struct buffer_head * bh_use[NAMEI_RA_SIZE];
struct buffer_head * bh, *ret = NULL;
unsigned long start, block, b;
+ const u8 *name = entry->name;
int ra_max = 0; /* Number of bh's in the readahead
buffer, bh_use[] */
int ra_ptr = 0; /* Current index into readahead
namelen = entry->len;
if (namelen > EXT3_NAME_LEN)
return NULL;
+ if ((namelen <= 2) && (name[0] == '.') &&
+ (name[1] == '.' || name[1] == 0)) {
+ /*
+ * "." or ".." will only be in the first block
+ * NFS may look up ".."; "." should be handled by the VFS
+ */
+ block = start = 0;
+ nblocks = 1;
+ goto restart;
+ }
if (is_dx(dir)) {
bh = ext3_dx_find_entry(dir, entry, res_dir, &err);
/*
struct qstr *entry, struct ext3_dir_entry_2 **res_dir,
int *err)
{
- struct super_block * sb;
+ struct super_block *sb = dir->i_sb;
struct dx_hash_info hinfo;
- u32 hash;
struct dx_frame frames[2], *frame;
- struct ext3_dir_entry_2 *de, *top;
struct buffer_head *bh;
unsigned long block;
int retval;
- int namelen = entry->len;
- const u8 *name = entry->name;
- sb = dir->i_sb;
- /* NFS may look up ".." - look at dx_root directory block */
- if (namelen > 2 || name[0] != '.'|| (namelen == 2 && name[1] != '.')) {
- if (!(frame = dx_probe(entry, dir, &hinfo, frames, err)))
- return NULL;
- } else {
- frame = frames;
- frame->bh = NULL; /* for dx_release() */
- frame->at = (struct dx_entry *)frames; /* hack for zero entry*/
- dx_set_block(frame->at, 0); /* dx_root block is 0 */
- }
- hash = hinfo.hash;
+ if (!(frame = dx_probe(entry, dir, &hinfo, frames, err)))
+ return NULL;
do {
block = dx_get_block(frame->at);
if (!(bh = ext3_bread (NULL,dir, block, 0, err)))
goto errout;
- de = (struct ext3_dir_entry_2 *) bh->b_data;
- top = (struct ext3_dir_entry_2 *) ((char *) de + sb->s_blocksize -
- EXT3_DIR_REC_LEN(0));
- for (; de < top; de = ext3_next_entry(de)) {
- int off = (block << EXT3_BLOCK_SIZE_BITS(sb))
- + ((char *) de - bh->b_data);
-
- if (!ext3_check_dir_entry(__func__, dir, de, bh, off)) {
- brelse(bh);
- *err = ERR_BAD_DX_DIR;
- goto errout;
- }
- if (ext3_match(namelen, name, de)) {
- *res_dir = de;
- dx_release(frames);
- return bh;
- }
+ retval = search_dirblock(bh, dir, entry,
+ block << EXT3_BLOCK_SIZE_BITS(sb),
+ res_dir);
+ if (retval == 1) {
+ dx_release(frames);
+ return bh;
}
- brelse (bh);
+ brelse(bh);
+ if (retval == -1) {
+ *err = ERR_BAD_DX_DIR;
+ goto errout;
+ }
+
/* Check to see if we should continue to search */
- retval = ext3_htree_next_block(dir, hash, frame,
+ retval = ext3_htree_next_block(dir, hinfo.hash, frame,
frames, NULL);
if (retval < 0) {
ext3_warning(sb, __func__,
return ERR_PTR(-EIO);
}
inode = ext3_iget(dir->i_sb, ino);
- if (unlikely(IS_ERR(inode))) {
+ if (IS_ERR(inode)) {
if (PTR_ERR(inode) == -ESTALE) {
ext3_error(dir->i_sb, __func__,
"deleted inode referenced: %lu",
if (err)
goto journal_error;
}
- ext3_journal_dirty_metadata(handle, frames[0].bh);
+ err = ext3_journal_dirty_metadata(handle, frames[0].bh);
+ if (err)
+ goto journal_error;
}
de = do_split(handle, dir, &bh, frame, &hinfo, &err);
if (!de)
if (!ext3_check_dir_entry("ext3_delete_entry", dir, de, bh, i))
return -EIO;
if (de == de_del) {
+ int err;
+
BUFFER_TRACE(bh, "get_write_access");
- ext3_journal_get_write_access(handle, bh);
+ err = ext3_journal_get_write_access(handle, bh);
+ if (err)
+ goto journal_error;
+
if (pde)
pde->rec_len = ext3_rec_len_to_disk(
ext3_rec_len_from_disk(pde->rec_len) +
