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[PATCH 11/19] xfs: add verifier callback to directorry read code

To: xfs@xxxxxxxxxxx
Subject: [PATCH 11/19] xfs: add verifier callback to directorry read code
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Tue, 9 Oct 2012 14:51:02 +1100
In-reply-to: <1349754670-32009-1-git-send-email-david@xxxxxxxxxxxxx>
References: <1349754670-32009-1-git-send-email-david@xxxxxxxxxxxxx>
From: Dave Chinner <dchinner@xxxxxxxxxx>

Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
---
 fs/xfs/xfs_attr.c       |   23 ++++++++++++-----------
 fs/xfs/xfs_attr_leaf.c  |   18 +++++++++---------
 fs/xfs/xfs_da_btree.c   |   44 ++++++++++++++++++++++++++++----------------
 fs/xfs/xfs_da_btree.h   |    7 ++++---
 fs/xfs/xfs_dir2_block.c |   23 ++++++++++++-----------
 fs/xfs/xfs_dir2_leaf.c  |   33 ++++++++++++++++-----------------
 fs/xfs/xfs_dir2_node.c  |   43 ++++++++++++++++++++-----------------------
 fs/xfs/xfs_file.c       |    2 +-
 8 files changed, 102 insertions(+), 91 deletions(-)

diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index ebacb8d..956c2ba 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -904,7 +904,7 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
        dp = args->dp;
        args->blkno = 0;
        error = xfs_da_read_buf(args->trans, args->dp, args->blkno, -1, &bp,
-                                            XFS_ATTR_FORK);
+                                            XFS_ATTR_FORK, NULL);
        if (error)
                return(error);
        ASSERT(bp != NULL);
@@ -1032,7 +1032,7 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
                 * remove the "old" attr from that block (neat, huh!)
                 */
                error = xfs_da_read_buf(args->trans, args->dp, args->blkno, -1,
-                                                    &bp, XFS_ATTR_FORK);
+                                                    &bp, XFS_ATTR_FORK, NULL);
                if (error)
                        return(error);
                ASSERT(bp != NULL);
@@ -1101,7 +1101,7 @@ xfs_attr_leaf_removename(xfs_da_args_t *args)
        dp = args->dp;
        args->blkno = 0;
        error = xfs_da_read_buf(args->trans, args->dp, args->blkno, -1, &bp,
-                                            XFS_ATTR_FORK);
+                                            XFS_ATTR_FORK, NULL);
        if (error) {
                return(error);
        }
@@ -1157,7 +1157,7 @@ xfs_attr_leaf_get(xfs_da_args_t *args)
 
        args->blkno = 0;
        error = xfs_da_read_buf(args->trans, args->dp, args->blkno, -1, &bp,
-                                            XFS_ATTR_FORK);
+                                            XFS_ATTR_FORK, NULL);
        if (error)
                return(error);
        ASSERT(bp != NULL);
@@ -1186,7 +1186,8 @@ xfs_attr_leaf_list(xfs_attr_list_context_t *context)
        struct xfs_buf *bp;
 
        context->cursor->blkno = 0;
-       error = xfs_da_read_buf(NULL, context->dp, 0, -1, &bp, XFS_ATTR_FORK);
+       error = xfs_da_read_buf(NULL, context->dp, 0, -1, &bp, XFS_ATTR_FORK,
+                               NULL);
        if (error)
                return XFS_ERROR(error);
        ASSERT(bp != NULL);
@@ -1601,7 +1602,7 @@ xfs_attr_node_removename(xfs_da_args_t *args)
                state->path.blk[0].bp = NULL;
 
