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-rw-r--r--fs/ceph/super.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 1c2086e0fec2..a7077a0c989f 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -39,6 +39,7 @@
#define CEPH_MOUNT_OPT_FSCACHE (1<<10) /* use fscache */
#define CEPH_MOUNT_OPT_NOPOOLPERM (1<<11) /* no pool permission check */
#define CEPH_MOUNT_OPT_MOUNTWAIT (1<<12) /* mount waits if no mds is up */
+#define CEPH_MOUNT_OPT_NOQUOTADF (1<<13) /* no root dir quota in statfs */
#define CEPH_MOUNT_OPT_DEFAULT CEPH_MOUNT_OPT_DCACHE
@@ -310,6 +311,9 @@ struct ceph_inode_info {
u64 i_rbytes, i_rfiles, i_rsubdirs;
u64 i_files, i_subdirs;
+ /* quotas */
+ u64 i_max_bytes, i_max_files;
+
struct rb_root i_fragtree;
int i_fragtree_nsplits;
struct mutex i_fragtree_mutex;
@@ -671,6 +675,10 @@ struct ceph_file_info {
spinlock_t rw_contexts_lock;
struct list_head rw_contexts;
+};
+
+struct ceph_dir_file_info {
+ struct ceph_file_info file_info;
/* readdir: position within the dir */
u32 frag;
@@ -748,6 +756,7 @@ struct ceph_readdir_cache_control {
*/
struct ceph_snap_realm {
u64 ino;
+ struct inode *inode;
atomic_t nref;
struct rb_node node;
@@ -1066,4 +1075,37 @@ extern int ceph_locks_to_pagelist(struct ceph_filelock *flocks,
extern int ceph_fs_debugfs_init(struct ceph_fs_client *client);
extern void ceph_fs_debugfs_cleanup(struct ceph_fs_client *client);
+/* quota.c */
+static inline bool __ceph_has_any_quota(struct ceph_inode_info *ci)
+{
+ return ci->i_max_files || ci->i_max_bytes;
+}
+
+extern void ceph_adjust_quota_realms_count(struct inode *inode, bool inc);
+
+static inline void __ceph_update_quota(struct ceph_inode_info *ci,
+ u64 max_bytes, u64 max_files)
+{
+ bool had_quota, has_quota;
+ had_quota = __ceph_has_any_quota(ci);
+ ci->i_max_bytes = max_bytes;
+ ci->i_max_files = max_files;
+ has_quota = __ceph_has_any_quota(ci);
+
+ if (had_quota != has_quota)
+ ceph_adjust_quota_realms_count(&ci->vfs_inode, has_quota);
+}
+
+extern void ceph_handle_quota(struct ceph_mds_client *mdsc,
+ struct ceph_mds_session *session,
+ struct ceph_msg *msg);
+extern bool ceph_quota_is_max_files_exceeded(struct inode *inode);
+extern bool ceph_quota_is_same_realm(struct inode *old, struct inode *new);
+extern bool ceph_quota_is_max_bytes_exceeded(struct inode *inode,
+ loff_t newlen);
+extern bool ceph_quota_is_max_bytes_approaching(struct inode *inode,
+ loff_t newlen);
+extern bool ceph_quota_update_statfs(struct ceph_fs_client *fsc,
+ struct kstatfs *buf);
+
#endif /* _FS_CEPH_SUPER_H */