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authorChristoph Hellwig <hch@infradead.org>2012-02-29 09:53:48 +0000
committerBen Myers <bpm@sgi.com>2012-03-05 11:07:42 -0600
commitaa6bf01d391935a8929333bc2e243084ea0c58db (patch)
tree686c204328f00ae91466267a9f1e85c3c8d767cb /fs/xfs/xfs_mount.h
parent4b217ed9e30f94b6e8e5e262020ef0ceab6113af (diff)
downloadlinux-aa6bf01d391935a8929333bc2e243084ea0c58db.tar.bz2
xfs: use per-filesystem I/O completion workqueues
The new concurrency managed workqueues are cheap enough that we can create per-filesystem instead of global workqueues. This allows us to remove the trylock or defer scheme on the ilock, which is not helpful once we have outstanding log reservations until finishing a size update. Also allow the default concurrency on this workqueues so that I/O completions blocking on the ilock for one inode do not block process for another inode. Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_mount.h')
-rw-r--r--fs/xfs/xfs_mount.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index c082e44dad2d..9eba73887829 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -211,6 +211,9 @@ typedef struct xfs_mount {
struct shrinker m_inode_shrink; /* inode reclaim shrinker */
int64_t m_low_space[XFS_LOWSP_MAX];
/* low free space thresholds */
+
+ struct workqueue_struct *m_data_workqueue;
+ struct workqueue_struct *m_unwritten_workqueue;
} xfs_mount_t;
/*