#include <linux/quotaops.h>
#include <linux/buffer_head.h>
#include <linux/smp_lock.h>
+#include <linux/vserver/xid.h>
+
+#include "namei.h"
#include "xattr.h"
#include "acl.h"
#define swap(x, y) do { typeof(x) z = x; x = y; y = z; } while (0)
#endif
-typedef struct { u32 v; } le_u32;
-typedef struct { u16 v; } le_u16;
-
#ifdef DX_DEBUG
#define dxtrace(command) command
#else
struct fake_dirent
{
- /*le*/u32 inode;
- /*le*/u16 rec_len;
+ __le32 inode;
+ __le16 rec_len;
u8 name_len;
u8 file_type;
};
struct dx_countlimit
{
- le_u16 limit;
- le_u16 count;
+ __le16 limit;
+ __le16 count;
};
struct dx_entry
{
- le_u32 hash;
- le_u32 block;
+ __le32 hash;
+ __le32 block;
};
/*
char dotdot_name[4];
struct dx_root_info
{
- le_u32 reserved_zero;
+ __le32 reserved_zero;
u8 hash_version;
u8 info_length; /* 8 */
u8 indirect_levels;
static inline unsigned dx_get_block (struct dx_entry *entry)
{
- return le32_to_cpu(entry->block.v) & 0x00ffffff;
+ return le32_to_cpu(entry->block) & 0x00ffffff;
}
static inline void dx_set_block (struct dx_entry *entry, unsigned value)
{
- entry->block.v = cpu_to_le32(value);
+ entry->block = cpu_to_le32(value);
}
static inline unsigned dx_get_hash (struct dx_entry *entry)
{
- return le32_to_cpu(entry->hash.v);
+ return le32_to_cpu(entry->hash);
}
static inline void dx_set_hash (struct dx_entry *entry, unsigned value)
{
- entry->hash.v = cpu_to_le32(value);
+ entry->hash = cpu_to_le32(value);
}
static inline unsigned dx_get_count (struct dx_entry *entries)
{
- return le16_to_cpu(((struct dx_countlimit *) entries)->count.v);
+ return le16_to_cpu(((struct dx_countlimit *) entries)->count);
}
static inline unsigned dx_get_limit (struct dx_entry *entries)
{
- return le16_to_cpu(((struct dx_countlimit *) entries)->limit.v);
+ return le16_to_cpu(((struct dx_countlimit *) entries)->limit);
}
static inline void dx_set_count (struct dx_entry *entries, unsigned value)
{
- ((struct dx_countlimit *) entries)->count.v = cpu_to_le16(value);
+ ((struct dx_countlimit *) entries)->count = cpu_to_le16(value);
}
static inline void dx_set_limit (struct dx_entry *entries, unsigned value)
{
- ((struct dx_countlimit *) entries)->limit.v = cpu_to_le16(value);
+ ((struct dx_countlimit *) entries)->limit = cpu_to_le16(value);
}
static inline unsigned dx_root_limit (struct inode *dir, unsigned infosize)
((hinfo->hash == start_hash) &&
(hinfo->minor_hash < start_minor_hash)))
continue;
+ if (de->inode == 0)
+ continue;
if ((err = ext3_htree_store_dirent(dir_file,
hinfo->hash, hinfo->minor_hash, de)) != 0) {
brelse(bh);
}
hinfo.hash = start_hash;
hinfo.minor_hash = 0;
- frame = dx_probe(0, dir_file->f_dentry->d_inode, &hinfo, frames, &err);
+ frame = dx_probe(NULL, dir_file->f_dentry->d_inode, &hinfo, frames, &err);
if (!frame)
return err;
de = (struct ext3_dir_entry_2 *) frames[0].bh->b_data;
if ((err = ext3_htree_store_dirent(dir_file, 0, 0, de)) != 0)
goto errout;
+ count++;
+ }
+ if (start_hash < 2 || (start_hash ==2 && start_minor_hash==0)) {
+ de = (struct ext3_dir_entry_2 *) frames[0].bh->b_data;
de = ext3_next_entry(de);
- if ((err = ext3_htree_store_dirent(dir_file, 0, 0, de)) != 0)
+ if ((err = ext3_htree_store_dirent(dir_file, 2, 0, de)) != 0)
goto errout;
- count += 2;
+ count++;
}
while (1) {
map_tail->hash = h.hash;
map_tail->offs = (u32) ((char *) de - base);
count++;
+ cond_resched();
}
/* XXX: do we need to check rec_len == 0 case? -Chris */
de = (struct ext3_dir_entry_2 *) ((char *) de + le16_to_cpu(de->rec_len));
