btrfs: move btrfs_truncate_block out of trans handle

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Since we do a delalloc reserve in btrfs_truncate_block we can deadlock
with freeze.  If somebody else is trying to allocate metadata for this
inode and it gets stuck in start_delalloc_inodes because of freeze we
will deadlock.  Be safe and move this outside of a trans handle.  This
also has a side-effect of making sure that we're not leaving stale data
behind in the other_encoding or encryption case.  Not an issue now since
nobody uses it, but it would be a problem in the future.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Josef Bacik 2017-10-19 14:16:02 -04:00 • committed by David Sterba

parent ce8ea7cc6e

commit ddfae63cc8

1 changed files with 45 additions and 75 deletions

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fs/btrfs/inode.c

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