nfsd4: support putpubfh operation
[safe/jmp/linux-2.6] / fs / xfs / xfs_dir2_block.c
index f70640c..e1f0a06 100644 (file)
 #include "xfs_inum.h"
 #include "xfs_trans.h"
 #include "xfs_sb.h"
-#include "xfs_dir.h"
+#include "xfs_ag.h"
 #include "xfs_dir2.h"
 #include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_dir_sf.h"
 #include "xfs_dir2_sf.h"
 #include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
-#include "xfs_dir_leaf.h"
 #include "xfs_dir2_data.h"
 #include "xfs_dir2_leaf.h"
 #include "xfs_dir2_block.h"
@@ -51,6 +49,18 @@ static int xfs_dir2_block_lookup_int(xfs_da_args_t *args, xfs_dabuf_t **bpp,
                                     int *entno);
 static int xfs_dir2_block_sort(const void *a, const void *b);
 
+static xfs_dahash_t xfs_dir_hash_dot, xfs_dir_hash_dotdot;
+
+/*
+ * One-time startup routine called from xfs_init().
+ */
+void
+xfs_dir_startup(void)
+{
+       xfs_dir_hash_dot = xfs_da_hashname(".", 1);
+       xfs_dir_hash_dotdot = xfs_da_hashname("..", 2);
+}
+
 /*
  * Add an entry to a block directory.
  */
@@ -81,7 +91,7 @@ xfs_dir2_block_addname(
        xfs_mount_t             *mp;            /* filesystem mount point */
        int                     needlog;        /* need to log header */
        int                     needscan;       /* need to rescan freespace */
-       xfs_dir2_data_off_t     *tagp;          /* pointer to tag value */
+       __be16                  *tagp;          /* pointer to tag value */
        xfs_trans_t             *tp;            /* transaction structure */
 
        xfs_dir2_trace_args("block_addname", args);
@@ -106,13 +116,13 @@ xfs_dir2_block_addname(
                xfs_da_brelse(tp, bp);
                return XFS_ERROR(EFSCORRUPTED);
        }
-       len = XFS_DIR2_DATA_ENTSIZE(args->namelen);
+       len = xfs_dir2_data_entsize(args->namelen);
        /*
         * Set up pointers to parts of the block.
         */
        bf = block->hdr.bestfree;
-       btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
-       blp = XFS_DIR2_BLOCK_LEAF_P(btp);
+       btp = xfs_dir2_block_tail_p(mp, block);
+       blp = xfs_dir2_block_leaf_p(btp);
        /*
         * No stale entries?  Need space for entry and new leaf.
         */
@@ -120,17 +130,17 @@ xfs_dir2_block_addname(
                /*
                 * Tag just before the first leaf entry.
                 */
-               tagp = (xfs_dir2_data_off_t *)blp - 1;
+               tagp = (__be16 *)blp - 1;
                /*
                 * Data object just before the first leaf entry.
                 */
-               enddup = (xfs_dir2_data_unused_t *)((char *)block + INT_GET(*tagp, ARCH_CONVERT));
+               enddup = (xfs_dir2_data_unused_t *)((char *)block + be16_to_cpu(*tagp));
                /*
                 * If it's not free then can't do this add without cleaning up:
                 * the space before the first leaf entry needs to be free so it
                 * can be expanded to hold the pointer to the new entry.
                 */
-               if (INT_GET(enddup->freetag, ARCH_CONVERT) != XFS_DIR2_DATA_FREE_TAG)
+               if (be16_to_cpu(enddup->freetag) != XFS_DIR2_DATA_FREE_TAG)
                        dup = enddup = NULL;
                /*
                 * Check out the biggest freespace and see if it's the same one.
@@ -143,7 +153,7 @@ xfs_dir2_block_addname(
                                 * It is the biggest freespace, is it too small
                                 * to hold the new leaf too?
                                 */
-                               if (INT_GET(dup->length, ARCH_CONVERT) < len + (uint)sizeof(*blp)) {
+                               if (be16_to_cpu(dup->length) < len + (uint)sizeof(*blp)) {
                                        /*
                                         * Yes, we use the second-largest
                                         * entry instead if it works.
@@ -160,7 +170,7 @@ xfs_dir2_block_addname(
                                 * Not the same free entry,
                                 * just check its length.
                                 */
-                               if (INT_GET(dup->length, ARCH_CONVERT) < len) {
+                               if (be16_to_cpu(dup->length) < len) {
                                        dup = NULL;
                                }
                        }
@@ -183,20 +193,20 @@ xfs_dir2_block_addname(
                /*
                 * Tag just before the first leaf entry.
                 */
-               tagp = (xfs_dir2_data_off_t *)blp - 1;
+               tagp = (__be16 *)blp - 1;
                /*
                 * Data object just before the first leaf entry.
                 */
-               dup = (xfs_dir2_data_unused_t *)((char *)block + INT_GET(*tagp, ARCH_CONVERT));
+               dup = (xfs_dir2_data_unused_t *)((char *)block + be16_to_cpu(*tagp));
                /*
                 * If it's not free then the data will go where the
                 * leaf data starts now, if it works at all.
                 */
-               if (INT_GET(dup->freetag, ARCH_CONVERT) == XFS_DIR2_DATA_FREE_TAG) {
-                       if (INT_GET(dup->length, ARCH_CONVERT) + (INT_GET(btp->stale, ARCH_CONVERT) - 1) *
+               if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG) {
+                       if (be16_to_cpu(dup->length) + (be32_to_cpu(btp->stale) - 1) *
                            (uint)sizeof(*blp) < len)
                                dup = NULL;
-               } else if ((INT_GET(btp->stale, ARCH_CONVERT) - 1) * (uint)sizeof(*blp) < len)
+               } else if ((be32_to_cpu(btp->stale) - 1) * (uint)sizeof(*blp) < len)
                        dup = NULL;
                else
                        dup = (xfs_dir2_data_unused_t *)blp;
@@ -205,7 +215,7 @@ xfs_dir2_block_addname(
        /*
         * If this isn't a real add, we're done with the buffer.
         */
-       if (args->justcheck)
+       if (args->op_flags & XFS_DA_OP_JUSTCHECK)
                xfs_da_brelse(tp, bp);
        /*
         * If we don't have space for the new entry & leaf ...
@@ -215,7 +225,7 @@ xfs_dir2_block_addname(
                 * Not trying to actually do anything, or don't have
                 * a space reservation: return no-space.
                 */
-               if (args->justcheck || args->total == 0)
+               if ((args->op_flags & XFS_DA_OP_JUSTCHECK) || args->total == 0)
                        return XFS_ERROR(ENOSPC);
                /*
                 * Convert to the next larger format.
@@ -230,7 +240,7 @@ xfs_dir2_block_addname(
        /*
         * Just checking, and it would work, so say so.
         */
-       if (args->justcheck)
+       if (args->op_flags & XFS_DA_OP_JUSTCHECK)
                return 0;
        needlog = needscan = 0;
        /*
@@ -242,11 +252,11 @@ xfs_dir2_block_addname(
                int     fromidx;                /* source leaf index */
                int     toidx;                  /* target leaf index */
 
