Yosry Ahmed has improved the performance of memcg statistics
flushing.
- David Stevens has fixed several issues involving khugepaged,
userfaultfd and shmem.
- Christoph Hellwig has provided some cleanup work to zram's IO-related
code paths.
- David Hildenbrand has fixed up some issues in the selftest code's
testing of our pte state changing.
- Pankaj Raghav has made page_endio() unneeded and has removed it.
- Peter Xu contributed some rationalizations of the userfaultfd
selftests.
- Yosry Ahmed has fixed an issue around memcg's page recalim
accounting.
- Chaitanya Prakash has fixed some arm-related issues in the
selftests/mm code.
- Longlong Xia has improved the way in which KSM handles hwpoisoned
pages.
- Peter Xu fixes a few issues with uffd-wp at fork() time.
- Stefan Roesch has changed KSM so that it may now be used on a
per-process and per-cgroup basis.
* tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (369 commits)
mm,unmap: avoid flushing TLB in batch if PTE is inaccessible
shmem: restrict noswap option to initial user namespace
mm/khugepaged: fix conflicting mods to collapse_file()
sparse: remove unnecessary 0 values from rc
mm: move 'mmap_min_addr' logic from callers into vm_unmapped_area()
hugetlb: pte_alloc_huge() to replace huge pte_alloc_map()
maple_tree: fix allocation in mas_sparse_area()
mm: do not increment pgfault stats when page fault handler retries
zsmalloc: allow only one active pool compaction context
selftests/mm: add new selftests for KSM
mm: add new KSM process and sysfs knobs
mm: add new api to enable ksm per process
mm: shrinkers: fix debugfs file permissions
mm: don't check VMA write permissions if the PTE/PMD indicates write permissions
migrate_pages_batch: fix statistics for longterm pin retry
userfaultfd: use helper function range_in_vma()
lib/show_mem.c: use for_each_populated_zone() simplify code
mm: correct arg in reclaim_pages()/reclaim_clean_pages_from_list()
fs/buffer: convert create_page_buffers to folio_create_buffers
fs/buffer: add folio_create_empty_buffers helper
...
2023-04-27 19:42:02 -07:00
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2012-12-10 14:05:57 -05:00
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2023-03-24 18:01:12 +00:00
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2023-03-24 18:01:14 +00:00
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2012-12-10 14:05:57 -05:00
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2023-03-24 18:01:12 +00:00
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2012-12-10 14:05:57 -05:00
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2014-12-05 21:37:15 -05:00
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2023-03-24 18:01:12 +00:00
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2012-12-10 14:05:57 -05:00
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2014-12-05 21:37:15 -05:00
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2012-12-10 14:05:57 -05:00
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2023-03-24 18:01:12 +00:00
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2012-12-10 14:05:57 -05:00
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2023-03-24 18:01:12 +00:00
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2012-12-10 14:05:57 -05:00
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2020-01-23 01:43:25 -05:00
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2012-12-10 14:05:57 -05:00
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2022-01-17 17:41:48 +05:30
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2012-12-10 14:05:57 -05:00
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2023-03-24 18:01:13 +00:00
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2012-12-10 14:05:57 -05:00
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2018-10-02 21:18:45 -04:00
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2012-12-10 14:05:57 -05:00
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2014-01-06 14:02:23 -05:00
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2013-02-08 21:59:22 -05:00
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2012-12-10 14:05:57 -05:00
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2022-01-17 17:41:48 +05:30
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2012-12-10 14:05:57 -05:00
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2018-06-16 23:41:59 -04:00
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2012-12-10 14:05:57 -05:00
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2014-01-06 14:02:23 -05:00
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2012-12-10 14:05:57 -05:00
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2022-02-22 10:36:28 -05:00
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2023-03-24 18:01:13 +00:00
|
|
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|
|
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|
|
- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of
switching from a user process to a kernel thread.
- More folio conversions from Kefeng Wang, Zhang Peng and Pankaj Raghav.
- zsmalloc performance improvements from Sergey Senozhatsky.
- Yue Zhao has found and fixed some data race issues around the
alteration of memcg userspace tunables.
- VFS rationalizations from Christoph Hellwig:
- removal of most of the callers of write_one_page().
- make __filemap_get_folio()'s return value more useful
- Luis Chamberlain has changed tmpfs so it no longer requires swap
backing. Use `mount -o noswap'.
