ceph: add more info to caps debugfs file

Show capid and which caps have outstanding references, and file
type (dir or file).

Signed-off-by: Jeff Layton <jlayton@kernel.org>

diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index fb7cabd98e7bb0cc3c44f028824206a9676bba21..150fc195d646d8fc073f547d4f0da2d6bb75b317 100644 (file)
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -126,11 +126,27 @@ static int mdsc_show(struct seq_file *s, void *p)
 
 static int caps_show_cb(struct inode *inode, struct ceph_cap *cap, void *p)
 {
+       int inuse = 0;
        struct seq_file *s = p;
-
-       seq_printf(s, "0x%-17lx%-17s%-17s\n", inode->i_ino,
-                  ceph_cap_string(cap->issued),
-                  ceph_cap_string(cap->implemented));
+       struct ceph_inode_info *ci = ceph_inode(inode);
+
+       if (ci->i_pin_ref)
+               inuse |= CEPH_CAP_PIN;
+       if (ci->i_rd_ref)
+               inuse |= CEPH_CAP_FILE_RD;
+       if (ci->i_rdcache_ref)
+               inuse |= CEPH_CAP_FILE_CACHE;
+       if (ci->i_fx_ref)
+               inuse |= CEPH_CAP_FILE_EXCL;
+       if (ci->i_wb_ref)
+               inuse |= CEPH_CAP_FILE_BUFFER;
+       if (ci->i_wr_ref)
+               inuse |= CEPH_CAP_FILE_WR;
+
+       seq_printf(s, "(%c)0x%-14lx0x%-17llx%-17s%-17s%-17s\n",
+                  S_ISDIR(inode->i_mode) ? 'd' : 'f', inode->i_ino,
+                  cap->cap_id, ceph_cap_string(cap->issued),
+                  ceph_cap_string(cap->implemented), ceph_cap_string(inuse));
        return 0;
 }
 
@@ -148,8 +164,8 @@ static int caps_show(struct seq_file *s, void *p)
                   "reserved\t%d\n"
                   "min\t\t%d\n\n",
                   total, avail, used, reserved, min);
-       seq_printf(s, "ino                issued           implemented\n");
-       seq_printf(s, "-----------------------------------------------\n");
+       seq_printf(s, "ino                cap_id             issued           implemented      in use\n");
+       seq_printf(s, "----------------------------------------------------------------------------------------\n");
 
        mutex_lock(&mdsc->mutex);
        for (i = 0; i < mdsc->max_sessions; i++) {