-               for (fromidx = toidx = INT_GET(btp->count, ARCH_CONVERT) - 1,
+               for (fromidx = toidx = be32_to_cpu(btp->count) - 1,
                        highstale = lfloghigh = -1;
                     fromidx >= 0;
                     fromidx--) {
-                       if (INT_GET(blp[fromidx].address, ARCH_CONVERT) == XFS_DIR2_NULL_DATAPTR) {
+                       if (be32_to_cpu(blp[fromidx].address) == XFS_DIR2_NULL_DATAPTR) {
                                if (highstale == -1)
                                        highstale = toidx;
                                else {
@@ -259,22 +269,21 @@ xfs_dir2_block_addname(
                                blp[toidx] = blp[fromidx];
                        toidx--;
                }
-               lfloglow = toidx + 1 - (INT_GET(btp->stale, ARCH_CONVERT) - 1);
-               lfloghigh -= INT_GET(btp->stale, ARCH_CONVERT) - 1;
-               INT_MOD(btp->count, ARCH_CONVERT, -(INT_GET(btp->stale, ARCH_CONVERT) - 1));
+               lfloglow = toidx + 1 - (be32_to_cpu(btp->stale) - 1);
+               lfloghigh -= be32_to_cpu(btp->stale) - 1;
+               be32_add_cpu(&btp->count, -(be32_to_cpu(btp->stale) - 1));
                xfs_dir2_data_make_free(tp, bp,
                        (xfs_dir2_data_aoff_t)((char *)blp - (char *)block),
-                       (xfs_dir2_data_aoff_t)((INT_GET(btp->stale, ARCH_CONVERT) - 1) * sizeof(*blp)),
+                       (xfs_dir2_data_aoff_t)((be32_to_cpu(btp->stale) - 1) * sizeof(*blp)),
                        &needlog, &needscan);
-               blp += INT_GET(btp->stale, ARCH_CONVERT) - 1;
-               INT_SET(btp->stale, ARCH_CONVERT, 1);
+               blp += be32_to_cpu(btp->stale) - 1;
+               btp->stale = cpu_to_be32(1);
                /*
                 * If we now need to rebuild the bestfree map, do so.
                 * This needs to happen before the next call to use_free.
                 */
                if (needscan) {
-                       xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block,
-                               &needlog, NULL);
+                       xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block, &needlog);
                        needscan = 0;
                }
        }
@@ -282,23 +291,23 @@ xfs_dir2_block_addname(
         * Set leaf logging boundaries to impossible state.
         * For the no-stale case they're set explicitly.
         */
-       else if (INT_GET(btp->stale, ARCH_CONVERT)) {
-               lfloglow = INT_GET(btp->count, ARCH_CONVERT);
+       else if (btp->stale) {
+               lfloglow = be32_to_cpu(btp->count);
                lfloghigh = -1;
        }
        /*
         * Find the slot that's first lower than our hash value, -1 if none.
         */
-       for (low = 0, high = INT_GET(btp->count, ARCH_CONVERT) - 1; low <= high; ) {
+       for (low = 0, high = be32_to_cpu(btp->count) - 1; low <= high; ) {
                mid = (low + high) >> 1;
-               if ((hash = INT_GET(blp[mid].hashval, ARCH_CONVERT)) == args->hashval)
+               if ((hash = be32_to_cpu(blp[mid].hashval)) == args->hashval)
                        break;
                if (hash < args->hashval)
                        low = mid + 1;
                else
                        high = mid - 1;
        }
-       while (mid >= 0 && INT_GET(blp[mid].hashval, ARCH_CONVERT) >= args->hashval) {
+       while (mid >= 0 && be32_to_cpu(blp[mid].hashval) >= args->hashval) {
                mid--;
        }
        /*
@@ -310,21 +319,21 @@ xfs_dir2_block_addname(
                 */
                xfs_dir2_data_use_free(tp, bp, enddup,
                        (xfs_dir2_data_aoff_t)
-                       ((char *)enddup - (char *)block + INT_GET(enddup->length, ARCH_CONVERT) -
+                       ((char *)enddup - (char *)block + be16_to_cpu(enddup->length) -
                         sizeof(*blp)),
                        (xfs_dir2_data_aoff_t)sizeof(*blp),
                        &needlog, &needscan);
                /*
                 * Update the tail (entry count).
                 */
-               INT_MOD(btp->count, ARCH_CONVERT, +1);
+               be32_add_cpu(&btp->count, 1);
                /*
                 * If we now need to rebuild the bestfree map, do so.
                 * This needs to happen before the next call to use_free.
                 */
                if (needscan) {
                        xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block,
-                               &needlog, NULL);
+                               &needlog);
                        needscan = 0;
                }
                /*
@@ -345,12 +354,12 @@ xfs_dir2_block_addname(
        else {
                for (lowstale = mid;
                     lowstale >= 0 &&
-                       INT_GET(blp[lowstale].address, ARCH_CONVERT) != XFS_DIR2_NULL_DATAPTR;
+                       be32_to_cpu(blp[lowstale].address) != XFS_DIR2_NULL_DATAPTR;
                     lowstale--)
                        continue;
                for (highstale = mid + 1;
-                    highstale < INT_GET(btp->count, ARCH_CONVERT) &&
-                       INT_GET(blp[highstale].address, ARCH_CONVERT) != XFS_DIR2_NULL_DATAPTR &&
+                    highstale < be32_to_cpu(btp->count) &&
+                       be32_to_cpu(blp[highstale].address) != XFS_DIR2_NULL_DATAPTR &&
                        (lowstale < 0 || mid - lowstale > highstale - mid);
                     highstale++)
                        continue;
@@ -358,7 +367,7 @@ xfs_dir2_block_addname(
                 * Move entries toward the low-numbered stale entry.
                 */
                if (lowstale >= 0 &&
-                   (highstale == INT_GET(btp->count, ARCH_CONVERT) ||
+                   (highstale == be32_to_cpu(btp->count) ||
                     mid - lowstale <= highstale - mid)) {
                        if (mid - lowstale)
                                memmove(&blp[lowstale], &blp[lowstale + 1],
@@ -370,7 +379,7 @@ xfs_dir2_block_addname(
                 * Move entries toward the high-numbered stale entry.
                 */
                else {
-                       ASSERT(highstale < INT_GET(btp->count, ARCH_CONVERT));
+                       ASSERT(highstale < be32_to_cpu(btp->count));
                        mid++;
                        if (highstale - mid)
                                memmove(&blp[mid + 1], &blp[mid],
@@ -378,7 +387,7 @@ xfs_dir2_block_addname(
                        lfloglow = MIN(mid, lfloglow);
                        lfloghigh = MAX(highstale, lfloghigh);
                }
-               INT_MOD(btp->stale, ARCH_CONVERT, -1);
+               be32_add_cpu(&btp->stale, -1);
        }
        /*
         * Point to the new data entry.
@@ -387,8 +396,9 @@ xfs_dir2_block_addname(
        /*
         * Fill in the leaf entry.
         */
-       INT_SET(blp[mid].hashval, ARCH_CONVERT, args->hashval);
-       INT_SET(blp[mid].address, ARCH_CONVERT, XFS_DIR2_BYTE_TO_DATAPTR(mp, (char *)dep - (char *)block));
+       blp[mid].hashval = cpu_to_be32(args->hashval);
+       blp[mid].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp,
+                               (char *)dep - (char *)block));
        xfs_dir2_block_log_leaf(tp, bp, lfloglow, lfloghigh);
        /*
         * Mark space for the data entry used.
@@ -399,17 +409,16 @@ xfs_dir2_block_addname(
        /*
         * Create the new data entry.
         */
-       INT_SET(dep->inumber, ARCH_CONVERT, args->inumber);
+       dep->inumber = cpu_to_be64(args->inumber);
        dep->namelen = args->namelen;
        memcpy(dep->name, args->name, args->namelen);
-       tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep);
-       INT_SET(*tagp, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dep - (char *)block));
+       tagp = xfs_dir2_data_entry_tag_p(dep);
+       *tagp = cpu_to_be16((char *)dep - (char *)block);
        /*
         * Clean up the bestfree array and log the header, tail, and entry.
         */
        if (needscan)
-               xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block, &needlog,
-                       NULL);
+               xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block, &needlog);
        if (needlog)
                xfs_dir2_data_log_header(tp, bp);
        xfs_dir2_block_log_tail(tp, bp);
@@ -424,12 +433,10 @@ xfs_dir2_block_addname(
  */
 int                                            /* error */
 xfs_dir2_block_getdents(
-       xfs_trans_t             *tp,            /* transaction (NULL) */
        xfs_inode_t             *dp,            /* incore inode */
-       uio_t                   *uio,           /* caller's buffer control */
-       int                     *eofp,          /* eof reached? (out) */
-       xfs_dirent_t            *dbp,           /* caller's buffer */
-       xfs_dir2_put_t          put)            /* abi's formatting function */
+       void                    *dirent,
+       xfs_off_t               *offset,
+       filldir_t               filldir)
 {
        xfs_dir2_block_t        *block;         /* directory block structure */
        xfs_dabuf_t             *bp;            /* buffer for block */
@@ -439,42 +446,41 @@ xfs_dir2_block_getdents(
        char                    *endptr;        /* end of the data entries */
        int                     error;          /* error return value */
        xfs_mount_t             *mp;            /* filesystem mount point */
-       xfs_dir2_put_args_t     p;              /* arg package for put rtn */
        char                    *ptr;           /* current data entry */
        int                     wantoff;        /* starting block offset */
+       xfs_ino_t               ino;
+       xfs_off_t               cook;
 