- Qi Zheng has made the slab shrinkers operate locklessly, providing
some scalability benefits.
- Keith Busch has improved dmapool's performance, making part of its
operations O(1) rather than O(n).
- Peter Xu adds the UFFD_FEATURE_WP_UNPOPULATED feature to userfaultd,
permitting userspace to wr-protect anon memory unpopulated ptes.
- Kirill Shutemov has changed MAX_ORDER's meaning to be inclusive rather
than exclusive, and has fixed a bunch of errors which were caused by its
unintuitive meaning.
- Axel Rasmussen give userfaultfd the UFFDIO_CONTINUE_MODE_WP feature,
which causes minor faults to install a write-protected pte.
- Vlastimil Babka has done some maintenance work on vma_merge():
cleanups to the kernel code and improvements to our userspace test
harness.
- Cleanups to do_fault_around() by Lorenzo Stoakes.
- Mike Rapoport has moved a lot of initialization code out of various
mm/ files and into mm/mm_init.c.
- Lorenzo Stoakes removd vmf_insert_mixed_prot(), which was added for
DRM, but DRM doesn't use it any more.
- Lorenzo has also coverted read_kcore() and vread() to use iterators
and has thereby removed the use of bounce buffers in some cases.
- Lorenzo has also contributed further cleanups of vma_merge().
- Chaitanya Prakash provides some fixes to the mmap selftesting code.
- Matthew Wilcox changes xfs and afs so they no longer take sleeping
locks in ->map_page(), a step towards RCUification of pagefaults.
- Suren Baghdasaryan has improved mmap_lock scalability by switching to
per-VMA locking.
- Frederic Weisbecker has reworked the percpu cache draining so that it
no longer causes latency glitches on cpu isolated workloads.
- Mike Rapoport cleans up and corrects the ARCH_FORCE_MAX_ORDER Kconfig
logic.
- Liu Shixin has changed zswap's initialization so we no longer waste a
chunk of memory if zswap is not being used.
- Yosry Ahmed has improved the performance of memcg statistics flushing.
- David Stevens has fixed several issues involving khugepaged,
userfaultfd and shmem.
- Christoph Hellwig has provided some cleanup work to zram's IO-related
code paths.
- David Hildenbrand has fixed up some issues in the selftest code's
testing of our pte state changing.
- Pankaj Raghav has made page_endio() unneeded and has removed it.
- Peter Xu contributed some rationalizations of the userfaultfd
selftests.
- Yosry Ahmed has fixed an issue around memcg's page recalim accounting.
- Chaitanya Prakash has fixed some arm-related issues in the
selftests/mm code.
- Longlong Xia has improved the way in which KSM handles hwpoisoned
pages.
- Peter Xu fixes a few issues with uffd-wp at fork() time.
- Stefan Roesch has changed KSM so that it may now be used on a
per-process and per-cgroup basis.
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZEr3zQAKCRDdBJ7gKXxA
jlLoAP0fpQBipwFxED0Us4SKQfupV6z4caXNJGPeay7Aj11/kQD/aMRC2uPfgr96
eMG3kwn2pqkB9ST2QpkaRbxA//eMbQY=
=J+Dj
-----END PGP SIGNATURE-----
Merge tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of
switching from a user process to a kernel thread.
- More folio conversions from Kefeng Wang, Zhang Peng and Pankaj
Raghav.
- zsmalloc performance improvements from Sergey Senozhatsky.
- Yue Zhao has found and fixed some data race issues around the
alteration of memcg userspace tunables.
- VFS rationalizations from Christoph Hellwig:
- removal of most of the callers of write_one_page()
- make __filemap_get_folio()'s return value more useful
- Luis Chamberlain has changed tmpfs so it no longer requires swap
backing. Use `mount -o noswap'.
- Qi Zheng has made the slab shrinkers operate locklessly, providing
some scalability benefits.
- Keith Busch has improved dmapool's performance, making part of its
operations O(1) rather than O(n).
- Peter Xu adds the UFFD_FEATURE_WP_UNPOPULATED feature to userfaultd,
permitting userspace to wr-protect anon memory unpopulated ptes.
- Kirill Shutemov has changed MAX_ORDER's meaning to be inclusive
rather than exclusive, and has fixed a bunch of errors which were
caused by its unintuitive meaning.
