Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[linux.git] / fs / ceph / mds_client.h

diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index 50385a481fdbb9b2764257ddec68cc5acb4a9ff3..a83f28bc23870ee1c65c7ac50d265c52e8f2a08a 100644 (file)
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -325,6 +325,18 @@ struct ceph_snapid_map {
        unsigned long last_used;
 };
 
+/*
+ * node for list of quotarealm inodes that are not visible from the filesystem
+ * mountpoint, but required to handle, e.g. quotas.
+ */
+struct ceph_quotarealm_inode {
+       struct rb_node node;
+       u64 ino;
+       unsigned long timeout; /* last time a lookup failed for this inode */
+       struct mutex mutex;
+       struct inode *inode;
+};
+
 /*
  * mds client state
  */
@@ -344,6 +356,12 @@ struct ceph_mds_client {
        int                     stopping;      /* true if shutting down */
 
        atomic64_t              quotarealms_count; /* # realms with quota */
+       /*
+        * We keep a list of inodes we don't see in the mountpoint but that we
+        * need to track quota realms.
+        */
+       struct rb_root          quotarealms_inodes;
+       struct mutex            quotarealms_inodes_mutex;
 
        /*
         * snap_rwsem will cover cap linkage into snaprealms, and
@@ -447,8 +465,9 @@ extern int ceph_alloc_readdir_reply_buffer(struct ceph_mds_request *req,
                                           struct inode *dir);
 extern struct ceph_mds_request *
 ceph_mdsc_create_request(struct ceph_mds_client *mdsc, int op, int mode);
-extern void ceph_mdsc_submit_request(struct ceph_mds_client *mdsc,
-                                    struct ceph_mds_request *req);
+extern int ceph_mdsc_submit_request(struct ceph_mds_client *mdsc,
+                                   struct inode *dir,
+                                   struct ceph_mds_request *req);
 extern int ceph_mdsc_do_request(struct ceph_mds_client *mdsc,
                                struct inode *dir,
                                struct ceph_mds_request *req);
@@ -468,8 +487,18 @@ extern void ceph_flush_cap_releases(struct ceph_mds_client *mdsc,
                                    struct ceph_mds_session *session);
 extern void ceph_queue_cap_reclaim_work(struct ceph_mds_client *mdsc);
 extern void ceph_reclaim_caps_nr(struct ceph_mds_client *mdsc, int nr);
+extern int ceph_iterate_session_caps(struct ceph_mds_session *session,
+                                    int (*cb)(struct inode *,
+                                              struct ceph_cap *, void *),
+                                    void *arg);
 extern void ceph_mdsc_pre_umount(struct ceph_mds_client *mdsc);
 
+static inline void ceph_mdsc_free_path(char *path, int len)
+{
+       if (path)
+               __putname(path - (PATH_MAX - 1 - len));
+}
+
 extern char *ceph_mdsc_build_path(struct dentry *dentry, int *plen, u64 *base,
                                  int stop_on_nosnap);