void udf_free_inode(struct inode *inode)
{
struct super_block *sb = inode->i_sb;
struct udf_sb_info *sbi = UDF_SB(sb);
/*
* Note: we must free any quota before locking the superblock,
* as writing the quota to disk may need the lock as well.
*/
DQUOT_FREE_INODE(inode);
DQUOT_DROP(inode);
clear_inode(inode);
mutex_lock(&sbi->s_alloc_mutex);
if (sbi->s_lvid_bh) {
struct logicalVolIntegrityDescImpUse *lvidiu =
udf_sb_lvidiu(sbi);
if (S_ISDIR(inode->i_mode))
le32_add_cpu(&lvidiu->numDirs, -1);
else
le32_add_cpu(&lvidiu->numFiles, -1);
mark_buffer_dirty(sbi->s_lvid_bh);
}
mutex_unlock(&sbi->s_alloc_mutex);
udf_free_blocks(sb, NULL, UDF_I(inode)->i_location, 0, 1);
}
/* quota utility function, call if you've had to abort after calling
** new_inode_init, and have not called reiserfs_new_inode yet.
** This should only be called on inodes that do not have stat data
** inserted into the tree yet.
*/
static int drop_new_inode(struct inode *inode) {
DQUOT_DROP(inode);
make_bad_inode(inode) ;
inode->i_flags |= S_NOQUOTA;
iput(inode) ;
return 0 ;
}
void udf_free_inode(struct inode * inode)
{
struct super_block *sb = inode->i_sb;
struct udf_sb_info *sbi = UDF_SB(sb);
/*
* Note: we must free any quota before locking the superblock,
* as writing the quota to disk may need the lock as well.
*/
DQUOT_FREE_INODE(inode);
DQUOT_DROP(inode);
clear_inode(inode);
lock_udf_alloc_sem(sbi);
if (sbi->s_lvidbh) {
if (S_ISDIR(inode->i_mode))
UDF_SB_LVIDIU(sb)->numDirs =
cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs) - 1);
else
UDF_SB_LVIDIU(sb)->numFiles =
cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) - 1);
mark_buffer_dirty(sbi->s_lvidbh);
}
unlock_udf_alloc_sem(sbi);
udf_free_blocks(sb, NULL, UDF_I_LOCATION(inode), 0, 1);
}
/*
* This is called by the filesystem to tell us
* that the inode is no longer useful. We just
* terminate it with extreme prejudice.
*/
void clear_inode(struct inode *inode)
{
if (inode->i_nrpages)
truncate_inode_pages(inode, 0);
wait_on_inode(inode);
if (IS_QUOTAINIT(inode))
DQUOT_DROP(inode);
if (inode->i_sb && inode->i_sb->s_op && inode->i_sb->s_op->clear_inode)
inode->i_sb->s_op->clear_inode(inode);
inode->i_state = 0;
}
/*
* Truncate a file.
* The calling routines must make sure to update the ctime
* field and call notify_change.
*
* XXX Nobody calls this thing? -DaveM
* N.B. After this call fhp needs an fh_put
*/
int
nfsd_truncate(struct svc_rqst *rqstp, struct svc_fh *fhp, unsigned long size)
{
struct dentry *dentry;
struct inode *inode;
struct iattr newattrs;
int err;
kernel_cap_t saved_cap;
err = fh_verify(rqstp, fhp, S_IFREG, MAY_WRITE | MAY_TRUNC);
if (err)
goto out;
dentry = fhp->fh_dentry;
inode = dentry->d_inode;
err = get_write_access(inode);
if (err)
goto out_nfserr;
/* Things look sane, lock and do it. */
fh_lock(fhp);
DQUOT_INIT(inode);
newattrs.ia_size = size;
newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
if (current->fsuid != 0) {
saved_cap = current->cap_effective;
cap_clear(current->cap_effective);
}
err = notify_change(dentry, &newattrs);
if (current->fsuid != 0)
current->cap_effective = saved_cap;
if (!err) {
vmtruncate(inode, size);
if (inode->i_op && inode->i_op->truncate)
inode->i_op->truncate(inode);
}
put_write_access(inode);
DQUOT_DROP(inode);
fh_unlock(fhp);
out_nfserr:
if (err)
err = nfserrno(-err);
out:
return err;
}
/*
* Close a file.
*/
void
nfsd_close(struct file *filp)
{
struct dentry *dentry = filp->f_dentry;
struct inode *inode = dentry->d_inode;
if (!inode->i_count)
printk(KERN_WARNING "nfsd: inode count == 0!\n");
if (!dentry->d_count)
printk(KERN_WARNING "nfsd: wheee, %s/%s d_count == 0!\n",
dentry->d_parent->d_name.name, dentry->d_name.name);
if (filp->f_op && filp->f_op->release)
filp->f_op->release(inode, filp);
if (filp->f_mode & FMODE_WRITE) {
put_write_access(inode);
DQUOT_DROP(inode);
}
}
void jfs_delete_inode(struct inode *inode)
{
jfs_info("In jfs_delete_inode, inode = 0x%p", inode);
if (test_cflag(COMMIT_Freewmap, inode))
freeZeroLink(inode);
diFree(inode);
/*
* Free the inode from the quota allocation.
*/
DQUOT_INIT(inode);
DQUOT_FREE_INODE(inode);
DQUOT_DROP(inode);
clear_inode(inode);
}
void jfs_delete_inode(struct inode *inode)
{
jfs_info("In jfs_delete_inode, inode = 0x%p", inode);
if (!is_bad_inode(inode) &&
(JFS_IP(inode)->fileset == FILESYSTEM_I)) {
truncate_inode_pages(&inode->i_data, 0);
if (test_cflag(COMMIT_Freewmap, inode))
jfs_free_zero_link(inode);
diFree(inode);
/*
* Free the inode from the quota allocation.
*/
DQUOT_INIT(inode);
DQUOT_FREE_INODE(inode);
DQUOT_DROP(inode);
}
clear_inode(inode);
}
void udf_free_inode(struct inode * inode)
{
struct super_block * sb = inode->i_sb;
int is_directory;
unsigned long ino;
ino = inode->i_ino;
/*
* Note: we must free any quota before locking the superblock,
* as writing the quota to disk may need the lock as well.
*/
DQUOT_FREE_INODE(inode);
DQUOT_DROP(inode);
lock_super(sb);
is_directory = S_ISDIR(inode->i_mode);
clear_inode(inode);
if (UDF_SB_LVIDBH(sb))
{
if (is_directory)
UDF_SB_LVIDIU(sb)->numDirs =
cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs) - 1);
else
UDF_SB_LVIDIU(sb)->numFiles =
cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) - 1);
mark_buffer_dirty(UDF_SB_LVIDBH(sb));
}
unlock_super(sb);
udf_free_blocks(sb, NULL, UDF_I_LOCATION(inode), 0, 1);
}
/*
* There are two policies for allocating an inode. If the new inode is
* a directory, then a forward search is made for a block group with both
* free space and a low directory-to-inode ratio; if that fails, then of
* the groups with above-average free space, that group with the fewest
* directories already is chosen.
*
* For other inodes, search forward from the parent directory's block
* group to find a free inode.
*/
struct inode *ext3_new_inode(handle_t *handle, struct inode * dir, int mode)
{
struct super_block *sb;
struct buffer_head *bitmap_bh = NULL;
struct buffer_head *bh2;
int group;
unsigned long ino = 0;
struct inode * inode;
struct ext3_group_desc * gdp = NULL;
struct ext3_super_block * es;
struct ext3_inode_info *ei;
struct ext3_sb_info *sbi;
int err = 0;
struct inode *ret;
int i;
/* Cannot create files in a deleted directory */
if (!dir || !dir->i_nlink)
return ERR_PTR(-EPERM);
sb = dir->i_sb;
inode = new_inode(sb);
if (!inode)
return ERR_PTR(-ENOMEM);
ei = EXT3_I(inode);
sbi = EXT3_SB(sb);
es = sbi->s_es;
if (S_ISDIR(mode)) {
if (test_opt (sb, OLDALLOC))
group = find_group_dir(sb, dir);
else
group = find_group_orlov(sb, dir);
} else
group = find_group_other(sb, dir);
err = -ENOSPC;
if (group == -1)
goto out;
for (i = 0; i < sbi->s_groups_count; i++) {
err = -EIO;
gdp = ext3_get_group_desc(sb, group, &bh2);
if (!gdp)
goto fail;
brelse(bitmap_bh);
bitmap_bh = read_inode_bitmap(sb, group);
if (!bitmap_bh)
goto fail;
ino = 0;
repeat_in_this_group:
ino = ext3_find_next_zero_bit((unsigned long *)
bitmap_bh->b_data, EXT3_INODES_PER_GROUP(sb), ino);
if (ino < EXT3_INODES_PER_GROUP(sb)) {
BUFFER_TRACE(bitmap_bh, "get_write_access");
err = ext3_journal_get_write_access(handle, bitmap_bh);
if (err)
goto fail;
if (!ext3_set_bit_atomic(sb_bgl_lock(sbi, group),
ino, bitmap_bh->b_data)) {
/* we won it */
BUFFER_TRACE(bitmap_bh,
"call ext3_journal_dirty_metadata");
err = ext3_journal_dirty_metadata(handle,
bitmap_bh);
if (err)
goto fail;
goto got;
}
/* we lost it */
journal_release_buffer(handle, bitmap_bh);
if (++ino < EXT3_INODES_PER_GROUP(sb))
goto repeat_in_this_group;
}
/*
* This case is possible in concurrent environment. It is very
* rare. We cannot repeat the find_group_xxx() call because
* that will simply return the same blockgroup, because the
* group descriptor metadata has not yet been updated.
* So we just go onto the next blockgroup.