- Axel Rasmussen give userfaultfd the UFFDIO_CONTINUE_MODE_WP feature,
which causes minor faults to install a write-protected pte.
- Vlastimil Babka has done some maintenance work on vma_merge():
cleanups to the kernel code and improvements to our userspace test
harness.
- Cleanups to do_fault_around() by Lorenzo Stoakes.
- Mike Rapoport has moved a lot of initialization code out of various
mm/ files and into mm/mm_init.c.
- Lorenzo Stoakes removd vmf_insert_mixed_prot(), which was added for
DRM, but DRM doesn't use it any more.
- Lorenzo has also coverted read_kcore() and vread() to use iterators
and has thereby removed the use of bounce buffers in some cases.
- Lorenzo has also contributed further cleanups of vma_merge().
- Chaitanya Prakash provides some fixes to the mmap selftesting code.
- Matthew Wilcox changes xfs and afs so they no longer take sleeping
locks in ->map_page(), a step towards RCUification of pagefaults.
- Suren Baghdasaryan has improved mmap_lock scalability by switching to
per-VMA locking.
- Frederic Weisbecker has reworked the percpu cache draining so that it
no longer causes latency glitches on cpu isolated workloads.
- Mike Rapoport cleans up and corrects the ARCH_FORCE_MAX_ORDER Kconfig
logic.
- Liu Shixin has changed zswap's initialization so we no longer waste a
chunk of memory if zswap is not being used.
- Yosry Ahmed has improved the performance of memcg statistics
flushing.
- David Stevens has fixed several issues involving khugepaged,
userfaultfd and shmem.
- Christoph Hellwig has provided some cleanup work to zram's IO-related
code paths.
- David Hildenbrand has fixed up some issues in the selftest code's
testing of our pte state changing.
- Pankaj Raghav has made page_endio() unneeded and has removed it.
- Peter Xu contributed some rationalizations of the userfaultfd
selftests.
- Yosry Ahmed has fixed an issue around memcg's page recalim
accounting.
- Chaitanya Prakash has fixed some arm-related issues in the
selftests/mm code.
- Longlong Xia has improved the way in which KSM handles hwpoisoned
pages.
- Peter Xu fixes a few issues with uffd-wp at fork() time.
- Stefan Roesch has changed KSM so that it may now be used on a
per-process and per-cgroup basis.
* tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (369 commits)
mm,unmap: avoid flushing TLB in batch if PTE is inaccessible
shmem: restrict noswap option to initial user namespace
mm/khugepaged: fix conflicting mods to collapse_file()
sparse: remove unnecessary 0 values from rc
mm: move 'mmap_min_addr' logic from callers into vm_unmapped_area()
hugetlb: pte_alloc_huge() to replace huge pte_alloc_map()
maple_tree: fix allocation in mas_sparse_area()
mm: do not increment pgfault stats when page fault handler retries
zsmalloc: allow only one active pool compaction context
selftests/mm: add new selftests for KSM
mm: add new KSM process and sysfs knobs
mm: add new api to enable ksm per process
mm: shrinkers: fix debugfs file permissions
mm: don't check VMA write permissions if the PTE/PMD indicates write permissions
migrate_pages_batch: fix statistics for longterm pin retry
userfaultfd: use helper function range_in_vma()
lib/show_mem.c: use for_each_populated_zone() simplify code
mm: correct arg in reclaim_pages()/reclaim_clean_pages_from_list()
fs/buffer: convert create_page_buffers to folio_create_buffers
fs/buffer: add folio_create_empty_buffers helper
...
