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From: Dave Chinner <david@fromorbit.com>
To: xfs@oss.sgi.com
Subject: [PATCH 20/23] xfs: Add verifiers to dir2 data readahead.
Date: Fri, 12 Oct 2012 16:44:26 +1100	[thread overview]
Message-ID: <1350020669-19504-21-git-send-email-david@fromorbit.com> (raw)
In-Reply-To: <1350020669-19504-1-git-send-email-david@fromorbit.com>

From: Dave Chinner <dchinner@redhat.com>

Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
 fs/xfs/xfs_da_btree.c  |    4 ++--
 fs/xfs/xfs_da_btree.h  |    4 ++--
 fs/xfs/xfs_dir2_data.c |   13 ++++++++++++-
 fs/xfs/xfs_dir2_leaf.c |   11 +++++------
 fs/xfs/xfs_dir2_priv.h |    2 ++
 fs/xfs/xfs_file.c      |    4 +++-
 6 files changed, 26 insertions(+), 12 deletions(-)

diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index e950192..7656c14 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -2278,10 +2278,10 @@ xfs_da_reada_buf(
 	struct xfs_trans	*trans,
 	struct xfs_inode	*dp,
 	xfs_dablk_t		bno,
+	xfs_daddr_t		mappedbno,
 	int			whichfork,
 	xfs_buf_iodone_t	verifier)
 {
-	xfs_daddr_t		mappedbno = -1;
 	struct xfs_buf_map	map;
 	struct xfs_buf_map	*mapp;
 	int			nmap;
@@ -2289,7 +2289,7 @@ xfs_da_reada_buf(
 
 	mapp = &map;
 	nmap = 1;
-	error = xfs_dabuf_map(trans, dp, bno, -1, whichfork,
+	error = xfs_dabuf_map(trans, dp, bno, mappedbno, whichfork,
 				&mapp, &nmap);
 	if (error) {
 		/* mapping a hole is not an error, but we don't continue */
diff --git a/fs/xfs/xfs_da_btree.h b/fs/xfs/xfs_da_btree.h
index 2d1bec4..521b008 100644
--- a/fs/xfs/xfs_da_btree.h
+++ b/fs/xfs/xfs_da_btree.h
@@ -231,8 +231,8 @@ int	xfs_da_read_buf(struct xfs_trans *trans, struct xfs_inode *dp,
 			       struct xfs_buf **bpp, int whichfork,
 			       xfs_buf_iodone_t verifier);
 xfs_daddr_t	xfs_da_reada_buf(struct xfs_trans *trans, struct xfs_inode *dp,
-				xfs_dablk_t bno, int whichfork,
-				xfs_buf_iodone_t verifier);
+				xfs_dablk_t bno, xfs_daddr_t mapped_bno,
+				int whichfork, xfs_buf_iodone_t verifier);
 int	xfs_da_shrink_inode(xfs_da_args_t *args, xfs_dablk_t dead_blkno,
 					  struct xfs_buf *dead_buf);
 
diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c
index 43c8426..795cfdd 100644
--- a/fs/xfs/xfs_dir2_data.c
+++ b/fs/xfs/xfs_dir2_data.c
@@ -185,7 +185,7 @@ __xfs_dir2_data_check(
 	return 0;
 }
 
-static void
+void
 xfs_dir2_data_verify(
 	struct xfs_buf		*bp)
 {
@@ -217,6 +217,17 @@ xfs_dir2_data_read(
 					XFS_DATA_FORK, xfs_dir2_data_verify);
 }
 
+int
+xfs_dir2_data_readahead(
+	struct xfs_trans	*tp,
+	struct xfs_inode	*dp,
+	xfs_dablk_t		bno,
+	xfs_daddr_t		mapped_bno)
+{
+	return xfs_da_reada_buf(tp, dp, bno, mapped_bno,
+					XFS_DATA_FORK, xfs_dir2_data_verify);
+}
+
 /*
  * Given a data block and an unused entry from that block,
  * return the bestfree entry if any that corresponds to it.
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index 67cc21c..8a95547 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -972,11 +972,11 @@ xfs_dir2_leaf_readbuf(
 		 */
 		if (i > mip->ra_current &&
 		    map[mip->ra_index].br_blockcount >= mp->m_dirblkfsbs) {
-			xfs_buf_readahead(mp->m_ddev_targp,
+			xfs_dir2_data_readahead(NULL, dp,
+				map[mip->ra_index].br_startoff + mip->ra_offset,
 				XFS_FSB_TO_DADDR(mp,
 					map[mip->ra_index].br_startblock +
-							mip->ra_offset),
-				(int)BTOBB(mp->m_dirblksize), NULL);
+							mip->ra_offset));
 			mip->ra_current = i;
 		}
 