                error = xfs_da_read_buf(args->trans, args->dp, 0, -1, &bp,
-                                                    XFS_ATTR_FORK);
+                                                    XFS_ATTR_FORK, NULL);
                if (error)
                        goto out;
                ASSERT((((xfs_attr_leafblock_t *)bp->b_addr)->hdr.info.magic) ==
@@ -1710,7 +1711,7 @@ xfs_attr_refillstate(xfs_da_state_t *state)
                        error = xfs_da_read_buf(state->args->trans,
                                                state->args->dp,
                                                blk->blkno, blk->disk_blkno,
-                                               &blk->bp, XFS_ATTR_FORK);
+                                               &blk->bp, XFS_ATTR_FORK, NULL);
                        if (error)
                                return(error);
                } else {
@@ -1729,7 +1730,7 @@ xfs_attr_refillstate(xfs_da_state_t *state)
                        error = xfs_da_read_buf(state->args->trans,
                                                state->args->dp,
                                                blk->blkno, blk->disk_blkno,
-                                               &blk->bp, XFS_ATTR_FORK);
+                                               &blk->bp, XFS_ATTR_FORK, NULL);
                        if (error)
                                return(error);
                } else {
@@ -1815,7 +1816,7 @@ xfs_attr_node_list(xfs_attr_list_context_t *context)
        bp = NULL;
        if (cursor->blkno > 0) {
                error = xfs_da_read_buf(NULL, context->dp, cursor->blkno, -1,
-                                             &bp, XFS_ATTR_FORK);
+                                             &bp, XFS_ATTR_FORK, NULL);
                if ((error != 0) && (error != EFSCORRUPTED))
                        return(error);
                if (bp) {
@@ -1858,7 +1859,7 @@ xfs_attr_node_list(xfs_attr_list_context_t *context)
                for (;;) {
                        error = xfs_da_read_buf(NULL, context->dp,
                                                      cursor->blkno, -1, &bp,
-                                                     XFS_ATTR_FORK);
+                                                     XFS_ATTR_FORK, NULL);
                        if (error)
                                return(error);
                        if (unlikely(bp == NULL)) {
@@ -1925,7 +1926,7 @@ xfs_attr_node_list(xfs_attr_list_context_t *context)
                cursor->blkno = be32_to_cpu(leaf->hdr.info.forw);
                xfs_trans_brelse(NULL, bp);
                error = xfs_da_read_buf(NULL, context->dp, cursor->blkno, -1,
-                                             &bp, XFS_ATTR_FORK);
+                                             &bp, XFS_ATTR_FORK, NULL);
                if (error)
                        return(error);
                if (unlikely((bp == NULL))) {
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index d330111..f2b698e 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -870,7 +870,7 @@ xfs_attr_leaf_to_node(xfs_da_args_t *args)
        if (error)
                goto out;
        error = xfs_da_read_buf(args->trans, args->dp, 0, -1, &bp1,
-                                            XFS_ATTR_FORK);
+                                            XFS_ATTR_FORK, NULL);
        if (error)
                goto out;
        ASSERT(bp1 != NULL);
@@ -1621,7 +1621,7 @@ xfs_attr_leaf_toosmall(xfs_da_state_t *state, int *action)
                if (blkno == 0)
                        continue;
                error = xfs_da_read_buf(state->args->trans, state->args->dp,
-                                       blkno, -1, &bp, XFS_ATTR_FORK);
+                                       blkno, -1, &bp, XFS_ATTR_FORK, NULL);
                if (error)
                        return(error);
                ASSERT(bp != NULL);
@@ -2496,7 +2496,7 @@ xfs_attr_leaf_clearflag(xfs_da_args_t *args)
         * Set up the operation.
         */
        error = xfs_da_read_buf(args->trans, args->dp, args->blkno, -1, &bp,
-                                            XFS_ATTR_FORK);
+                                            XFS_ATTR_FORK, NULL);
        if (error) {
                return(error);
        }
@@ -2561,7 +2561,7 @@ xfs_attr_leaf_setflag(xfs_da_args_t *args)
         * Set up the operation.
         */
        error = xfs_da_read_buf(args->trans, args->dp, args->blkno, -1, &bp,
-                                            XFS_ATTR_FORK);
+                                            XFS_ATTR_FORK, NULL);
        if (error) {
                return(error);
        }