        mp = dp->i_mount;
        /*
         * If the block number in the offset is out of range, we're done.
         */
-       if (XFS_DIR2_DATAPTR_TO_DB(mp, uio->uio_offset) > mp->m_dirdatablk) {
-               *eofp = 1;
+       if (xfs_dir2_dataptr_to_db(mp, *offset) > mp->m_dirdatablk) {
                return 0;
        }
        /*
         * Can't read the block, give up, else get dabuf in bp.
         */
-       if ((error =
-           xfs_da_read_buf(tp, dp, mp->m_dirdatablk, -1, &bp, XFS_DATA_FORK))) {
+       error = xfs_da_read_buf(NULL, dp, mp->m_dirdatablk, -1,
+                               &bp, XFS_DATA_FORK);
+       if (error)
                return error;
-       }
+
        ASSERT(bp != NULL);
        /*
         * Extract the byte offset we start at from the seek pointer.
         * We'll skip entries before this.
         */
-       wantoff = XFS_DIR2_DATAPTR_TO_OFF(mp, uio->uio_offset);
+       wantoff = xfs_dir2_dataptr_to_off(mp, *offset);
        block = bp->data;
        xfs_dir2_data_check(dp, bp);
        /*
         * Set up values for the loop.
         */
-       btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
+       btp = xfs_dir2_block_tail_p(mp, block);
        ptr = (char *)block->u;
-       endptr = (char *)XFS_DIR2_BLOCK_LEAF_P(btp);
-       p.dbp = dbp;
-       p.put = put;
-       p.uio = uio;
+       endptr = (char *)xfs_dir2_block_leaf_p(btp);
+
        /*
         * Loop over the data portion of the block.
         * Each object is a real entry (dep) or an unused one (dup).
@@ -484,8 +490,8 @@ xfs_dir2_block_getdents(
                /*
                 * Unused, skip it.
                 */
-               if (INT_GET(dup->freetag, ARCH_CONVERT) == XFS_DIR2_DATA_FREE_TAG) {
-                       ptr += INT_GET(dup->length, ARCH_CONVERT);
+               if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG) {
+                       ptr += be16_to_cpu(dup->length);
                        continue;
                }
 
