forked from Minki/linux
quota: rename quota functions from upper case, make bigger ones non-inline
Cleanup quotaops.h: Rename functions from uppercase to lowercase (and define backward compatibility macros), move larger functions to dquot.c and make them non-inline. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Kara
Linus Torvalds
parent
b48d380541
commit
b85f4b87a5
53
fs/dquot.c
53
fs/dquot.c
@ -1153,6 +1153,28 @@ int dquot_drop(struct inode *inode)
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return 0;
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}
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/* Wrapper to remove references to quota structures from inode */
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void vfs_dq_drop(struct inode *inode)
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{
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/* Here we can get arbitrary inode from clear_inode() so we have
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* to be careful. OTOH we don't need locking as quota operations
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* are allowed to change only at mount time */
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if (!IS_NOQUOTA(inode) && inode->i_sb && inode->i_sb->dq_op
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&& inode->i_sb->dq_op->drop) {
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int cnt;
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/* Test before calling to rule out calls from proc and such
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* where we are not allowed to block. Note that this is
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* actually reliable test even without the lock - the caller
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* must assure that nobody can come after the DQUOT_DROP and
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* add quota pointers back anyway */
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for (cnt = 0; cnt < MAXQUOTAS; cnt++)
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if (inode->i_dquot[cnt] != NODQUOT)
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break;
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if (cnt < MAXQUOTAS)
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inode->i_sb->dq_op->drop(inode);
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}
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}
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/*
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* Following four functions update i_blocks+i_bytes fields and
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* quota information (together with appropriate checks)
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@ -1426,6 +1448,18 @@ warn_put_all:
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return ret;
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}
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/* Wrapper for transferring ownership of an inode */
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int vfs_dq_transfer(struct inode *inode, struct iattr *iattr)
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{
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if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode)) {
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vfs_dq_init(inode);
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if (inode->i_sb->dq_op->transfer(inode, iattr) == NO_QUOTA)
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return 1;
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}
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return 0;
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}
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/*
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* Write info of quota file to disk
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*/
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@ -1766,6 +1800,22 @@ out:
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return error;
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}
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/* Wrapper to turn on quotas when remounting rw */
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int vfs_dq_quota_on_remount(struct super_block *sb)
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{
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int cnt;
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int ret = 0, err;
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if (!sb->s_qcop || !sb->s_qcop->quota_on)
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return -ENOSYS;
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for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
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err = sb->s_qcop->quota_on(sb, cnt, 0, NULL, 1);
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if (err < 0 && !ret)
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ret = err;
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}
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return ret;
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}
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/* Generic routine for getting common part of quota structure */
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static void do_get_dqblk(struct dquot *dquot, struct if_dqblk *di)
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{
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@ -2101,8 +2151,11 @@ EXPORT_SYMBOL(dquot_release);
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EXPORT_SYMBOL(dquot_mark_dquot_dirty);
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EXPORT_SYMBOL(dquot_initialize);
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EXPORT_SYMBOL(dquot_drop);
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EXPORT_SYMBOL(vfs_dq_drop);
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EXPORT_SYMBOL(dquot_alloc_space);
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EXPORT_SYMBOL(dquot_alloc_inode);
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EXPORT_SYMBOL(dquot_free_space);
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EXPORT_SYMBOL(dquot_free_inode);
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EXPORT_SYMBOL(dquot_transfer);
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EXPORT_SYMBOL(vfs_dq_transfer);
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EXPORT_SYMBOL(vfs_dq_quota_on_remount);
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@ -19,34 +19,38 @@
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/*
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* declaration of quota_function calls in kernel.
