ocfs2: Periodic quota syncing
This patch creates a work queue for periodic syncing of locally cached quota
information to the global quota files. We constantly queue a delayed work
item, to get the periodic behavior.
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Acked-by: Jan Kara <jack@suse.cz>
diff --git a/fs/ocfs2/quota.h b/fs/ocfs2/quota.h
index 1f1c863..e2233d5 100644
--- a/fs/ocfs2/quota.h
+++ b/fs/ocfs2/quota.h
@@ -39,6 +39,7 @@
unsigned int dqi_chunks; /* Number of chunks in local quota file */
unsigned int dqi_blocks; /* Number of blocks allocated for local quota file */
unsigned int dqi_syncms; /* How often should we sync with other nodes */
+ unsigned int dqi_syncjiff; /* Precomputed dqi_syncms in jiffies */
struct list_head dqi_chunk; /* List of chunks */
struct inode *dqi_gqinode; /* Global quota file inode */
struct ocfs2_lock_res dqi_gqlock; /* Lock protecting quota information structure */
@@ -47,6 +48,7 @@
struct buffer_head *dqi_lqi_bh; /* Buffer head with local quota file inode */
struct buffer_head *dqi_ibh; /* Buffer with information header */
struct qtree_mem_dqinfo dqi_gi; /* Info about global file */
+ struct delayed_work dqi_sync_work; /* Work for syncing dquots */
};
static inline struct ocfs2_dquot *OCFS2_DQUOT(struct dquot *dquot)
@@ -90,4 +92,7 @@
extern struct dquot_operations ocfs2_quota_operations;
extern struct quota_format_type ocfs2_quota_format;
+int ocfs2_quota_setup(void);
+void ocfs2_quota_shutdown(void);
+
#endif /* _OCFS2_QUOTA_H */