@@ -494,53 +500,38 @@ xfs_dir2_block_getdents(
                /*
                 * Bump pointer for the next iteration.
                 */
-               ptr += XFS_DIR2_DATA_ENTSIZE(dep->namelen);
+               ptr += xfs_dir2_data_entsize(dep->namelen);
                /*
                 * The entry is before the desired starting point, skip it.
                 */
                if ((char *)dep - (char *)block < wantoff)
                        continue;
-               /*
-                * Set up argument structure for put routine.
-                */
-               p.namelen = dep->namelen;
 
-               p.cook = XFS_DIR2_DB_OFF_TO_DATAPTR(mp, mp->m_dirdatablk,
-                                                   ptr - (char *)block);
-               p.ino = INT_GET(dep->inumber, ARCH_CONVERT);
+               cook = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
+                                           (char *)dep - (char *)block);
+               ino = be64_to_cpu(dep->inumber);
 #if XFS_BIG_INUMS
-               p.ino += mp->m_inoadd;
+               ino += mp->m_inoadd;
 #endif
-               p.name = (char *)dep->name;
-
-               /*
-                * Put the entry in the caller's buffer.
-                */
-               error = p.put(&p);
 
                /*
                 * If it didn't fit, set the final offset to here & return.
                 */
-               if (!p.done) {
-                       uio->uio_offset =
-                               XFS_DIR2_DB_OFF_TO_DATAPTR(mp, mp->m_dirdatablk,
-                                       (char *)dep - (char *)block);
-                       xfs_da_brelse(tp, bp);
-                       return error;
+               if (filldir(dirent, dep->name, dep->namelen, cook & 0x7fffffff,
+                           ino, DT_UNKNOWN)) {
+                       *offset = cook & 0x7fffffff;
+                       xfs_da_brelse(NULL, bp);
+                       return 0;
                }
        }
 
        /*
         * Reached the end of the block.
-        * Set the offset to a nonexistent block 1 and return.
+        * Set the offset to a non-existent block 1 and return.
         */
-       *eofp = 1;
-
-       uio->uio_offset =
-               XFS_DIR2_DB_OFF_TO_DATAPTR(mp, mp->m_dirdatablk + 1, 0);
-
-       xfs_da_brelse(tp, bp);
-
+       *offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk + 1, 0) &
+                       0x7fffffff;
+       xfs_da_brelse(NULL, bp);
        return 0;
 }
 
@@ -561,8 +552,8 @@ xfs_dir2_block_log_leaf(
 
        mp = tp->t_mountp;
        block = bp->data;
-       btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
-       blp = XFS_DIR2_BLOCK_LEAF_P(btp);
+       btp = xfs_dir2_block_tail_p(mp, block);
+       blp = xfs_dir2_block_leaf_p(btp);
        xfs_da_log_buf(tp, bp, (uint)((char *)&blp[first] - (char *)block),
                (uint)((char *)&blp[last + 1] - (char *)block - 1));
 }
@@ -581,7 +572,7 @@ xfs_dir2_block_log_tail(
 
        mp = tp->t_mountp;
        block = bp->data;
-       btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
+       btp = xfs_dir2_block_tail_p(mp, block);
        xfs_da_log_buf(tp, bp, (uint)((char *)btp - (char *)block),
                (uint)((char *)(btp + 1) - (char *)block - 1));
 }
@@ -615,19 +606,20 @@ xfs_dir2_block_lookup(
        mp = dp->i_mount;
        block = bp->data;
        xfs_dir2_data_check(dp, bp);
-       btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
-       blp = XFS_DIR2_BLOCK_LEAF_P(btp);
+       btp = xfs_dir2_block_tail_p(mp, block);
+       blp = xfs_dir2_block_leaf_p(btp);
        /*
         * Get the offset from the leaf entry, to point to the data.
         */
-       dep = (xfs_dir2_data_entry_t *)
-             ((char *)block + XFS_DIR2_DATAPTR_TO_OFF(mp, INT_GET(blp[ent].address, ARCH_CONVERT)));
+       dep = (xfs_dir2_data_entry_t *)((char *)block +
+               xfs_dir2_dataptr_to_off(mp, be32_to_cpu(blp[ent].address)));
        /*
-        * Fill in inode number, release the block.
+        * Fill in inode number, CI name if appropriate, release the block.
         */
-       args->inumber = INT_GET(dep->inumber, ARCH_CONVERT);
+       args->inumber = be64_to_cpu(dep->inumber);
+       error = xfs_dir_cilookup_result(args, dep->name, dep->namelen);
        xfs_da_brelse(args->trans, bp);
-       return XFS_ERROR(EEXIST);
+       return XFS_ERROR(error);
 }
 