*/
if (++group == sbi->s_groups_count)
group = 0;
}
err = -ENOSPC;
goto out;
got:
ino += group * EXT3_INODES_PER_GROUP(sb) + 1;
if (ino < EXT3_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
ext3_error (sb, "ext3_new_inode",
"reserved inode or inode > inodes count - "
"block_group = %d, inode=%lu", group, ino);
err = -EIO;
goto fail;
}
BUFFER_TRACE(bh2, "get_write_access");
err = ext3_journal_get_write_access(handle, bh2);
if (err) goto fail;
spin_lock(sb_bgl_lock(sbi, group));
gdp->bg_free_inodes_count =
cpu_to_le16(le16_to_cpu(gdp->bg_free_inodes_count) - 1);
if (S_ISDIR(mode)) {
gdp->bg_used_dirs_count =
cpu_to_le16(le16_to_cpu(gdp->bg_used_dirs_count) + 1);
}
spin_unlock(sb_bgl_lock(sbi, group));
BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
err = ext3_journal_dirty_metadata(handle, bh2);
if (err) goto fail;
percpu_counter_dec(&sbi->s_freeinodes_counter);
if (S_ISDIR(mode))
percpu_counter_inc(&sbi->s_dirs_counter);
sb->s_dirt = 1;
inode->i_uid = current->fsuid;
if (test_opt (sb, GRPID))
inode->i_gid = dir->i_gid;
else if (dir->i_mode & S_ISGID) {
inode->i_gid = dir->i_gid;
if (S_ISDIR(mode))
mode |= S_ISGID;
} else
inode->i_gid = current->fsgid;
inode->i_mode = mode;
inode->i_ino = ino;
/* This is the optimal IO size (for stat), not the fs block size */
inode->i_blksize = PAGE_SIZE;
inode->i_blocks = 0;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
memset(ei->i_data, 0, sizeof(ei->i_data));
ei->i_dir_start_lookup = 0;
ei->i_disksize = 0;
ei->i_flags = EXT3_I(dir)->i_flags & ~EXT3_INDEX_FL;
if (S_ISLNK(mode))
ei->i_flags &= ~(EXT3_IMMUTABLE_FL|EXT3_APPEND_FL);
/* dirsync only applies to directories */
if (!S_ISDIR(mode))
ei->i_flags &= ~EXT3_DIRSYNC_FL;
#ifdef EXT3_FRAGMENTS
ei->i_faddr = 0;
ei->i_frag_no = 0;
ei->i_frag_size = 0;
#endif
ei->i_file_acl = 0;
ei->i_dir_acl = 0;
ei->i_dtime = 0;
ei->i_block_alloc_info = NULL;
ei->i_block_group = group;
ext3_set_inode_flags(inode);
if (IS_DIRSYNC(inode))
handle->h_sync = 1;
insert_inode_hash(inode);
spin_lock(&sbi->s_next_gen_lock);
inode->i_generation = sbi->s_next_generation++;
spin_unlock(&sbi->s_next_gen_lock);
ei->i_state = EXT3_STATE_NEW;
ei->i_extra_isize =
(EXT3_INODE_SIZE(inode->i_sb) > EXT3_GOOD_OLD_INODE_SIZE) ?
sizeof(struct ext3_inode) - EXT3_GOOD_OLD_INODE_SIZE : 0;
ret = inode;
if(DQUOT_ALLOC_INODE(inode)) {
err = -EDQUOT;
goto fail_drop;
}
err = ext3_init_acl(handle, inode, dir);
if (err)
goto fail_free_drop;
err = ext3_init_security(handle,inode, dir);
if (err)
goto fail_free_drop;
err = ext3_mark_inode_dirty(handle, inode);
if (err) {
ext3_std_error(sb, err);
goto fail_free_drop;
}
ext3_debug("allocating inode %lu\n", inode->i_ino);
goto really_out;
fail:
ext3_std_error(sb, err);
out:
iput(inode);
ret = ERR_PTR(err);
really_out:
brelse(bitmap_bh);
return ret;
fail_free_drop:
DQUOT_FREE_INODE(inode);
fail_drop:
DQUOT_DROP(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
iput(inode);
brelse(bitmap_bh);
return ERR_PTR(err);
}
/*
* NOTE! When we get the inode, we're the only people
* that have access to it, and as such there are no
* race conditions we have to worry about. The inode
* is not on the hash-lists, and it cannot be reached
* through the filesystem because the directory entry
* has been deleted earlier.
*
* HOWEVER: we must make sure that we get no aliases,
* which means that we have to call "clear_inode()"
* _before_ we mark the inode not in use in the inode
* bitmaps. Otherwise a newly created file might use
* the same inode number (not actually the same pointer
* though), and then we'd have two inodes sharing the
* same inode number and space on the harddisk.
*/
void ufs_free_inode (struct inode * inode)
{
struct super_block * sb;
struct ufs_sb_private_info * uspi;
struct ufs_super_block_first * usb1;
struct ufs_cg_private_info * ucpi;
struct ufs_cylinder_group * ucg;
int is_directory;
unsigned ino, cg, bit;
UFSD("ENTER, ino %lu\n", inode->i_ino);
sb = inode->i_sb;
uspi = UFS_SB(sb)->s_uspi;
usb1 = ubh_get_usb_first(uspi);
ino = inode->i_ino;
lock_super (sb);
if (!((ino > 1) && (ino < (uspi->s_ncg * uspi->s_ipg )))) {
ufs_warning(sb, "ufs_free_inode", "reserved inode or nonexistent inode %u\n", ino);
unlock_super (sb);
return;
}
cg = ufs_inotocg (ino);
bit = ufs_inotocgoff (ino);
ucpi = ufs_load_cylinder (sb, cg);
if (!ucpi) {
unlock_super (sb);
return;
}
ucg = ubh_get_ucg(UCPI_UBH(ucpi));
if (!ufs_cg_chkmagic(sb, ucg))
ufs_panic (sb, "ufs_free_fragments", "internal error, bad cg magic number");
ucg->cg_time = cpu_to_fs32(sb, get_seconds());
is_directory = S_ISDIR(inode->i_mode);
DQUOT_FREE_INODE(inode);
DQUOT_DROP(inode);
clear_inode (inode);
if (ubh_isclr (UCPI_UBH(ucpi), ucpi->c_iusedoff, bit))
ufs_error(sb, "ufs_free_inode", "bit already cleared for inode %u", ino);
else {
ubh_clrbit (UCPI_UBH(ucpi), ucpi->c_iusedoff, bit);
if (ino < ucpi->c_irotor)
ucpi->c_irotor = ino;
fs32_add(sb, &ucg->cg_cs.cs_nifree, 1);
uspi->cs_total.cs_nifree++;
fs32_add(sb, &UFS_SB(sb)->fs_cs(cg).cs_nifree, 1);
if (is_directory) {
fs32_sub(sb, &ucg->cg_cs.cs_ndir, 1);
uspi->cs_total.cs_ndir--;
fs32_sub(sb, &UFS_SB(sb)->fs_cs(cg).cs_ndir, 1);
}
}
ubh_mark_buffer_dirty (USPI_UBH(uspi));
ubh_mark_buffer_dirty (UCPI_UBH(ucpi));
if (sb->s_flags & MS_SYNCHRONOUS) {
ubh_ll_rw_block(SWRITE, UCPI_UBH(ucpi));
ubh_wait_on_buffer (UCPI_UBH(ucpi));
}
sb->s_dirt = 1;
unlock_super (sb);
UFSD("EXIT\n");
}
/*
* There are two policies for allocating an inode. If the new inode is
* a directory, then a forward search is made for a block group with both
* free space and a low directory-to-inode ratio; if that fails, then of
* the groups with above-average free space, that group with the fewest
* directories already is chosen.
*
* For other inodes, search forward from the parent directory's block
* group to find a free inode.