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
/* read error, skip block & hope for the best */
+ ext3_error(sb, __FUNCTION__, "reading directory #%lu "
+ "offset %lu", dir->i_ino, block);
brelse(bh);
goto next;
}
struct inode *dir = dentry->d_parent->d_inode;
sb = dir->i_sb;
- if (!(frame = dx_probe (dentry, 0, &hinfo, frames, err)))
- return NULL;
+ /* NFS may look up ".." - look at dx_root directory block */
+ if (namelen > 2 || name[0] != '.'||(name[1] != '.' && name[1] != '\0')){
+ if (!(frame = dx_probe(dentry, NULL, &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;
do {
block = dx_get_block(frame->at);
brelse (bh);
/* Check to see if we should continue to search */
retval = ext3_htree_next_block(dir, hash, frame,
- frames, 0);
+ frames, NULL);
if (retval < 0) {
ext3_warning(sb, __FUNCTION__,
"error reading index page in directory #%lu",
if (!inode)
return ERR_PTR(-EACCES);
+ vx_propagate_xid(nd, inode);
}
- if (inode)
- return d_splice_alias(inode, dentry);
- d_add(dentry, inode);
- return NULL;
+ return d_splice_alias(inode, dentry);
}
* happen is that the times are slightly out of date
* and/or different from the directory change time.
*/
- dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+ dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
ext3_update_dx_flag(dir);
dir->i_version++;
ext3_mark_inode_dirty(handle, dir);
bh = ext3_bread(handle, dir, block, 0, &retval);
if(!bh)
return retval;
- retval = add_dirent_to_buf(handle, dentry, inode, 0, bh);
+ retval = add_dirent_to_buf(handle, dentry, inode, NULL, bh);
if (retval != -ENOSPC)
return retval;
struct ext3_dir_entry_2 *de;
int err;
- frame = dx_probe(dentry, 0, &hinfo, frames, &err);
+ frame = dx_probe(dentry, NULL, &hinfo, frames, &err);
if (!frame)
return err;
entries = frame->entries;
if (err)
goto journal_error;
- err = add_dirent_to_buf(handle, dentry, inode, 0, bh);
+ err = add_dirent_to_buf(handle, dentry, inode, NULL, bh);
if (err != -ENOSPC) {
- bh = 0;
+ bh = NULL;
goto cleanup;
}
if (levels && (dx_get_count(frames->entries) ==
dx_get_limit(frames->entries))) {
ext3_warning(sb, __FUNCTION__,
- "Directory index full!\n");
+ "Directory index full!");
err = -ENOSPC;
goto cleanup;
}
if (!de)
goto cleanup;
err = add_dirent_to_buf(handle, dentry, inode, de, bh);
- bh = 0;
+ bh = NULL;
goto cleanup;
journal_error:
{
handle_t *handle;
struct inode * inode;
- int err;
+ int err, retries = 0;
- handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS +
+retry:
+ handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 +
- 2*EXT3_QUOTA_INIT_BLOCKS);
+ 2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
err = ext3_add_nondir(handle, dentry, inode);
}
ext3_journal_stop(handle);
+ if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
+ goto retry;
return err;
}
{
handle_t *handle;
struct inode *inode;
- int err;
+ int err, retries = 0;
if (!new_valid_dev(rdev))
return -EINVAL;
- handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS +
+retry:
+ handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 +
- 2*EXT3_QUOTA_INIT_BLOCKS);
+ 2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
err = ext3_add_nondir(handle, dentry, inode);
}
ext3_journal_stop(handle);
+ if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
+ goto retry;
return err;
}
struct inode * inode;
struct buffer_head * dir_block;
struct ext3_dir_entry_2 * de;
- int err;
+ int err, retries = 0;
if (dir->i_nlink >= EXT3_LINK_MAX)
return -EMLINK;
- handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS +
