#include <linux/pagemap.h>
#include <linux/jbd2.h>
#include <linux/time.h>
-#include <linux/ext4_fs.h>
-#include <linux/ext4_jbd2.h>
#include <linux/fcntl.h>
#include <linux/stat.h>
#include <linux/string.h>
#include <linux/quotaops.h>
#include <linux/buffer_head.h>
#include <linux/bio.h>
+#include "ext4.h"
+#include "ext4_jbd2.h"
#include "namei.h"
#include "xattr.h"
*block = inode->i_size >> inode->i_sb->s_blocksize_bits;
- if ((bh = ext4_bread(handle, inode, *block, 1, err))) {
+ bh = ext4_bread(handle, inode, *block, 1, err);
+ if (bh) {
inode->i_size += inode->i_sb->s_blocksize;
EXT4_I(inode)->i_disksize = inode->i_size;
- ext4_journal_get_write_access(handle,bh);
+ *err = ext4_journal_get_write_access(handle, bh);
+ if (*err) {
+ brelse(bh);
+ bh = NULL;
+ }
}
return bh;
}
static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
struct inode *inode);
+/*
+ * p is at least 6 bytes before the end of page
+ */
+static inline struct ext4_dir_entry_2 *
+ext4_next_entry(struct ext4_dir_entry_2 *p)
+{
+ return (struct ext4_dir_entry_2 *)((char *)p +
+ ext4_rec_len_from_disk(p->rec_len));
+}
+
/*
* Future: use high four bits of block for coalesce-on-delete flags
* Mask them off for now.
{
unsigned entry_space = dir->i_sb->s_blocksize - EXT4_DIR_REC_LEN(1) -
EXT4_DIR_REC_LEN(2) - infosize;
- return 0? 20: entry_space / sizeof(struct dx_entry);
+ return entry_space / sizeof(struct dx_entry);
}
static inline unsigned dx_node_limit (struct inode *dir)
{
unsigned entry_space = dir->i_sb->s_blocksize - EXT4_DIR_REC_LEN(0);
- return 0? 22: entry_space / sizeof(struct dx_entry);
+ return entry_space / sizeof(struct dx_entry);
}
/*
if (root->info.hash_version != DX_HASH_TEA &&
root->info.hash_version != DX_HASH_HALF_MD4 &&
root->info.hash_version != DX_HASH_LEGACY) {
- ext4_warning(dir->i_sb, __FUNCTION__,
+ ext4_warning(dir->i_sb, __func__,
"Unrecognised inode hash code %d",
root->info.hash_version);
brelse(bh);
hash = hinfo->hash;
if (root->info.unused_flags & 1) {
- ext4_warning(dir->i_sb, __FUNCTION__,
+ ext4_warning(dir->i_sb, __func__,
"Unimplemented inode hash flags: %#06x",
root->info.unused_flags);
brelse(bh);
}
if ((indirect = root->info.indirect_levels) > 1) {
- ext4_warning(dir->i_sb, __FUNCTION__,
+ ext4_warning(dir->i_sb, __func__,
"Unimplemented inode hash depth: %#06x",
root->info.indirect_levels);
brelse(bh);
if (dx_get_limit(entries) != dx_root_limit(dir,
root->info.info_length)) {
- ext4_warning(dir->i_sb, __FUNCTION__,
+ ext4_warning(dir->i_sb, __func__,
"dx entry: limit != root limit");
brelse(bh);
*err = ERR_BAD_DX_DIR;
{
count = dx_get_count(entries);
if (!count || count > dx_get_limit(entries)) {
- ext4_warning(dir->i_sb, __FUNCTION__,
+ ext4_warning(dir->i_sb, __func__,
"dx entry: no count or count > limit");
brelse(bh);
*err = ERR_BAD_DX_DIR;
goto fail2;
at = entries = ((struct dx_node *) bh->b_data)->entries;
if (dx_get_limit(entries) != dx_node_limit (dir)) {
- ext4_warning(dir->i_sb, __FUNCTION__,
+ ext4_warning(dir->i_sb, __func__,
"dx entry: limit != node limit");
brelse(bh);
*err = ERR_BAD_DX_DIR;
}
fail:
if (*err == ERR_BAD_DX_DIR)
- ext4_warning(dir->i_sb, __FUNCTION__,
+ ext4_warning(dir->i_sb, __func__,
