4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Josef Bacik <jbacik@xxxxxx>
commit c79b4713304f812d3d6c95826fc3e5fc2c0b0c14 upstream.
The fd we pass in may not be on a btrfs file system, so don't try to do
BTRFS_I() on it. Thanks,
Signed-off-by: Josef Bacik <jbacik@xxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Cc: Jeff Mahoney <jeffm@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/btrfs/ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1648,7 +1648,7 @@ static noinline int btrfs_ioctl_snap_cre
src_inode = file_inode(src.file);
if (src_inode->i_sb != file_inode(file)->i_sb) {
- btrfs_info(BTRFS_I(src_inode)->root->fs_info,
+ btrfs_info(BTRFS_I(file_inode(file))->root->fs_info,
"Snapshot src from another FS");
ret = -EXDEV;
} else if (!inode_owner_or_capable(src_inode)) {
--
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