btrfs: return any hit error from extent_writepage_io()

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[ Upstream commit 2d83ed6c6c ]

Since the support of bs < ps support, extent_writepage_io() will submit
multiple blocks inside the folio.

But if we hit error submitting one sector, but the next sector can still
be submitted successfully, the function extent_writepage_io() will still
return 0.

This will make btrfs to silently ignore the error without setting error
flag for the filemap.

Fix it by recording the first error hit, and always return that value.

Fixes: 8bf334beb3 ("btrfs: fix double accounting race when extent_writepage_io() failed")
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Qu Wenruo 2025-09-18 08:40:45 +09:30 • committed by Greg Kroah-Hartman

parent 44cd990ff3

commit 01e852a53c

1 changed files with 5 additions and 4 deletions

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fs/btrfs/extent_io.c

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