Merge branch 'ext3-latency-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git...

[mv-sheeva.git] / fs / ext3 / namei.c

diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index ab98a66ab8c76b15c0b68f68dfbcf0f0f8d64fd4..6ff7b9730234bd97f2a67a1d01b08692630549ba 100644 (file)
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -161,12 +161,12 @@ static struct dx_frame *dx_probe(struct qstr *entry,
                                 struct dx_frame *frame,
                                 int *err);
 static void dx_release (struct dx_frame *frames);
-static int dx_make_map (struct ext3_dir_entry_2 *de, int size,
+static int dx_make_map(struct ext3_dir_entry_2 *de, unsigned blocksize,
                        struct dx_hash_info *hinfo, struct dx_map_entry map[]);
 static void dx_sort_map(struct dx_map_entry *map, unsigned count);
 static struct ext3_dir_entry_2 *dx_move_dirents (char *from, char *to,
                struct dx_map_entry *offsets, int count);
-static struct ext3_dir_entry_2* dx_pack_dirents (char *base, int size);
+static struct ext3_dir_entry_2 *dx_pack_dirents(char *base, unsigned blocksize);
 static void dx_insert_block (struct dx_frame *frame, u32 hash, u32 block);
 static int ext3_htree_next_block(struct inode *dir, __u32 hash,
                                 struct dx_frame *frame,
@@ -708,14 +708,14 @@ errout:
  * Create map of hash values, offsets, and sizes, stored at end of block.
  * Returns number of entries mapped.
  */
-static int dx_make_map (struct ext3_dir_entry_2 *de, int size,
-                       struct dx_hash_info *hinfo, struct dx_map_entry *map_tail)
+static int dx_make_map(struct ext3_dir_entry_2 *de, unsigned blocksize,
+               struct dx_hash_info *hinfo, struct dx_map_entry *map_tail)
 {
        int count = 0;
        char *base = (char *) de;
        struct dx_hash_info h = *hinfo;
 
-       while ((char *) de < base + size)
+       while ((char *) de < base + blocksize)
        {
                if (de->name_len && de->inode) {
                        ext3fs_dirhash(de->name, de->name_len, &h);
@@ -1047,8 +1047,16 @@ static struct dentry *ext3_lookup(struct inode * dir, struct dentry *dentry, str
                        return ERR_PTR(-EIO);
                }
                inode = ext3_iget(dir->i_sb, ino);
-               if (IS_ERR(inode))
-                       return ERR_CAST(inode);
+               if (unlikely(IS_ERR(inode))) {
+                       if (PTR_ERR(inode) == -ESTALE) {
+                               ext3_error(dir->i_sb, __func__,
+                                               "deleted inode referenced: %lu",
+                                               ino);
+                               return ERR_PTR(-EIO);
+                       } else {
+                               return ERR_CAST(inode);
+                       }
+               }
        }
        return d_splice_alias(inode, dentry);
 }
@@ -1120,13 +1128,14 @@ dx_move_dirents(char *from, char *to, struct dx_map_entry *map, int count)
  * Compact each dir entry in the range to the minimal rec_len.
  * Returns pointer to last entry in range.
  */
-static struct ext3_dir_entry_2* dx_pack_dirents(char *base, int size)
+static struct ext3_dir_entry_2 *dx_pack_dirents(char *base, unsigned blocksize)
 {
-       struct ext3_dir_entry_2 *next, *to, *prev, *de = (struct ext3_dir_entry_2 *) base;
+       struct ext3_dir_entry_2 *next, *to, *prev;
+       struct ext3_dir_entry_2 *de = (struct ext3_dir_entry_2 *)base;
        unsigned rec_len = 0;
 
        prev = to = de;
-       while ((char*)de < base + size) {
+       while ((char *)de < base + blocksize) {
                next = ext3_next_entry(de);
                if (de->inode && de->name_len) {
                        rec_len = EXT3_DIR_REC_LEN(de->name_len);
@@ -2049,7 +2058,7 @@ static int ext3_rmdir (struct inode * dir, struct dentry *dentry)
 
        /* Initialize quotas before so that eventual writes go in
         * separate transaction */
-       DQUOT_INIT(dentry->d_inode);
+       vfs_dq_init(dentry->d_inode);
        handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS(dir->i_sb));
        if (IS_ERR(handle))
                return PTR_ERR(handle);
@@ -2108,7 +2117,7 @@ static int ext3_unlink(struct inode * dir, struct dentry *dentry)
 
        /* Initialize quotas before so that eventual writes go
         * in separate transaction */
-       DQUOT_INIT(dentry->d_inode);
+       vfs_dq_init(dentry->d_inode);
        handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS(dir->i_sb));
        if (IS_ERR(handle))
                return PTR_ERR(handle);
@@ -2272,7 +2281,7 @@ static int ext3_rename (struct inode * old_dir, struct dentry *old_dentry,
        /* Initialize quotas before so that eventual writes go
         * in separate transaction */
        if (new_dentry->d_inode)
-               DQUOT_INIT(new_dentry->d_inode);
+               vfs_dq_init(new_dentry->d_inode);
        handle = ext3_journal_start(old_dir, 2 *
                                        EXT3_DATA_TRANS_BLOCKS(old_dir->i_sb) +
                                        EXT3_INDEX_EXTRA_TRANS_BLOCKS + 2);