 /*
@@ -653,6 +645,7 @@ xfs_dir2_block_lookup_int(
        int                     mid;            /* binary search current idx */
        xfs_mount_t             *mp;            /* filesystem mount point */
        xfs_trans_t             *tp;            /* transaction pointer */
+       enum xfs_dacmp          cmp;            /* comparison result */
 
        dp = args->dp;
        tp = args->trans;
@@ -667,23 +660,23 @@ xfs_dir2_block_lookup_int(
        ASSERT(bp != NULL);
        block = bp->data;
        xfs_dir2_data_check(dp, bp);
-       btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
-       blp = XFS_DIR2_BLOCK_LEAF_P(btp);
+       btp = xfs_dir2_block_tail_p(mp, block);
+       blp = xfs_dir2_block_leaf_p(btp);
        /*
         * Loop doing a binary search for our hash value.
         * Find our entry, ENOENT if it's not there.
         */
-       for (low = 0, high = INT_GET(btp->count, ARCH_CONVERT) - 1; ; ) {
+       for (low = 0, high = be32_to_cpu(btp->count) - 1; ; ) {
                ASSERT(low <= high);
                mid = (low + high) >> 1;
-               if ((hash = INT_GET(blp[mid].hashval, ARCH_CONVERT)) == args->hashval)
+               if ((hash = be32_to_cpu(blp[mid].hashval)) == args->hashval)
                        break;
                if (hash < args->hashval)
                        low = mid + 1;
                else
                        high = mid - 1;
                if (low > high) {
-                       ASSERT(args->oknoent);
+                       ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
                        xfs_da_brelse(tp, bp);
                        return XFS_ERROR(ENOENT);
                }
@@ -691,7 +684,7 @@ xfs_dir2_block_lookup_int(
        /*
         * Back up to the first one with the right hash value.
         */
-       while (mid > 0 && INT_GET(blp[mid - 1].hashval, ARCH_CONVERT) == args->hashval) {
+       while (mid > 0 && be32_to_cpu(blp[mid - 1].hashval) == args->hashval) {
                mid--;
        }
        /*
@@ -699,28 +692,39 @@ xfs_dir2_block_lookup_int(
         * right hash value looking for our name.
         */
        do {
-               if ((addr = INT_GET(blp[mid].address, ARCH_CONVERT)) == XFS_DIR2_NULL_DATAPTR)
+               if ((addr = be32_to_cpu(blp[mid].address)) == XFS_DIR2_NULL_DATAPTR)
                        continue;
                /*
                 * Get pointer to the entry from the leaf.
                 */
                dep = (xfs_dir2_data_entry_t *)
-                       ((char *)block + XFS_DIR2_DATAPTR_TO_OFF(mp, addr));
+                       ((char *)block + xfs_dir2_dataptr_to_off(mp, addr));
                /*
-                * Compare, if it's right give back buffer & entry number.
+                * Compare name and if it's an exact match, return the index
+                * and buffer. If it's the first case-insensitive match, store
+                * the index and buffer and continue looking for an exact match.
                 */
-               if (dep->namelen == args->namelen &&
-                   dep->name[0] == args->name[0] &&
-                   memcmp(dep->name, args->name, args->namelen) == 0) {
+               cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen);
+               if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) {
+                       args->cmpresult = cmp;
                        *bpp = bp;
                        *entno = mid;
-                       return 0;
+                       if (cmp == XFS_CMP_EXACT)
+                               return 0;
                }
-       } while (++mid < INT_GET(btp->count, ARCH_CONVERT) && INT_GET(blp[mid].hashval, ARCH_CONVERT) == hash);
+       } while (++mid < be32_to_cpu(btp->count) &&
+                       be32_to_cpu(blp[mid].hashval) == hash);
+
+       ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
+       /*
+        * Here, we can only be doing a lookup (not a rename or replace).
+        * If a case-insensitive match was found earlier, return success.
+        */
+       if (args->cmpresult == XFS_CMP_CASE)
+               return 0;
        /*
         * No match, release the buffer and return ENOENT.
         */
-       ASSERT(args->oknoent);
        xfs_da_brelse(tp, bp);
        return XFS_ERROR(ENOENT);
 }
@@ -760,36 +764,35 @@ xfs_dir2_block_removename(
        tp = args->trans;
        mp = dp->i_mount;
        block = bp->data;
-       btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
-       blp = XFS_DIR2_BLOCK_LEAF_P(btp);
+       btp = xfs_dir2_block_tail_p(mp, block);
+       blp = xfs_dir2_block_leaf_p(btp);
        /*
         * Point to the data entry using the leaf entry.
         */
        dep = (xfs_dir2_data_entry_t *)
-             ((char *)block + XFS_DIR2_DATAPTR_TO_OFF(mp, INT_GET(blp[ent].address, ARCH_CONVERT)));
+             ((char *)block + xfs_dir2_dataptr_to_off(mp, be32_to_cpu(blp[ent].address)));
        /*
         * Mark the data entry's space free.
         */
        needlog = needscan = 0;
        xfs_dir2_data_make_free(tp, bp,
                (xfs_dir2_data_aoff_t)((char *)dep - (char *)block),
-               XFS_DIR2_DATA_ENTSIZE(dep->namelen), &needlog, &needscan);
+               xfs_dir2_data_entsize(dep->namelen), &needlog, &needscan);
        /*
         * Fix up the block tail.
         */
-       INT_MOD(btp->stale, ARCH_CONVERT, +1);
+       be32_add_cpu(&btp->stale, 1);
        xfs_dir2_block_log_tail(tp, bp);
        /*
         * Remove the leaf entry by marking it stale.
         */
-       INT_SET(blp[ent].address, ARCH_CONVERT, XFS_DIR2_NULL_DATAPTR);
+       blp[ent].address = cpu_to_be32(XFS_DIR2_NULL_DATAPTR);
        xfs_dir2_block_log_leaf(tp, bp, ent, ent);
        /*
         * Fix up bestfree, log the header if necessary.
         */
        if (needscan)
-               xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block, &needlog,
-                       NULL);
+               xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block, &needlog);
        if (needlog)
                xfs_dir2_data_log_header(tp, bp);
        xfs_dir2_data_check(dp, bp);
@@ -836,18 +839,18 @@ xfs_dir2_block_replace(
        dp = args->dp;
        mp = dp->i_mount;
        block = bp->data;
-       btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
-       blp = XFS_DIR2_BLOCK_LEAF_P(btp);
+       btp = xfs_dir2_block_tail_p(mp, block);
+       blp = xfs_dir2_block_leaf_p(btp);
        /*
         * Point to the data entry we need to change.
         */
        dep = (xfs_dir2_data_entry_t *)
-             ((char *)block + XFS_DIR2_DATAPTR_TO_OFF(mp, INT_GET(blp[ent].address, ARCH_CONVERT)));
-       ASSERT(INT_GET(dep->inumber, ARCH_CONVERT) != args->inumber);
+             ((char *)block + xfs_dir2_dataptr_to_off(mp, be32_to_cpu(blp[ent].address)));
+       ASSERT(be64_to_cpu(dep->inumber) != args->inumber);
        /*
         * Change the inode number to the new value.
         */
-       INT_SET(dep->inumber, ARCH_CONVERT, args->inumber);
+       dep->inumber = cpu_to_be64(args->inumber);
        xfs_dir2_data_log_entry(args->trans, bp, dep);
        xfs_dir2_data_check(dp, bp);
        xfs_da_buf_done(bp);
@@ -867,8 +870,8 @@ xfs_dir2_block_sort(
 