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*/
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extern void sync_dquots(struct super_block *sb, int type);
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void sync_dquots(struct super_block *sb, int type);
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extern int dquot_initialize(struct inode *inode, int type);
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extern int dquot_drop(struct inode *inode);
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int dquot_initialize(struct inode *inode, int type);
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int dquot_drop(struct inode *inode);
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extern int dquot_alloc_space(struct inode *inode, qsize_t number, int prealloc);
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extern int dquot_alloc_inode(const struct inode *inode, unsigned long number);
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int dquot_alloc_space(struct inode *inode, qsize_t number, int prealloc);
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int dquot_alloc_inode(const struct inode *inode, unsigned long number);
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extern int dquot_free_space(struct inode *inode, qsize_t number);
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extern int dquot_free_inode(const struct inode *inode, unsigned long number);
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int dquot_free_space(struct inode *inode, qsize_t number);
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int dquot_free_inode(const struct inode *inode, unsigned long number);
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extern int dquot_transfer(struct inode *inode, struct iattr *iattr);
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extern int dquot_commit(struct dquot *dquot);
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extern int dquot_acquire(struct dquot *dquot);
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extern int dquot_release(struct dquot *dquot);
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extern int dquot_commit_info(struct super_block *sb, int type);
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extern int dquot_mark_dquot_dirty(struct dquot *dquot);
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int dquot_transfer(struct inode *inode, struct iattr *iattr);
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int dquot_commit(struct dquot *dquot);
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int dquot_acquire(struct dquot *dquot);
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int dquot_release(struct dquot *dquot);
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int dquot_commit_info(struct super_block *sb, int type);
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int dquot_mark_dquot_dirty(struct dquot *dquot);
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extern int vfs_quota_on(struct super_block *sb, int type, int format_id,
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char *path, int remount);
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extern int vfs_quota_on_mount(struct super_block *sb, char *qf_name,
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int format_id, int type);
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extern int vfs_quota_off(struct super_block *sb, int type, int remount);
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extern int vfs_quota_sync(struct super_block *sb, int type);
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extern int vfs_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
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extern int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
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extern int vfs_get_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di);
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extern int vfs_set_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di);
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int vfs_quota_on(struct super_block *sb, int type, int format_id,
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char *path, int remount);
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int vfs_quota_on_mount(struct super_block *sb, char *qf_name,
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int format_id, int type);
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int vfs_quota_off(struct super_block *sb, int type, int remount);
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int vfs_quota_sync(struct super_block *sb, int type);
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int vfs_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
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int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
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int vfs_get_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di);
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int vfs_set_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di);
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void vfs_dq_drop(struct inode *inode);
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int vfs_dq_transfer(struct inode *inode, struct iattr *iattr);
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int vfs_dq_quota_on_remount(struct super_block *sb);
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/*
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* Operations supported for diskquotas.
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@ -59,38 +63,16 @@ extern struct quotactl_ops vfs_quotactl_ops;
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/* It is better to call this function outside of any transaction as it might
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* need a lot of space in journal for dquot structure allocation. */
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static inline void DQUOT_INIT(struct inode *inode)
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static inline void vfs_dq_init(struct inode *inode)
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{
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BUG_ON(!inode->i_sb);
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if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode))
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inode->i_sb->dq_op->initialize(inode, -1);
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}
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/* The same as with DQUOT_INIT */
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static inline void DQUOT_DROP(struct inode *inode)
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{
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/* Here we can get arbitrary inode from clear_inode() so we have
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* to be careful. OTOH we don't need locking as quota operations
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* are allowed to change only at mount time */
