[SRU][N][PATCH 0/1] block: Fix page refcounts for unaligned buffers in __bio_release_pages()

[Thibault Ferrante]

[Impact]
Buffers not starting at the beginning of a page may not be released
in case of hugepage usage.

[Fix]
Fix was merged upstream in 6.9-rc1:

38b43539d64 block: Fix page refcounts for unaligned buffers in __bio_release_pages()

It's a clean cherry-pick.

[Test Plan]
1. Create a guest which is backed by hugepages.
2. Destroy the guest.
3. execute "free -h" or "cat /proc/meminfo" to see that Hugepage memory was freed.

[Where problems could occur]
Regression when managing hugepages might occurs.

Tony Battersby (1):
  block: Fix page refcounts for unaligned buffers in
    __bio_release_pages()

 block/bio.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

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2.43.0