2023-04-27 19:42:02 -07:00
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2014-01-06 14:03:23 -05:00
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2012-12-10 14:05:57 -05:00
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2023-03-24 18:01:13 +00:00
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2023-03-24 18:01:14 +00:00
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2012-12-10 14:05:57 -05:00
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2021-08-16 11:57:04 +02:00
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2018-07-10 01:07:43 -04:00
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2012-12-10 14:05:57 -05:00
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2023-03-24 18:01:13 +00:00
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2012-12-10 14:05:57 -05:00
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2023-03-24 18:01:13 +00:00
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2014-01-06 14:03:23 -05:00
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2012-12-10 14:05:57 -05:00
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2012-12-10 14:05:59 -05:00
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2015-04-02 16:42:43 -04:00
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2012-12-10 14:05:59 -05:00
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2015-05-18 13:14:47 -04:00
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2016-01-08 16:00:31 -05:00
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2012-12-10 14:05:59 -05:00
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2015-05-18 13:14:47 -04:00
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2012-12-10 14:05:59 -05:00
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2014-05-12 22:06:43 -04:00
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2021-08-16 11:57:04 +02:00
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2012-12-10 14:05:59 -05:00
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2021-03-19 07:34:13 +00:00
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2012-12-10 14:05:59 -05:00
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2023-10-04 14:52:20 -04:00
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2012-12-10 14:05:59 -05:00
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2018-01-09 08:21:39 -05:00
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2012-12-10 14:05:59 -05:00
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2022-04-01 01:13:21 -07:00
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2012-12-10 14:05:59 -05:00
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2022-04-01 01:13:21 -07:00
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2012-12-10 14:05:59 -05:00
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2021-03-19 07:34:13 +00:00
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2012-12-10 14:05:59 -05:00
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2022-01-17 17:41:47 +05:30
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2012-12-10 14:05:59 -05:00
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2022-04-01 01:13:21 -07:00
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2012-12-10 14:05:59 -05:00
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2014-10-13 03:36:16 -04:00
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2012-12-10 14:05:59 -05:00
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2019-06-21 16:31:47 -04:00
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2012-12-10 14:05:59 -05:00
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2023-05-06 21:04:01 -04:00
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2019-06-21 15:49:26 -04:00
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2012-12-10 14:05:59 -05:00
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2017-03-15 14:52:02 -04:00
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2012-12-10 14:05:59 -05:00
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2017-03-15 14:52:02 -04:00
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2012-12-10 14:05:59 -05:00
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2014-07-28 13:06:26 -04:00
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2012-12-10 14:05:59 -05:00
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2013-01-12 16:19:36 -05:00
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2012-12-10 14:05:59 -05:00
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2021-08-16 11:57:04 +02:00
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2012-12-10 14:05:59 -05:00
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2023-05-06 21:04:01 -04:00
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2012-12-10 14:05:59 -05:00
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2015-05-18 13:14:47 -04:00
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2016-01-08 16:00:31 -05:00
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2012-12-10 14:05:59 -05:00
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|
2020-04-26 18:34:37 -07:00
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2012-12-10 14:05:59 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:05:59 -05:00
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2016-01-08 16:00:31 -05:00
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2012-12-10 14:05:59 -05:00
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2016-01-08 16:00:31 -05:00
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2015-05-18 13:14:47 -04:00
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2012-12-10 14:05:59 -05:00
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2017-01-11 21:50:46 -05:00
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2020-04-26 18:34:37 -07:00
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2012-12-10 14:05:59 -05:00
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2013-04-19 17:53:09 -04:00
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2019-06-21 21:57:00 -04:00
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2013-04-19 17:53:09 -04:00
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2016-07-10 14:01:03 -04:00
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2013-04-19 17:53:09 -04:00
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2021-03-19 07:34:13 +00:00
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2013-04-19 17:53:09 -04:00
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2021-03-19 07:34:13 +00:00
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2013-04-19 17:53:09 -04:00
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2021-03-19 07:34:13 +00:00
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2013-04-19 17:53:09 -04:00
