ceph: use a folio in the READ_INLINE path of ceph_read_iter()

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The inline data is read into a scratch buffer that never enters the page
cache, so allocate it with folio_alloc() instead of
__page_cache_alloc(). This drops the cpuset page spreading that
__page_cache_alloc() applies on NUMA systems, which only makes sense for
page cache pages. The temporary buffer here is better off node local.

The mismatched __free_page()/__free_pages() pair both become
folio_put(). The __ceph_do_getattr() locked page plumbing will be
converted in a later patch, so pass &folio->page for now.

Signed-off-by: Tal Zussman <tz2294@columbia.edu>
Reviewed-by: Alex Markuze <amarkuze@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

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Tal Zussman 2026-09-02 12:35:09 -04:00 • committed by Ilya Dryomov

parent 303227111a

commit 6068b68c82

1 changed files with 10 additions and 9 deletions

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fs/ceph/file.c

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