*/
struct inode * ufs_new_inode(struct inode * dir, int mode)
{
struct super_block * sb;
struct ufs_sb_info * sbi;
struct ufs_sb_private_info * uspi;
struct ufs_super_block_first * usb1;
struct ufs_cg_private_info * ucpi;
struct ufs_cylinder_group * ucg;
struct inode * inode;
unsigned cg, bit, i, j, start;
struct ufs_inode_info *ufsi;
int err = -ENOSPC;
UFSD("ENTER\n");
/* Cannot create files in a deleted directory */
if (!dir || !dir->i_nlink)
return ERR_PTR(-EPERM);
sb = dir->i_sb;
inode = new_inode(sb);
if (!inode)
return ERR_PTR(-ENOMEM);
ufsi = UFS_I(inode);
sbi = UFS_SB(sb);
uspi = sbi->s_uspi;
usb1 = ubh_get_usb_first(uspi);
lock_super (sb);
/*
* Try to place the inode in its parent directory
*/
i = ufs_inotocg(dir->i_ino);
if (sbi->fs_cs(i).cs_nifree) {
cg = i;
goto cg_found;
}
/*
* Use a quadratic hash to find a group with a free inode
*/
for ( j = 1; j < uspi->s_ncg; j <<= 1 ) {
i += j;
if (i >= uspi->s_ncg)
i -= uspi->s_ncg;
if (sbi->fs_cs(i).cs_nifree) {
cg = i;
goto cg_found;
}
}
/*
* That failed: try linear search for a free inode
*/
i = ufs_inotocg(dir->i_ino) + 1;
for (j = 2; j < uspi->s_ncg; j++) {
i++;
if (i >= uspi->s_ncg)
i = 0;
if (sbi->fs_cs(i).cs_nifree) {
cg = i;
goto cg_found;
}
}
goto failed;
cg_found:
ucpi = ufs_load_cylinder (sb, cg);
if (!ucpi) {
err = -EIO;
goto failed;
}
ucg = ubh_get_ucg(UCPI_UBH(ucpi));
if (!ufs_cg_chkmagic(sb, ucg))
ufs_panic (sb, "ufs_new_inode", "internal error, bad cg magic number");
start = ucpi->c_irotor;
bit = ubh_find_next_zero_bit (UCPI_UBH(ucpi), ucpi->c_iusedoff, uspi->s_ipg, start);
if (!(bit < uspi->s_ipg)) {
bit = ubh_find_first_zero_bit (UCPI_UBH(ucpi), ucpi->c_iusedoff, start);
if (!(bit < start)) {
ufs_error (sb, "ufs_new_inode",
"cylinder group %u corrupted - error in inode bitmap\n", cg);
err = -EIO;
goto failed;
}
}
UFSD("start = %u, bit = %u, ipg = %u\n", start, bit, uspi->s_ipg);
if (ubh_isclr (UCPI_UBH(ucpi), ucpi->c_iusedoff, bit))
ubh_setbit (UCPI_UBH(ucpi), ucpi->c_iusedoff, bit);
else {
ufs_panic (sb, "ufs_new_inode", "internal error");
err = -EIO;
goto failed;
}
if (uspi->fs_magic == UFS2_MAGIC) {
u32 initediblk = fs32_to_cpu(sb, ucg->cg_u.cg_u2.cg_initediblk);
if (bit + uspi->s_inopb > initediblk &&
initediblk < fs32_to_cpu(sb, ucg->cg_u.cg_u2.cg_niblk))
ufs2_init_inodes_chunk(sb, ucpi, ucg);
}
fs32_sub(sb, &ucg->cg_cs.cs_nifree, 1);
uspi->cs_total.cs_nifree--;
fs32_sub(sb, &sbi->fs_cs(cg).cs_nifree, 1);
if (S_ISDIR(mode)) {
fs32_add(sb, &ucg->cg_cs.cs_ndir, 1);
uspi->cs_total.cs_ndir++;
fs32_add(sb, &sbi->fs_cs(cg).cs_ndir, 1);
}
ubh_mark_buffer_dirty (USPI_UBH(uspi));
ubh_mark_buffer_dirty (UCPI_UBH(ucpi));
if (sb->s_flags & MS_SYNCHRONOUS) {
ubh_ll_rw_block(SWRITE, UCPI_UBH(ucpi));
ubh_wait_on_buffer (UCPI_UBH(ucpi));
}
sb->s_dirt = 1;
inode->i_ino = cg * uspi->s_ipg + bit;
inode->i_mode = mode;
inode->i_uid = current->fsuid;
if (dir->i_mode & S_ISGID) {
inode->i_gid = dir->i_gid;
if (S_ISDIR(mode))
inode->i_mode |= S_ISGID;
} else
inode->i_gid = current->fsgid;
inode->i_blocks = 0;
inode->i_generation = 0;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
ufsi->i_flags = UFS_I(dir)->i_flags;
ufsi->i_lastfrag = 0;
ufsi->i_shadow = 0;
ufsi->i_osync = 0;
ufsi->i_oeftflag = 0;
ufsi->i_dir_start_lookup = 0;
memset(&ufsi->i_u1, 0, sizeof(ufsi->i_u1));
insert_inode_hash(inode);
mark_inode_dirty(inode);
if (uspi->fs_magic == UFS2_MAGIC) {
struct buffer_head *bh;
struct ufs2_inode *ufs2_inode;
/*
* setup birth date, we do it here because of there is no sense
* to hold it in struct ufs_inode_info, and lose 64 bit
*/
bh = sb_bread(sb, uspi->s_sbbase + ufs_inotofsba(inode->i_ino));
if (!bh) {
ufs_warning(sb, "ufs_read_inode",
"unable to read inode %lu\n",
inode->i_ino);
err = -EIO;
goto fail_remove_inode;
}
lock_buffer(bh);
ufs2_inode = (struct ufs2_inode *)bh->b_data;
ufs2_inode += ufs_inotofsbo(inode->i_ino);
ufs2_inode->ui_birthtime = cpu_to_fs64(sb, CURRENT_TIME.tv_sec);
ufs2_inode->ui_birthnsec = cpu_to_fs32(sb, CURRENT_TIME.tv_nsec);
mark_buffer_dirty(bh);
unlock_buffer(bh);
if (sb->s_flags & MS_SYNCHRONOUS)
sync_dirty_buffer(bh);
brelse(bh);
}
unlock_super (sb);
if (DQUOT_ALLOC_INODE(inode)) {
DQUOT_DROP(inode);
err = -EDQUOT;
goto fail_without_unlock;
}
UFSD("allocating inode %lu\n", inode->i_ino);
UFSD("EXIT\n");
return inode;
fail_remove_inode:
unlock_super(sb);
fail_without_unlock:
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
iput(inode);
UFSD("EXIT (FAILED): err %d\n", err);
return ERR_PTR(err);
failed:
unlock_super (sb);
make_bad_inode(inode);
iput (inode);
UFSD("EXIT (FAILED): err %d\n", err);
return ERR_PTR(err);
}
/*
* There are two policies for allocating an inode. If the new inode is
* a directory, then a forward search is made for a block group with both
* free space and a low directory-to-inode ratio; if that fails, then of
* the groups with above-average free space, that group with the fewest
* directories already is chosen.
*
* For other inodes, search forward from the parent directory's block
* group to find a free inode.
*/
struct inode * ext3_new_inode (handle_t *handle,
const struct inode * dir, int mode)
{
struct super_block * sb;
struct buffer_head * bh;
struct buffer_head * bh2;
int i, j, avefreei;
struct inode * inode;
int bitmap_nr;
struct ext3_group_desc * gdp;
struct ext3_group_desc * tmp;
struct ext3_super_block * es;
int err = 0;
/* Cannot create files in a deleted directory */
if (!dir || !dir->i_nlink)
return ERR_PTR(-EPERM);
sb = dir->i_sb;
inode = new_inode(sb);
if (!inode)
return ERR_PTR(-ENOMEM);
init_rwsem(&inode->u.ext3_i.truncate_sem);
lock_super (sb);
es = sb->u.ext3_sb.s_es;
repeat:
gdp = NULL;
i = 0;
if (S_ISDIR(mode)) {
avefreei = le32_to_cpu(es->s_free_inodes_count) /
sb->u.ext3_sb.s_groups_count;
if (!gdp) {
for (j = 0; j < sb->u.ext3_sb.s_groups_count; j++) {
struct buffer_head *temp_buffer;
tmp = ext3_get_group_desc (sb, j, &temp_buffer);
if (tmp &&
le16_to_cpu(tmp->bg_free_inodes_count) &&
le16_to_cpu(tmp->bg_free_inodes_count) >=
avefreei) {
if (!gdp || (le16_to_cpu(tmp->bg_free_blocks_count) >
le16_to_cpu(gdp->bg_free_blocks_count))) {
i = j;
gdp = tmp;
bh2 = temp_buffer;
}
}
}
}
} else {
/*
* Try to place the inode in its parent directory
*/
i = dir->u.ext3_i.i_block_group;
tmp = ext3_get_group_desc (sb, i, &bh2);
if (tmp && le16_to_cpu(tmp->bg_free_inodes_count))
gdp = tmp;
else
{
/*
* Use a quadratic hash to find a group with a
* free inode
*/
for (j = 1; j < sb->u.ext3_sb.s_groups_count; j <<= 1) {
i += j;
if (i >= sb->u.ext3_sb.s_groups_count)
i -= sb->u.ext3_sb.s_groups_count;
tmp = ext3_get_group_desc (sb, i, &bh2);
if (tmp &&
le16_to_cpu(tmp->bg_free_inodes_count)) {
gdp = tmp;
break;
}
}
}
if (!gdp) {
/*
* That failed: try linear search for a free inode
*/
i = dir->u.ext3_i.i_block_group + 1;
for (j = 2; j < sb->u.ext3_sb.s_groups_count; j++) {
if (++i >= sb->u.ext3_sb.s_groups_count)
i = 0;
tmp = ext3_get_group_desc (sb, i, &bh2);
if (tmp &&
le16_to_cpu(tmp->bg_free_inodes_count)) {
gdp = tmp;
break;
}
}
}
}
err = -ENOSPC;
if (!gdp)
goto fail;
err = -EIO;
bitmap_nr = load_inode_bitmap (sb, i);
if (bitmap_nr < 0)
goto fail;
bh = sb->u.ext3_sb.s_inode_bitmap[bitmap_nr];
if ((j = ext3_find_first_zero_bit ((unsigned long *) bh->b_data,
EXT3_INODES_PER_GROUP(sb))) <
EXT3_INODES_PER_GROUP(sb)) {
BUFFER_TRACE(bh, "get_write_access");
err = ext3_journal_get_write_access(handle, bh);
if (err) goto fail;
if (ext3_set_bit (j, bh->b_data)) {
ext3_error (sb, "ext3_new_inode",
"bit already set for inode %d", j);
goto repeat;
}
BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
err = ext3_journal_dirty_metadata(handle, bh);
if (err) goto fail;
} else {
if (le16_to_cpu(gdp->bg_free_inodes_count) != 0) {
ext3_error (sb, "ext3_new_inode",
"Free inodes count corrupted in group %d",
i);
/* Is it really ENOSPC? */
err = -ENOSPC;
if (sb->s_flags & MS_RDONLY)
goto fail;
BUFFER_TRACE(bh2, "get_write_access");
err = ext3_journal_get_write_access(handle, bh2);
if (err) goto fail;
gdp->bg_free_inodes_count = 0;
BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
err = ext3_journal_dirty_metadata(handle, bh2);
if (err) goto fail;
}
goto repeat;
}
j += i * EXT3_INODES_PER_GROUP(sb) + 1;
if (j < EXT3_FIRST_INO(sb) || j > le32_to_cpu(es->s_inodes_count)) {
ext3_error (sb, "ext3_new_inode",
"reserved inode or inode > inodes count - "
"block_group = %d,inode=%d", i, j);
err = -EIO;
goto fail;
}
BUFFER_TRACE(bh2, "get_write_access");
err = ext3_journal_get_write_access(handle, bh2);
if (err) goto fail;
gdp->bg_free_inodes_count =
cpu_to_le16(le16_to_cpu(gdp->bg_free_inodes_count) - 1);
if (S_ISDIR(mode))
gdp->bg_used_dirs_count =
cpu_to_le16(le16_to_cpu(gdp->bg_used_dirs_count) + 1);
BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
err = ext3_journal_dirty_metadata(handle, bh2);
if (err) goto fail;
BUFFER_TRACE(sb->u.ext3_sb.s_sbh, "get_write_access");
err = ext3_journal_get_write_access(handle, sb->u.ext3_sb.s_sbh);
if (err) goto fail;
es->s_free_inodes_count =
cpu_to_le32(le32_to_cpu(es->s_free_inodes_count) - 1);
BUFFER_TRACE(sb->u.ext3_sb.s_sbh, "call ext3_journal_dirty_metadata");
err = ext3_journal_dirty_metadata(handle, sb->u.ext3_sb.s_sbh);
sb->s_dirt = 1;
if (err) goto fail;
inode->i_uid = current->fsuid;
if (test_opt (sb, GRPID))
inode->i_gid = dir->i_gid;
else if (dir->i_mode & S_ISGID) {
inode->i_gid = dir->i_gid;
if (S_ISDIR(mode))
mode |= S_ISGID;
} else
inode->i_gid = current->fsgid;
inode->i_mode = mode;
inode->i_ino = j;
/* This is the optimal IO size (for stat), not the fs block size */
inode->i_blksize = PAGE_SIZE;
inode->i_blocks = 0;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
inode->u.ext3_i.i_flags = dir->u.ext3_i.i_flags & ~EXT3_INDEX_FL;
if (S_ISLNK(mode))
inode->u.ext3_i.i_flags &= ~(EXT3_IMMUTABLE_FL|EXT3_APPEND_FL);
#ifdef EXT3_FRAGMENTS
inode->u.ext3_i.i_faddr = 0;
inode->u.ext3_i.i_frag_no = 0;
inode->u.ext3_i.i_frag_size = 0;
#endif
inode->u.ext3_i.i_file_acl = 0;
inode->u.ext3_i.i_dir_acl = 0;
inode->u.ext3_i.i_dtime = 0;
INIT_LIST_HEAD(&inode->u.ext3_i.i_orphan);
#ifdef EXT3_PREALLOCATE
inode->u.ext3_i.i_prealloc_count = 0;
#endif
inode->u.ext3_i.i_block_group = i;
if (inode->u.ext3_i.i_flags & EXT3_SYNC_FL)
inode->i_flags |= S_SYNC;
if (IS_SYNC(inode))
handle->h_sync = 1;
insert_inode_hash(inode);
inode->i_generation = sb->u.ext3_sb.s_next_generation++;
inode->u.ext3_i.i_state = EXT3_STATE_NEW;
err = ext3_mark_inode_dirty(handle, inode);
if (err) goto fail;
unlock_super (sb);
if(DQUOT_ALLOC_INODE(inode)) {
DQUOT_DROP(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
iput(inode);
return ERR_PTR(-EDQUOT);
}
ext3_debug ("allocating inode %lu\n", inode->i_ino);
return inode;
fail:
unlock_super(sb);
iput(inode);
ext3_std_error(sb, err);
return ERR_PTR(err);
}
/*
* There are two policies for allocating an inode. If the new inode is
* a directory, then a forward search is made for a block group with both
* free space and a low directory-to-inode ratio; if that fails, then of
* the groups with above-average free space, that group with the fewest
* directories already is chosen.