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2015-04-12 00:56:26 -04:00
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2013-04-19 17:53:09 -04:00
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2019-08-12 14:29:38 -04:00
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2013-04-19 17:53:09 -04:00
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2013-04-19 17:55:33 -04:00
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2013-05-17 16:08:53 -04:00
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2012-12-10 14:05:59 -05:00
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2013-05-17 16:08:53 -04:00
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2012-12-10 14:05:59 -05:00
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2013-05-17 16:08:53 -04:00
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2012-12-10 14:05:59 -05:00
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2013-04-19 17:55:33 -04:00
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2012-12-10 14:05:59 -05:00
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2013-10-30 08:07:20 -04:00
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2012-12-10 14:05:59 -05:00
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2013-05-17 16:08:53 -04:00
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2013-04-19 17:55:33 -04:00
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2021-03-19 07:34:13 +00:00
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2013-04-19 17:55:33 -04:00
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2012-12-10 14:05:59 -05:00
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2013-05-17 16:08:53 -04:00
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2018-02-01 08:15:25 -05:00
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2013-05-17 16:08:53 -04:00
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2013-04-19 17:55:33 -04:00
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2013-05-17 16:08:53 -04:00
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2021-03-19 07:34:13 +00:00
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2013-05-17 16:08:53 -04:00
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2018-01-09 08:21:39 -05:00
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2013-05-17 16:08:53 -04:00
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2012-12-10 14:05:59 -05:00
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2013-05-17 16:08:53 -04:00
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2012-12-10 14:05:59 -05:00
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2013-05-17 16:08:53 -04:00
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2012-12-10 14:05:59 -05:00
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2013-05-17 16:08:53 -04:00
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2012-12-10 14:05:59 -05:00
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2013-05-17 16:08:53 -04:00
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2012-12-10 14:05:59 -05:00
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2022-06-30 17:01:00 +08:00
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2012-12-10 14:06:01 -05:00
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2012-12-10 14:05:59 -05:00
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2012-12-10 14:06:00 -05:00
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2015-05-18 13:14:47 -04:00
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2012-12-10 14:06:00 -05:00
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2015-05-18 13:14:47 -04:00
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2017-05-24 18:10:49 -04:00
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2012-12-10 14:06:00 -05:00
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2015-05-18 13:14:47 -04:00
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2017-05-24 18:10:49 -04:00
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2012-12-10 14:06:00 -05:00
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2012-12-10 14:06:00 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:06:00 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:06:00 -05:00
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2014-05-12 22:06:43 -04:00
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|
2021-08-16 11:57:04 +02:00
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2012-12-10 14:06:00 -05:00
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2020-08-10 17:07:05 +09:00
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2012-12-10 14:06:00 -05:00
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2017-01-11 21:50:46 -05:00
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2017-01-11 22:14:49 -05:00
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2012-12-10 14:06:00 -05:00
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2012-12-10 14:06:01 -05:00
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2016-07-10 14:01:03 -04:00
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|
2012-12-10 14:06:01 -05:00
|
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|
2018-08-27 09:22:45 -04:00
|
|
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|
2012-12-10 14:06:01 -05:00
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|
ext4: fix fs corruption when tring to remove a non-empty directory with IO error
We inject IO error when rmdir non empty direcory, then got issue as follows:
step1: mkfs.ext4 -F /dev/sda
step2: mount /dev/sda test
step3: cd test
step4: mkdir -p 1/2
step5: rmdir 1
[ 110.920551] ext4_empty_dir: inject fault
[ 110.921926] EXT4-fs warning (device sda): ext4_rmdir:3113: inode #12:
comm rmdir: empty directory '1' has too many links (3)
step6: cd ..
step7: umount test
step8: fsck.ext4 -f /dev/sda
e2fsck 1.42.9 (28-Dec-2013)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Entry '..' in .../??? (13) has deleted/unused inode 12. Clear<y>? yes
Pass 3: Checking directory connectivity
Unconnected directory inode 13 (...)
Connect to /lost+found<y>? yes
Pass 4: Checking reference counts
Inode 13 ref count is 3, should be 2. Fix<y>? yes
Pass 5: Checking group summary information
/dev/sda: ***** FILE SYSTEM WAS MODIFIED *****
/dev/sda: 12/131072 files (0.0% non-contiguous), 26157/524288 blocks
ext4_rmdir
if (!ext4_empty_dir(inode))
goto end_rmdir;
ext4_empty_dir
bh = ext4_read_dirblock(inode, 0, DIRENT_HTREE);
if (IS_ERR(bh))
return true;
Now if read directory block failed, 'ext4_empty_dir' will return true, assume
directory is empty. Obviously, it will lead to above issue.
To solve this issue, if read directory block failed 'ext4_empty_dir' just
return false. To avoid making things worse when file system is already
corrupted, 'ext4_empty_dir' also return false.
