ceph: record truncate size/seq for snap data writeback

[karo-tx-linux.git] / fs / ceph / super.h

diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 3e3fa916305968e837fa02ae473efe63b8f366d6..1b31ec6d61b86e5482217b99bc791cdaa46a49f0 100644 (file)
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -36,6 +36,7 @@
 #define CEPH_MOUNT_OPT_DCACHE          (1<<9) /* use dcache for readdir etc */
 #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_DEFAULT    CEPH_MOUNT_OPT_DCACHE
 
@@ -180,6 +181,8 @@ struct ceph_cap_snap {
        u64 size;
        struct timespec mtime, atime, ctime;
        u64 time_warp_seq;
+       u64 truncate_size;
+       u32 truncate_seq;
        int writing;   /* a sync write is still in progress */
        int dirty_pages;     /* dirty pages awaiting writeback */
        bool inline_data;
@@ -905,6 +908,8 @@ extern int ceph_encode_dentry_release(void **p, struct dentry *dn,
 
 extern int ceph_get_caps(struct ceph_inode_info *ci, int need, int want,
                         loff_t endoff, int *got, struct page **pinned_page);
+extern int ceph_try_get_caps(struct ceph_inode_info *ci,
+                            int need, int want, int *got);
 
 /* for counting open files by mode */
 extern void __ceph_get_fmode(struct ceph_inode_info *ci, int mode);