+retry:
+ handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 +
- 2*EXT3_QUOTA_INIT_BLOCKS);
+ 2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
d_instantiate(dentry, inode);
out_stop:
ext3_journal_stop(handle);
+ if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
+ goto retry;
return err;
}
struct buffer_head * bh;
struct ext3_dir_entry_2 * de, * de1;
struct super_block * sb;
- int err;
+ int err = 0;
sb = inode->i_sb;
if (inode->i_size < EXT3_DIR_REC_LEN(1) + EXT3_DIR_REC_LEN(2) ||
!(bh = ext3_bread (NULL, inode, 0, 0, &err))) {
- ext3_warning (inode->i_sb, "empty_dir",
- "bad directory (dir #%lu) - no data block",
- inode->i_ino);
+ if (err)
+ ext3_error(inode->i_sb, __FUNCTION__,
+ "error %d reading directory #%lu offset 0",
+ err, inode->i_ino);
+ else
+ ext3_warning(inode->i_sb, __FUNCTION__,
+ "bad directory (dir #%lu) - no data block",
+ inode->i_ino);
return 1;
}
de = (struct ext3_dir_entry_2 *) bh->b_data;
while (offset < inode->i_size ) {
if (!bh ||
(void *) de >= (void *) (bh->b_data+sb->s_blocksize)) {
+ err = 0;
brelse (bh);
bh = ext3_bread (NULL, inode,
offset >> EXT3_BLOCK_SIZE_BITS(sb), 0, &err);
if (!bh) {
-#if 0
- ext3_error (sb, "empty_dir",
- "directory #%lu contains a hole at offset %lu",
- inode->i_ino, offset);
-#endif
+ if (err)
+ ext3_error(sb, __FUNCTION__,
+ "error %d reading directory"
+ " #%lu offset %lu",
+ err, inode->i_ino, offset);
offset += sb->s_blocksize;
continue;
}
de = (struct ext3_dir_entry_2 *) bh->b_data;
}
- if (!ext3_check_dir_entry ("empty_dir", inode, de, bh,
- offset)) {
- brelse (bh);
- return 1;
+ if (!ext3_check_dir_entry("empty_dir", inode, de, bh, offset)) {
+ de = (struct ext3_dir_entry_2 *)(bh->b_data +
+ sb->s_blocksize);
+ offset = (offset | (sb->s_blocksize - 1)) + 1;
+ continue;
}
if (le32_to_cpu(de->inode)) {
brelse (bh);
goto out_brelse;
NEXT_ORPHAN(inode) = 0;
err = ext3_mark_iloc_dirty(handle, inode, &iloc);
- if (err)
- goto out_brelse;
out_err:
ext3_std_error(inode->i_sb, err);
/* Initialize quotas before so that eventual writes go in
* separate transaction */
DQUOT_INIT(dentry->d_inode);
- handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS);
+ handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
* recovery. */
inode->i_size = 0;
ext3_orphan_add(handle, inode);
- inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+ inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
ext3_mark_inode_dirty(handle, inode);
dir->i_nlink--;
ext3_update_dx_flag(dir);
/* Initialize quotas before so that eventual writes go
* in separate transaction */
DQUOT_INIT(dentry->d_inode);
- handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS);
+ handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
retval = ext3_delete_entry(handle, dir, de, bh);
if (retval)
goto end_unlink;
- dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+ dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
ext3_update_dx_flag(dir);
ext3_mark_inode_dirty(handle, dir);
inode->i_nlink--;
{
handle_t *handle;
struct inode * inode;
- int l, err;
+ int l, err, retries = 0;
l = strlen(symname)+1;
if (l > dir->i_sb->s_blocksize)
return -ENAMETOOLONG;
- handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS +
+retry:
+ handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
EXT3_INDEX_EXTRA_TRANS_BLOCKS + 5 +
- 2*EXT3_QUOTA_INIT_BLOCKS);
+ 2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
* We have a transaction open. All is sweetness. It also sets
* i_size in generic_commit_write().
