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| author | Liu Bo <bo.li.liu@oracle.com> | 2016-11-30 16:20:25 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-06 18:59:47 -0700 |
| commit | 6731212836059c7ac3575e21c499380e795516a9 (patch) | |
| tree | 526a24225b8c7dfd0570ea3f0c359f1619b192e1 /fs/select.c | |
| parent | 78418b86733462c913aea82e081594b1005751ba (diff) | |
Btrfs: fix lockdep warning about log_mutex
[ Upstream commit 781feef7e6befafd4d9787d1f7ada1f9ccd504e4 ]
While checking INODE_REF/INODE_EXTREF for a corner case, we may acquire a
different inode's log_mutex with holding the current inode's log_mutex, and
lockdep has complained this with a possilble deadlock warning.
Fix this by using mutex_lock_nested() when processing the other inode's
log_mutex.
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/select.c')
0 files changed, 0 insertions, 0 deletions