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authorJan Kara <jack@suse.cz>2013-08-17 17:32:32 +0400
committerTheodore Ts'o <tytso@mit.edu>2013-08-17 17:32:32 +0400
commit1c8924eb106c1ac755d5d35ce9b3ff42e89e2511 (patch)
tree8e47b0d4121cffc818dfd28399fbfebd09e817a2 /include/linux/quotaops.h
parent19883bd9658d0dc269fc228b1b39db3615f7c7b0 (diff)
downloadlinux-1c8924eb106c1ac755d5d35ce9b3ff42e89e2511.tar.xz
quota: provide interface for readding allocated space into reserved space
ext4 needs to convert allocated (metadata) blocks back into blocks reserved for delayed allocation. Add functions into quota code for supporting such operation. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'include/linux/quotaops.h')
-rw-r--r--include/linux/quotaops.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index 1c50093ae656..6965fe394c3b 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -41,6 +41,7 @@ void __quota_error(struct super_block *sb, const char *func,
void inode_add_rsv_space(struct inode *inode, qsize_t number);
void inode_claim_rsv_space(struct inode *inode, qsize_t number);
void inode_sub_rsv_space(struct inode *inode, qsize_t number);
+void inode_reclaim_rsv_space(struct inode *inode, qsize_t number);
void dquot_initialize(struct inode *inode);
void dquot_drop(struct inode *inode);
@@ -59,6 +60,7 @@ int dquot_alloc_inode(const struct inode *inode);
int dquot_claim_space_nodirty(struct inode *inode, qsize_t number);
void dquot_free_inode(const struct inode *inode);
+void dquot_reclaim_space_nodirty(struct inode *inode, qsize_t number);
int dquot_disable(struct super_block *sb, int type, unsigned int flags);
/* Suspend quotas on remount RO */
@@ -238,6 +240,13 @@ static inline int dquot_claim_space_nodirty(struct inode *inode, qsize_t number)
return 0;
}
+static inline int dquot_reclaim_space_nodirty(struct inode *inode,
+ qsize_t number)
+{
+ inode_sub_bytes(inode, number);
+ return 0;
+}
+
static inline int dquot_disable(struct super_block *sb, int type,
unsigned int flags)
{
@@ -336,6 +345,12 @@ static inline int dquot_claim_block(struct inode *inode, qsize_t nr)
return ret;
}
+static inline void dquot_reclaim_block(struct inode *inode, qsize_t nr)
+{
+ dquot_reclaim_space_nodirty(inode, nr << inode->i_blkbits);
+ mark_inode_dirty_sync(inode);
+}
+
static inline void dquot_free_space_nodirty(struct inode *inode, qsize_t nr)
{
__dquot_free_space(inode, nr, 0);