[XFS] sort out opening and closing of the block devices

[linux-2.6-omap-h63xx.git] / fs / xfs / xfs_dir2.c

diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c
index be7c4251fa619e03a161cf3d66c60dd2e0518151..0284af1734bde05a1a78a4c48813230bc50cc4c3 100644 (file)
--- a/fs/xfs/xfs_dir2.c
+++ b/fs/xfs/xfs_dir2.c
@@ -44,12 +44,13 @@
 #include "xfs_error.h"
 #include "xfs_vnodeops.h"
 
+struct xfs_name xfs_name_dotdot = {"..", 2};
 
 void
 xfs_dir_mount(
        xfs_mount_t     *mp)
 {
-       ASSERT(XFS_SB_VERSION_HASDIRV2(&mp->m_sb));
+       ASSERT(xfs_sb_version_hasdirv2(&mp->m_sb));
        ASSERT((1 << (mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog)) <=
               XFS_MAX_BLOCKSIZE);
        mp->m_dirblksize = 1 << (mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog);
@@ -146,8 +147,7 @@ int
 xfs_dir_createname(
        xfs_trans_t             *tp,
        xfs_inode_t             *dp,
-       char                    *name,
-       int                     namelen,
+       struct xfs_name         *name,
        xfs_ino_t               inum,           /* new entry inode number */
        xfs_fsblock_t           *first,         /* bmap's firstblock */
        xfs_bmap_free_t         *flist,         /* bmap's freeblock list */
@@ -162,9 +162,9 @@ xfs_dir_createname(
                return rval;
        XFS_STATS_INC(xs_dir_create);
 
-       args.name = name;
-       args.namelen = namelen;
-       args.hashval = xfs_da_hashname(name, namelen);
+       args.name = name->name;
+       args.namelen = name->len;
+       args.hashval = xfs_da_hashname(name->name, name->len);
        args.inumber = inum;
        args.dp = dp;
        args.firstblock = first;
@@ -197,8 +197,7 @@ int
 xfs_dir_lookup(
        xfs_trans_t     *tp,
        xfs_inode_t     *dp,
-       char            *name,
-       int             namelen,
+       struct xfs_name *name,
        xfs_ino_t       *inum)          /* out: inode number */
 {
        xfs_da_args_t   args;
@@ -207,18 +206,14 @@ xfs_dir_lookup(
 
        ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
        XFS_STATS_INC(xs_dir_lookup);
+       memset(&args, 0, sizeof(xfs_da_args_t));
 
-       args.name = name;
-       args.namelen = namelen;
-       args.hashval = xfs_da_hashname(name, namelen);
-       args.inumber = 0;
+       args.name = name->name;
+       args.namelen = name->len;
+       args.hashval = xfs_da_hashname(name->name, name->len);
        args.dp = dp;
-       args.firstblock = NULL;
-       args.flist = NULL;
-       args.total = 0;
        args.whichfork = XFS_DATA_FORK;
        args.trans = tp;
-       args.justcheck = args.addname = 0;
        args.oknoent = 1;
 
        if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
@@ -247,8 +242,7 @@ int
 xfs_dir_removename(
        xfs_trans_t     *tp,
        xfs_inode_t     *dp,
-       char            *name,
-       int             namelen,
+       struct xfs_name *name,
        xfs_ino_t       ino,
        xfs_fsblock_t   *first,         /* bmap's firstblock */
        xfs_bmap_free_t *flist,         /* bmap's freeblock list */
@@ -261,9 +255,9 @@ xfs_dir_removename(
        ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
        XFS_STATS_INC(xs_dir_remove);
 
-       args.name = name;
-       args.namelen = namelen;
-       args.hashval = xfs_da_hashname(name, namelen);
+       args.name = name->name;
+       args.namelen = name->len;
+       args.hashval = xfs_da_hashname(name->name, name->len);
        args.inumber = ino;
        args.dp = dp;
        args.firstblock = first;
@@ -329,8 +323,7 @@ int
 xfs_dir_replace(
        xfs_trans_t     *tp,
        xfs_inode_t     *dp,
-       char            *name,          /* name of entry to replace */
-       int             namelen,
+       struct xfs_name *name,          /* name of entry to replace */
        xfs_ino_t       inum,           /* new inode number */
        xfs_fsblock_t   *first,         /* bmap's firstblock */
        xfs_bmap_free_t *flist,         /* bmap's freeblock list */
@@ -345,9 +338,9 @@ xfs_dir_replace(
        if ((rval = xfs_dir_ino_validate(tp->t_mountp, inum)))
                return rval;
 
-       args.name = name;
-       args.namelen = namelen;
-       args.hashval = xfs_da_hashname(name, namelen);
+       args.name = name->name;
+       args.namelen = name->len;
+       args.hashval = xfs_da_hashname(name->name, name->len);
        args.inumber = inum;
        args.dp = dp;
        args.firstblock = first;
@@ -374,28 +367,29 @@ xfs_dir_replace(
 
 /*
  * See if this entry can be added to the directory without allocating space.
+ * First checks that the caller couldn't reserve enough space (resblks = 0).
  */
 int
 xfs_dir_canenter(
        xfs_trans_t     *tp,
        xfs_inode_t     *dp,
-       char            *name,          /* name of entry to add */
-       int             namelen)
+       struct xfs_name *name,          /* name of entry to add */
+       uint            resblks)
 {
        xfs_da_args_t   args;
        int             rval;
        int             v;              /* type-checking value */
 
+       if (resblks)
+               return 0;
+
        ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+       memset(&args, 0, sizeof(xfs_da_args_t));
 
-       args.name = name;
-       args.namelen = namelen;
-       args.hashval = xfs_da_hashname(name, namelen);
-       args.inumber = 0;
+       args.name = name->name;
+       args.namelen = name->len;
+       args.hashval = xfs_da_hashname(name->name, name->len);
        args.dp = dp;
-       args.firstblock = NULL;
-       args.flist = NULL;
-       args.total = 0;
        args.whichfork = XFS_DATA_FORK;
        args.trans = tp;
        args.justcheck = args.addname = args.oknoent = 1;
@@ -499,7 +493,7 @@ xfs_dir2_grow_inode(
                                        args->firstblock, args->total,
                                        &mapp[mapi], &nmap, args->flist,
                                        NULL))) {
-                               kmem_free(mapp, sizeof(*mapp) * count);
+                               kmem_free(mapp);
                                return error;
                        }
                        if (nmap < 1)
@@ -531,14 +525,14 @@ xfs_dir2_grow_inode(
            mapp[mapi - 1].br_startoff + mapp[mapi - 1].br_blockcount !=
            bno + count) {
                if (mapp != &map)
-                       kmem_free(mapp, sizeof(*mapp) * count);
+                       kmem_free(mapp);
                return XFS_ERROR(ENOSPC);
        }
        /*
         * Done with the temporary mapping table.
         */
        if (mapp != &map)
-               kmem_free(mapp, sizeof(*mapp) * count);
+               kmem_free(mapp);
        *dbp = xfs_dir2_da_to_db(mp, (xfs_dablk_t)bno);
        /*
         * Update file's size if this is the data space and it grew.