Btrfs: ensure deletion from pinned_chunks list is protected

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The call to remove_extent_mapping() actually deletes the extent map
from the list it's included in - fs_info->pinned_chunks - and that
list is protected by the chunk mutex. Therefore make that call
while holding the chunk mutex and remove the redundant list delete
call because it's a noop.

This fixes an overlook of the patch titled
"Btrfs: fix race between fs trimming and block group remove/allocation"
following the same obvervation from the patch titled
"Btrfs: fix unprotected deletion from pending_chunks list".

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>

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Filipe Manana 2014-12-04 15:31:01 +00:00 • committed by Chris Mason

parent 9627aeee3e

commit a1e7e16ed3

1 changed files with 5 additions and 3 deletions

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fs/btrfs/free-space-cache.c

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