        la = a;
        lb = b;
-       return INT_GET(la->hashval, ARCH_CONVERT) < INT_GET(lb->hashval, ARCH_CONVERT) ? -1 :
-               (INT_GET(la->hashval, ARCH_CONVERT) > INT_GET(lb->hashval, ARCH_CONVERT) ? 1 : 0);
+       return be32_to_cpu(la->hashval) < be32_to_cpu(lb->hashval) ? -1 :
+               (be32_to_cpu(la->hashval) > be32_to_cpu(lb->hashval) ? 1 : 0);
 }
 
 /*
@@ -895,7 +898,7 @@ xfs_dir2_leaf_to_block(
        int                     needscan;       /* need to scan for bestfree */
        xfs_dir2_sf_hdr_t       sfh;            /* shortform header */
        int                     size;           /* bytes used */
-       xfs_dir2_data_off_t     *tagp;          /* end of entry (tag) */
+       __be16                  *tagp;          /* end of entry (tag) */
        int                     to;             /* block/leaf to index */
        xfs_trans_t             *tp;            /* transaction pointer */
 
@@ -904,8 +907,8 @@ xfs_dir2_leaf_to_block(
        tp = args->trans;
        mp = dp->i_mount;
        leaf = lbp->data;
-       ASSERT(INT_GET(leaf->hdr.info.magic, ARCH_CONVERT) == XFS_DIR2_LEAF1_MAGIC);
-       ltp = XFS_DIR2_LEAF_TAIL_P(mp, leaf);
+       ASSERT(be16_to_cpu(leaf->hdr.info.magic) == XFS_DIR2_LEAF1_MAGIC);
+       ltp = xfs_dir2_leaf_tail_p(mp, leaf);
        /*
         * If there are data blocks other than the first one, take this
         * opportunity to remove trailing empty data blocks that may have
@@ -913,7 +916,7 @@ xfs_dir2_leaf_to_block(
         * These will show up in the leaf bests table.
         */
        while (dp->i_d.di_size > mp->m_dirblksize) {
-               bestsp = XFS_DIR2_LEAF_BESTS_P(ltp);
+               bestsp = xfs_dir2_leaf_bests_p(ltp);
                if (be16_to_cpu(bestsp[be32_to_cpu(ltp->bestcount) - 1]) ==
                    mp->m_dirblksize - (uint)sizeof(block->hdr)) {
                        if ((error =
@@ -939,16 +942,17 @@ xfs_dir2_leaf_to_block(
         * Size of the "leaf" area in the block.
         */
        size = (uint)sizeof(block->tail) +
-              (uint)sizeof(*lep) * (INT_GET(leaf->hdr.count, ARCH_CONVERT) - INT_GET(leaf->hdr.stale, ARCH_CONVERT));
+              (uint)sizeof(*lep) * (be16_to_cpu(leaf->hdr.count) - be16_to_cpu(leaf->hdr.stale));
        /*
         * Look at the last data entry.
         */
-       tagp = (xfs_dir2_data_off_t *)((char *)block + mp->m_dirblksize) - 1;
-       dup = (xfs_dir2_data_unused_t *)((char *)block + INT_GET(*tagp, ARCH_CONVERT));
+       tagp = (__be16 *)((char *)block + mp->m_dirblksize) - 1;
+       dup = (xfs_dir2_data_unused_t *)((char *)block + be16_to_cpu(*tagp));
        /*
         * If it's not free or is too short we can't do it.
         */
-       if (INT_GET(dup->freetag, ARCH_CONVERT) != XFS_DIR2_DATA_FREE_TAG || INT_GET(dup->length, ARCH_CONVERT) < size) {
+       if (be16_to_cpu(dup->freetag) != XFS_DIR2_DATA_FREE_TAG ||
+           be16_to_cpu(dup->length) < size) {
                error = 0;
                goto out;
        }
@@ -966,27 +970,26 @@ xfs_dir2_leaf_to_block(
        /*
         * Initialize the block tail.
         */
-       btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
-       INT_SET(btp->count, ARCH_CONVERT, INT_GET(leaf->hdr.count, ARCH_CONVERT) - INT_GET(leaf->hdr.stale, ARCH_CONVERT));
+       btp = xfs_dir2_block_tail_p(mp, block);
+       btp->count = cpu_to_be32(be16_to_cpu(leaf->hdr.count) - be16_to_cpu(leaf->hdr.stale));
        btp->stale = 0;
        xfs_dir2_block_log_tail(tp, dbp);
        /*
         * Initialize the block leaf area.  We compact out stale entries.
         */
-       lep = XFS_DIR2_BLOCK_LEAF_P(btp);
-       for (from = to = 0; from < INT_GET(leaf->hdr.count, ARCH_CONVERT); from++) {
-               if (INT_GET(leaf->ents[from].address, ARCH_CONVERT) == XFS_DIR2_NULL_DATAPTR)
+       lep = xfs_dir2_block_leaf_p(btp);
+       for (from = to = 0; from < be16_to_cpu(leaf->hdr.count); from++) {
+               if (be32_to_cpu(leaf->ents[from].address) == XFS_DIR2_NULL_DATAPTR)
                        continue;
                lep[to++] = leaf->ents[from];
        }
-       ASSERT(to == INT_GET(btp->count, ARCH_CONVERT));
-       xfs_dir2_block_log_leaf(tp, dbp, 0, INT_GET(btp->count, ARCH_CONVERT) - 1);
+       ASSERT(to == be32_to_cpu(btp->count));
+       xfs_dir2_block_log_leaf(tp, dbp, 0, be32_to_cpu(btp->count) - 1);
        /*
         * Scan the bestfree if we need it and log the data block header.
         */
        if (needscan)
-               xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block, &needlog,
-                       NULL);
+               xfs_dir2_data_freescan(mp, (xfs_dir2_data_t *)block, &needlog);
        if (needlog)
                xfs_dir2_data_log_header(tp, dbp);
        /*
@@ -1042,8 +1045,9 @@ xfs_dir2_sf_to_block(
        int                     offset;         /* target block offset */
        xfs_dir2_sf_entry_t     *sfep;          /* sf entry pointer */
        xfs_dir2_sf_t           *sfp;           /* shortform structure */
-       xfs_dir2_data_off_t     *tagp;          /* end of data entry */
+       __be16                  *tagp;          /* end of data entry */
        xfs_trans_t             *tp;            /* transaction pointer */
+       struct xfs_name         name;
 
