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authorDave Chinner <dgc@sgi.com>2009-03-16 10:29:46 +0300
committerChristoph Hellwig <hch@brick.lst.de>2009-03-16 10:29:46 +0300
commit6cc87645e2a3c28d857b074e90bf88bfcd117afa (patch)
treea93770aa88f1ecde7af8954931e19cef2015bf53 /fs/xfs/xfs_alloc.h
parentcb4c8cc1e92bc68c952e9a81a9fb9736bd8150de (diff)
downloadlinux-6cc87645e2a3c28d857b074e90bf88bfcd117afa.tar.xz
xfs: factor out code to find the longest free extent in the AG
Signed-off-by: Dave Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_alloc.h')
-rw-r--r--fs/xfs/xfs_alloc.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/xfs/xfs_alloc.h b/fs/xfs/xfs_alloc.h
index 588172796f7b..e704caee10df 100644
--- a/fs/xfs/xfs_alloc.h
+++ b/fs/xfs/xfs_alloc.h
@@ -100,6 +100,12 @@ typedef struct xfs_alloc_arg {
#define XFS_ALLOC_USERDATA 1 /* allocation is for user data*/
#define XFS_ALLOC_INITIAL_USER_DATA 2 /* special case start of file */
+/*
+ * Find the length of the longest extent in an AG.
+ */
+xfs_extlen_t
+xfs_alloc_longest_free_extent(struct xfs_mount *mp,
+ struct xfs_perag *pag);
#ifdef __KERNEL__