*
* For other inodes, search forward from the parent directory's block
* group to find a free inode.
*/
struct inode * ufs_new_inode(struct inode * dir, int mode)
{
struct super_block * sb;
struct ufs_sb_info * sbi;
struct ufs_sb_private_info * uspi;
struct ufs_super_block_first * usb1;
struct ufs_cg_private_info * ucpi;
struct ufs_cylinder_group * ucg;
struct inode * inode;
unsigned cg, bit, i, j, start;
struct ufs_inode_info *ufsi;
UFSD(("ENTER\n"))
/* Cannot create files in a deleted directory */
if (!dir || !dir->i_nlink)
return ERR_PTR(-EPERM);
sb = dir->i_sb;
inode = new_inode(sb);
if (!inode)
return ERR_PTR(-ENOMEM);
ufsi = UFS_I(inode);
sbi = UFS_SB(sb);
uspi = sbi->s_uspi;
usb1 = ubh_get_usb_first(USPI_UBH);
lock_super (sb);
/*
* Try to place the inode in its parent directory
*/
i = ufs_inotocg(dir->i_ino);
if (sbi->fs_cs(i).cs_nifree) {
cg = i;
goto cg_found;
}
/*
* Use a quadratic hash to find a group with a free inode
*/
for ( j = 1; j < uspi->s_ncg; j <<= 1 ) {
i += j;
if (i >= uspi->s_ncg)
i -= uspi->s_ncg;
if (sbi->fs_cs(i).cs_nifree) {
cg = i;
goto cg_found;
}
}
/*
* That failed: try linear search for a free inode
*/
i = ufs_inotocg(dir->i_ino) + 1;
for (j = 2; j < uspi->s_ncg; j++) {
i++;
if (i >= uspi->s_ncg)
i = 0;
if (sbi->fs_cs(i).cs_nifree) {
cg = i;
goto cg_found;
}
}
goto failed;
cg_found:
ucpi = ufs_load_cylinder (sb, cg);
if (!ucpi)
goto failed;
ucg = ubh_get_ucg(UCPI_UBH);
if (!ufs_cg_chkmagic(sb, ucg))
ufs_panic (sb, "ufs_new_inode", "internal error, bad cg magic number");
start = ucpi->c_irotor;
bit = ubh_find_next_zero_bit (UCPI_UBH, ucpi->c_iusedoff, uspi->s_ipg, start);
if (!(bit < uspi->s_ipg)) {
bit = ubh_find_first_zero_bit (UCPI_UBH, ucpi->c_iusedoff, start);
if (!(bit < start)) {
ufs_error (sb, "ufs_new_inode",
"cylinder group %u corrupted - error in inode bitmap\n", cg);
goto failed;
}
}
UFSD(("start = %u, bit = %u, ipg = %u\n", start, bit, uspi->s_ipg))
if (ubh_isclr (UCPI_UBH, ucpi->c_iusedoff, bit))
ubh_setbit (UCPI_UBH, ucpi->c_iusedoff, bit);
else {
ufs_panic (sb, "ufs_new_inode", "internal error");
goto failed;
}
fs32_sub(sb, &ucg->cg_cs.cs_nifree, 1);
fs32_sub(sb, &usb1->fs_cstotal.cs_nifree, 1);
fs32_sub(sb, &sbi->fs_cs(cg).cs_nifree, 1);
if (S_ISDIR(mode)) {
fs32_add(sb, &ucg->cg_cs.cs_ndir, 1);
fs32_add(sb, &usb1->fs_cstotal.cs_ndir, 1);
fs32_add(sb, &sbi->fs_cs(cg).cs_ndir, 1);
}
ubh_mark_buffer_dirty (USPI_UBH);
ubh_mark_buffer_dirty (UCPI_UBH);
if (sb->s_flags & MS_SYNCHRONOUS) {
ubh_wait_on_buffer (UCPI_UBH);
ubh_ll_rw_block (WRITE, 1, (struct ufs_buffer_head **) &ucpi);
ubh_wait_on_buffer (UCPI_UBH);
}
sb->s_dirt = 1;
inode->i_mode = mode;
inode->i_uid = current->fsuid;
if (dir->i_mode & S_ISGID) {
inode->i_gid = dir->i_gid;
if (S_ISDIR(mode))
inode->i_mode |= S_ISGID;
} else
inode->i_gid = current->fsgid;
inode->i_ino = cg * uspi->s_ipg + bit;
inode->i_blksize = PAGE_SIZE; /* This is the optimal IO size (for stat), not the fs block size */
inode->i_blocks = 0;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
ufsi->i_flags = UFS_I(dir)->i_flags;
ufsi->i_lastfrag = 0;
ufsi->i_gen = 0;
ufsi->i_shadow = 0;
ufsi->i_osync = 0;
ufsi->i_oeftflag = 0;
memset(&ufsi->i_u1, 0, sizeof(ufsi->i_u1));
insert_inode_hash(inode);
mark_inode_dirty(inode);
unlock_super (sb);
if (DQUOT_ALLOC_INODE(inode)) {
DQUOT_DROP(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
iput(inode);
return ERR_PTR(-EDQUOT);
}
UFSD(("allocating inode %lu\n", inode->i_ino))
UFSD(("EXIT\n"))
return inode;
failed:
unlock_super (sb);
make_bad_inode(inode);
iput (inode);
UFSD(("EXIT (FAILED)\n"))
return ERR_PTR(-ENOSPC);
}
struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
{
struct super_block *sb = dir->i_sb;
struct udf_sb_info *sbi = UDF_SB(sb);
struct inode *inode;
int block;
uint32_t start = UDF_I(dir)->i_location.logicalBlockNum;
struct udf_inode_info *iinfo;
struct udf_inode_info *dinfo = UDF_I(dir);
inode = new_inode(sb);
if (!inode) {
*err = -ENOMEM;
return NULL;
}
*err = -ENOSPC;
iinfo = UDF_I(inode);
iinfo->i_unique = 0;
iinfo->i_lenExtents = 0;
iinfo->i_next_alloc_block = 0;
iinfo->i_next_alloc_goal = 0;
iinfo->i_strat4096 = 0;
block = udf_new_block(dir->i_sb, NULL,
dinfo->i_location.partitionReferenceNum,
start, err);
if (*err) {
iput(inode);
return NULL;
}
mutex_lock(&sbi->s_alloc_mutex);
if (sbi->s_lvid_bh) {
struct logicalVolIntegrityDesc *lvid =
(struct logicalVolIntegrityDesc *)
sbi->s_lvid_bh->b_data;
struct logicalVolIntegrityDescImpUse *lvidiu =
udf_sb_lvidiu(sbi);
struct logicalVolHeaderDesc *lvhd;
uint64_t uniqueID;
lvhd = (struct logicalVolHeaderDesc *)
(lvid->logicalVolContentsUse);
if (S_ISDIR(mode))
le32_add_cpu(&lvidiu->numDirs, 1);
else
le32_add_cpu(&lvidiu->numFiles, 1);
iinfo->i_unique = uniqueID = le64_to_cpu(lvhd->uniqueID);
if (!(++uniqueID & 0x00000000FFFFFFFFUL))
uniqueID += 16;
lvhd->uniqueID = cpu_to_le64(uniqueID);
mark_buffer_dirty(sbi->s_lvid_bh);
}
inode->i_mode = mode;
inode->i_uid = current->fsuid;
if (dir->i_mode & S_ISGID) {
inode->i_gid = dir->i_gid;
if (S_ISDIR(mode))
mode |= S_ISGID;
} else {
inode->i_gid = current->fsgid;
}
iinfo->i_location.logicalBlockNum = block;
iinfo->i_location.partitionReferenceNum =
dinfo->i_location.partitionReferenceNum;
inode->i_ino = udf_get_lb_pblock(sb, iinfo->i_location, 0);
inode->i_blocks = 0;
iinfo->i_lenEAttr = 0;
iinfo->i_lenAlloc = 0;
iinfo->i_use = 0;
if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE)) {
iinfo->i_efe = 1;
if (UDF_VERS_USE_EXTENDED_FE > sbi->s_udfrev)
sbi->s_udfrev = UDF_VERS_USE_EXTENDED_FE;
iinfo->i_ext.i_data = kzalloc(inode->i_sb->s_blocksize -
sizeof(struct extendedFileEntry),
GFP_KERNEL);
} else {
iinfo->i_efe = 0;
iinfo->i_ext.i_data = kzalloc(inode->i_sb->s_blocksize -
sizeof(struct fileEntry),
GFP_KERNEL);
}
if (!iinfo->i_ext.i_data) {
iput(inode);
*err = -ENOMEM;
mutex_unlock(&sbi->s_alloc_mutex);
return NULL;
}
if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB))
iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
else if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
iinfo->i_alloc_type = ICBTAG_FLAG_AD_SHORT;
else
iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG;
inode->i_mtime = inode->i_atime = inode->i_ctime =
iinfo->i_crtime = current_fs_time(inode->i_sb);
insert_inode_hash(inode);
mark_inode_dirty(inode);
mutex_unlock(&sbi->s_alloc_mutex);
if (DQUOT_ALLOC_INODE(inode)) {
DQUOT_DROP(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
iput(inode);
*err = -EDQUOT;
return NULL;
}
*err = 0;
return inode;
}
/*
* Rename a file
* N.B. After this call _both_ ffhp and tfhp need an fh_put
*/
int
nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen,
struct svc_fh *tfhp, char *tname, int tlen)
{
struct dentry *fdentry, *tdentry, *odentry, *ndentry;
struct inode *fdir, *tdir;
int err;
err = fh_verify(rqstp, ffhp, S_IFDIR, MAY_REMOVE);
if (err)
goto out;
err = fh_verify(rqstp, tfhp, S_IFDIR, MAY_CREATE);
if (err)
goto out;
fdentry = ffhp->fh_dentry;
fdir = fdentry->d_inode;
tdentry = tfhp->fh_dentry;
tdir = tdentry->d_inode;
/* N.B. We shouldn't need this ... dentry layer handles it */
err = nfserr_perm;
if (!flen || (fname[0] == '.' &&
(flen == 1 || (flen == 2 && fname[1] == '.'))) ||
!tlen || (tname[0] == '.' &&
(tlen == 1 || (tlen == 2 && tname[1] == '.'))))
