prototypes:
int (*initialize) (struct inode *, int);
int (*drop) (struct inode *);
- int (*alloc_inode) (const struct inode *, unsigned long);
- int (*free_inode) (const struct inode *, unsigned long);
int (*transfer) (struct inode *, struct iattr *);
int (*write_dquot) (struct dquot *);
int (*acquire_dquot) (struct dquot *);
FS recursion Held locks when called
initialize: yes maybe dqonoff_sem
drop: yes -
-alloc_inode: ->mark_dirty() -
-free_inode: ->mark_dirty() -
transfer: yes -
write_dquot: yes dqonoff_sem or dqptr_sem
acquire_dquot: yes dqonoff_sem or dqptr_sem
FS recursion means calling ->quota_read() and ->quota_write() from superblock
operations.
-->alloc_inode(), ->free_inode() are called
-only directly by the filesystem and do not call any fs functions only
-the ->mark_dirty() operation.
-
More details about quota locking can be found in fs/dquot.c.
--------------------------- vm_operations_struct -----------------------------
if (!is_bad_inode(inode)) {
/* Quota is already initialized in iput() */
ext2_xattr_delete_inode(inode);
- vfs_dq_free_inode(inode);
+ dquot_free_inode(inode);
vfs_dq_drop(inode);
}
goto fail_drop;
}
- if (vfs_dq_alloc_inode(inode)) {
- err = -EDQUOT;
+ vfs_dq_init(inode);
+ err = dquot_alloc_inode(inode);
+ if (err)
goto fail_drop;
- }
err = ext2_init_acl(inode, dir);
if (err)
return inode;
fail_free_drop:
- vfs_dq_free_inode(inode);
+ dquot_free_inode(inode);
fail_drop:
vfs_dq_drop(inode);
*/
vfs_dq_init(inode);
ext3_xattr_delete_inode(handle, inode);
- vfs_dq_free_inode(inode);
+ dquot_free_inode(inode);
vfs_dq_drop(inode);
is_directory = S_ISDIR(inode->i_mode);
sizeof(struct ext3_inode) - EXT3_GOOD_OLD_INODE_SIZE : 0;
ret = inode;
- if (vfs_dq_alloc_inode(inode)) {
- err = -EDQUOT;
+ vfs_dq_init(inode);
+ err = dquot_alloc_inode(inode);
+ if (err)
goto fail_drop;
- }
err = ext3_init_acl(handle, inode, dir);
if (err)
return ret;
fail_free_drop:
- vfs_dq_free_inode(inode);
+ dquot_free_inode(inode);
fail_drop:
vfs_dq_drop(inode);
static const struct dquot_operations ext3_quota_operations = {
.initialize = dquot_initialize,
.drop = dquot_drop,
- .alloc_inode = dquot_alloc_inode,
- .free_inode = dquot_free_inode,
.transfer = dquot_transfer,
.write_dquot = ext3_write_dquot,
.acquire_dquot = ext3_acquire_dquot,
*/
vfs_dq_init(inode);
ext4_xattr_delete_inode(handle, inode);
- vfs_dq_free_inode(inode);
+ dquot_free_inode(inode);
vfs_dq_drop(inode);
is_directory = S_ISDIR(inode->i_mode);
ei->i_extra_isize = EXT4_SB(sb)->s_want_extra_isize;
ret = inode;
- if (vfs_dq_alloc_inode(inode)) {
- err = -EDQUOT;
+ vfs_dq_init(inode);
+ err = dquot_alloc_inode(inode);
+ if (err)
goto fail_drop;
- }
err = ext4_init_acl(handle, inode, dir);
if (err)
return ret;
fail_free_drop:
- vfs_dq_free_inode(inode);
+ dquot_free_inode(inode);
fail_drop:
vfs_dq_drop(inode);
#ifdef CONFIG_QUOTA
.get_reserved_space = ext4_get_reserved_space,
#endif
- .alloc_inode = dquot_alloc_inode,
- .free_inode = dquot_free_inode,
.transfer = dquot_transfer,
.write_dquot = ext4_write_dquot,
.acquire_dquot = ext4_acquire_dquot,
* Free the inode from the quota allocation.
*/
vfs_dq_init(inode);
- vfs_dq_free_inode(inode);
+ dquot_free_inode(inode);
vfs_dq_drop(inode);
}
/*
* Allocate inode to quota.
