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linux/drivers/md/persistent-data
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Mikulas Patocka 8d604da7c7 dm persistent data: fix memory allocation failure 
commit faada2174c upstream.

kmalloc is unreliable when allocating more than 8 pages of memory. It may
fail when there is plenty of free memory but the memory is fragmented.
Zdenek Kabelac observed such failure in his tests.

This commit changes kmalloc to kvmalloc - kvmalloc will fall back to
vmalloc if the large allocation fails.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reported-by: Zdenek Kabelac <zkabelac@redhat.com>
Reviewed-by: Mike Snitzer <snitzer@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2024-09-04 13:23:16 +02:00
..
dm-array.c dm space maps: improve performance with inc/dec on ranges of blocks 2021-06-04 12:07:22 -04:00
dm-array.h dm persistent data: add cursor skip functions to the cursor APIs 2017-02-16 13:12:50 -05:00
dm-bitset.c dm persistent data: add cursor skip functions to the cursor APIs 2017-02-16 13:12:50 -05:00
dm-bitset.h dm persistent data: add cursor skip functions to the cursor APIs 2017-02-16 13:12:50 -05:00
dm-block-manager.c dm thin metadata: Fix use-after-free in dm_bm_set_read_only 2020-09-02 13:38:40 -04:00
dm-block-manager.h dm block manager: remove an unused argument from dm_block_manager_create() 2017-04-27 17:08:41 -04:00
dm-btree-internal.h dm space maps: improve performance with inc/dec on ranges of blocks 2021-06-04 12:07:22 -04:00
dm-btree-remove.c dm btree remove: fix use after free in rebalance_children() 2021-12-22 09:32:36 +01:00
dm-btree-spine.c dm space maps: improve performance with inc/dec on ranges of blocks 2021-06-04 12:07:22 -04:00
dm-btree.c dm btree: add a defensive bounds check to insert_at() 2022-01-27 11:04:52 +01:00
dm-btree.h dm space maps: improve performance with inc/dec on ranges of blocks 2021-06-04 12:07:22 -04:00
dm-persistent-data-internal.h dm: add persistent data library 2011-10-31 20:19:11 +00:00
dm-space-map-common.c dm space map common: add bounds check to sm_ll_lookup_bitmap() 2022-01-27 11:04:53 +01:00
dm-space-map-common.h dm space map disk: cache a small number of index entries 2021-06-04 12:07:23 -04:00
dm-space-map-disk.c dm space maps: improve performance with inc/dec on ranges of blocks 2021-06-04 12:07:22 -04:00
dm-space-map-disk.h dm: add persistent data library 2011-10-31 20:19:11 +00:00
dm-space-map-metadata.c dm persistent data: fix memory allocation failure 2024-09-04 13:23:16 +02:00
dm-space-map-metadata.h dm thin: allow metadata space larger than supported to go unused 2014-02-27 11:49:08 -05:00
dm-space-map.h dm space maps: improve performance with inc/dec on ranges of blocks 2021-06-04 12:07:22 -04:00
dm-transaction-manager.c dm space maps: improve performance with inc/dec on ranges of blocks 2021-06-04 12:07:22 -04:00
dm-transaction-manager.h dm space maps: improve performance with inc/dec on ranges of blocks 2021-06-04 12:07:22 -04:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00