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| author | Xiubo Li <xiubli@redhat.com> | 2020-09-03 09:01:40 -0400 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2020-10-12 15:29:26 +0200 |
| commit | 1dd8d470813699baab9112e95fce00979b21c4f7 (patch) | |
| tree | fac3dd9bc808ffbe8ddc9636b4486848e794f1ab /fs/ceph/inode.c | |
| parent | 2678da88f4b449300d56e0e7a9e77d1a79c83463 (diff) | |
| download | linux-1dd8d470813699baab9112e95fce00979b21c4f7.tar.bz2 | |
ceph: metrics for opened files, pinned caps and opened inodes
In client for each inode, it may have many opened files and may
have been pinned in more than one MDS servers. And some inodes
are idle, which have no any opened files.
This patch will show these metrics in the debugfs, likes:
item total
-----------------------------------------
opened files / total inodes 14 / 5
pinned i_caps / total inodes 7 / 5
opened inodes / total inodes 3 / 5
Will send these metrics to ceph, which will be used by the `fs top`,
later.
[ jlayton: drop unrelated hunk, count hashed inodes instead of
allocated ones ]
URL: https://tracker.ceph.com/issues/47005
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/inode.c')
| -rw-r--r-- | fs/ceph/inode.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 1fed0e827eb7..526faf4778ce 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -42,10 +42,13 @@ static void ceph_inode_work(struct work_struct *work); static int ceph_set_ino_cb(struct inode *inode, void *data) { struct ceph_inode_info *ci = ceph_inode(inode); + struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb); ci->i_vino = *(struct ceph_vino *)data; inode->i_ino = ceph_vino_to_ino_t(ci->i_vino); inode_set_iversion_raw(inode, 0); + percpu_counter_inc(&mdsc->metric.total_inodes); + return 0; } @@ -538,11 +541,14 @@ void ceph_free_inode(struct inode *inode) void ceph_evict_inode(struct inode *inode) { struct ceph_inode_info *ci = ceph_inode(inode); + struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb); struct ceph_inode_frag *frag; struct rb_node *n; dout("evict_inode %p ino %llx.%llx\n", inode, ceph_vinop(inode)); + percpu_counter_dec(&mdsc->metric.total_inodes); + truncate_inode_pages_final(&inode->i_data); clear_inode(inode); @@ -558,7 +564,6 @@ void ceph_evict_inode(struct inode *inode) * caps in i_snap_caps. */ if (ci->i_snap_realm) { - struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb); if (ceph_snap(inode) == CEPH_NOSNAP) { struct ceph_snap_realm *realm = ci->i_snap_realm; dout(" dropping residual ref to snap realm %p\n", |