de->inode = 0;
dir->i_version++;
BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
- ext3_journal_dirty_metadata(handle, bh);
+ err = ext3_journal_dirty_metadata(handle, bh);
+ if (err) {
+journal_error:
+ ext3_std_error(dir->i_sb, err);
+ return err;
+ }
return 0;
}
i += ext3_rec_len_from_disk(de->rec_len);
{
handle_t *handle;
struct inode * inode;
- struct buffer_head * dir_block;
+ struct buffer_head * dir_block = NULL;
struct ext3_dir_entry_2 * de;
int err, retries = 0;
inode->i_fop = &ext3_dir_operations;
inode->i_size = EXT3_I(inode)->i_disksize = inode->i_sb->s_blocksize;
dir_block = ext3_bread (handle, inode, 0, 1, &err);
- if (!dir_block) {
- drop_nlink(inode); /* is this nlink == 0? */
- unlock_new_inode(inode);
- ext3_mark_inode_dirty(handle, inode);
- iput (inode);
- goto out_stop;
- }
+ if (!dir_block)
+ goto out_clear_inode;
+
BUFFER_TRACE(dir_block, "get_write_access");
- ext3_journal_get_write_access(handle, dir_block);
+ err = ext3_journal_get_write_access(handle, dir_block);
+ if (err)
+ goto out_clear_inode;
+
de = (struct ext3_dir_entry_2 *) dir_block->b_data;
de->inode = cpu_to_le32(inode->i_ino);
de->name_len = 1;
ext3_set_de_type(dir->i_sb, de, S_IFDIR);
inode->i_nlink = 2;
BUFFER_TRACE(dir_block, "call ext3_journal_dirty_metadata");
- ext3_journal_dirty_metadata(handle, dir_block);
- brelse (dir_block);
- ext3_mark_inode_dirty(handle, inode);
- err = ext3_add_entry (handle, dentry, inode);
+ err = ext3_journal_dirty_metadata(handle, dir_block);
+ if (err)
+ goto out_clear_inode;
+
+ err = ext3_mark_inode_dirty(handle, inode);
+ if (!err)
+ err = ext3_add_entry (handle, dentry, inode);
+
if (err) {
+out_clear_inode:
inode->i_nlink = 0;
unlock_new_inode(inode);
ext3_mark_inode_dirty(handle, inode);
}
inc_nlink(dir);
ext3_update_dx_flag(dir);
- ext3_mark_inode_dirty(handle, dir);
+ err = ext3_mark_inode_dirty(handle, dir);
+ if (err)
+ goto out_clear_inode;
+
d_instantiate(dentry, inode);
unlock_new_inode(inode);
out_stop:
+ brelse(dir_block);
ext3_journal_stop(handle);
if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
goto retry;
goto end_rename;
} else {
BUFFER_TRACE(new_bh, "get write access");
- ext3_journal_get_write_access(handle, new_bh);
+ retval = ext3_journal_get_write_access(handle, new_bh);
+ if (retval)
+ goto journal_error;
new_de->inode = cpu_to_le32(old_inode->i_ino);
if (EXT3_HAS_INCOMPAT_FEATURE(new_dir->i_sb,
EXT3_FEATURE_INCOMPAT_FILETYPE))
new_dir->i_ctime = new_dir->i_mtime = CURRENT_TIME_SEC;
ext3_mark_inode_dirty(handle, new_dir);
BUFFER_TRACE(new_bh, "call ext3_journal_dirty_metadata");
- ext3_journal_dirty_metadata(handle, new_bh);
+ retval = ext3_journal_dirty_metadata(handle, new_bh);
+ if (retval)
+ goto journal_error;
brelse(new_bh);
new_bh = NULL;
}
ext3_update_dx_flag(old_dir);
if (dir_bh) {
BUFFER_TRACE(dir_bh, "get_write_access");
- ext3_journal_get_write_access(handle, dir_bh);
+ retval = ext3_journal_get_write_access(handle, dir_bh);
+ if (retval)
+ goto journal_error;
PARENT_INO(dir_bh->b_data) = cpu_to_le32(new_dir->i_ino);
BUFFER_TRACE(dir_bh, "call ext3_journal_dirty_metadata");
- ext3_journal_dirty_metadata(handle, dir_bh);
+ retval = ext3_journal_dirty_metadata(handle, dir_bh);
+ if (retval) {
+journal_error:
+ ext3_std_error(new_dir->i_sb, retval);
+ goto end_rename;
+ }
drop_nlink(old_dir);
if (new_inode) {
drop_nlink(new_inode);
projects / mv-sheeva.git / blobdiff