goto out;
odentry = lookup_dentry(fname, dget(fdentry), 0);
err = PTR_ERR(odentry);
if (IS_ERR(odentry))
goto out_nfserr;
err = -ENOENT;
if (!odentry->d_inode)
goto out_dput_old;
ndentry = lookup_dentry(tname, dget(tdentry), 0);
err = PTR_ERR(ndentry);
if (IS_ERR(ndentry))
goto out_dput_old;
/*
* Lock the parent directories.
*/
nfsd_double_down(&tdir->i_sem, &fdir->i_sem);
err = -ENOENT;
/* GAM3 check for parent changes after locking. */
if (check_parent(fdir, odentry) &&
check_parent(tdir, ndentry)) {
err = vfs_rename(fdir, odentry, tdir, ndentry);
if (!err && EX_ISSYNC(tfhp->fh_export)) {
write_inode_now(fdir);
write_inode_now(tdir);
}
} else
dprintk("nfsd: Caught race in nfsd_rename");
DQUOT_DROP(fdir);
DQUOT_DROP(tdir);
nfsd_double_up(&tdir->i_sem, &fdir->i_sem);
dput(ndentry);
out_dput_old:
dput(odentry);
if (err)
goto out_nfserr;
out:
return err;
out_nfserr:
err = nfserrno(-err);
goto out;
}
struct inode * udf_new_inode (struct inode *dir, int mode, int * err)
{
struct super_block *sb;
struct inode * inode;
int block;
Uint32 start = UDF_I_LOCATION(dir).logicalBlockNum;
sb = dir->i_sb;
inode = new_inode(sb);
if (!inode)
{
*err = -ENOMEM;
return NULL;
}
*err = -ENOSPC;
block = udf_new_block(dir->i_sb, NULL, UDF_I_LOCATION(dir).partitionReferenceNum,
start, err);
if (*err)
{
iput(inode);
return NULL;
}
lock_super(sb);
if (UDF_SB_LVIDBH(sb))
{
struct LogicalVolHeaderDesc *lvhd;
Uint64 uniqueID;
lvhd = (struct LogicalVolHeaderDesc *)(UDF_SB_LVID(sb)->logicalVolContentsUse);
if (S_ISDIR(mode))
UDF_SB_LVIDIU(sb)->numDirs =
cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs) + 1);
else
UDF_SB_LVIDIU(sb)->numFiles =
cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) + 1);
UDF_I_UNIQUE(inode) = uniqueID = le64_to_cpu(lvhd->uniqueID);
if (!(++uniqueID & 0x00000000FFFFFFFFUL))
uniqueID += 16;
lvhd->uniqueID = cpu_to_le64(uniqueID);
mark_buffer_dirty(UDF_SB_LVIDBH(sb));
}
inode->i_mode = mode;
inode->i_uid = current->fsuid;
if (dir->i_mode & S_ISGID)
{
inode->i_gid = dir->i_gid;
if (S_ISDIR(mode))
mode |= S_ISGID;
}
else
inode->i_gid = current->fsgid;
UDF_I_LOCATION(inode).logicalBlockNum = block;
UDF_I_LOCATION(inode).partitionReferenceNum = UDF_I_LOCATION(dir).partitionReferenceNum;
inode->i_ino = udf_get_lb_pblock(sb, UDF_I_LOCATION(inode), 0);
inode->i_blksize = PAGE_SIZE;
inode->i_blocks = 0;
UDF_I_LENEATTR(inode) = 0;
UDF_I_LENALLOC(inode) = 0;
if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE))
{
UDF_I_EXTENDED_FE(inode) = 1;
UDF_UPDATE_UDFREV(inode->i_sb, UDF_VERS_USE_EXTENDED_FE);
}
else
UDF_I_EXTENDED_FE(inode) = 0;
if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB))
UDF_I_ALLOCTYPE(inode) = ICB_FLAG_AD_IN_ICB;
else if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
UDF_I_ALLOCTYPE(inode) = ICB_FLAG_AD_SHORT;
else
UDF_I_ALLOCTYPE(inode) = ICB_FLAG_AD_LONG;
inode->i_mtime = inode->i_atime = inode->i_ctime =
UDF_I_CRTIME(inode) = CURRENT_TIME;
UDF_I_UMTIME(inode) = UDF_I_UCTIME(inode) =
UDF_I_UCRTIME(inode) = CURRENT_UTIME;
UDF_I_NEW_INODE(inode) = 1;
insert_inode_hash(inode);
mark_inode_dirty(inode);
unlock_super(sb);
if (DQUOT_ALLOC_INODE(inode))
{
DQUOT_DROP(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
iput(inode);
*err = -EDQUOT;
return NULL;
}
*err = 0;
return inode;
}
/*
* NOTE! When we get the inode, we're the only people
* that have access to it, and as such there are no
* race conditions we have to worry about. The inode
* is not on the hash-lists, and it cannot be reached
* through the filesystem because the directory entry
* has been deleted earlier.
*
* HOWEVER: we must make sure that we get no aliases,
* which means that we have to call "clear_inode()"
* _before_ we mark the inode not in use in the inode
* bitmaps. Otherwise a newly created file might use
* the same inode number (not actually the same pointer
* though), and then we'd have two inodes sharing the
* same inode number and space on the harddisk.
*/
void ext2_free_inode (struct inode * inode)
{
struct super_block * sb = inode->i_sb;
int is_directory;
unsigned long ino;
struct buffer_head * bh;
struct buffer_head * bh2;
unsigned long block_group;
unsigned long bit;
struct ext2_group_desc * desc;
struct ext2_super_block * es;
ino = inode->i_ino;
ext2_debug ("freeing inode %lu\n", ino);
/*
* Note: we must free any quota before locking the superblock,
* as writing the quota to disk may need the lock as well.
