Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block
[safe/jmp/linux-2.6] / fs / xfs / xfs_dir2_sf.c
index 182c703..e89734e 100644 (file)
@@ -255,7 +255,7 @@ xfs_dir2_block_to_sf(
        xfs_dir2_sf_check(args);
 out:
        xfs_trans_log_inode(args->trans, dp, logflags);
-       kmem_free(block, mp->m_dirblksize);
+       kmem_free(block);
        return error;
 }
 
@@ -332,7 +332,7 @@ xfs_dir2_sf_addname(
                /*
                 * Just checking or no space reservation, it doesn't fit.
                 */
-               if (args->justcheck || args->total == 0)
+               if ((args->op_flags & XFS_DA_OP_JUSTCHECK) || args->total == 0)
                        return XFS_ERROR(ENOSPC);
                /*
                 * Convert to block form then add the name.
@@ -345,7 +345,7 @@ xfs_dir2_sf_addname(
        /*
         * Just checking, it fits.
         */
-       if (args->justcheck)
+       if (args->op_flags & XFS_DA_OP_JUSTCHECK)
                return 0;
        /*
         * Do it the easy way - just add it at the end.
@@ -512,7 +512,7 @@ xfs_dir2_sf_addname_hard(
                sfep = xfs_dir2_sf_nextentry(sfp, sfep);
                memcpy(sfep, oldsfep, old_isize - nbytes);
        }
-       kmem_free(buf, old_isize);
+       kmem_free(buf);
        dp->i_d.di_size = new_isize;
        xfs_dir2_sf_check(args);
 }
@@ -748,12 +748,8 @@ xfs_dir2_sf_getdents(
         * Put . entry unless we're starting past it.
         */
        if (*offset <= dot_offset) {
-               ino = dp->i_ino;
-#if XFS_BIG_INUMS
-               ino += mp->m_inoadd;
-#endif
-               if (filldir(dirent, ".", 1, dotdot_offset, ino, DT_DIR)) {
-                       *offset = dot_offset;
+               if (filldir(dirent, ".", 1, dot_offset & 0x7fffffff, dp->i_ino, DT_DIR)) {
+                       *offset = dot_offset & 0x7fffffff;
                        return 0;
                }
        }
@@ -762,14 +758,9 @@ xfs_dir2_sf_getdents(
         * Put .. entry unless we're starting past it.
         */
        if (*offset <= dotdot_offset) {
-               off = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
-                                                 XFS_DIR2_DATA_FIRST_OFFSET);
                ino = xfs_dir2_sf_get_inumber(sfp, &sfp->hdr.parent);
-#if XFS_BIG_INUMS
-               ino += mp->m_inoadd;
-#endif
-               if (filldir(dirent, "..", 2, off, ino, DT_DIR)) {
-                       *offset = dotdot_offset;
+               if (filldir(dirent, "..", 2, dotdot_offset & 0x7fffffff, ino, DT_DIR)) {
+                       *offset = dotdot_offset & 0x7fffffff;
                        return 0;
                }
        }
@@ -788,20 +779,16 @@ xfs_dir2_sf_getdents(
                }
 
                ino = xfs_dir2_sf_get_inumber(sfp, xfs_dir2_sf_inumberp(sfep));
-#if XFS_BIG_INUMS
-               ino += mp->m_inoadd;
-#endif
-
                if (filldir(dirent, sfep->name, sfep->namelen,
-                           off + xfs_dir2_data_entsize(sfep->namelen),
-                           ino, DT_UNKNOWN)) {
-                       *offset = off;
+                           off & 0x7fffffff, ino, DT_UNKNOWN)) {
+                       *offset = off & 0x7fffffff;
                        return 0;
                }
                sfep = xfs_dir2_sf_nextentry(sfp, sfep);
        }
 
-       *offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk + 1, 0);
+       *offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk + 1, 0) &
+                       0x7fffffff;
        return 0;
 }
 
@@ -815,8 +802,11 @@ xfs_dir2_sf_lookup(
 {
        xfs_inode_t             *dp;            /* incore directory inode */
        int                     i;              /* entry index */
+       int                     error;
        xfs_dir2_sf_entry_t     *sfep;          /* shortform directory entry */
        xfs_dir2_sf_t           *sfp;           /* shortform structure */
+       enum xfs_dacmp          cmp;            /* comparison result */
+       xfs_dir2_sf_entry_t     *ci_sfep;       /* case-insens. entry */
 