@@ -985,10 +985,9 @@ xfs_dir2_leaf_readbuf(
 		 * use our mapping, but this is a very rare case.
 		 */
 		else if (i > mip->ra_current) {
-			xfs_da_reada_buf(NULL, dp,
+			xfs_dir2_data_readahead(NULL, dp,
 					map[mip->ra_index].br_startoff +
-							mip->ra_offset,
-					XFS_DATA_FORK, NULL);
+							mip->ra_offset, -1);
 			mip->ra_current = i;
 		}
 
diff --git a/fs/xfs/xfs_dir2_priv.h b/fs/xfs/xfs_dir2_priv.h
index 1f42e81..aa06174 100644
--- a/fs/xfs/xfs_dir2_priv.h
+++ b/fs/xfs/xfs_dir2_priv.h
@@ -48,6 +48,8 @@ extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args,
 extern bool __xfs_dir2_data_check(struct xfs_inode *dp, struct xfs_buf *bp);
 extern int xfs_dir2_data_read(struct xfs_trans *tp, struct xfs_inode *dp,
 		xfs_dablk_t bno, xfs_daddr_t mapped_bno, struct xfs_buf **bpp);
+extern int xfs_dir2_data_readahead(struct xfs_trans *tp, struct xfs_inode *dp,
+		xfs_dablk_t bno, xfs_daddr_t mapped_bno);
 
 extern struct xfs_dir2_data_free *
 xfs_dir2_data_freeinsert(struct xfs_dir2_data_hdr *hdr,
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index c0dc74e..b3ff649 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -31,6 +31,8 @@
 #include "xfs_error.h"
 #include "xfs_vnodeops.h"
 #include "xfs_da_btree.h"
+#include "xfs_dir2_format.h"
+#include "xfs_dir2_priv.h"
 #include "xfs_ioctl.h"
 #include "xfs_trace.h"
 
@@ -890,7 +892,7 @@ xfs_dir_open(
 	 */
 	mode = xfs_ilock_map_shared(ip);
 	if (ip->i_d.di_nextents > 0)
-		xfs_da_reada_buf(NULL, ip, 0, XFS_DATA_FORK, NULL);
+		xfs_dir2_data_readahead(NULL, ip, 0, -1);
 	xfs_iunlock(ip, mode);
 	return 0;
 }
-- 
1.7.10

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  parent reply	other threads:[~2012-10-12  5:44 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-12  5:44 [PATCH 00/23] xfs: metadata verifiers V2 Dave Chinner
2012-10-12  5:44 ` [PATCH 01/23] xfs: growfs: don't read garbage for new secondary superblocks Dave Chinner
2012-10-12  5:44 ` [PATCH 02/23] xfs: invalidate allocbt blocks moved to the free list Dave Chinner
2012-10-12  5:44 ` [PATCH 03/23] xfs: make buffer read verication an IO completion function Dave Chinner
2012-10-12  5:44 ` [PATCH 04/23] xfs: uncached buffer reads need to return an error Dave Chinner
2012-10-12  5:44 ` [PATCH 05/23] xfs: verify superblocks as they are read from disk Dave Chinner
2012-10-12  5:44 ` [PATCH 06/23] xfs: verify AGF blocks " Dave Chinner
2012-10-12  5:44 ` [PATCH 07/23] xfs: verify AGI " Dave Chinner
2012-10-12  5:44 ` [PATCH 08/23] xfs: verify AGFL " Dave Chinner
2012-10-12  5:44 ` [PATCH 09/23] xfs: verify inode buffers " Dave Chinner
2012-10-12  5:44 ` [PATCH 10/23] xfs: verify btree blocks " Dave Chinner
2012-10-12  5:44 ` [PATCH 11/23] xfs: verify dquot " Dave Chinner
2012-10-12  5:44 ` [PATCH 12/23] xfs: add verifier callback to directorry read code Dave Chinner
2012-10-12  5:44 ` [PATCH 13/23] xfs: factor dir2 block read operations Dave Chinner
2012-10-12  5:44 ` [PATCH 14/23] xfs: verify dir2 block format buffers Dave Chinner
2012-10-12  5:44 ` [PATCH 15/23] xfs: factor dir2 free block reading Dave Chinner
2012-10-12  5:44 ` [PATCH 16/23] xfs: factor out dir2 data " Dave Chinner
2012-10-12  5:44 ` [PATCH 17/23] xfs: factor dir2 leaf read Dave Chinner
2012-10-12  5:44 ` [PATCH 18/23] xfs: factor and verify attr leaf reads Dave Chinner
2012-10-12  5:44 ` [PATCH 19/23] xfs: add xfs_da_node verification Dave Chinner
2012-10-12  5:44 ` Dave Chinner [this message]
2012-10-12  5:44 ` [PATCH 21/23] xfs: add buffer pre-write callback Dave Chinner
2012-10-12  5:44 ` [PATCH 22/23] xfs: add pre-write metadata buffer verifier callbacks Dave Chinner
2012-10-13 16:02   ` Christoph Hellwig
2012-10-14  0:12     ` Dave Chinner
2012-10-18  4:50       ` [PATCH 24/23] xfs: convert buffer verifiers to an ops structure Dave Chinner
2012-10-23 12:36         ` Christoph Hellwig
2012-10-23 21:42           ` Dave Chinner
2012-10-12  5:44 ` [PATCH 23/23] xfs: connect up write verifiers to new buffers Dave Chinner

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