@@ -2618,7 +2618,7 @@ xfs_attr_leaf_flipflags(xfs_da_args_t *args)
         * Read the block containing the "old" attr
         */
        error = xfs_da_read_buf(args->trans, args->dp, args->blkno, -1, &bp1,
-                                            XFS_ATTR_FORK);
+                                            XFS_ATTR_FORK, NULL);
        if (error) {
                return(error);
        }
@@ -2629,7 +2629,7 @@ xfs_attr_leaf_flipflags(xfs_da_args_t *args)
         */
        if (args->blkno2 != args->blkno) {
                error = xfs_da_read_buf(args->trans, args->dp, args->blkno2,
-                                       -1, &bp2, XFS_ATTR_FORK);
+                                       -1, &bp2, XFS_ATTR_FORK, NULL);
                if (error) {
                        return(error);
                }
@@ -2730,7 +2730,7 @@ xfs_attr_root_inactive(xfs_trans_t **trans, xfs_inode_t 
*dp)
         * the extents in reverse order the extent containing
         * block 0 must still be there.
         */
-       error = xfs_da_read_buf(*trans, dp, 0, -1, &bp, XFS_ATTR_FORK);
+       error = xfs_da_read_buf(*trans, dp, 0, -1, &bp, XFS_ATTR_FORK, NULL);
        if (error)
                return(error);
        blkno = XFS_BUF_ADDR(bp);
@@ -2816,7 +2816,7 @@ xfs_attr_node_inactive(
                 * before we come back to this one.
                 */
                error = xfs_da_read_buf(*trans, dp, child_fsb, -2, &child_bp,
-                                               XFS_ATTR_FORK);
+                                               XFS_ATTR_FORK, NULL);
                if (error)
                        return(error);
                if (child_bp) {
@@ -2857,7 +2857,7 @@ xfs_attr_node_inactive(
                 */
                if ((i+1) < count) {
                        error = xfs_da_read_buf(*trans, dp, 0, parent_blkno,
-                               &bp, XFS_ATTR_FORK);
+                               &bp, XFS_ATTR_FORK, NULL);
                        if (error)
                                return(error);
                        child_fsb = be32_to_cpu(node->btree[i+1].before);
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index 41d8764..a46035b 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -747,7 +747,7 @@ xfs_da_root_join(xfs_da_state_t *state, xfs_da_state_blk_t 
*root_blk)
        child = be32_to_cpu(oldroot->btree[0].before);
        ASSERT(child != 0);
        error = xfs_da_read_buf(args->trans, args->dp, child, -1, &bp,
-                                            args->whichfork);
+                                            args->whichfork, NULL);
        if (error)
                return(error);
        ASSERT(bp != NULL);
@@ -836,7 +836,8 @@ xfs_da_node_toosmall(xfs_da_state_t *state, int *action)
                if (blkno == 0)
                        continue;
                error = xfs_da_read_buf(state->args->trans, state->args->dp,
-                                       blkno, -1, &bp, state->args->whichfork);
+                                       blkno, -1, &bp, state->args->whichfork,
+                                       NULL);
                if (error)
                        return(error);
                ASSERT(bp != NULL);
@@ -1080,7 +1081,7 @@ xfs_da_node_lookup_int(xfs_da_state_t *state, int *result)
                 */
                blk->blkno = blkno;
                error = xfs_da_read_buf(args->trans, args->dp, blkno,
-                                       -1, &blk->bp, args->whichfork);
+                                       -1, &blk->bp, args->whichfork, NULL);
                if (error) {
                        blk->blkno = 0;
                        state->path.active--;
@@ -1243,7 +1244,7 @@ xfs_da_blk_link(xfs_da_state_t *state, xfs_da_state_blk_t 
*old_blk,
                if (old_info->back) {
                        error = xfs_da_read_buf(args->trans, args->dp,
                                                be32_to_cpu(old_info->back),
-                                               -1, &bp, args->whichfork);
+                                               -1, &bp, args->whichfork, NULL);
                        if (error)
                                return(error);
                        ASSERT(bp != NULL);
@@ -1264,7 +1265,7 @@ xfs_da_blk_link(xfs_da_state_t *state, xfs_da_state_blk_t 
*old_blk,
                if (old_info->forw) {
                        error = xfs_da_read_buf(args->trans, args->dp,
                                                be32_to_cpu(old_info->forw),
-                                               -1, &bp, args->whichfork);
+                                               -1, &bp, args->whichfork, NULL);