        xfs_dir2_trace_args("sf_lookup", args);
        xfs_dir2_sf_check(args);
@@ -839,6 +829,7 @@ xfs_dir2_sf_lookup(
         */
        if (args->namelen == 1 && args->name[0] == '.') {
                args->inumber = dp->i_ino;
+               args->cmpresult = XFS_CMP_EXACT;
                return XFS_ERROR(EEXIST);
        }
        /*
@@ -847,28 +838,41 @@ xfs_dir2_sf_lookup(
        if (args->namelen == 2 &&
            args->name[0] == '.' && args->name[1] == '.') {
                args->inumber = xfs_dir2_sf_get_inumber(sfp, &sfp->hdr.parent);
+               args->cmpresult = XFS_CMP_EXACT;
                return XFS_ERROR(EEXIST);
        }
        /*
         * Loop over all the entries trying to match ours.
         */
-       for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp);
-            i < sfp->hdr.count;
-            i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
-               if (sfep->namelen == args->namelen &&
-                   sfep->name[0] == args->name[0] &&
-                   memcmp(args->name, sfep->name, args->namelen) == 0) {
-                       args->inumber =
-                               xfs_dir2_sf_get_inumber(sfp,
-                                       xfs_dir2_sf_inumberp(sfep));
-                       return XFS_ERROR(EEXIST);
+       ci_sfep = NULL;
+       for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->hdr.count;
+                               i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
+               /*
+                * Compare name and if it's an exact match, return the inode
+                * number. If it's the first case-insensitive match, store the
+                * inode number and continue looking for an exact match.
+                */
+               cmp = dp->i_mount->m_dirnameops->compname(args, sfep->name,
+                                                               sfep->namelen);
+               if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) {
+                       args->cmpresult = cmp;
+                       args->inumber = xfs_dir2_sf_get_inumber(sfp,
+                                               xfs_dir2_sf_inumberp(sfep));
+                       if (cmp == XFS_CMP_EXACT)
+                               return XFS_ERROR(EEXIST);
+                       ci_sfep = sfep;
                }
        }
+       ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
        /*
-        * Didn't find it.
+        * Here, we can only be doing a lookup (not a rename or replace).
+        * If a case-insensitive match was not found, return ENOENT.
         */
-       ASSERT(args->oknoent);
-       return XFS_ERROR(ENOENT);
+       if (!ci_sfep)
+               return XFS_ERROR(ENOENT);
+       /* otherwise process the CI match as required by the caller */
+       error = xfs_dir_cilookup_result(args, ci_sfep->name, ci_sfep->namelen);
+       return XFS_ERROR(error);
 }
 
 /*
@@ -907,24 +911,21 @@ xfs_dir2_sf_removename(
         * Loop over the old directory entries.
         * Find the one we're deleting.
         */
-       for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp);
-            i < sfp->hdr.count;
-            i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
-               if (sfep->namelen == args->namelen &&
-                   sfep->name[0] == args->name[0] &&
-                   memcmp(sfep->name, args->name, args->namelen) == 0) {
+       for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->hdr.count;
+                               i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
+               if (xfs_da_compname(args, sfep->name, sfep->namelen) ==
+                                                               XFS_CMP_EXACT) {
                        ASSERT(xfs_dir2_sf_get_inumber(sfp,
-                                       xfs_dir2_sf_inumberp(sfep)) ==
-                               args->inumber);
+                                               xfs_dir2_sf_inumberp(sfep)) ==
+                                                               args->inumber);
                        break;
                }
        }
        /*
         * Didn't find it.
         */
-       if (i == sfp->hdr.count) {
+       if (i == sfp->hdr.count)
                return XFS_ERROR(ENOENT);
-       }
        /*
         * Calculate sizes.
         */
@@ -1045,11 +1046,10 @@ xfs_dir2_sf_replace(
         */
        else {
                for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp);
-                    i < sfp->hdr.count;
-                    i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
-                       if (sfep->namelen == args->namelen &&
-                           sfep->name[0] == args->name[0] &&
-                           memcmp(args->name, sfep->name, args->namelen) == 0) {
+                               i < sfp->hdr.count;
+                               i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
+                       if (xfs_da_compname(args, sfep->name, sfep->namelen) ==
+                                                               XFS_CMP_EXACT) {
 #if XFS_BIG_INUMS || defined(DEBUG)
                                ino = xfs_dir2_sf_get_inumber(sfp,
                                        xfs_dir2_sf_inumberp(sfep));
@@ -1064,7 +1064,7 @@ xfs_dir2_sf_replace(
                 * Didn't find it.
                 */
                if (i == sfp->hdr.count) {
-                       ASSERT(args->oknoent);
+                       ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
 #if XFS_BIG_INUMS
                        if (i8elevated)
                                xfs_dir2_sf_toino4(args);
@@ -1177,7 +1177,7 @@ xfs_dir2_sf_toino4(
        /*
         * Clean up the inode.
         */
-       kmem_free(buf, oldsize);
+       kmem_free(buf);
        dp->i_d.di_size = newsize;
        xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA);
 }
@@ -1254,7 +1254,7 @@ xfs_dir2_sf_toino8(
        /*
         * Clean up the inode.
         */
-       kmem_free(buf, oldsize);
+       kmem_free(buf);
        dp->i_d.di_size = newsize;
        xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA);
 }