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Btrfs: release path before starting transaction in can_nocow_extent

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We can't be holding tree locks while we try to start a transaction, we will
deadlock.  Thanks,

Reported-by: Sage Weil <sage@inktank.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
Josef Bacik 2013-10-18 12:10:36 -04:00 committed by Chris Mason
parent c00869f1ae
commit 1bda19eb73
1 changed files with 1 additions and 0 deletions
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fs/btrfs/inode.c
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@ -6437,6 +6437,7 @@ noinline int can_nocow_extent(struct inode *inode, u64 offset, u64 *len,
if (btrfs_extent_readonly(root, disk_bytenr))
goto out;
btrfs_release_path(path);
/*
* look for other files referencing this extent, if we