[PATCH 037/102] xfs: do exact log space wakeups in xlog_ungrant_log_space

Dave Chinner
2012-08-23T05:03:21Z

From: Christoph Hellwig <hch@infradead.org>

Upstream commit: 3af1de753b3caf9fa3762b4b1b85d833c121847e

The only reason that xfs_log_space_wake had to do opportunistic wakeups
was that the old xfs_log_move_tail calling convention didn't allow for
exact wakeups when not updating the log tail LSN. Since this issue has
been fixed we can do exact wakeups now.

Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
fs/xfs/xfs_log.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 6907c82..ccb6199 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -2796,7 +2796,7 @@ xlog_ungrant_log_space(xlog_t *log,

trace_xfs_log_ungrant_exit(log, ticket);

- xfs_log_space_wake(log->l_mp, true);
+ xfs_log_space_wake(log->l_mp, false);
}

/*