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if (!IS_NOQUOTA(inode) && inode->i_sb && inode->i_sb->dq_op
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&& inode->i_sb->dq_op->drop) {
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int cnt;
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/* Test before calling to rule out calls from proc and such
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* where we are not allowed to block. Note that this is
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* actually reliable test even without the lock - the caller
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* must assure that nobody can come after the DQUOT_DROP and
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* add quota pointers back anyway */
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for (cnt = 0; cnt < MAXQUOTAS; cnt++)
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if (inode->i_dquot[cnt] != NODQUOT)
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break;
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if (cnt < MAXQUOTAS)
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inode->i_sb->dq_op->drop(inode);
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}
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}
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/* The following allocation/freeing/transfer functions *must* be called inside
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* a transaction (deadlocks possible otherwise) */
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static inline int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
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static inline int vfs_dq_prealloc_space_nodirty(struct inode *inode, qsize_t nr)
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{
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if (sb_any_quota_enabled(inode->i_sb)) {
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/* Used space is updated in alloc_space() */
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@ -102,15 +84,15 @@ static inline int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
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return 0;
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}
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static inline int DQUOT_PREALLOC_SPACE(struct inode *inode, qsize_t nr)
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static inline int vfs_dq_prealloc_space(struct inode *inode, qsize_t nr)
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{
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int ret;
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if (!(ret = DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr)))
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if (!(ret = vfs_dq_prealloc_space_nodirty(inode, nr)))
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mark_inode_dirty(inode);
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return ret;
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}
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static inline int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
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static inline int vfs_dq_alloc_space_nodirty(struct inode *inode, qsize_t nr)
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{
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if (sb_any_quota_enabled(inode->i_sb)) {
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/* Used space is updated in alloc_space() */
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@ -122,25 +104,25 @@ static inline int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
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return 0;
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}
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static inline int DQUOT_ALLOC_SPACE(struct inode *inode, qsize_t nr)
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static inline int vfs_dq_alloc_space(struct inode *inode, qsize_t nr)
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{
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int ret;
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if (!(ret = DQUOT_ALLOC_SPACE_NODIRTY(inode, nr)))
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if (!(ret = vfs_dq_alloc_space_nodirty(inode, nr)))
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mark_inode_dirty(inode);
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return ret;
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}
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static inline int DQUOT_ALLOC_INODE(struct inode *inode)
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static inline int vfs_dq_alloc_inode(struct inode *inode)
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{
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if (sb_any_quota_enabled(inode->i_sb)) {
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DQUOT_INIT(inode);
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vfs_dq_init(inode);
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if (inode->i_sb->dq_op->alloc_inode(inode, 1) == NO_QUOTA)
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return 1;
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}
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return 0;
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}
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static inline void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
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static inline void vfs_dq_free_space_nodirty(struct inode *inode, qsize_t nr)
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{
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if (sb_any_quota_enabled(inode->i_sb))
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inode->i_sb->dq_op->free_space(inode, nr);
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@ -148,35 +130,25 @@ static inline void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
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inode_sub_bytes(inode, nr);
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}
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static inline void DQUOT_FREE_SPACE(struct inode *inode, qsize_t nr)
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static inline void vfs_dq_free_space(struct inode *inode, qsize_t nr)
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{
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DQUOT_FREE_SPACE_NODIRTY(inode, nr);
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vfs_dq_free_space_nodirty(inode, nr);
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mark_inode_dirty(inode);
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}
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static inline void DQUOT_FREE_INODE(struct inode *inode)
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static inline void vfs_dq_free_inode(struct inode *inode)
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{