*/
- err = page_symlink(inode, symname, l);
+ err = __page_symlink(inode, symname, l,
+ mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS);
if (err) {
ext3_dec_count(handle, inode);
ext3_mark_inode_dirty(handle, inode);
err = ext3_add_nondir(handle, dentry, inode);
out_stop:
ext3_journal_stop(handle);
+ if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
+ goto retry;
return err;
}
{
handle_t *handle;
struct inode *inode = old_dentry->d_inode;
- int err;
+ int err, retries = 0;
if (inode->i_nlink >= EXT3_LINK_MAX)
return -EMLINK;
- handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS +
+retry:
+ handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
EXT3_INDEX_EXTRA_TRANS_BLOCKS);
if (IS_ERR(handle))
return PTR_ERR(handle);
if (IS_DIRSYNC(dir))
handle->h_sync = 1;
- inode->i_ctime = CURRENT_TIME;
+ inode->i_ctime = CURRENT_TIME_SEC;
ext3_inc_count(handle, inode);
atomic_inc(&inode->i_count);
err = ext3_add_nondir(handle, dentry, inode);
ext3_journal_stop(handle);
+ if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
+ goto retry;
return err;
}
* in separate transaction */
if (new_dentry->d_inode)
DQUOT_INIT(new_dentry->d_inode);
- handle = ext3_journal_start(old_dir, 2 * EXT3_DATA_TRANS_BLOCKS +
+ handle = ext3_journal_start(old_dir, 2 *
+ EXT3_DATA_TRANS_BLOCKS(old_dir->i_sb) +
EXT3_INDEX_EXTRA_TRANS_BLOCKS + 2);
if (IS_ERR(handle))
return PTR_ERR(handle);
} else {
BUFFER_TRACE(new_bh, "get write access");
ext3_journal_get_write_access(handle, new_bh);
- new_de->inode = le32_to_cpu(old_inode->i_ino);
+ new_de->inode = cpu_to_le32(old_inode->i_ino);
if (EXT3_HAS_INCOMPAT_FEATURE(new_dir->i_sb,
EXT3_FEATURE_INCOMPAT_FILETYPE))
new_de->file_type = old_de->file_type;
* Like most other Unix systems, set the ctime for inodes on a
* rename.
*/
- old_inode->i_ctime = CURRENT_TIME;
+ old_inode->i_ctime = CURRENT_TIME_SEC;
ext3_mark_inode_dirty(handle, old_inode);
/*
* ok, that's it
*/
- retval = ext3_delete_entry(handle, old_dir, old_de, old_bh);
- if (retval == -ENOENT) {
- /*
- * old_de could have moved out from under us.
- */
+ if (le32_to_cpu(old_de->inode) != old_inode->i_ino ||
+ old_de->name_len != old_dentry->d_name.len ||
+ strncmp(old_de->name, old_dentry->d_name.name, old_de->name_len) ||
+ (retval = ext3_delete_entry(handle, old_dir,
+ old_de, old_bh)) == -ENOENT) {
+ /* old_de could have moved from under us during htree split, so
+ * make sure that we are deleting the right entry. We might
+ * also be pointing to a stale entry in the unused part of
+ * old_bh so just checking inum and the name isn't enough. */
struct buffer_head *old_bh2;
struct ext3_dir_entry_2 *old_de2;
if (new_inode) {
new_inode->i_nlink--;
- new_inode->i_ctime = CURRENT_TIME;
+ new_inode->i_ctime = CURRENT_TIME_SEC;
}
- old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME;
+ old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME_SEC;
ext3_update_dx_flag(old_dir);
if (dir_bh) {
BUFFER_TRACE(dir_bh, "get_write_access");
ext3_journal_get_write_access(handle, dir_bh);
- PARENT_INO(dir_bh->b_data) = le32_to_cpu(new_dir->i_ino);
+ 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);
old_dir->i_nlink--;
.mknod = ext3_mknod,
.rename = ext3_rename,
.setattr = ext3_setattr,
- .setxattr = ext3_setxattr,
- .getxattr = ext3_getxattr,
+#ifdef CONFIG_EXT3_FS_XATTR
+ .setxattr = generic_setxattr,
+ .getxattr = generic_getxattr,
.listxattr = ext3_listxattr,
- .removexattr = ext3_removexattr,
+ .removexattr = generic_removexattr,
+#endif
.permission = ext3_permission,
+ .sync_flags = ext3_sync_flags,
};
struct inode_operations ext3_special_inode_operations = {
.setattr = ext3_setattr,
- .setxattr = ext3_setxattr,
- .getxattr = ext3_getxattr,
+#ifdef CONFIG_EXT3_FS_XATTR
+ .setxattr = generic_setxattr,
+ .getxattr = generic_getxattr,
.listxattr = ext3_listxattr,
- .removexattr = ext3_removexattr,
+ .removexattr = generic_removexattr,
+#endif
.permission = ext3_permission,
+ .sync_flags = ext3_sync_flags,
};
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