        xfs_dir2_trace_args("sf_to_block", args);
        dp = args->dp;
@@ -1060,7 +1064,7 @@ xfs_dir2_sf_to_block(
        ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
        ASSERT(dp->i_df.if_u1.if_data != NULL);
        sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data;
-       ASSERT(dp->i_d.di_size >= XFS_DIR2_SF_HDR_SIZE(sfp->hdr.i8count));
+       ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->hdr.i8count));
        /*
         * Copy the directory into the stack buffer.
         * Then pitch the incore inode data so we can make extents.
@@ -1082,7 +1086,7 @@ xfs_dir2_sf_to_block(
         */
        error = xfs_dir2_grow_inode(args, XFS_DIR2_DATA_SPACE, &blkno);
        if (error) {
-               kmem_free(buf, buf_len);
+               kmem_free(buf);
                return error;
        }
        /*
@@ -1090,7 +1094,7 @@ xfs_dir2_sf_to_block(
         */
        error = xfs_dir2_data_init(args, blkno, &bp);
        if (error) {
-               kmem_free(buf, buf_len);
+               kmem_free(buf);
                return error;
        }
        block = bp->data;
@@ -1099,7 +1103,7 @@ xfs_dir2_sf_to_block(
         * Compute size of block "tail" area.
         */
        i = (uint)sizeof(*btp) +
-           (INT_GET(sfp->hdr.count, ARCH_CONVERT) + 2) * (uint)sizeof(xfs_dir2_leaf_entry_t);
+           (sfp->hdr.count + 2) * (uint)sizeof(xfs_dir2_leaf_entry_t);
        /*
         * The whole thing is initialized to free by the init routine.
         * Say we're using the leaf and tail area.
@@ -1112,51 +1116,53 @@ xfs_dir2_sf_to_block(
        /*
         * Fill in the tail.
         */
-       btp = XFS_DIR2_BLOCK_TAIL_P(mp, block);
-       INT_SET(btp->count, ARCH_CONVERT, INT_GET(sfp->hdr.count, ARCH_CONVERT) + 2);   /* ., .. */
+       btp = xfs_dir2_block_tail_p(mp, block);
+       btp->count = cpu_to_be32(sfp->hdr.count + 2);   /* ., .. */
        btp->stale = 0;
-       blp = XFS_DIR2_BLOCK_LEAF_P(btp);
+       blp = xfs_dir2_block_leaf_p(btp);
        endoffset = (uint)((char *)blp - (char *)block);
        /*
         * Remove the freespace, we'll manage it.
         */
        xfs_dir2_data_use_free(tp, bp, dup,
                (xfs_dir2_data_aoff_t)((char *)dup - (char *)block),
-               INT_GET(dup->length, ARCH_CONVERT), &needlog, &needscan);
+               be16_to_cpu(dup->length), &needlog, &needscan);
        /*
         * Create entry for .
         */
        dep = (xfs_dir2_data_entry_t *)
              ((char *)block + XFS_DIR2_DATA_DOT_OFFSET);
-       INT_SET(dep->inumber, ARCH_CONVERT, dp->i_ino);
+       dep->inumber = cpu_to_be64(dp->i_ino);
        dep->namelen = 1;
        dep->name[0] = '.';
-       tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep);
-       INT_SET(*tagp, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dep - (char *)block));
+       tagp = xfs_dir2_data_entry_tag_p(dep);
+       *tagp = cpu_to_be16((char *)dep - (char *)block);
        xfs_dir2_data_log_entry(tp, bp, dep);
-       INT_SET(blp[0].hashval, ARCH_CONVERT, xfs_dir_hash_dot);
-       INT_SET(blp[0].address, ARCH_CONVERT, XFS_DIR2_BYTE_TO_DATAPTR(mp, (char *)dep - (char *)block));
+       blp[0].hashval = cpu_to_be32(xfs_dir_hash_dot);
+       blp[0].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp,
+                               (char *)dep - (char *)block));
        /*
         * Create entry for ..
         */
        dep = (xfs_dir2_data_entry_t *)
                ((char *)block + XFS_DIR2_DATA_DOTDOT_OFFSET);
-       INT_SET(dep->inumber, ARCH_CONVERT, XFS_DIR2_SF_GET_INUMBER(sfp, &sfp->hdr.parent));
+       dep->inumber = cpu_to_be64(xfs_dir2_sf_get_inumber(sfp, &sfp->hdr.parent));
        dep->namelen = 2;
        dep->name[0] = dep->name[1] = '.';
-       tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep);
-       INT_SET(*tagp, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dep - (char *)block));
+       tagp = xfs_dir2_data_entry_tag_p(dep);
+       *tagp = cpu_to_be16((char *)dep - (char *)block);
        xfs_dir2_data_log_entry(tp, bp, dep);
-       INT_SET(blp[1].hashval, ARCH_CONVERT, xfs_dir_hash_dotdot);
-       INT_SET(blp[1].address, ARCH_CONVERT, XFS_DIR2_BYTE_TO_DATAPTR(mp, (char *)dep - (char *)block));
+       blp[1].hashval = cpu_to_be32(xfs_dir_hash_dotdot);
+       blp[1].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp,
+                               (char *)dep - (char *)block));
        offset = XFS_DIR2_DATA_FIRST_OFFSET;
        /*
