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| author | Darrick J. Wong <darrick.wong@oracle.com> | 2018-01-26 15:27:33 -0800 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-01-29 07:27:23 -0800 |
| commit | 7c2d238ac6c435c07780a54719760da2beb46a43 (patch) | |
| tree | 5ab9c30472ad7bff9ec2ab665ab16ee4f099e76d /fs/xfs/xfs_reflink.c | |
| parent | 1364b1d4b5df31a05b6a3e6fdeb5371dbd4bd8ac (diff) | |
| download | blackbird-obmc-linux-7c2d238ac6c435c07780a54719760da2beb46a43.tar.gz blackbird-obmc-linux-7c2d238ac6c435c07780a54719760da2beb46a43.zip | |
xfs: allow xfs_lock_two_inodes to take different EXCL/SHARED modes
Refactor xfs_lock_two_inodes to take separate locking modes for each
inode. Specifically, this enables us to take a SHARED lock on one inode
and an EXCL lock on the other. The lock class (MMAPLOCK/ILOCK) must be
the same for each inode.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_reflink.c')
| -rw-r--r-- | fs/xfs/xfs_reflink.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c index bac464f0bc59..bcc58c24287c 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -944,7 +944,7 @@ xfs_reflink_set_inode_flag( if (src->i_ino == dest->i_ino) xfs_ilock(src, XFS_ILOCK_EXCL); else - xfs_lock_two_inodes(src, dest, XFS_ILOCK_EXCL); + xfs_lock_two_inodes(src, XFS_ILOCK_EXCL, dest, XFS_ILOCK_EXCL); if (!xfs_is_reflink_inode(src)) { trace_xfs_reflink_set_inode_flag(src); @@ -1324,7 +1324,8 @@ xfs_reflink_remap_range( if (same_inode) xfs_ilock(src, XFS_MMAPLOCK_EXCL); else - xfs_lock_two_inodes(src, dest, XFS_MMAPLOCK_EXCL); + xfs_lock_two_inodes(src, XFS_MMAPLOCK_EXCL, dest, + XFS_MMAPLOCK_EXCL); /* Check file eligibility and prepare for block sharing. */ ret = -EINVAL; |
