ceph: clean up readdir caps reservation
Use a global counter for the minimum number of allocated caps instead of
hard coding a check against readdir_max. This takes into account multiple
client instances, and avoids examining the superblock mount options when a
cap is dropped.
Signed-off-by: Sage Weil <sage@newdream.net>
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 1f39287..3b5faf9 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -129,6 +129,8 @@
int auth_err;
+ int min_caps; /* min caps i added */
+
struct ceph_messenger *msgr; /* messenger instance */
struct ceph_mon_client monc;
struct ceph_mds_client mdsc;
@@ -557,11 +559,12 @@
extern void ceph_caps_init(void);
extern void ceph_caps_finalize(void);
+extern void ceph_adjust_min_caps(int delta);
extern int ceph_reserve_caps(struct ceph_cap_reservation *ctx, int need);
extern int ceph_unreserve_caps(struct ceph_cap_reservation *ctx);
extern void ceph_reservation_status(struct ceph_client *client,
int *total, int *avail, int *used,
- int *reserved);
+ int *reserved, int *min);
static inline struct ceph_client *ceph_inode_to_client(struct inode *inode)
{