*/
if (!is_bad_inode(inode)) {
/* Quota is already initialized in iput() */
DQUOT_FREE_INODE(inode);
DQUOT_DROP(inode);
}
lock_super (sb);
es = sb->u.ext2_sb.s_es;
is_directory = S_ISDIR(inode->i_mode);
/* Do this BEFORE marking the inode not in use or returning an error */
clear_inode (inode);
if (ino < EXT2_FIRST_INO(sb) ||
ino > le32_to_cpu(es->s_inodes_count)) {
ext2_error (sb, "ext2_free_inode",
"reserved or nonexistent inode %lu", ino);
goto error_return;
}
block_group = (ino - 1) / EXT2_INODES_PER_GROUP(sb);
bit = (ino - 1) % EXT2_INODES_PER_GROUP(sb);
bh = load_inode_bitmap (sb, block_group);
if (IS_ERR(bh))
goto error_return;
/* Ok, now we can actually update the inode bitmaps.. */
if (!ext2_clear_bit (bit, bh->b_data))
ext2_error (sb, "ext2_free_inode",
"bit already cleared for inode %lu", ino);
else {
desc = ext2_get_group_desc (sb, block_group, &bh2);
if (desc) {
desc->bg_free_inodes_count =
cpu_to_le16(le16_to_cpu(desc->bg_free_inodes_count) + 1);
if (is_directory)
desc->bg_used_dirs_count =
cpu_to_le16(le16_to_cpu(desc->bg_used_dirs_count) - 1);
}
mark_buffer_dirty(bh2);
es->s_free_inodes_count =
cpu_to_le32(le32_to_cpu(es->s_free_inodes_count) + 1);
mark_buffer_dirty(sb->u.ext2_sb.s_sbh);
}
mark_buffer_dirty(bh);
if (sb->s_flags & MS_SYNCHRONOUS) {
ll_rw_block (WRITE, 1, &bh);
wait_on_buffer (bh);
}
sb->s_dirt = 1;
error_return:
unlock_super (sb);
}
/*
* Unlink a file or directory
* N.B. After this call fhp needs an fh_put
*/
int
nfsd_unlink(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
char *fname, int flen)
{
struct dentry *dentry, *rdentry;
struct inode *dirp;
int err;
/* N.B. We shouldn't need this test ... handled by dentry layer */
err = nfserr_acces;
if (!flen || isdotent(fname, flen))
goto out;
err = fh_verify(rqstp, fhp, S_IFDIR, MAY_REMOVE);
if (err)
goto out;
dentry = fhp->fh_dentry;
dirp = dentry->d_inode;
rdentry = lookup_dentry(fname, dget(dentry), 0);
err = PTR_ERR(rdentry);
if (IS_ERR(rdentry))
goto out_nfserr;
if (!rdentry->d_inode) {
dput(rdentry);
err = nfserr_noent;
goto out;
}
if (type != S_IFDIR) {
/* It's UNLINK */
err = fh_lock_parent(fhp, rdentry);
if (err)
goto out;
err = vfs_unlink(dirp, rdentry);
DQUOT_DROP(dirp);
fh_unlock(fhp);
dput(rdentry);
} else {
/* It's RMDIR */
/* See comments in fs/namei.c:do_rmdir */
rdentry->d_count++;
nfsd_double_down(&dirp->i_sem, &rdentry->d_inode->i_sem);
if (!fhp->fh_pre_mtime)
fhp->fh_pre_mtime = dirp->i_mtime;
fhp->fh_locked = 1;
err = -ENOENT;
if (check_parent(dirp, rdentry))
err = vfs_rmdir(dirp, rdentry);
rdentry->d_count--;
DQUOT_DROP(dirp);
if (!fhp->fh_post_version)
fhp->fh_post_version = dirp->i_version;
fhp->fh_locked = 0;
nfsd_double_up(&dirp->i_sem, &rdentry->d_inode->i_sem);
dput(rdentry);
}
if (err)
goto out_nfserr;
if (EX_ISSYNC(fhp->fh_export))
write_inode_now(dirp);
out:
return err;
out_nfserr:
err = nfserrno(-err);
goto out;
}
/*
* NOTE! When we get the inode, we're the only people
* that have access to it, and as such there are no
* race conditions we have to worry about. The inode
* is not on the hash-lists, and it cannot be reached
* through the filesystem because the directory entry
* has been deleted earlier.
*
* HOWEVER: we must make sure that we get no aliases,
* which means that we have to call "clear_inode()"
* _before_ we mark the inode not in use in the inode
* bitmaps. Otherwise a newly created file might use
* the same inode number (not actually the same pointer
* though), and then we'd have two inodes sharing the
* same inode number and space on the harddisk.
*/
void ext3_free_inode (handle_t *handle, struct inode * inode)
{
struct super_block * sb = inode->i_sb;
int is_directory;
unsigned long ino;
struct buffer_head *bitmap_bh = NULL;
struct buffer_head *bh2;
unsigned long block_group;
unsigned long bit;
struct ext3_group_desc * gdp;
struct ext3_super_block * es;
struct ext3_sb_info *sbi;
int fatal = 0, err;
if (atomic_read(&inode->i_count) > 1) {
printk ("ext3_free_inode: inode has count=%d\n",
atomic_read(&inode->i_count));
return;
}
if (inode->i_nlink) {
printk ("ext3_free_inode: inode has nlink=%d\n",
inode->i_nlink);
return;
}
if (!sb) {
printk("ext3_free_inode: inode on nonexistent device\n");
return;
}
sbi = EXT3_SB(sb);
ino = inode->i_ino;
ext3_debug ("freeing inode %lu\n", ino);
/*
* Note: we must free any quota before locking the superblock,
* as writing the quota to disk may need the lock as well.
*/
DQUOT_INIT(inode);
ext3_xattr_delete_inode(handle, inode);
DQUOT_FREE_INODE(inode);
DQUOT_DROP(inode);
is_directory = S_ISDIR(inode->i_mode);
/* Do this BEFORE marking the inode not in use or returning an error */
clear_inode (inode);
es = EXT3_SB(sb)->s_es;
if (ino < EXT3_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
ext3_error (sb, "ext3_free_inode",
"reserved or nonexistent inode %lu", ino);
goto error_return;
}
block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
bit = (ino - 1) % EXT3_INODES_PER_GROUP(sb);
bitmap_bh = read_inode_bitmap(sb, block_group);
if (!bitmap_bh)
goto error_return;
BUFFER_TRACE(bitmap_bh, "get_write_access");
fatal = ext3_journal_get_write_access(handle, bitmap_bh);
if (fatal)
goto error_return;
/* Ok, now we can actually update the inode bitmaps.. */
if (!ext3_clear_bit_atomic(sb_bgl_lock(sbi, block_group),
bit, bitmap_bh->b_data))
ext3_error (sb, "ext3_free_inode",
"bit already cleared for inode %lu", ino);
else {
gdp = ext3_get_group_desc (sb, block_group, &bh2);
BUFFER_TRACE(bh2, "get_write_access");
fatal = ext3_journal_get_write_access(handle, bh2);
if (fatal) goto error_return;
if (gdp) {
spin_lock(sb_bgl_lock(sbi, block_group));
gdp->bg_free_inodes_count = cpu_to_le16(
le16_to_cpu(gdp->bg_free_inodes_count) + 1);
if (is_directory)
gdp->bg_used_dirs_count = cpu_to_le16(
le16_to_cpu(gdp->bg_used_dirs_count) - 1);
spin_unlock(sb_bgl_lock(sbi, block_group));
percpu_counter_inc(&sbi->s_freeinodes_counter);
if (is_directory)
percpu_counter_dec(&sbi->s_dirs_counter);
}
BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
err = ext3_journal_dirty_metadata(handle, bh2);
if (!fatal) fatal = err;
}
BUFFER_TRACE(bitmap_bh, "call ext3_journal_dirty_metadata");
err = ext3_journal_dirty_metadata(handle, bitmap_bh);
if (!fatal)
fatal = err;
sb->s_dirt = 1;
error_return:
brelse(bitmap_bh);
ext3_std_error(sb, fatal);
}
/*
* NOTE! When we get the inode, we're the only people
* that have access to it, and as such there are no
* race conditions we have to worry about. The inode
* is not on the hash-lists, and it cannot be reached
* through the filesystem because the directory entry
* has been deleted earlier.
*
* HOWEVER: we must make sure that we get no aliases,
* which means that we have to call "clear_inode()"
* _before_ we mark the inode not in use in the inode
* bitmaps. Otherwise a newly created file might use
* the same inode number (not actually the same pointer
* though), and then we'd have two inodes sharing the
* same inode number and space on the harddisk.
*/
void ext2_free_inode (struct inode * inode)
{
struct super_block * sb = inode->i_sb;
int is_directory;
unsigned long ino;
struct buffer_head * bh;
struct buffer_head * bh2;
unsigned long block_group;
unsigned long bit;
int bitmap_nr;
struct ext2_group_desc * gdp;
struct ext2_super_block * es;
if (!inode->i_dev) {
printk ("ext2_free_inode: inode has no device\n");
return;
}
if (inode->i_count > 1) {
printk ("ext2_free_inode: inode has count=%d\n", inode->i_count);
return;
}
if (inode->i_nlink) {
printk ("ext2_free_inode: inode has nlink=%d\n",
(int) inode->i_nlink);
return;
}
if (!sb) {
printk("ext2_free_inode: inode on nonexistent device\n");
return;
}
ino = inode->i_ino;
ext2_debug ("freeing inode %lu\n", ino);
/*
* Note: we must free any quota before locking the superblock,
* as writing the quota to disk may need the lock as well.
*/
DQUOT_FREE_INODE(sb, inode);
DQUOT_DROP(inode);
lock_super (sb);
es = sb->u.ext2_sb.s_es;
if (ino < EXT2_FIRST_INO(sb) ||
ino > le32_to_cpu(es->s_inodes_count)) {
ext2_error (sb, "free_inode",
"reserved inode or nonexistent inode");
goto error_return;
}
block_group = (ino - 1) / EXT2_INODES_PER_GROUP(sb);
bit = (ino - 1) % EXT2_INODES_PER_GROUP(sb);
bitmap_nr = load_inode_bitmap (sb, block_group);
if (bitmap_nr < 0)
goto error_return;
bh = sb->u.ext2_sb.s_inode_bitmap[bitmap_nr];
is_directory = S_ISDIR(inode->i_mode);
/* Do this BEFORE marking the inode not in use */
clear_inode (inode);
/* Ok, now we can actually update the inode bitmaps.. */
if (!ext2_clear_bit (bit, bh->b_data))
ext2_warning (sb, "ext2_free_inode",
"bit already cleared for inode %lu", ino);
else {
gdp = ext2_get_group_desc (sb, block_group, &bh2);
if (gdp) {
gdp->bg_free_inodes_count =
cpu_to_le16(le16_to_cpu(gdp->bg_free_inodes_count) + 1);
if (is_directory)
gdp->bg_used_dirs_count =
cpu_to_le16(le16_to_cpu(gdp->bg_used_dirs_count) - 1);
}
mark_buffer_dirty(bh2, 1);
es->s_free_inodes_count =
cpu_to_le32(le32_to_cpu(es->s_free_inodes_count) + 1);
mark_buffer_dirty(sb->u.ext2_sb.s_sbh, 1);
}
mark_buffer_dirty(bh, 1);
if (sb->s_flags & MS_SYNCHRONOUS) {
ll_rw_block (WRITE, 1, &bh);
wait_on_buffer (bh);
}
sb->s_dirt = 1;
error_return:
unlock_super (sb);
}
/*
* Create a file (regular, directory, device, fifo); UNIX sockets
* not yet implemented.
