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authorDave Chinner <dchinner@redhat.com>2010-12-02 16:31:13 +1100
committerDave Chinner <david@fromorbit.com>2010-12-02 16:31:13 +1100
commit821eb21d97a8b686649c08b7284d0b9f34d0e138 (patch)
treec1123769b0b12cd8b7a816786881ce2d147d88e5
parent430cbeb86fdcbbdabea7d4aa65307de8de425350 (diff)
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xfs: connect up buffer reclaim priority hooks
Now that the buffer reclaim infrastructure can handle different reclaim priorities for different types of buffers, reconnect the hooks in the XFS code that has been sitting dormant since it was ported to Linux. This should finally give use reclaim prioritisation that is on a par with the functionality that Irix provided XFS 15 years ago. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
-rw-r--r--fs/xfs/linux-2.6/xfs_buf.h10
-rw-r--r--fs/xfs/xfs_btree.c9
-rw-r--r--fs/xfs/xfs_inode.c2
-rw-r--r--fs/xfs/xfs_trans.h2
4 files changed, 14 insertions, 9 deletions
diff --git a/fs/xfs/linux-2.6/xfs_buf.h b/fs/xfs/linux-2.6/xfs_buf.h
index 4601eabd0da..a76c2428faf 100644
--- a/fs/xfs/linux-2.6/xfs_buf.h
+++ b/fs/xfs/linux-2.6/xfs_buf.h
@@ -336,9 +336,15 @@ void xfs_buf_stale(struct xfs_buf *bp);
#define XFS_BUF_SIZE(bp) ((bp)->b_buffer_length)
#define XFS_BUF_SET_SIZE(bp, cnt) ((bp)->b_buffer_length = (cnt))
-#define XFS_BUF_SET_VTYPE_REF(bp, type, ref) do { } while (0)
+static inline void
+xfs_buf_set_ref(
+ struct xfs_buf *bp,
+ int lru_ref)
+{
+ atomic_set(&bp->b_lru_ref, lru_ref);
+}
+#define XFS_BUF_SET_VTYPE_REF(bp, type, ref) xfs_buf_set_ref(bp, ref)
#define XFS_BUF_SET_VTYPE(bp, type) do { } while (0)
-#define XFS_BUF_SET_REF(bp, ref) do { } while (0)
#define XFS_BUF_ISPINNED(bp) atomic_read(&((bp)->b_pin_count))
diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c
index 04f9cca8da7..2f9e97c128a 100644
--- a/fs/xfs/xfs_btree.c
+++ b/fs/xfs/xfs_btree.c
@@ -634,9 +634,8 @@ xfs_btree_read_bufl(
return error;
}
ASSERT(!bp || !XFS_BUF_GETERROR(bp));
- if (bp != NULL) {
+ if (bp)
XFS_BUF_SET_VTYPE_REF(bp, B_FS_MAP, refval);
- }
*bpp = bp;
return 0;
}
@@ -944,13 +943,13 @@ xfs_btree_set_refs(
switch (cur->bc_btnum) {
case XFS_BTNUM_BNO:
case XFS_BTNUM_CNT:
- XFS_BUF_SET_VTYPE_REF(*bpp, B_FS_MAP, XFS_ALLOC_BTREE_REF);
+ XFS_BUF_SET_VTYPE_REF(bp, B_FS_MAP, XFS_ALLOC_BTREE_REF);
break;
case XFS_BTNUM_INO:
- XFS_BUF_SET_VTYPE_REF(*bpp, B_FS_INOMAP, XFS_INO_BTREE_REF);
+ XFS_BUF_SET_VTYPE_REF(bp, B_FS_INOMAP, XFS_INO_BTREE_REF);
break;
case XFS_BTNUM_BMAP:
- XFS_BUF_SET_VTYPE_REF(*bpp, B_FS_MAP, XFS_BMAP_BTREE_REF);
+ XFS_BUF_SET_VTYPE_REF(bp, B_FS_MAP, XFS_BMAP_BTREE_REF);
break;
default:
ASSERT(0);
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 43ffd907910..be7cf625421 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -887,7 +887,7 @@ xfs_iread(
* around for a while. This helps to keep recently accessed
* meta-data in-core longer.
*/
- XFS_BUF_SET_REF(bp, XFS_INO_REF);
+ xfs_buf_set_ref(bp, XFS_INO_REF);
/*
* Use xfs_trans_brelse() to release the buffer containing the
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index 246286b77a8..c2042b736b8 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -294,8 +294,8 @@ struct xfs_log_item_desc {
#define XFS_ALLOC_BTREE_REF 2
#define XFS_BMAP_BTREE_REF 2
#define XFS_DIR_BTREE_REF 2
+#define XFS_INO_REF 2
#define XFS_ATTR_BTREE_REF 1
-#define XFS_INO_REF 1
#define XFS_DQUOT_REF 1
#ifdef __KERNEL__