Signed-off-by: Ye Bin <yebin10@huawei.com>
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20220228024815.3952506-1-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2022-02-28 10:48:15 +08:00
|
|
|
|
2012-12-10 14:06:01 -05:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2020-03-28 19:33:43 -04:00
|
|
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|
|
|
|
|
|
|
|
|
|
ext4: fix fs corruption when tring to remove a non-empty directory with IO error
We inject IO error when rmdir non empty direcory, then got issue as follows:
step1: mkfs.ext4 -F /dev/sda
step2: mount /dev/sda test
step3: cd test
step4: mkdir -p 1/2
step5: rmdir 1
[ 110.920551] ext4_empty_dir: inject fault
[ 110.921926] EXT4-fs warning (device sda): ext4_rmdir:3113: inode #12:
comm rmdir: empty directory '1' has too many links (3)
step6: cd ..
step7: umount test
step8: fsck.ext4 -f /dev/sda
e2fsck 1.42.9 (28-Dec-2013)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Entry '..' in .../??? (13) has deleted/unused inode 12. Clear<y>? yes
Pass 3: Checking directory connectivity
Unconnected directory inode 13 (...)
Connect to /lost+found<y>? yes
Pass 4: Checking reference counts
Inode 13 ref count is 3, should be 2. Fix<y>? yes
Pass 5: Checking group summary information
/dev/sda: ***** FILE SYSTEM WAS MODIFIED *****
/dev/sda: 12/131072 files (0.0% non-contiguous), 26157/524288 blocks
ext4_rmdir
if (!ext4_empty_dir(inode))
goto end_rmdir;
ext4_empty_dir
bh = ext4_read_dirblock(inode, 0, DIRENT_HTREE);
if (IS_ERR(bh))
return true;
Now if read directory block failed, 'ext4_empty_dir' will return true, assume
directory is empty. Obviously, it will lead to above issue.
To solve this issue, if read directory block failed 'ext4_empty_dir' just
return false. To avoid making things worse when file system is already
corrupted, 'ext4_empty_dir' also return false.
Signed-off-by: Ye Bin <yebin10@huawei.com>
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20220228024815.3952506-1-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2022-02-28 10:48:15 +08:00
|
|
|
|
2012-12-10 14:06:01 -05:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ext4: fix fs corruption when tring to remove a non-empty directory with IO error
We inject IO error when rmdir non empty direcory, then got issue as follows:
step1: mkfs.ext4 -F /dev/sda
step2: mount /dev/sda test
step3: cd test
step4: mkdir -p 1/2
step5: rmdir 1
[ 110.920551] ext4_empty_dir: inject fault
[ 110.921926] EXT4-fs warning (device sda): ext4_rmdir:3113: inode #12:
comm rmdir: empty directory '1' has too many links (3)
step6: cd ..
step7: umount test
step8: fsck.ext4 -f /dev/sda
e2fsck 1.42.9 (28-Dec-2013)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Entry '..' in .../??? (13) has deleted/unused inode 12. Clear<y>? yes
Pass 3: Checking directory connectivity
Unconnected directory inode 13 (...)
Connect to /lost+found<y>? yes
Pass 4: Checking reference counts
Inode 13 ref count is 3, should be 2. Fix<y>? yes
Pass 5: Checking group summary information
/dev/sda: ***** FILE SYSTEM WAS MODIFIED *****
/dev/sda: 12/131072 files (0.0% non-contiguous), 26157/524288 blocks
ext4_rmdir
if (!ext4_empty_dir(inode))
goto end_rmdir;
ext4_empty_dir
bh = ext4_read_dirblock(inode, 0, DIRENT_HTREE);
if (IS_ERR(bh))
return true;
Now if read directory block failed, 'ext4_empty_dir' will return true, assume
directory is empty. Obviously, it will lead to above issue.
To solve this issue, if read directory block failed 'ext4_empty_dir' just
return false. To avoid making things worse when file system is already
corrupted, 'ext4_empty_dir' also return false.
Signed-off-by: Ye Bin <yebin10@huawei.com>
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20220228024815.3952506-1-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2022-02-28 10:48:15 +08:00
|
|
|
|
2012-12-10 14:06:01 -05:00
|
|
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|
|
|
2018-08-27 09:22:45 -04:00
|
|
|
|
2012-12-10 14:06:01 -05:00
|
|
|
|
2018-08-27 09:22:45 -04:00
|
|
|
|
2012-12-10 14:06:01 -05:00
|
|
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|
|
2016-04-27 01:11:21 -04:00
|
|
|
|
2012-12-10 14:06:01 -05:00
|
|
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|
|
ext4: fix fs corruption when tring to remove a non-empty directory with IO error
We inject IO error when rmdir non empty direcory, then got issue as follows:
step1: mkfs.ext4 -F /dev/sda
step2: mount /dev/sda test
step3: cd test
step4: mkdir -p 1/2
step5: rmdir 1
[ 110.920551] ext4_empty_dir: inject fault
[ 110.921926] EXT4-fs warning (device sda): ext4_rmdir:3113: inode #12:
comm rmdir: empty directory '1' has too many links (3)
step6: cd ..