*/
- if (vfs_dq_alloc_inode(inode)) {
- rc = -EDQUOT;
+ vfs_dq_init(inode);
+ rc = dquot_alloc_inode(inode);
+ if (rc)
goto fail_drop;
- }
inode->i_mode = mode;
/* inherit flags from parent */
}
ocfs2_remove_from_cache(INODE_CACHE(inode), di_bh);
- vfs_dq_free_inode(inode);
+ dquot_free_inode(inode);
status = ocfs2_free_dinode(handle, inode_alloc_inode,
inode_alloc_bh, di);
goto leave;
}
- /* We don't use standard VFS wrapper because we don't want vfs_dq_init
- * to be called. */
- if (sb_any_quota_active(osb->sb) &&
- osb->sb->dq_op->alloc_inode(inode, 1) == NO_QUOTA) {
- status = -EDQUOT;
+ status = dquot_alloc_inode(inode);
+ if (status)
goto leave;
- }
did_quota_inode = 1;
mlog_entry("(0x%p, 0x%p, %d, %lu, '%.*s')\n", dir, dentry,
status = 0;
leave:
if (status < 0 && did_quota_inode)
- vfs_dq_free_inode(inode);
+ dquot_free_inode(inode);
if (handle)
ocfs2_commit_trans(osb, handle);
goto bail;
}
- /* We don't use standard VFS wrapper because we don't want vfs_dq_init
- * to be called. */
- if (sb_any_quota_active(osb->sb) &&
- osb->sb->dq_op->alloc_inode(inode, 1) == NO_QUOTA) {
- status = -EDQUOT;
+ status = dquot_alloc_inode(inode);
+ if (status)
goto bail;
- }
did_quota_inode = 1;
mlog_entry("(0x%p, 0x%p, %d, '%.*s')\n", dir, dentry,
dquot_free_space_nodirty(inode,
ocfs2_clusters_to_bytes(osb->sb, 1));
if (status < 0 && did_quota_inode)
- vfs_dq_free_inode(inode);
+ dquot_free_inode(inode);
if (handle)
ocfs2_commit_trans(osb, handle);
goto leave;
}
- /* We don't use standard VFS wrapper because we don't want vfs_dq_init
- * to be called. */
- if (sb_any_quota_active(osb->sb) &&
- osb->sb->dq_op->alloc_inode(inode, 1) == NO_QUOTA) {
- status = -EDQUOT;
+ status = dquot_alloc_inode(inode);
+ if (status)
goto leave;
- }
did_quota_inode = 1;
inode->i_nlink = 0;
insert_inode_hash(inode);
leave:
if (status < 0 && did_quota_inode)
- vfs_dq_free_inode(inode);
+ dquot_free_inode(inode);
if (handle)
ocfs2_commit_trans(osb, handle);
const struct dquot_operations ocfs2_quota_operations = {
.initialize = dquot_initialize,
.drop = dquot_drop,
- .alloc_inode = dquot_alloc_inode,
- .free_inode = dquot_free_inode,
.transfer = dquot_transfer,
.write_dquot = ocfs2_write_dquot,
.acquire_dquot = ocfs2_acquire_dquot,
/*
* This operation can block, but only after everything is updated
*/
-int dquot_alloc_inode(const struct inode *inode, qsize_t number)
+int dquot_alloc_inode(const struct inode *inode)
{
- int cnt, ret = NO_QUOTA;
+ int cnt, ret = -EDQUOT;
char warntype[MAXQUOTAS];
/* First test before acquiring mutex - solves deadlocks when we
* re-enter the quota code and are already holding the mutex */
- if (IS_NOQUOTA(inode))
- return QUOTA_OK;
+ if (!sb_any_quota_active(inode->i_sb) || IS_NOQUOTA(inode))
+ return 0;
for (cnt = 0; cnt < MAXQUOTAS; cnt++)
warntype[cnt] = QUOTA_NL_NOWARN;
down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
if (!inode->i_dquot[cnt])
continue;
- if (check_idq(inode->i_dquot[cnt], number, warntype+cnt)
+ if (check_idq(inode->i_dquot[cnt], 1, warntype+cnt)
== NO_QUOTA)
goto warn_put_all;
}
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
if (!inode->i_dquot[cnt])
continue;
- dquot_incr_inodes(inode->i_dquot[cnt], number);
+ dquot_incr_inodes(inode->i_dquot[cnt], 1);
}
- ret = QUOTA_OK;
+ ret = 0;
warn_put_all:
spin_unlock(&dq_data_lock);
- if (ret == QUOTA_OK)
+ if (ret == 0)
mark_all_dquot_dirty(inode->i_dquot);
flush_warnings(inode->i_dquot, warntype);
up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
/*
* This operation can block, but only after everything is updated
*/
-int dquot_free_inode(const struct inode *inode, qsize_t number)
+void dquot_free_inode(const struct inode *inode)
{
unsigned int cnt;
char warntype[MAXQUOTAS];
/* First test before acquiring mutex - solves deadlocks when we
* re-enter the quota code and are already holding the mutex */
- if (IS_NOQUOTA(inode))
- return QUOTA_OK;
+ if (!sb_any_quota_active(inode->i_sb) || IS_NOQUOTA(inode))
+ return;
down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
spin_lock(&dq_data_lock);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
if (!inode->i_dquot[cnt])
continue;
- warntype[cnt] = info_idq_free(inode->i_dquot[cnt], number);
- dquot_decr_inodes(inode->i_dquot[cnt], number);
+ warntype[cnt] = info_idq_free(inode->i_dquot[cnt], 1);
