diff options
| author | Max Kellermann <max.kellermann@ionos.com> | 2024-06-06 18:41:57 +0200 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2024-07-23 10:01:57 +0200 |
| commit | 65d284a38c0ded391ae04a29640c34221c934cd2 (patch) | |
| tree | 94637df7a23f8615b887877fe2398fffb0517a99 /fs/ceph | |
| parent | 0c3836482481200ead7b416ca80c68a29cfdaabd (diff) | |
ceph: use cap_wait_list only if debugfs is enabled
Only debugfs uses this list. By omitting it, we save some memory and
reduce lock contention on `caps_list_lock`.
Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph')
| -rw-r--r-- | fs/ceph/caps.c | 6 | ||||
| -rw-r--r-- | fs/ceph/mds_client.c | 2 | ||||
| -rw-r--r-- | fs/ceph/mds_client.h | 6 |
3 files changed, 14 insertions, 0 deletions
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index c4941ba245ac..e98aa8219303 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -3067,10 +3067,13 @@ int __ceph_get_caps(struct inode *inode, struct ceph_file_info *fi, int need, flags, &_got); WARN_ON_ONCE(ret == -EAGAIN); if (!ret) { +#ifdef CONFIG_DEBUG_FS struct ceph_mds_client *mdsc = fsc->mdsc; struct cap_wait cw; +#endif DEFINE_WAIT_FUNC(wait, woken_wake_function); +#ifdef CONFIG_DEBUG_FS cw.ino = ceph_ino(inode); cw.tgid = current->tgid; cw.need = need; @@ -3079,6 +3082,7 @@ int __ceph_get_caps(struct inode *inode, struct ceph_file_info *fi, int need, spin_lock(&mdsc->caps_list_lock); list_add(&cw.list, &mdsc->cap_wait_list); spin_unlock(&mdsc->caps_list_lock); +#endif /* make sure used fmode not timeout */ ceph_get_fmode(ci, flags, FMODE_WAIT_BIAS); @@ -3097,9 +3101,11 @@ int __ceph_get_caps(struct inode *inode, struct ceph_file_info *fi, int need, remove_wait_queue(&ci->i_cap_wq, &wait); ceph_put_fmode(ci, flags, FMODE_WAIT_BIAS); +#ifdef CONFIG_DEBUG_FS spin_lock(&mdsc->caps_list_lock); list_del(&cw.list); spin_unlock(&mdsc->caps_list_lock); +#endif if (ret == -EAGAIN) continue; diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index c2157f6e0c69..62238f3e6e19 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -5505,7 +5505,9 @@ int ceph_mdsc_init(struct ceph_fs_client *fsc) INIT_DELAYED_WORK(&mdsc->delayed_work, delayed_work); mdsc->last_renew_caps = jiffies; INIT_LIST_HEAD(&mdsc->cap_delay_list); +#ifdef CONFIG_DEBUG_FS INIT_LIST_HEAD(&mdsc->cap_wait_list); +#endif spin_lock_init(&mdsc->cap_delay_lock); INIT_LIST_HEAD(&mdsc->cap_unlink_delay_list); INIT_LIST_HEAD(&mdsc->snap_flush_list); diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h index cfa18cf915a0..9bcc7f181bfe 100644 --- a/fs/ceph/mds_client.h +++ b/fs/ceph/mds_client.h @@ -416,6 +416,8 @@ struct ceph_quotarealm_inode { struct inode *inode; }; +#ifdef CONFIG_DEBUG_FS + struct cap_wait { struct list_head list; u64 ino; @@ -424,6 +426,8 @@ struct cap_wait { int want; }; +#endif + enum { CEPH_MDSC_STOPPING_BEGIN = 1, CEPH_MDSC_STOPPING_FLUSHING = 2, @@ -512,7 +516,9 @@ struct ceph_mds_client { spinlock_t caps_list_lock; struct list_head caps_list; /* unused (reserved or unreserved) */ +#ifdef CONFIG_DEBUG_FS struct list_head cap_wait_list; +#endif int caps_total_count; /* total caps allocated */ int caps_use_count; /* in use */ int caps_use_max; /* max used caps */ |