step7: umount test
step8: fsck.ext4 -f /dev/sda
e2fsck 1.42.9 (28-Dec-2013)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Entry '..' in .../??? (13) has deleted/unused inode 12. Clear<y>? yes
Pass 3: Checking directory connectivity
Unconnected directory inode 13 (...)
Connect to /lost+found<y>? yes
Pass 4: Checking reference counts
Inode 13 ref count is 3, should be 2. Fix<y>? yes
Pass 5: Checking group summary information
/dev/sda: ***** FILE SYSTEM WAS MODIFIED *****
/dev/sda: 12/131072 files (0.0% non-contiguous), 26157/524288 blocks
ext4_rmdir
if (!ext4_empty_dir(inode))
goto end_rmdir;
ext4_empty_dir
bh = ext4_read_dirblock(inode, 0, DIRENT_HTREE);
if (IS_ERR(bh))
return true;
Now if read directory block failed, 'ext4_empty_dir' will return true, assume
directory is empty. Obviously, it will lead to above issue.
To solve this issue, if read directory block failed 'ext4_empty_dir' just
return false. To avoid making things worse when file system is already
corrupted, 'ext4_empty_dir' also return false.
Signed-off-by: Ye Bin <yebin10@huawei.com>
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20220228024815.3952506-1-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2022-02-28 10:48:15 +08:00
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2012-12-10 14:06:01 -05:00
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2012-12-10 14:04:46 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:04:46 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:04:46 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:04:46 -05:00
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2012-12-10 14:06:02 -05:00
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2017-10-01 17:57:54 -04:00
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2018-06-01 09:03:06 -07:00
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2017-10-01 17:57:54 -04:00
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2017-01-22 19:35:49 -05:00
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2012-12-10 14:06:02 -05:00
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2017-01-22 19:35:49 -05:00
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2012-12-10 14:06:02 -05:00
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2013-02-08 21:59:22 -05:00
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2012-12-10 14:06:02 -05:00
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2017-01-22 19:35:49 -05:00
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2012-12-10 14:06:02 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:06:02 -05:00
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2020-11-03 10:29:02 +08:00
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2012-12-10 14:06:02 -05:00
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2017-01-22 19:35:49 -05:00
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2012-12-10 14:06:02 -05:00
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2017-01-22 19:35:49 -05:00
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2012-12-10 14:06:02 -05:00
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2017-01-22 19:35:49 -05:00
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2012-12-10 14:06:02 -05:00
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2021-08-19 10:49:26 -04:00
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2023-04-24 11:38:43 +08:00
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2021-08-19 10:49:26 -04:00
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2012-12-10 14:06:02 -05:00
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2017-01-22 19:35:49 -05:00
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2012-12-10 14:06:02 -05:00
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2017-01-22 19:35:49 -05:00
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2012-12-10 14:06:02 -05:00
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2017-01-22 19:35:49 -05:00
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2012-12-10 14:06:02 -05:00
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2017-01-22 19:35:49 -05:00
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2012-12-10 14:06:02 -05:00
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2021-06-03 07:33:02 +05:30
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2017-01-22 19:35:49 -05:00
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2012-12-10 14:06:02 -05:00
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2014-01-07 12:58:19 -05:00
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2012-12-10 14:06:02 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:06:02 -05:00
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2017-01-22 19:35:49 -05:00
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2023-10-04 14:52:20 -04:00
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2017-01-22 19:35:49 -05:00
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2012-12-10 14:06:02 -05:00
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2017-01-22 19:35:49 -05:00
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2012-12-10 14:06:02 -05:00
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2012-12-10 14:06:03 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:06:03 -05:00
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2022-05-16 20:26:34 +08:00
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2012-12-10 14:06:03 -05:00
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2013-02-08 21:59:22 -05:00
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2012-12-10 14:06:03 -05:00
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2017-01-11 21:50:46 -05:00
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2012-12-10 14:06:03 -05:00
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