                        if (error)
                                return(error);
                        ASSERT(bp != NULL);
@@ -1364,7 +1365,7 @@ xfs_da_blk_unlink(xfs_da_state_t *state, 
xfs_da_state_blk_t *drop_blk,
                if (drop_info->back) {
                        error = xfs_da_read_buf(args->trans, args->dp,
                                                be32_to_cpu(drop_info->back),
-                                               -1, &bp, args->whichfork);
+                                               -1, &bp, args->whichfork, NULL);
                        if (error)
                                return(error);
                        ASSERT(bp != NULL);
@@ -1381,7 +1382,7 @@ xfs_da_blk_unlink(xfs_da_state_t *state, 
xfs_da_state_blk_t *drop_blk,
                if (drop_info->forw) {
                        error = xfs_da_read_buf(args->trans, args->dp,
                                                be32_to_cpu(drop_info->forw),
-                                               -1, &bp, args->whichfork);
+                                               -1, &bp, args->whichfork, NULL);
                        if (error)
                                return(error);
                        ASSERT(bp != NULL);
@@ -1464,7 +1465,7 @@ xfs_da_path_shift(xfs_da_state_t *state, 
xfs_da_state_path_t *path,
                 */
                blk->blkno = blkno;
                error = xfs_da_read_buf(args->trans, args->dp, blkno, -1,
-                                                    &blk->bp, args->whichfork);
+                                       &blk->bp, args->whichfork, NULL);
                if (error)
                        return(error);
                ASSERT(blk->bp != NULL);
@@ -1727,7 +1728,8 @@ xfs_da_swap_lastblock(
         * Read the last block in the btree space.
         */
        last_blkno = (xfs_dablk_t)lastoff - mp->m_dirblkfsbs;
-       if ((error = xfs_da_read_buf(tp, ip, last_blkno, -1, &last_buf, w)))
+       error = xfs_da_read_buf(tp, ip, last_blkno, -1, &last_buf, w, NULL);
+       if (error)
                return error;
        /*
         * Copy the last block into the dead buffer and log it.
@@ -1753,7 +1755,9 @@ xfs_da_swap_lastblock(
         * If the moved block has a left sibling, fix up the pointers.
         */
        if ((sib_blkno = be32_to_cpu(dead_info->back))) {
-               if ((error = xfs_da_read_buf(tp, ip, sib_blkno, -1, &sib_buf, 
w)))
+               error = xfs_da_read_buf(tp, ip, sib_blkno, -1, &sib_buf, w,
+                                       NULL);
+               if (error)
                        goto done;
                sib_info = sib_buf->b_addr;
                if (unlikely(
@@ -1774,7 +1778,9 @@ xfs_da_swap_lastblock(
         * If the moved block has a right sibling, fix up the pointers.
         */
        if ((sib_blkno = be32_to_cpu(dead_info->forw))) {
-               if ((error = xfs_da_read_buf(tp, ip, sib_blkno, -1, &sib_buf, 
w)))
+               error = xfs_da_read_buf(tp, ip, sib_blkno, -1, &sib_buf, w,
+                                       NULL);
+               if (error)
                        goto done;
                sib_info = sib_buf->b_addr;
                if (unlikely(
@@ -1797,7 +1803,9 @@ xfs_da_swap_lastblock(
         * Walk down the tree looking for the parent of the moved block.
         */
        for (;;) {
-               if ((error = xfs_da_read_buf(tp, ip, par_blkno, -1, &par_buf, 
w)))
+               error = xfs_da_read_buf(tp, ip, par_blkno, -1, &par_buf, w,
+                                       NULL);
+               if (error)
                        goto done;
                par_node = par_buf->b_addr;
                if (unlikely(par_node->hdr.info.magic !=
@@ -1847,7 +1855,9 @@ xfs_da_swap_lastblock(
                        error = XFS_ERROR(EFSCORRUPTED);
                        goto done;
                }
-               if ((error = xfs_da_read_buf(tp, ip, par_blkno, -1, &par_buf, 
w)))
+               error = xfs_da_read_buf(tp, ip, par_blkno, -1, &par_buf, w,
+                                       NULL);
+               if (error)
                        goto done;
                par_node = par_buf->b_addr;
                if (unlikely(
@@ -2133,7 +2143,8 @@ xfs_da_read_buf(
        xfs_dablk_t             bno,
        xfs_daddr_t             mappedbno,
        struct xfs_buf          **bpp,
-       int                     whichfork)
+       int                     whichfork,
+       xfs_buf_iodone_t        verifier)
 {
        struct xfs_buf          *bp;
        struct xfs_buf_map      map;
@@ -2155,7 +2166,7 @@ xfs_da_read_buf(
 
