btrfs: convert count_max_extents() to use fs_info->max_extent_size

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[ Upstream commit 7d7672bc5d ]

If count_max_extents() uses BTRFS_MAX_EXTENT_SIZE to calculate the number
of extents needed, btrfs release the metadata reservation too much on its
way to write out the data.

Now that BTRFS_MAX_EXTENT_SIZE is replaced with fs_info->max_extent_size,
convert count_max_extents() to use it instead, and fix the calculation of
the metadata reservation.

CC: stable@vger.kernel.org # 5.12+
Fixes: d8e3fb106f ("btrfs: zoned: use ZONE_APPEND write for zoned mode")
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Naohiro Aota 2022-07-09 08:18:41 +09:00 • committed by Greg Kroah-Hartman

parent 096e8eb963

commit d798edf599

3 changed files with 24 additions and 19 deletions

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21

fs/btrfs/ctree.h

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6

fs/btrfs/delalloc-space.c

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16

fs/btrfs/inode.c

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