mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-11 12:28:41 +08:00
quota: unify quota init condition in setattr
Quota must being initialized if size or uid/git changes requested. But initialization performed in two different places: in case of i_size file system is responsible for dquot init , but in case of uid/gid init will be called internally in dquot_transfer(). This ambiguity makes code harder to understand. Let's move this logic to one common helper function. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
parent
fcbc59f96e
commit
12755627bd
@ -1466,7 +1466,7 @@ int ext2_setattr(struct dentry *dentry, struct iattr *iattr)
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
if (iattr->ia_valid & ATTR_SIZE)
|
||||
if (is_quota_modification(inode, iattr))
|
||||
dquot_initialize(inode);
|
||||
if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
|
||||
(iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
|
||||
|
@ -3151,7 +3151,7 @@ int ext3_setattr(struct dentry *dentry, struct iattr *attr)
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
if (ia_valid & ATTR_SIZE)
|
||||
if (is_quota_modification(inode, attr))
|
||||
dquot_initialize(inode);
|
||||
if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
|
||||
(ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
|
||||
|
@ -5425,7 +5425,7 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
if (ia_valid & ATTR_SIZE)
|
||||
if (is_quota_modification(inode, attr))
|
||||
dquot_initialize(inode);
|
||||
if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
|
||||
(ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
|
||||
|
@ -98,7 +98,7 @@ int jfs_setattr(struct dentry *dentry, struct iattr *iattr)
|
||||
if (rc)
|
||||
return rc;
|
||||
|
||||
if (iattr->ia_valid & ATTR_SIZE)
|
||||
if (is_quota_modification(inode, iattr))
|
||||
dquot_initialize(inode);
|
||||
if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
|
||||
(iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
|
||||
|
@ -966,10 +966,10 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
|
||||
if (status)
|
||||
return status;
|
||||
|
||||
if (is_quota_modification(inode, attr))
|
||||
dquot_initialize(inode);
|
||||
size_change = S_ISREG(inode->i_mode) && attr->ia_valid & ATTR_SIZE;
|
||||
if (size_change) {
|
||||
dquot_initialize(inode);
|
||||
|
||||
status = ocfs2_rw_lock(inode, 1);
|
||||
if (status < 0) {
|
||||
mlog_errno(status);
|
||||
|
@ -1822,10 +1822,9 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr)
|
||||
mask |= 1 << GRPQUOTA;
|
||||
chid[GRPQUOTA] = iattr->ia_gid;
|
||||
}
|
||||
if (sb_any_quota_active(inode->i_sb) && !IS_NOQUOTA(inode)) {
|
||||
dquot_initialize(inode);
|
||||
if (sb_any_quota_active(inode->i_sb) && !IS_NOQUOTA(inode))
|
||||
return __dquot_transfer(inode, chid, mask);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL(dquot_transfer);
|
||||
|
@ -3076,9 +3076,10 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr)
|
||||
ia_valid = attr->ia_valid &= ~(ATTR_KILL_SUID|ATTR_KILL_SGID);
|
||||
|
||||
depth = reiserfs_write_lock_once(inode->i_sb);
|
||||
if (attr->ia_valid & ATTR_SIZE) {
|
||||
if (is_quota_modification(inode, attr))
|
||||
dquot_initialize(inode);
|
||||
|
||||
if (attr->ia_valid & ATTR_SIZE) {
|
||||
/* version 2 items will be caught by the s_maxbytes check
|
||||
** done for us in vmtruncate
|
||||
*/
|
||||
|
@ -227,7 +227,7 @@ int udf_setattr(struct dentry *dentry, struct iattr *iattr)
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
if (iattr->ia_valid & ATTR_SIZE)
|
||||
if (is_quota_modification(inode, iattr))
|
||||
dquot_initialize(inode);
|
||||
|
||||
if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
|
||||
|
@ -518,18 +518,18 @@ int ufs_setattr(struct dentry *dentry, struct iattr *attr)
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
if (is_quota_modification(inode, attr))
|
||||
dquot_initialize(inode);
|
||||
|
||||
if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
|
||||
(ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
|
||||
error = dquot_transfer(inode, attr);
|
||||
if (error)
|
||||
return error;
|
||||
}
|
||||
if (ia_valid & ATTR_SIZE &&
|
||||
attr->ia_size != i_size_read(inode)) {
|
||||
if (ia_valid & ATTR_SIZE && attr->ia_size != inode->i_size) {
|
||||
loff_t old_i_size = inode->i_size;
|
||||
|
||||
dquot_initialize(inode);
|
||||
|
||||
error = vmtruncate(inode, attr->ia_size);
|
||||
if (error)
|
||||
return error;
|
||||
|
@ -14,6 +14,14 @@ static inline struct quota_info *sb_dqopt(struct super_block *sb)
|
||||
return &sb->s_dquot;
|
||||
}
|
||||
|
||||
/* i_mutex must being held */
|
||||
static inline bool is_quota_modification(struct inode *inode, struct iattr *ia)
|
||||
{
|
||||
return (ia->ia_valid & ATTR_SIZE && ia->ia_size != inode->i_size) ||
|
||||
(ia->ia_valid & ATTR_UID && ia->ia_uid != inode->i_uid) ||
|
||||
(ia->ia_valid & ATTR_GID && ia->ia_gid != inode->i_gid);
|
||||
}
|
||||
|
||||
#if defined(CONFIG_QUOTA)
|
||||
|
||||
/*
|
||||
|
Loading…
Reference in New Issue
Block a user