        error = xfs_trans_read_buf_map(dp->i_mount, trans,
                                        dp->i_mount->m_ddev_targp,
-                                       mapp, nmap, 0, &bp, NULL);
+                                       mapp, nmap, 0, &bp, verifier);
        if (error)
                goto out_free;
 
@@ -2211,7 +2222,8 @@ xfs_da_reada_buf(
        struct xfs_trans        *trans,
        struct xfs_inode        *dp,
        xfs_dablk_t             bno,
-       int                     whichfork)
+       int                     whichfork,
+       xfs_buf_iodone_t        verifier)
 {
        xfs_daddr_t             mappedbno = -1;
        struct xfs_buf_map      map;
diff --git a/fs/xfs/xfs_da_btree.h b/fs/xfs/xfs_da_btree.h
index 132adaf..bf8bfaa 100644
--- a/fs/xfs/xfs_da_btree.h
+++ b/fs/xfs/xfs_da_btree.h
@@ -18,7 +18,6 @@
 #ifndef __XFS_DA_BTREE_H__
 #define        __XFS_DA_BTREE_H__
 
-struct xfs_buf;
 struct xfs_bmap_free;
 struct xfs_inode;
 struct xfs_mount;
@@ -226,9 +225,11 @@ int        xfs_da_get_buf(struct xfs_trans *trans, struct 
xfs_inode *dp,
                              struct xfs_buf **bp, int whichfork);
 int    xfs_da_read_buf(struct xfs_trans *trans, struct xfs_inode *dp,
                               xfs_dablk_t bno, xfs_daddr_t mappedbno,
-                              struct xfs_buf **bpp, int whichfork);
+                              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_dablk_t 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_block.c b/fs/xfs/xfs_dir2_block.c
index e93ca8f..53666ca 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -97,10 +97,10 @@ xfs_dir2_block_addname(
        /*
         * Read the (one and only) directory block into dabuf bp.
         */
-       if ((error =
-           xfs_da_read_buf(tp, dp, mp->m_dirdatablk, -1, &bp, XFS_DATA_FORK))) 
{
+       error = xfs_da_read_buf(tp, dp, mp->m_dirdatablk, -1, &bp,
+                               XFS_DATA_FORK, NULL);
+       if (error)
                return error;
-       }
        ASSERT(bp != NULL);
        hdr = bp->b_addr;
        /*
@@ -457,7 +457,7 @@ xfs_dir2_block_getdents(
         * Can't read the block, give up, else get dabuf in bp.
         */
        error = xfs_da_read_buf(NULL, dp, mp->m_dirdatablk, -1,
-                               &bp, XFS_DATA_FORK);
+                               &bp, XFS_DATA_FORK, NULL);
        if (error)
                return error;
 
@@ -640,10 +640,10 @@ xfs_dir2_block_lookup_int(
        /*
         * Read the buffer, return error if we can't get it.
         */
-       if ((error =
-           xfs_da_read_buf(tp, dp, mp->m_dirdatablk, -1, &bp, XFS_DATA_FORK))) 
{
+       error = xfs_da_read_buf(tp, dp, mp->m_dirdatablk, -1, &bp,
+                               XFS_DATA_FORK, NULL);
+       if (error)
                return error;
-       }
        ASSERT(bp != NULL);
        hdr = bp->b_addr;
        xfs_dir2_data_check(dp, bp);
@@ -917,10 +917,11 @@ xfs_dir2_leaf_to_block(
        /*
         * Read the data block if we don't already have it, give up if it fails.
         */
-       if (dbp == NULL &&
-           (error = xfs_da_read_buf(tp, dp, mp->m_dirdatablk, -1, &dbp,
-                   XFS_DATA_FORK))) {
-               return error;
+       if (!dbp) {
+               error = xfs_da_read_buf(tp, dp, mp->m_dirdatablk, -1, &dbp,
+                                       XFS_DATA_FORK, NULL);
+               if (error)
+                       return error;
        }
        hdr = dbp->b_addr;
        ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC));
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index bac8698..86e3dc1 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -315,10 +315,9 @@ xfs_dir2_leaf_addname(
         * Read the leaf block.
         */
        error = xfs_da_read_buf(tp, dp, mp->m_dirleafblk, -1, &lbp,
-               XFS_DATA_FORK);
-       if (error) {
+                               XFS_DATA_FORK, NULL);
+       if (error)
                return error;
-       }
        ASSERT(lbp != NULL);
        /*
         * Look up the entry by hash value and name.
@@ -500,9 +499,9 @@ xfs_dir2_leaf_addname(
         * Just read that one in.
         */
        else {
-               if ((error =
-                   xfs_da_read_buf(tp, dp, xfs_dir2_db_to_da(mp, use_block),
-                           -1, &dbp, XFS_DATA_FORK))) {
+               error = xfs_da_read_buf(tp, dp, xfs_dir2_db_to_da(mp, 
use_block),
+                                       -1, &dbp, XFS_DATA_FORK, NULL);
+               if (error) {
                        xfs_trans_brelse(tp, lbp);
                        return error;
                }
@@ -895,7 +894,7 @@ xfs_dir2_leaf_readbuf(
        error = xfs_da_read_buf(NULL, dp, map->br_startoff,
                        map->br_blockcount >= mp->m_dirblkfsbs ?
                            XFS_FSB_TO_DADDR(mp, map->br_startblock) : -1,
-                       &bp, XFS_DATA_FORK);
+                       &bp, XFS_DATA_FORK, NULL);
 