"Corrupt dir inode %ld, running e2fsck is "
"recommended.", dir->i_ino);
return NULL;
}
-/*
- * p is at least 6 bytes before the end of page
- */
-static inline struct ext4_dir_entry_2 *ext4_next_entry(struct ext4_dir_entry_2 *p)
-{
- return (struct ext4_dir_entry_2 *)((char *)p +
- ext4_rec_len_from_disk(p->rec_len));
-}
-
/*
* This function fills a red-black tree with information from a
* directory block. It returns the number directory entries loaded
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
/* read error, skip block & hope for the best */
- ext4_error(sb, __FUNCTION__, "reading directory #%lu "
+ ext4_error(sb, __func__, "reading directory #%lu "
"offset %lu", dir->i_ino,
(unsigned long)block);
brelse(bh);
de = (struct ext4_dir_entry_2 *) bh->b_data;
top = (struct ext4_dir_entry_2 *) ((char *) de + sb->s_blocksize -
EXT4_DIR_REC_LEN(0));
- for (; de < top; de = ext4_next_entry(de))
- if (ext4_match (namelen, name, de)) {
- if (!ext4_check_dir_entry("ext4_find_entry",
- dir, de, bh,
- (block<<EXT4_BLOCK_SIZE_BITS(sb))
- +((char *)de - bh->b_data))) {
- brelse (bh);
+ for (; de < top; de = ext4_next_entry(de)) {
+ int off = (block << EXT4_BLOCK_SIZE_BITS(sb))
+ + ((char *) de - bh->b_data);
+
+ if (!ext4_check_dir_entry(__func__, dir, de, bh, off)) {
+ brelse(bh);
*err = ERR_BAD_DX_DIR;
goto errout;
}
- *res_dir = de;
- dx_release (frames);
- return bh;
+
+ if (ext4_match(namelen, name, de)) {
+ *res_dir = de;
+ dx_release(frames);
+ return bh;
+ }
}
brelse (bh);
/* Check to see if we should continue to search */
retval = ext4_htree_next_block(dir, hash, frame,
frames, NULL);
if (retval < 0) {
- ext4_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __func__,
"error reading index page in directory #%lu",
dir->i_ino);
*err = retval;
if (levels && (dx_get_count(frames->entries) ==
dx_get_limit(frames->entries))) {
- ext4_warning(sb, __FUNCTION__,
+ ext4_warning(sb, __func__,
"Directory index full!");
err = -ENOSPC;
goto cleanup;
if (inode->i_size < EXT4_DIR_REC_LEN(1) + EXT4_DIR_REC_LEN(2) ||
!(bh = ext4_bread (NULL, inode, 0, 0, &err))) {
if (err)
- ext4_error(inode->i_sb, __FUNCTION__,
+ ext4_error(inode->i_sb, __func__,
"error %d reading directory #%lu offset 0",
err, inode->i_ino);
else
- ext4_warning(inode->i_sb, __FUNCTION__,
+ ext4_warning(inode->i_sb, __func__,
"bad directory (dir #%lu) - no data block",
inode->i_ino);
return 1;
offset >> EXT4_BLOCK_SIZE_BITS(sb), 0, &err);
if (!bh) {
if (err)
- ext4_error(sb, __FUNCTION__,
+ ext4_error(sb, __func__,
"error %d reading directory"
" #%lu offset %lu",
err, inode->i_ino, offset);
goto out_stop;
}
} else {
+ /* clear the extent format for fast symlink */
+ EXT4_I(inode)->i_flags &= ~EXT4_EXTENTS_FL;
inode->i_op = &ext4_fast_symlink_inode_operations;
memcpy((char*)&EXT4_I(inode)->i_data,symname,l);
inode->i_size = l-1;
EXT4_FEATURE_INCOMPAT_FILETYPE))
new_de->file_type = old_de->file_type;
new_dir->i_version++;
+ new_dir->i_ctime = new_dir->i_mtime =
+ ext4_current_time(new_dir);
+ ext4_mark_inode_dirty(handle, new_dir);
BUFFER_TRACE(new_bh, "call ext4_journal_dirty_metadata");
ext4_journal_dirty_metadata(handle, new_bh);
brelse(new_bh);
projects / cascardo / linux.git / blobdiff