diff options
| author | Jeff Layton <jlayton@kernel.org> | 2019-04-24 18:05:15 +0200 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2019-05-07 19:22:37 +0200 |
| commit | ff4a80bf2d3f8005dc5890381bc8ca48e259c60d (patch) | |
| tree | 8ed03ad8f22d9c69baf5790235f0417bcf3f6e6b /fs | |
| parent | ceph: make iterate_session_caps a public symbol (diff) | |
| download | linux-ff4a80bf2d3f8005dc5890381bc8ca48e259c60d.tar.xz linux-ff4a80bf2d3f8005dc5890381bc8ca48e259c60d.zip | |
ceph: dump granular cap info in "caps" debugfs file
We have a "caps" file already that gives statistics on the caps
cache as a whole. Add another section to that output and dump a
line for each individual cap record.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ceph/debugfs.c | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c index 98365e74cb4a..777f6ceb5259 100644 --- a/fs/ceph/debugfs.c +++ b/fs/ceph/debugfs.c @@ -124,18 +124,48 @@ static int mdsc_show(struct seq_file *s, void *p) return 0; } +static int caps_show_cb(struct inode *inode, struct ceph_cap *cap, void *p) +{ + 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)); + return 0; +} + static int caps_show(struct seq_file *s, void *p) { struct ceph_fs_client *fsc = s->private; - int total, avail, used, reserved, min; + struct ceph_mds_client *mdsc = fsc->mdsc; + int total, avail, used, reserved, min, i; ceph_reservation_status(fsc, &total, &avail, &used, &reserved, &min); seq_printf(s, "total\t\t%d\n" "avail\t\t%d\n" "used\t\t%d\n" "reserved\t%d\n" - "min\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"); + + mutex_lock(&mdsc->mutex); + for (i = 0; i < mdsc->max_sessions; i++) { + struct ceph_mds_session *session; + + session = __ceph_lookup_mds_session(mdsc, i); + if (!session) + continue; + mutex_unlock(&mdsc->mutex); + mutex_lock(&session->s_mutex); + ceph_iterate_session_caps(session, caps_show_cb, s); + mutex_unlock(&session->s_mutex); + ceph_put_mds_session(session); + mutex_lock(&mdsc->mutex); + } + mutex_unlock(&mdsc->mutex); + return 0; } |