        /*
         * Should just skip over the data block instead of giving up.
@@ -938,7 +937,7 @@ xfs_dir2_leaf_readbuf(
                        xfs_da_reada_buf(NULL, dp,
                                        map[mip->ra_index].br_startoff +
                                                        mip->ra_offset,
-                                       XFS_DATA_FORK);
+                                       XFS_DATA_FORK, NULL);
                        mip->ra_current = i;
                }
 
@@ -1376,7 +1375,7 @@ xfs_dir2_leaf_lookup_int(
         * Read the leaf block into the buffer.
         */
        error = xfs_da_read_buf(tp, dp, mp->m_dirleafblk, -1, &lbp,
-                                                       XFS_DATA_FORK);
+                                                       XFS_DATA_FORK, NULL);
        if (error)
                return error;
        *lbpp = lbp;
@@ -1411,7 +1410,7 @@ xfs_dir2_leaf_lookup_int(
                                xfs_trans_brelse(tp, dbp);
                        error = xfs_da_read_buf(tp, dp,
                                                xfs_dir2_db_to_da(mp, newdb),
-                                               -1, &dbp, XFS_DATA_FORK);
+                                               -1, &dbp, XFS_DATA_FORK, NULL);
                        if (error) {
                                xfs_trans_brelse(tp, lbp);
                                return error;
@@ -1453,7 +1452,7 @@ xfs_dir2_leaf_lookup_int(
                        xfs_trans_brelse(tp, dbp);
                        error = xfs_da_read_buf(tp, dp,
                                                xfs_dir2_db_to_da(mp, cidb),
-                                               -1, &dbp, XFS_DATA_FORK);
+                                               -1, &dbp, XFS_DATA_FORK, NULL);
                        if (error) {
                                xfs_trans_brelse(tp, lbp);
                                return error;
@@ -1738,10 +1737,10 @@ xfs_dir2_leaf_trim_data(
        /*
         * Read the offending data block.  We need its buffer.
         */
-       if ((error = xfs_da_read_buf(tp, dp, xfs_dir2_db_to_da(mp, db), -1, 
&dbp,
-                       XFS_DATA_FORK))) {
+       error = xfs_da_read_buf(tp, dp, xfs_dir2_db_to_da(mp, db), -1, &dbp,
+                               XFS_DATA_FORK, NULL);
+       if (error)
                return error;
-       }
 