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if (sb_any_quota_enabled(inode->i_sb))
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inode->i_sb->dq_op->free_inode(inode, 1);
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}
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static inline int DQUOT_TRANSFER(struct inode *inode, struct iattr *iattr)
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{
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if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode)) {
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DQUOT_INIT(inode);
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if (inode->i_sb->dq_op->transfer(inode, iattr) == NO_QUOTA)
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return 1;
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}
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return 0;
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}
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/* The following two functions cannot be called inside a transaction */
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static inline void DQUOT_SYNC(struct super_block *sb)
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static inline void vfs_dq_sync(struct super_block *sb)
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{
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sync_dquots(sb, -1);
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}
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static inline int DQUOT_OFF(struct super_block *sb, int remount)
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static inline int vfs_dq_off(struct super_block *sb, int remount)
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{
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int ret = -ENOSYS;
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@ -185,21 +157,6 @@ static inline int DQUOT_OFF(struct super_block *sb, int remount)
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return ret;
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}
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static inline int DQUOT_ON_REMOUNT(struct super_block *sb)
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{
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int cnt;
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int ret = 0, err;
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if (!sb->s_qcop || !sb->s_qcop->quota_on)
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return -ENOSYS;
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for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
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err = sb->s_qcop->quota_on(sb, cnt, 0, NULL, 1);
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if (err < 0 && !ret)
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ret = err;
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}
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return ret;
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}
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#else
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/*
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@ -208,113 +165,144 @@ static inline int DQUOT_ON_REMOUNT(struct super_block *sb)
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#define sb_dquot_ops (NULL)
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#define sb_quotactl_ops (NULL)
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static inline void DQUOT_INIT(struct inode *inode)
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static inline void vfs_dq_init(struct inode *inode)
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{
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}
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static inline void DQUOT_DROP(struct inode *inode)
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static inline void vfs_dq_drop(struct inode *inode)
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{
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}
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static inline int DQUOT_ALLOC_INODE(struct inode *inode)
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static inline int vfs_dq_alloc_inode(struct inode *inode)
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{
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return 0;
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}
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static inline void DQUOT_FREE_INODE(struct inode *inode)
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static inline void vfs_dq_free_inode(struct inode *inode)
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{
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}
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static inline void DQUOT_SYNC(struct super_block *sb)
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static inline void vfs_dq_sync(struct super_block *sb)
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{
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}
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static inline int DQUOT_OFF(struct super_block *sb, int remount)
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static inline int vfs_dq_off(struct super_block *sb, int remount)
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{
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return 0;
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}
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static inline int DQUOT_ON_REMOUNT(struct super_block *sb)
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static inline int vfs_dq_quota_on_remount(struct super_block *sb)
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{
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return 0;
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}
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static inline int DQUOT_TRANSFER(struct inode *inode, struct iattr *iattr)
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static inline int vfs_dq_transfer(struct inode *inode, struct iattr *iattr)
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{
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return 0;
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}
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static inline int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
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static inline int vfs_dq_prealloc_space_nodirty(struct inode *inode, qsize_t nr)
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{
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inode_add_bytes(inode, nr);
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return 0;
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}
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static inline int DQUOT_PREALLOC_SPACE(struct inode *inode, qsize_t nr)
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static inline int vfs_dq_prealloc_space(struct inode *inode, qsize_t nr)
