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Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-quota-2.6

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* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-quota-2.6: (27 commits)
  ext2: Zero our b_size in ext2_quota_read()
  trivial: fix typos/grammar errors in fs/Kconfig
  quota: Coding style fixes
  quota: Remove superfluous inlines
  quota: Remove uppercase aliases for quota functions.
  nfsd: Use lowercase names of quota functions
  jfs: Use lowercase names of quota functions
  udf: Use lowercase names of quota functions
  ufs: Use lowercase names of quota functions
  reiserfs: Use lowercase names of quota functions
  ext4: Use lowercase names of quota functions
  ext3: Use lowercase names of quota functions
  ext2: Use lowercase names of quota functions
  ramfs: Remove quota call
  vfs: Use lowercase names of quota functions
  quota: Remove dqbuf_t and other cleanups
  quota: Remove NODQUOT macro
  quota: Make global quota locks cacheline aligned
  quota: Move quota files into separate directory
  ext4: quota reservation for delayed allocation
  ...
This commit is contained in:
Linus Torvalds
2009-03-27 14:48:34 -07:00
parent 805de022b1 c16831b4cc
commit 2c9e15a011
58 changed files with 903 additions and 698 deletions
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11
include/linux/quota.h
View File

@@ -198,6 +198,7 @@ struct mem_dqblk {
qsize_t dqb_bhardlimit; /* absolute limit on disk blks alloc */
qsize_t dqb_bsoftlimit; /* preferred limit on disk blks */
qsize_t dqb_curspace; /* current used space */
qsize_t dqb_rsvspace; /* current reserved space for delalloc*/
qsize_t dqb_ihardlimit; /* absolute limit on allocated inodes */
qsize_t dqb_isoftlimit; /* preferred inode limit */
qsize_t dqb_curinodes; /* current # allocated inodes */
@@ -276,8 +277,6 @@ struct dquot {
struct mem_dqblk dq_dqb; /* Diskquota usage */
};
#define NODQUOT (struct dquot *)NULL
#define QUOTA_OK 0
#define NO_QUOTA 1
@@ -308,6 +307,14 @@ struct dquot_operations {
int (*release_dquot) (struct dquot *); /* Quota is going to be deleted from disk */
int (*mark_dirty) (struct dquot *); /* Dquot is marked dirty */
int (*write_info) (struct super_block *, int); /* Write of quota "superblock" */
/* reserve quota for delayed block allocation */
int (*reserve_space) (struct inode *, qsize_t, int);
/* claim reserved quota for delayed alloc */
int (*claim_space) (struct inode *, qsize_t);
/* release rsved quota for delayed alloc */
void (*release_rsv) (struct inode *, qsize_t);
/* get reserved quota for delayed alloc */
qsize_t (*get_reserved_space) (struct inode *);
};
/* Operations handling requests from userspace */