        leaf = lbp->b_addr;
        ltp = xfs_dir2_leaf_tail_p(mp, leaf);
@@ -1864,10 +1863,10 @@ xfs_dir2_node_to_leaf(
        /*
         * Read the freespace block.
         */
-       if ((error = xfs_da_read_buf(tp, dp, mp->m_dirfreeblk, -1, &fbp,
-                       XFS_DATA_FORK))) {
+       error = xfs_da_read_buf(tp, dp,  mp->m_dirfreeblk, -1, &fbp,
+                               XFS_DATA_FORK, NULL);
+       if (error)
                return error;
-       }
        free = fbp->b_addr;
        ASSERT(free->hdr.magic == cpu_to_be32(XFS_DIR2_FREE_MAGIC));
        ASSERT(!free->hdr.firstdb);
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index 6c70524..290c2b1 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -399,7 +399,7 @@ xfs_dir2_leafn_lookup_for_addname(
                                 */
                                error = xfs_da_read_buf(tp, dp,
                                                xfs_dir2_db_to_da(mp, newfdb),
-                                               -1, &curbp, XFS_DATA_FORK);
+                                               -1, &curbp, XFS_DATA_FORK, 
NULL);
                                if (error)
                                        return error;
                                free = curbp->b_addr;
@@ -536,7 +536,7 @@ xfs_dir2_leafn_lookup_for_entry(
                        } else {
                                error = xfs_da_read_buf(tp, dp,
                                                xfs_dir2_db_to_da(mp, newdb),
-                                               -1, &curbp, XFS_DATA_FORK);
+                                               -1, &curbp, XFS_DATA_FORK, 
NULL);
                                if (error)
                                        return error;
                        }
@@ -915,10 +915,10 @@ xfs_dir2_leafn_remove(
                 * read in the free block.
                 */
                fdb = xfs_dir2_db_to_fdb(mp, db);
-               if ((error = xfs_da_read_buf(tp, dp, xfs_dir2_db_to_da(mp, fdb),
-                               -1, &fbp, XFS_DATA_FORK))) {
+               error = xfs_da_read_buf(tp, dp, xfs_dir2_db_to_da(mp, fdb),
+                                       -1, &fbp, XFS_DATA_FORK, NULL);
+               if (error)
                        return error;
-               }
                free = fbp->b_addr;
                ASSERT(free->hdr.magic == cpu_to_be32(XFS_DIR2_FREE_MAGIC));
                ASSERT(be32_to_cpu(free->hdr.firstdb) ==
@@ -1169,11 +1169,10 @@ xfs_dir2_leafn_toosmall(
                /*
                 * Read the sibling leaf block.
                 */
-               if ((error =
-                   xfs_da_read_buf(state->args->trans, state->args->dp, blkno,
-                           -1, &bp, XFS_DATA_FORK))) {
+               error = xfs_da_read_buf(state->args->trans, state->args->dp,
+                                       blkno, -1, &bp, XFS_DATA_FORK, NULL);
+               if (error)
                        return error;
-               }
                ASSERT(bp != NULL);
                /*
                 * Count bytes in the two blocks combined.
@@ -1454,14 +1453,13 @@ xfs_dir2_node_addname_int(
                         * This should be really rare, so there's no reason
                         * to avoid it.
                         */
-                       if ((error = xfs_da_read_buf(tp, dp,
-                                       xfs_dir2_db_to_da(mp, fbno), -2, &fbp,
-                                       XFS_DATA_FORK))) {
+                       error = xfs_da_read_buf(tp, dp,
+                                               xfs_dir2_db_to_da(mp, fbno), -2,
+                                               &fbp, XFS_DATA_FORK, NULL);
+                       if (error)
                                return error;
-                       }
-                       if (unlikely(fbp == NULL)) {
+                       if (!fbp)
                                continue;
-                       }
                        free = fbp->b_addr;
                        ASSERT(free->hdr.magic == 
cpu_to_be32(XFS_DIR2_FREE_MAGIC));
                        findex = 0;
@@ -1520,9 +1518,9 @@ xfs_dir2_node_addname_int(
                 * that was just allocated.
                 */
                fbno = xfs_dir2_db_to_fdb(mp, dbno);
-               if (unlikely(error = xfs_da_read_buf(tp, dp,
-                               xfs_dir2_db_to_da(mp, fbno), -2, &fbp,
-                               XFS_DATA_FORK)))
+               error = xfs_da_read_buf(tp, dp, xfs_dir2_db_to_da(mp, fbno), -2,
+                                       &fbp, XFS_DATA_FORK, NULL);
+               if (error)
                        return error;
 
                /*
@@ -1631,7 +1629,7 @@ xfs_dir2_node_addname_int(
                 * Read the data block in.
                 */
                error = xfs_da_read_buf(tp, dp, xfs_dir2_db_to_da(mp, dbno),
-                               -1, &dbp, XFS_DATA_FORK);
+                                       -1, &dbp, XFS_DATA_FORK, NULL);
                if (error)
                        return error;
                hdr = dbp->b_addr;
@@ -1917,11 +1915,10 @@ xfs_dir2_node_trim_free(
        /*
         * Read the freespace block.
         */
-       if (unlikely(error = xfs_da_read_buf(tp, dp, (xfs_dablk_t)fo, -2, &bp,
-                       XFS_DATA_FORK))) {
+       error = xfs_da_read_buf(tp, dp, (xfs_dablk_t)fo, -2, &bp,
+                               XFS_DATA_FORK, NULL);
+       if (error)
                return error;
-       }
-
        /*
         * There can be holes in freespace.  If fo is a hole, there's
         * nothing to do.
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 5902cd6..c0dc74e 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -890,7 +890,7 @@ 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);
+               xfs_da_reada_buf(NULL, ip, 0, XFS_DATA_FORK, NULL);
        xfs_iunlock(ip, mode);
        return 0;
 }
-- 
1.7.10

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