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{
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DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr);
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vfs_dq_prealloc_space_nodirty(inode, nr);
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mark_inode_dirty(inode);
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return 0;
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}
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static inline int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
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static inline int vfs_dq_alloc_space_nodirty(struct inode *inode, qsize_t nr)
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{
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inode_add_bytes(inode, nr);
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return 0;
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}
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static inline int DQUOT_ALLOC_SPACE(struct inode *inode, qsize_t nr)
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static inline int vfs_dq_alloc_space(struct inode *inode, qsize_t nr)
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{
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DQUOT_ALLOC_SPACE_NODIRTY(inode, nr);
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vfs_dq_alloc_space_nodirty(inode, nr);
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mark_inode_dirty(inode);
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return 0;
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}
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static inline void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t nr)
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static inline void vfs_dq_free_space_nodirty(struct inode *inode, qsize_t nr)
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{
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inode_sub_bytes(inode, nr);
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}
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static inline void DQUOT_FREE_SPACE(struct inode *inode, qsize_t nr)
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static inline void vfs_dq_free_space(struct inode *inode, qsize_t nr)
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{
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DQUOT_FREE_SPACE_NODIRTY(inode, nr);
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vfs_dq_free_space_nodirty(inode, nr);
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mark_inode_dirty(inode);
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}
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#endif /* CONFIG_QUOTA */
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static inline int DQUOT_PREALLOC_BLOCK_NODIRTY(struct inode *inode, qsize_t nr)
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static inline int vfs_dq_prealloc_block_nodirty(struct inode *inode, qsize_t nr)
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{
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return DQUOT_PREALLOC_SPACE_NODIRTY(inode,
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return vfs_dq_prealloc_space_nodirty(inode,
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nr << inode->i_sb->s_blocksize_bits);
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}
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static inline int DQUOT_PREALLOC_BLOCK(struct inode *inode, qsize_t nr)
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static inline int vfs_dq_prealloc_block(struct inode *inode, qsize_t nr)
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{
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return DQUOT_PREALLOC_SPACE(inode,
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return vfs_dq_prealloc_space(inode,
|
||||
nr << inode->i_sb->s_blocksize_bits);
|
||||
}
|
||||
|
||||
static inline int DQUOT_ALLOC_BLOCK_NODIRTY(struct inode *inode, qsize_t nr)
|
||||
static inline int vfs_dq_alloc_block_nodirty(struct inode *inode, qsize_t nr)
|
||||
{
|
||||
return DQUOT_ALLOC_SPACE_NODIRTY(inode,
|
||||
return vfs_dq_alloc_space_nodirty(inode,
|
||||
nr << inode->i_sb->s_blocksize_bits);
|
||||
}
|
||||
|
||||
static inline int DQUOT_ALLOC_BLOCK(struct inode *inode, qsize_t nr)
|
||||
static inline int vfs_dq_alloc_block(struct inode *inode, qsize_t nr)
|
||||
{
|
||||
return DQUOT_ALLOC_SPACE(inode,
|
||||
return vfs_dq_alloc_space(inode,
|
||||
nr << inode->i_sb->s_blocksize_bits);
|
||||
}
|
||||
|
||||
static inline void DQUOT_FREE_BLOCK_NODIRTY(struct inode *inode, qsize_t nr)
|
||||
static inline void vfs_dq_free_block_nodirty(struct inode *inode, qsize_t nr)
|
||||
{
|
||||
DQUOT_FREE_SPACE_NODIRTY(inode, nr << inode->i_sb->s_blocksize_bits);
|
||||
vfs_dq_free_space_nodirty(inode, nr << inode->i_sb->s_blocksize_bits);
|
||||
}
|
||||
|
||||
static inline void DQUOT_FREE_BLOCK(struct inode *inode, qsize_t nr)
|
||||
static inline void vfs_dq_free_block(struct inode *inode, qsize_t nr)
|
||||
{
|
||||
DQUOT_FREE_SPACE(inode, nr << inode->i_sb->s_blocksize_bits);
|
||||
vfs_dq_free_space(inode, nr << inode->i_sb->s_blocksize_bits);
|
||||
}
|
||||
|
||||
/*
|
||||
* Define uppercase equivalents for compatibility with old function names
|
||||
* Can go away when we think all users have been converted (15/04/2008)
|
||||
*/
|
||||
#define DQUOT_INIT(inode) vfs_dq_init(inode)
|
||||
#define DQUOT_DROP(inode) vfs_dq_drop(inode)
|
||||
#define DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr) \
|
||||
vfs_dq_prealloc_space_nodirty(inode, nr)
|
||||
#define DQUOT_PREALLOC_SPACE(inode, nr) vfs_dq_prealloc_space(inode, nr)
|
||||
#define DQUOT_ALLOC_SPACE_NODIRTY(inode, nr) \
|
||||
vfs_dq_alloc_space_nodirty(inode, nr)
|
||||
#define DQUOT_ALLOC_SPACE(inode, nr) vfs_dq_alloc_space(inode, nr)
|
||||
#define DQUOT_PREALLOC_BLOCK_NODIRTY(inode, nr) \
|
||||
vfs_dq_prealloc_block_nodirty(inode, nr)
|
||||
#define DQUOT_PREALLOC_BLOCK(inode, nr) vfs_dq_prealloc_block(inode, nr)
|
||||
#define DQUOT_ALLOC_BLOCK_NODIRTY(inode, nr) \
|
||||
vfs_dq_alloc_block_nodirty(inode, nr)
|
||||
#define DQUOT_ALLOC_BLOCK(inode, nr) vfs_dq_alloc_block(inode, nr)
|
||||
#define DQUOT_ALLOC_INODE(inode) vfs_dq_alloc_inode(inode)
|
||||
#define DQUOT_FREE_SPACE_NODIRTY(inode, nr) \
|
||||
vfs_dq_free_space_nodirty(inode, nr)
|
||||
#define DQUOT_FREE_SPACE(inode, nr) vfs_dq_free_space(inode, nr)
|
||||
#define DQUOT_FREE_BLOCK_NODIRTY(inode, nr) \
|
||||
vfs_dq_free_block_nodirty(inode, nr)
|
||||
#define DQUOT_FREE_BLOCK(inode, nr) vfs_dq_free_block(inode, nr)
|
||||
#define DQUOT_FREE_INODE(inode) vfs_dq_free_inode(inode)
|
||||
#define DQUOT_TRANSFER(inode, iattr) vfs_dq_transfer(inode, iattr)
|
||||
#define DQUOT_SYNC(sb) vfs_dq_sync(sb)
|
||||
#define DQUOT_OFF(sb, remount) vfs_dq_off(sb, remount)
|
||||
#define DQUOT_ON_REMOUNT(sb) vfs_dq_quota_on_remount(sb)
|
||||
|
||||
#endif /* _LINUX_QUOTAOPS_ */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user