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authorDave Chinner <dchinner@redhat.com>2010-04-29 09:55:50 +1000
committerAlex Elder <aelder@sgi.com>2010-04-29 16:22:13 -0500
commit9bf729c0af67897ea8498ce17c29b0683f7f2028 (patch)
tree9e6350fd9da5aef0b53ddeddd82f618ae16bf931 /fs/xfs/xfs_mount.h
parent79dba2eaa771c3173957eccfd288e0e0d12e4d3f (diff)
downloadlinux-9bf729c0af67897ea8498ce17c29b0683f7f2028.tar.bz2
xfs: add a shrinker to background inode reclaim
On low memory boxes or those with highmem, kernel can OOM before the background reclaims inodes via xfssyncd. Add a shrinker to run inode reclaim so that it inode reclaim is expedited when memory is low. This is more complex than it needs to be because the VM folk don't want a context added to the shrinker infrastructure. Hence we need to add a global list of XFS mount structures so the shrinker can traverse them. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_mount.h')
-rw-r--r--fs/xfs/xfs_mount.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 4fa0bc7b983e..9ff48a16a7ee 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -259,6 +259,7 @@ typedef struct xfs_mount {
wait_queue_head_t m_wait_single_sync_task;
__int64_t m_update_flags; /* sb flags we need to update
on the next remount,rw */
+ struct list_head m_mplist; /* inode shrinker mount list */
} xfs_mount_t;
/*