BMC/Intel-BMC/linux.git/fs/ocfs2/locks.c, branch dev

ocfs2: flock: drop cross-node lock when failed locally

2014-04-03T23:20:56+00:00

ocfs2_do_flock() calls ocfs2_file_lock() to get the cross-node clock and then call flock_lock_file_wait() to compete with local processes. In case flock_lock_file_wait() failed, say -ENOMEM, clean up work is not done. This patch adds the cleanup --drop the cross-node lock which was just granted. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Wengang Wang Cc: Joel Becker Reviewed-by: Mark Fasheh Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

ocfs2: remove INODE from unused files.

2011-02-21T03:18:23+00:00

As there are no such debug information in fs/ocfs2/ioctl.c, fs/ocfs2/locks.c and fs/ocfs2/sysfile.c, ML_INODE are also removed. Signed-off-by: Tao Ma

[PATCH] Skip check for mandatory locks when unlocking

2010-03-17T19:07:16+00:00

ocfs2_lock() will skip locks on file which has mode set to 02666. This is a problem in cases where the mode of the file is changed after a process has obtained a lock on the file. ocfs2_lock() should skip the check for mandatory locks when unlocking a file. Signed-off-by: Sachin Prabhu Signed-off-by: Joel Becker

ocfs2: POSIX file locks support

2008-10-13T20:57:57+00:00

This is actually pretty easy since fs/dlm already handles the bulk of the work. The Ocfs2 userspace cluster stack module already uses fs/dlm as the underlying lock manager, so I only had to add the right calls. Cluster-aware POSIX locks ("plocks") can be turned off by the same means at UNIX locks - mount with 'noflocks', or create a local-only Ocfs2 volume. Internally, the file system uses two sets of file_operations, depending on whether cluster aware plocks is required. This turns out to be easier than implementing local-only versions of ->lock. Signed-off-by: Mark Fasheh

[PATCH 2/2] ocfs2: cluster aware flock()

2008-01-25T23:05:43+00:00

Hook up ocfs2_flock(), using the new flock lock type in dlmglue.c. A new mount option, "localflocks" is added so that users can revert to old functionality as need be. Signed-off-by: Mark Fasheh