119
include/linux/quotaops.h
View File

@@ -35,6 +35,11 @@ void dquot_destroy(struct dquot *dquot);
int dquot_alloc_space(struct inode *inode, qsize_t number, int prealloc);
int dquot_alloc_inode(const struct inode *inode, qsize_t number);
int dquot_reserve_space(struct inode *inode, qsize_t number, int prealloc);
int dquot_claim_space(struct inode *inode, qsize_t number);
void dquot_release_reserved_space(struct inode *inode, qsize_t number);
qsize_t dquot_get_reserved_space(struct inode *inode);
int dquot_free_space(struct inode *inode, qsize_t number);
int dquot_free_inode(const struct inode *inode, qsize_t number);
@@ -183,6 +188,16 @@ static inline int vfs_dq_alloc_space(struct inode *inode, qsize_t nr)
return ret;
}
static inline int vfs_dq_reserve_space(struct inode *inode, qsize_t nr)
{
if (sb_any_quota_active(inode->i_sb)) {
/* Used space is updated in alloc_space() */
if (inode->i_sb->dq_op->reserve_space(inode, nr, 0) == NO_QUOTA)
return 1;
}
return 0;
}
static inline int vfs_dq_alloc_inode(struct inode *inode)
{
if (sb_any_quota_active(inode->i_sb)) {
@@ -193,6 +208,31 @@ static inline int vfs_dq_alloc_inode(struct inode *inode)
return 0;
}
/*
* Convert in-memory reserved quotas to real consumed quotas
*/
static inline int vfs_dq_claim_space(struct inode *inode, qsize_t nr)
{
if (sb_any_quota_active(inode->i_sb)) {
if (inode->i_sb->dq_op->claim_space(inode, nr) == NO_QUOTA)
return 1;
} else
inode_add_bytes(inode, nr);
mark_inode_dirty(inode);
return 0;
}
/*
* Release reserved (in-memory) quotas
*/
static inline
void vfs_dq_release_reservation_space(struct inode *inode, qsize_t nr)
{
if (sb_any_quota_active(inode->i_sb))
inode->i_sb->dq_op->release_rsv(inode, nr);
}
static inline void vfs_dq_free_space_nodirty(struct inode *inode, qsize_t nr)
{
if (sb_any_quota_active(inode->i_sb))
@@ -339,6 +379,22 @@ static inline int vfs_dq_alloc_space(struct inode *inode, qsize_t nr)
return 0;
}
static inline int vfs_dq_reserve_space(struct inode *inode, qsize_t nr)
{
return 0;
}
static inline int vfs_dq_claim_space(struct inode *inode, qsize_t nr)
{
return vfs_dq_alloc_space(inode, nr);
}
static inline
int vfs_dq_release_reservation_space(struct inode *inode, qsize_t nr)
{
return 0;
}
static inline void vfs_dq_free_space_nodirty(struct inode *inode, qsize_t nr)
{
inode_sub_bytes(inode, nr);
@@ -354,67 +410,48 @@ static inline void vfs_dq_free_space(struct inode *inode, qsize_t nr)
static inline int vfs_dq_prealloc_block_nodirty(struct inode *inode, qsize_t nr)
{
return vfs_dq_prealloc_space_nodirty(inode,
nr << inode->i_sb->s_blocksize_bits);
return vfs_dq_prealloc_space_nodirty(inode, nr << inode->i_blkbits);
}
static inline int vfs_dq_prealloc_block(struct inode *inode, qsize_t nr)
{
return vfs_dq_prealloc_space(inode,
nr << inode->i_sb->s_blocksize_bits);
return vfs_dq_prealloc_space(inode, nr << inode->i_blkbits);
}
static inline int vfs_dq_alloc_block_nodirty(struct inode *inode, qsize_t nr)
{
return vfs_dq_alloc_space_nodirty(inode,
nr << inode->i_sb->s_blocksize_bits);
return vfs_dq_alloc_space_nodirty(inode, nr << inode->i_blkbits);
}
static inline int vfs_dq_alloc_block(struct inode *inode, qsize_t nr)
{
return vfs_dq_alloc_space(inode,
nr << inode->i_sb->s_blocksize_bits);
return vfs_dq_alloc_space(inode, nr << inode->i_blkbits);
}
static inline int vfs_dq_reserve_block(struct inode *inode, qsize_t nr)
{
return vfs_dq_reserve_space(inode, nr << inode->i_blkbits);
}
static inline int vfs_dq_claim_block(struct inode *inode, qsize_t nr)
{
return vfs_dq_claim_space(inode, nr << inode->i_blkbits);
}
static inline
void vfs_dq_release_reservation_block(struct inode *inode, qsize_t nr)
{
vfs_dq_release_reservation_space(inode, nr << inode->i_blkbits);
}
static inline void vfs_dq_free_block_nodirty(struct inode *inode, qsize_t nr)
{
vfs_dq_free_space_nodirty(inode, nr << inode->i_sb->s_blocksize_bits);
vfs_dq_free_space_nodirty(inode, nr << inode->i_blkbits);
}
static inline void vfs_dq_free_block(struct inode *inode, qsize_t nr)
{
vfs_dq_free_space(inode, nr << inode->i_sb->s_blocksize_bits);
vfs_dq_free_space(inode, nr << inode->i_blkbits);
}
/*
* 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_ */