* If the response fh has been verified, the parent directory should
* already be locked. Note that the parent directory is left locked.
*
* N.B. Every call to nfsd_create needs an fh_put for _both_ fhp and resfhp
*/
int
nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
char *fname, int flen, struct iattr *iap,
int type, dev_t rdev, struct svc_fh *resfhp)
{
struct dentry *dentry, *dchild;
struct inode *dirp;
nfsd_dirop_t opfunc = NULL;
int err;
err = nfserr_perm;
if (!flen)
goto out;
err = fh_verify(rqstp, fhp, S_IFDIR, MAY_CREATE);
if (err)
goto out;
dentry = fhp->fh_dentry;
dirp = dentry->d_inode;
err = nfserr_notdir;
if(!dirp->i_op || !dirp->i_op->lookup)
goto out;
/*
* Check whether the response file handle has been verified yet.
* If it has, the parent directory should already be locked.
*/
if (!resfhp->fh_dverified) {
dchild = lookup_dentry(fname, dget(dentry), 0);
err = PTR_ERR(dchild);
if (IS_ERR(dchild))
goto out_nfserr;
fh_compose(resfhp, fhp->fh_export, dchild);
/* Lock the parent and check for errors ... */
err = fh_lock_parent(fhp, dchild);
if (err)
goto out;
} else {
dchild = resfhp->fh_dentry;
if (!fhp->fh_locked)
printk(KERN_ERR
"nfsd_create: parent %s/%s not locked!\n",
dentry->d_parent->d_name.name,
dentry->d_name.name);
}
/*
* Make sure the child dentry is still negative ...
*/
err = nfserr_exist;
if (dchild->d_inode) {
printk(KERN_WARNING
"nfsd_create: dentry %s/%s not negative!\n",
dentry->d_name.name, dchild->d_name.name);
goto out;
}
/*
* Get the dir op function pointer.
*/
err = nfserr_perm;
switch (type) {
case S_IFREG:
opfunc = (nfsd_dirop_t) dirp->i_op->create;
break;
case S_IFDIR:
opfunc = (nfsd_dirop_t) dirp->i_op->mkdir;
break;
case S_IFCHR:
case S_IFBLK:
/* The client is _NOT_ required to do security enforcement */
if(!capable(CAP_SYS_ADMIN))
{
err = -EPERM;
goto out;
}
case S_IFIFO:
case S_IFSOCK:
opfunc = dirp->i_op->mknod;
break;
}
if (!opfunc)
goto out;
if (!(iap->ia_valid & ATTR_MODE))
iap->ia_mode = 0;
/*
* Call the dir op function to create the object.
*/
DQUOT_INIT(dirp);
err = opfunc(dirp, dchild, iap->ia_mode, rdev);
DQUOT_DROP(dirp);
if (err < 0)
goto out_nfserr;
if (EX_ISSYNC(fhp->fh_export))
write_inode_now(dirp);
/*
* Update the file handle to get the new inode info.
*/
fh_update(resfhp);
/* Set file attributes. Mode has already been set and
* setting uid/gid works only for root. Irix appears to
* send along the gid when it tries to implement setgid
* directories via NFS.
*/
err = 0;
if ((iap->ia_valid &= (ATTR_UID|ATTR_GID|ATTR_MODE)) != 0)
err = nfsd_setattr(rqstp, resfhp, iap);
out:
return err;
out_nfserr:
err = nfserrno(-err);
goto out;
}
/*
* Create a hardlink
* N.B. After this call _both_ ffhp and tfhp need an fh_put
*/
int
nfsd_link(struct svc_rqst *rqstp, struct svc_fh *ffhp,
char *fname, int len, struct svc_fh *tfhp)
{
struct dentry *ddir, *dnew, *dold;
struct inode *dirp, *dest;
int err;
err = fh_verify(rqstp, ffhp, S_IFDIR, MAY_CREATE);
if (err)
goto out;
err = fh_verify(rqstp, tfhp, S_IFREG, MAY_NOP);
if (err)
goto out;
err = nfserr_perm;
if (!len)
goto out;
ddir = ffhp->fh_dentry;
dirp = ddir->d_inode;
dnew = lookup_dentry(fname, dget(ddir), 0);
err = PTR_ERR(dnew);
if (IS_ERR(dnew))
goto out_nfserr;
/*
* Lock the parent before checking for existence
*/
err = fh_lock_parent(ffhp, dnew);
if (err)
goto out_dput;
err = nfserr_exist;
if (dnew->d_inode)
goto out_unlock;
dold = tfhp->fh_dentry;
dest = dold->d_inode;
err = nfserr_acces;
if (nfsd_iscovered(ddir, ffhp->fh_export))
goto out_unlock;
/* FIXME: nxdev for NFSv3 */
if (dirp->i_dev != dest->i_dev)
goto out_unlock;
err = nfserr_perm;
if (IS_IMMUTABLE(dest) /* || IS_APPEND(dest) */ )
goto out_unlock;
if (!dirp->i_op || !dirp->i_op->link)
goto out_unlock;
DQUOT_INIT(dirp);
err = dirp->i_op->link(dold, dirp, dnew);
DQUOT_DROP(dirp);
if (!err) {
if (EX_ISSYNC(ffhp->fh_export)) {
write_inode_now(dirp);
write_inode_now(dest);
}
} else
err = nfserrno(-err);
out_unlock:
fh_unlock(ffhp);
out_dput:
dput(dnew);
out:
return err;
out_nfserr:
err = nfserrno(-err);
goto out;
}
/*
* Create a symlink and look up its inode
* N.B. After this call _both_ fhp and resfhp need an fh_put
*/
int
nfsd_symlink(struct svc_rqst *rqstp, struct svc_fh *fhp,
char *fname, int flen,
char *path, int plen,
struct svc_fh *resfhp)
{
struct dentry *dentry, *dnew;
struct inode *dirp;
int err;
err = nfserr_noent;
if (!flen || !plen)
goto out;
err = fh_verify(rqstp, fhp, S_IFDIR, MAY_CREATE);
if (err)
goto out;
dentry = fhp->fh_dentry;
err = nfserr_perm;
if (nfsd_iscovered(dentry, fhp->fh_export))
goto out;
dirp = dentry->d_inode;
if (!dirp->i_op || !dirp->i_op->symlink)
goto out;
dnew = lookup_dentry(fname, dget(dentry), 0);
err = PTR_ERR(dnew);
if (IS_ERR(dnew))
goto out_nfserr;
/*
* Lock the parent before checking for existence
*/
err = fh_lock_parent(fhp, dnew);
if (err)
goto out_compose;
err = nfserr_exist;
if (!dnew->d_inode) {
DQUOT_INIT(dirp);
err = dirp->i_op->symlink(dirp, dnew, path);
DQUOT_DROP(dirp);
if (!err) {
if (EX_ISSYNC(fhp->fh_export))
write_inode_now(dirp);
} else
err = nfserrno(-err);
}
fh_unlock(fhp);
/* Compose the fh so the dentry will be freed ... */
out_compose:
fh_compose(resfhp, fhp->fh_export, dnew);
out:
return err;
out_nfserr:
err = nfserrno(-err);
goto out;
}
/*
* NAME: ialloc()
*
* FUNCTION: Allocate a new inode
*
*/
struct inode *ialloc(struct inode *parent, umode_t mode)
{
struct super_block *sb = parent->i_sb;
struct inode *inode;
struct jfs_inode_info *jfs_inode;
int rc;
inode = new_inode(sb);
if (!inode) {
jfs_warn("ialloc: new_inode returned NULL!");
return ERR_PTR(-ENOMEM);
}
jfs_inode = JFS_IP(inode);
rc = diAlloc(parent, S_ISDIR(mode), inode);
if (rc) {
jfs_warn("ialloc: diAlloc returned %d!", rc);
if (rc == -EIO)
make_bad_inode(inode);
iput(inode);
return ERR_PTR(rc);
}
inode->i_uid = current_fsuid();
if (parent->i_mode & S_ISGID) {
inode->i_gid = parent->i_gid;
if (S_ISDIR(mode))
mode |= S_ISGID;
} else
inode->i_gid = current_fsgid();
/*
* New inodes need to save sane values on disk when
* uid & gid mount options are used
*/
jfs_inode->saved_uid = inode->i_uid;
jfs_inode->saved_gid = inode->i_gid;
/*
* Allocate inode to quota.
