xfs: vectorise directory data operations

Following from the initial patches to vectorise the shortform
directory encode/decode operations, convert half the data block
operations to use the vector. The rest will be done in a second
patch.

This further reduces the size of the built binary:

   text    data     bss     dec     hex filename
 794490   96802    1096  892388   d9de4 fs/xfs/xfs.o.orig
 792986   96802    1096  890884   d9804 fs/xfs/xfs.o.p1
 792350   96802    1096  890248   d9588 fs/xfs/xfs.o.p2
 789293   96802    1096  887191   d8997 fs/xfs/xfs.o.p3

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>

1 files changed, 12 insertions, 11 deletions

diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index b8381646b8af..a1d133981c14 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -604,7 +604,7 @@ xfs_dir2_leafn_lookup_for_addname(
                 ASSERT(free->hdr.magic == cpu_to_be32(XFS_DIR2_FREE_MAGIC) ||
                        free->hdr.magic == cpu_to_be32(XFS_DIR3_FREE_MAGIC));
         }
-        length = xfs_dir3_data_entsize(mp, args->namelen);
+        length = dp->d_ops->data_entsize(args->namelen);
         /*
          * Loop over leaf entries with the right hash value.
          */
@@ -815,7 +815,7 @@ xfs_dir2_leafn_lookup_for_entry(
                                 xfs_trans_brelse(tp, state->extrablk.bp);
                         args->cmpresult = cmp;
                         args->inumber = be64_to_cpu(dep->inumber);
-                        args->filetype = xfs_dir3_dirent_get_ftype(mp, dep);
+                        args->filetype = dp->d_ops->data_get_ftype(dep);
                         *indexp = index;
                         state->extravalid = 1;
                         state->extrablk.bp = curbp;
@@ -1259,13 +1259,13 @@ xfs_dir2_leafn_remove(
         longest = be16_to_cpu(bf[0].length);
         needlog = needscan = 0;
         xfs_dir2_data_make_free(tp, dbp, off,
-                xfs_dir3_data_entsize(mp, dep->namelen), &needlog, &needscan);
+                dp->d_ops->data_entsize(dep->namelen), &needlog, &needscan);
         /*
          * Rescan the data block freespaces for bestfree.
          * Log the data block header if needed.
          */
         if (needscan)
-                xfs_dir2_data_freescan(mp, hdr, &needlog);
+                xfs_dir2_data_freescan(dp, hdr, &needlog);
         if (needlog)
                 xfs_dir2_data_log_header(tp, dbp);
         xfs_dir3_data_check(dp, dbp);
@@ -1711,7 +1711,7 @@ xfs_dir2_node_addname_int(
         dp = args->dp;
         mp = dp->i_mount;
         tp = args->trans;
-        length = xfs_dir3_data_entsize(mp, args->namelen);
+        length = dp->d_ops->data_entsize(args->namelen);
         /*
          * If we came in with a freespace block that means that lookup
          * found an entry with our hash value.  This is the freespace
@@ -2007,15 +2007,15 @@ xfs_dir2_node_addname_int(
         dep->inumber = cpu_to_be64(args->inumber);
         dep->namelen = args->namelen;
         memcpy(dep->name, args->name, dep->namelen);
-        xfs_dir3_dirent_put_ftype(mp, dep, args->filetype);
-        tagp = xfs_dir3_data_entry_tag_p(mp, dep);
+        dp->d_ops->data_put_ftype(dep, args->filetype);
+        tagp = dp->d_ops->data_entry_tag_p(dep);
         *tagp = cpu_to_be16((char *)dep - (char *)hdr);
-        xfs_dir2_data_log_entry(tp, dbp, dep);
+        xfs_dir2_data_log_entry(tp, dp, dbp, dep);
         /*
          * Rescan the block for bestfree if needed.
          */
         if (needscan)
-                xfs_dir2_data_freescan(mp, hdr, &needlog);
+                xfs_dir2_data_freescan(dp, hdr, &needlog);
         /*
          * Log the data block header if needed.
          */
@@ -2228,8 +2228,9 @@ xfs_dir2_node_replace(
                  * Fill in the new inode number and log the entry.
                  */
                 dep->inumber = cpu_to_be64(inum);
-                xfs_dir3_dirent_put_ftype(state->mp, dep, args->filetype);
-                xfs_dir2_data_log_entry(args->trans, state->extrablk.bp, dep);
+                args->dp->d_ops->data_put_ftype(dep, args->filetype);
+                xfs_dir2_data_log_entry(args->trans, args->dp,
+                                        state->extrablk.bp, dep);
                 rval = 0;
         }
         /*