         * Loop over existing entries, stuff them in.
         */
-       if ((i = 0) == INT_GET(sfp->hdr.count, ARCH_CONVERT))
+       if ((i = 0) == sfp->hdr.count)
                sfep = NULL;
        else
-               sfep = XFS_DIR2_SF_FIRSTENTRY(sfp);
+               sfep = xfs_dir2_sf_firstentry(sfp);
        /*
         * Need to preserve the existing offset values in the sf directory.
         * Insert holes (unused entries) where necessary.
@@ -1168,56 +1174,58 @@ xfs_dir2_sf_to_block(
                if (sfep == NULL)
                        newoffset = endoffset;
                else
-                       newoffset = XFS_DIR2_SF_GET_OFFSET(sfep);
+                       newoffset = xfs_dir2_sf_get_offset(sfep);
                /*
                 * There should be a hole here, make one.
                 */
                if (offset < newoffset) {
                        dup = (xfs_dir2_data_unused_t *)
                              ((char *)block + offset);
-                       INT_SET(dup->freetag, ARCH_CONVERT, XFS_DIR2_DATA_FREE_TAG);
-                       INT_SET(dup->length, ARCH_CONVERT, newoffset - offset);
-                       INT_SET(*XFS_DIR2_DATA_UNUSED_TAG_P(dup), ARCH_CONVERT,
-                               (xfs_dir2_data_off_t)
+                       dup->freetag = cpu_to_be16(XFS_DIR2_DATA_FREE_TAG);
+                       dup->length = cpu_to_be16(newoffset - offset);
+                       *xfs_dir2_data_unused_tag_p(dup) = cpu_to_be16(
                                ((char *)dup - (char *)block));
                        xfs_dir2_data_log_unused(tp, bp, dup);
                        (void)xfs_dir2_data_freeinsert((xfs_dir2_data_t *)block,
                                dup, &dummy);
-                       offset += INT_GET(dup->length, ARCH_CONVERT);
+                       offset += be16_to_cpu(dup->length);
                        continue;
                }
                /*
                 * Copy a real entry.
                 */
                dep = (xfs_dir2_data_entry_t *)((char *)block + newoffset);
-               INT_SET(dep->inumber, ARCH_CONVERT, XFS_DIR2_SF_GET_INUMBER(sfp,
-                               XFS_DIR2_SF_INUMBERP(sfep)));
+               dep->inumber = cpu_to_be64(xfs_dir2_sf_get_inumber(sfp,
+                               xfs_dir2_sf_inumberp(sfep)));
                dep->namelen = sfep->namelen;
                memcpy(dep->name, sfep->name, dep->namelen);
-               tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep);
-               INT_SET(*tagp, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dep - (char *)block));
+               tagp = xfs_dir2_data_entry_tag_p(dep);
+               *tagp = cpu_to_be16((char *)dep - (char *)block);
                xfs_dir2_data_log_entry(tp, bp, dep);
-               INT_SET(blp[2 + i].hashval, ARCH_CONVERT, xfs_da_hashname((char *)sfep->name, sfep->namelen));
-               INT_SET(blp[2 + i].address, ARCH_CONVERT, XFS_DIR2_BYTE_TO_DATAPTR(mp,
+               name.name = sfep->name;
+               name.len = sfep->namelen;
+               blp[2 + i].hashval = cpu_to_be32(mp->m_dirnameops->
+                                                       hashname(&name));
+               blp[2 + i].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp,
                                                 (char *)dep - (char *)block));
                offset = (int)((char *)(tagp + 1) - (char *)block);
-               if (++i == INT_GET(sfp->hdr.count, ARCH_CONVERT))
+               if (++i == sfp->hdr.count)
                        sfep = NULL;
                else
-                       sfep = XFS_DIR2_SF_NEXTENTRY(sfp, sfep);
+                       sfep = xfs_dir2_sf_nextentry(sfp, sfep);
        }
        /* Done with the temporary buffer */
-       kmem_free(buf, buf_len);
+       kmem_free(buf);
        /*
         * Sort the leaf entries by hash value.
         */
-       xfs_sort(blp, INT_GET(btp->count, ARCH_CONVERT), sizeof(*blp), xfs_dir2_block_sort);
+       xfs_sort(blp, be32_to_cpu(btp->count), sizeof(*blp), xfs_dir2_block_sort);
        /*
         * Log the leaf entry area and tail.
         * Already logged the header in data_init, ignore needlog.
         */
        ASSERT(needscan == 0);
-       xfs_dir2_block_log_leaf(tp, bp, 0, INT_GET(btp->count, ARCH_CONVERT) - 1);
+       xfs_dir2_block_log_leaf(tp, bp, 0, be32_to_cpu(btp->count) - 1);
        xfs_dir2_block_log_tail(tp, bp);
        xfs_dir2_data_check(dp, bp);
        xfs_da_buf_done(bp);