*/
if (DQUOT_ALLOC_INODE(inode)) {
DQUOT_DROP(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
iput(inode);
return ERR_PTR(-EDQUOT);
}
inode->i_mode = mode;
/* inherit flags from parent */
jfs_inode->mode2 = JFS_IP(parent)->mode2 & JFS_FL_INHERIT;
if (S_ISDIR(mode)) {
jfs_inode->mode2 |= IDIRECTORY;
jfs_inode->mode2 &= ~JFS_DIRSYNC_FL;
}
else {
jfs_inode->mode2 |= INLINEEA | ISPARSE;
if (S_ISLNK(mode))
jfs_inode->mode2 &= ~(JFS_IMMUTABLE_FL|JFS_APPEND_FL);
}
jfs_inode->mode2 |= mode;
inode->i_blocks = 0;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
jfs_inode->otime = inode->i_ctime.tv_sec;
inode->i_generation = JFS_SBI(sb)->gengen++;
jfs_inode->cflag = 0;
/* Zero remaining fields */
memset(&jfs_inode->acl, 0, sizeof(dxd_t));
memset(&jfs_inode->ea, 0, sizeof(dxd_t));
jfs_inode->next_index = 0;
jfs_inode->acltype = 0;
jfs_inode->btorder = 0;
jfs_inode->btindex = 0;
jfs_inode->bxflag = 0;
jfs_inode->blid = 0;
jfs_inode->atlhead = 0;
jfs_inode->atltail = 0;
jfs_inode->xtlid = 0;
jfs_set_inode_flags(inode);
jfs_info("ialloc returns inode = 0x%p\n", inode);
return inode;
}
struct inode * udf_new_inode (struct inode *dir, int mode, int * err)
{
struct super_block *sb = dir->i_sb;
struct udf_sb_info *sbi = UDF_SB(sb);
struct inode * inode;
int block;
uint32_t start = UDF_I_LOCATION(dir).logicalBlockNum;
inode = new_inode(sb);
if (!inode)
{
*err = -ENOMEM;
return NULL;
}
*err = -ENOSPC;
block = udf_new_block(dir->i_sb, NULL, UDF_I_LOCATION(dir).partitionReferenceNum,
start, err);
if (*err)
{
iput(inode);
return NULL;
}
lock_udf_alloc_sem(sbi);
UDF_I_UNIQUE(inode) = 0;
UDF_I_LENEXTENTS(inode) = 0;
UDF_I_NEXT_ALLOC_BLOCK(inode) = 0;
UDF_I_NEXT_ALLOC_GOAL(inode) = 0;
UDF_I_STRAT4096(inode) = 0;
if (UDF_SB_LVIDBH(sb))
{
struct logicalVolHeaderDesc *lvhd;
uint64_t uniqueID;
lvhd = (struct logicalVolHeaderDesc *)(UDF_SB_LVID(sb)->logicalVolContentsUse);
if (S_ISDIR(mode))
UDF_SB_LVIDIU(sb)->numDirs =
cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs) + 1);
else
UDF_SB_LVIDIU(sb)->numFiles =
cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) + 1);
UDF_I_UNIQUE(inode) = uniqueID = le64_to_cpu(lvhd->uniqueID);
if (!(++uniqueID & 0x00000000FFFFFFFFUL))
uniqueID += 16;
lvhd->uniqueID = cpu_to_le64(uniqueID);
mark_buffer_dirty(UDF_SB_LVIDBH(sb));
}
inode->i_mode = mode;
inode->i_uid = current->fsuid;
if (dir->i_mode & S_ISGID)
{
inode->i_gid = dir->i_gid;
if (S_ISDIR(mode))
mode |= S_ISGID;
}
else
inode->i_gid = current->fsgid;
UDF_I_LOCATION(inode).logicalBlockNum = block;
UDF_I_LOCATION(inode).partitionReferenceNum = UDF_I_LOCATION(dir).partitionReferenceNum;
inode->i_ino = udf_get_lb_pblock(sb, UDF_I_LOCATION(inode), 0);
inode->i_blksize = PAGE_SIZE;
inode->i_blocks = 0;
UDF_I_LENEATTR(inode) = 0;
UDF_I_LENALLOC(inode) = 0;
UDF_I_USE(inode) = 0;
if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE))
{
UDF_I_EFE(inode) = 1;
UDF_UPDATE_UDFREV(inode->i_sb, UDF_VERS_USE_EXTENDED_FE);
UDF_I_DATA(inode) = kmalloc(inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry), GFP_KERNEL);
memset(UDF_I_DATA(inode), 0x00, inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry));
}
else
{
UDF_I_EFE(inode) = 0;
UDF_I_DATA(inode) = kmalloc(inode->i_sb->s_blocksize - sizeof(struct fileEntry), GFP_KERNEL);
memset(UDF_I_DATA(inode), 0x00, inode->i_sb->s_blocksize - sizeof(struct fileEntry));
}
if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB))
UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_IN_ICB;
else if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_SHORT;
else
UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_LONG;
inode->i_mtime = inode->i_atime = inode->i_ctime =
UDF_I_CRTIME(inode) = current_fs_time(inode->i_sb);
insert_inode_hash(inode);
mark_inode_dirty(inode);
unlock_udf_alloc_sem(sbi);
if (DQUOT_ALLOC_INODE(inode))
{
DQUOT_DROP(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
iput(inode);
*err = -EDQUOT;
return NULL;
}
*err = 0;
return inode;
}
struct inode * ext2_new_inode (const struct inode * dir, int mode)
{
struct super_block * sb;
struct buffer_head * bh;
struct buffer_head * bh2;
int group, i;
ino_t ino;
struct inode * inode;
struct ext2_group_desc * desc;
struct ext2_super_block * es;
int err;
sb = dir->i_sb;
inode = new_inode(sb);
if (!inode)
return ERR_PTR(-ENOMEM);
lock_super (sb);
es = sb->u.ext2_sb.s_es;
repeat:
if (S_ISDIR(mode))
group = find_group_dir(sb, dir->u.ext2_i.i_block_group);
else
group = find_group_other(sb, dir->u.ext2_i.i_block_group);
err = -ENOSPC;
if (group == -1)
goto fail;
err = -EIO;
bh = load_inode_bitmap (sb, group);
if (IS_ERR(bh))
goto fail2;
i = ext2_find_first_zero_bit ((unsigned long *) bh->b_data,
EXT2_INODES_PER_GROUP(sb));
if (i >= EXT2_INODES_PER_GROUP(sb))
goto bad_count;
ext2_set_bit (i, bh->b_data);
mark_buffer_dirty(bh);
if (sb->s_flags & MS_SYNCHRONOUS) {
ll_rw_block (WRITE, 1, &bh);
wait_on_buffer (bh);
}
ino = group * EXT2_INODES_PER_GROUP(sb) + i + 1;
if (ino < EXT2_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
ext2_error (sb, "ext2_new_inode",
"reserved inode or inode > inodes count - "
"block_group = %d,inode=%ld", group, ino);
err = -EIO;
goto fail2;
}
es->s_free_inodes_count =
cpu_to_le32(le32_to_cpu(es->s_free_inodes_count) - 1);
mark_buffer_dirty(sb->u.ext2_sb.s_sbh);
sb->s_dirt = 1;
inode->i_uid = current->fsuid;
if (test_opt (sb, GRPID))
inode->i_gid = dir->i_gid;
else if (dir->i_mode & S_ISGID) {
inode->i_gid = dir->i_gid;
if (S_ISDIR(mode))
mode |= S_ISGID;
} else
inode->i_gid = current->fsgid;
inode->i_mode = mode;
inode->i_ino = ino;
inode->i_blksize = PAGE_SIZE; /* This is the optimal IO size (for stat), not the fs block size */
inode->i_blocks = 0;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
inode->u.ext2_i.i_new_inode = 1;
inode->u.ext2_i.i_flags = dir->u.ext2_i.i_flags & ~EXT2_BTREE_FL;
if (S_ISLNK(mode))
inode->u.ext2_i.i_flags &= ~(EXT2_IMMUTABLE_FL|EXT2_APPEND_FL);
inode->u.ext2_i.i_block_group = group;
if (inode->u.ext2_i.i_flags & EXT2_SYNC_FL)
inode->i_flags |= S_SYNC;
insert_inode_hash(inode);
inode->i_generation = event++;
mark_inode_dirty(inode);
unlock_super (sb);
if(DQUOT_ALLOC_INODE(inode)) {
DQUOT_DROP(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
iput(inode);
return ERR_PTR(-EDQUOT);
}
ext2_debug ("allocating inode %lu\n", inode->i_ino);
return inode;
fail2:
desc = ext2_get_group_desc (sb, group, &bh2);
desc->bg_free_inodes_count =
cpu_to_le16(le16_to_cpu(desc->bg_free_inodes_count) + 1);
if (S_ISDIR(mode))
desc->bg_used_dirs_count =
cpu_to_le16(le16_to_cpu(desc->bg_used_dirs_count) - 1);
mark_buffer_dirty(bh2);
fail:
unlock_super(sb);
make_bad_inode(inode);
iput(inode);
return ERR_PTR(err);
bad_count:
ext2_error (sb, "ext2_new_inode",
"Free inodes count corrupted in group %d",
group);
/* Is it really ENOSPC? */
err = -ENOSPC;
if (sb->s_flags & MS_RDONLY)
goto fail;
desc = ext2_get_group_desc (sb, group, &bh2);
desc->bg_free_inodes_count = 0;
mark_buffer_dirty(bh2);
goto repeat;
}
/*
* NAME: ialloc()
*
* FUNCTION: Allocate a new inode
*
*/
struct inode *ialloc(struct inode *parent, umode_t mode)
{
struct super_block *sb = parent->i_sb;
struct inode *inode;
struct jfs_inode_info *jfs_inode;
int rc;
inode = new_inode(sb);
if (!inode) {
jfs_warn("ialloc: new_inode returned NULL!");
return inode;
}
jfs_inode = JFS_IP(inode);
rc = diAlloc(parent, S_ISDIR(mode), inode);
if (rc) {
jfs_warn("ialloc: diAlloc returned %d!", rc);
make_bad_inode(inode);
iput(inode);
return NULL;
}
inode->i_uid = current->fsuid;
if (parent->i_mode & S_ISGID) {
inode->i_gid = parent->i_gid;
if (S_ISDIR(mode))
mode |= S_ISGID;
} else
inode->i_gid = current->fsgid;
/*
* Allocate inode to quota.
*/
if (DQUOT_ALLOC_INODE(inode)) {
DQUOT_DROP(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
iput(inode);
return NULL;
}
inode->i_mode = mode;
if (S_ISDIR(mode))
jfs_inode->mode2 = IDIRECTORY | mode;
else
jfs_inode->mode2 = INLINEEA | ISPARSE | mode;
inode->i_blksize = sb->s_blocksize;
inode->i_blocks = 0;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
jfs_inode->otime = inode->i_ctime.tv_sec;
inode->i_generation = JFS_SBI(sb)->gengen++;
jfs_inode->cflag = 0;
/* Zero remaining fields */
memset(&jfs_inode->acl, 0, sizeof(dxd_t));
memset(&jfs_inode->ea, 0, sizeof(dxd_t));
jfs_inode->next_index = 0;
jfs_inode->acltype = 0;
jfs_inode->btorder = 0;
jfs_inode->btindex = 0;
jfs_inode->bxflag = 0;
jfs_inode->blid = 0;
jfs_inode->atlhead = 0;
jfs_inode->atltail = 0;
jfs_inode->xtlid = 0;
jfs_info("ialloc returns inode = 0x%p\n", inode);
return inode;
}