+ dquot_decr_inodes(inode->i_dquot[cnt], 1);
}
spin_unlock(&dq_data_lock);
mark_all_dquot_dirty(inode->i_dquot);
flush_warnings(inode->i_dquot, warntype);
up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
- return QUOTA_OK;
}
EXPORT_SYMBOL(dquot_free_inode);
const struct dquot_operations dquot_operations = {
.initialize = dquot_initialize,
.drop = dquot_drop,
- .alloc_inode = dquot_alloc_inode,
- .free_inode = dquot_free_inode,
.transfer = dquot_transfer,
.write_dquot = dquot_commit,
.acquire_dquot = dquot_acquire,
* after delete_object so that quota updates go into the same transaction as
* stat data deletion */
if (!err)
- vfs_dq_free_inode(inode);
+ dquot_free_inode(inode);
if (journal_end(&th, inode->i_sb, jbegin_count))
goto out;
BUG_ON(!th->t_trans_id);
- if (vfs_dq_alloc_inode(inode)) {
- err = -EDQUOT;
+ vfs_dq_init(inode);
+ err = dquot_alloc_inode(inode);
+ if (err)
goto out_end_trans;
- }
if (!dir->i_nlink) {
err = -EPERM;
goto out_bad_inode;
INODE_PKEY(inode)->k_objectid = 0;
/* Quota change must be inside a transaction for journaling */
- vfs_dq_free_inode(inode);
+ dquot_free_inode(inode);
out_end_trans:
journal_end(th, th->t_super, th->t_blocks_allocated);
static const struct dquot_operations reiserfs_quota_operations = {
.initialize = dquot_initialize,
.drop = dquot_drop,
- .alloc_inode = dquot_alloc_inode,
- .free_inode = dquot_free_inode,
.transfer = dquot_transfer,
.write_dquot = reiserfs_write_dquot,
.acquire_dquot = reiserfs_acquire_dquot,
* Note: we must free any quota before locking the superblock,
* as writing the quota to disk may need the lock as well.
*/
- vfs_dq_free_inode(inode);
+ dquot_free_inode(inode);
vfs_dq_drop(inode);
clear_inode(inode);
struct super_block *sb = dir->i_sb;
struct udf_sb_info *sbi = UDF_SB(sb);
struct inode *inode;
- int block;
+ int block, ret;
uint32_t start = UDF_I(dir)->i_location.logicalBlockNum;
struct udf_inode_info *iinfo;
struct udf_inode_info *dinfo = UDF_I(dir);
insert_inode_hash(inode);
mark_inode_dirty(inode);
- if (vfs_dq_alloc_inode(inode)) {
+ vfs_dq_init(inode);
+ ret = dquot_alloc_inode(inode);
+ if (ret) {
vfs_dq_drop(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
iput(inode);
- *err = -EDQUOT;
+ *err = ret;
return NULL;
}
is_directory = S_ISDIR(inode->i_mode);
- vfs_dq_free_inode(inode);
+ dquot_free_inode(inode);
vfs_dq_drop(inode);
clear_inode (inode);
unlock_super (sb);
- if (vfs_dq_alloc_inode(inode)) {
+ vfs_dq_init(inode);
+ err = dquot_alloc_inode(inode);
+ if (err) {
vfs_dq_drop(inode);
- err = -EDQUOT;
goto fail_without_unlock;
}
struct dquot_operations {
int (*initialize) (struct inode *, int);
int (*drop) (struct inode *);
- int (*alloc_inode) (const struct inode *, qsize_t);
- int (*free_inode) (const struct inode *, qsize_t);
int (*transfer) (struct inode *, qid_t *, unsigned long);
int (*write_dquot) (struct dquot *); /* Ordinary dquot write */
struct dquot *(*alloc_dquot)(struct super_block *, int); /* Allocate memory for new dquot */
int warn, int reserve);
void __dquot_free_space(struct inode *inode, qsize_t number, int reserve);
-int dquot_alloc_inode(const struct inode *inode, qsize_t number);
+int dquot_alloc_inode(const struct inode *inode);
int dquot_claim_space_nodirty(struct inode *inode, qsize_t number);
-int dquot_free_inode(const struct inode *inode, qsize_t number);
+void dquot_free_inode(const struct inode *inode);
int dquot_transfer(struct inode *inode, qid_t *chid, unsigned long mask);
int dquot_commit(struct dquot *dquot);
inode->i_sb->dq_op->initialize(inode, -1);
}
-static inline int vfs_dq_alloc_inode(struct inode *inode)
-{
- if (sb_any_quota_active(inode->i_sb)) {
- vfs_dq_init(inode);
- if (inode->i_sb->dq_op->alloc_inode(inode, 1) == NO_QUOTA)
- return 1;
- }
- return 0;
-}
-
-static inline void vfs_dq_free_inode(struct inode *inode)
-{
- if (sb_any_quota_active(inode->i_sb))
- inode->i_sb->dq_op->free_inode(inode, 1);
-}
-
/* Cannot be called inside a transaction */
static inline int vfs_dq_off(struct super_block *sb, int remount)
{
{
}
-static inline int vfs_dq_alloc_inode(struct inode *inode)
+static inline int dquot_alloc_inode(const struct inode *inode)
{
return 0;
}
-static inline void vfs_dq_free_inode(struct inode *inode)
+static inline void dquot_free_inode(const struct inode *inode)
{
}