From: Jeff Layton <jlayton@kernel.org>
To: ceph-devel@vger.kernel.org
Cc: zyan@redhat.com, sage@redhat.com, idryomov@gmail.com,
pdonnell@redhat.com, xiubli@redhat.com
Subject: [RFC PATCH v2 04/10] ceph: make __take_cap_refs a public function
Date: Wed, 15 Jan 2020 15:59:06 -0500 [thread overview]
Message-ID: <20200115205912.38688-5-jlayton@kernel.org> (raw)
In-Reply-To: <20200115205912.38688-1-jlayton@kernel.org>
Rename it to ceph_take_cap_refs and make it available to other files.
Also replace a comment with a lockdep assertion.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
fs/ceph/caps.c | 12 ++++++------
fs/ceph/super.h | 2 ++
2 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 7fc87b693ba4..c983990acb75 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -2512,12 +2512,12 @@ static void kick_flushing_inode_caps(struct ceph_mds_client *mdsc,
/*
* Take references to capabilities we hold, so that we don't release
* them to the MDS prematurely.
- *
- * Protected by i_ceph_lock.
*/
-static void __take_cap_refs(struct ceph_inode_info *ci, int got,
+void ceph_take_cap_refs(struct ceph_inode_info *ci, int got,
bool snap_rwsem_locked)
{
+ lockdep_assert_held(&ci->i_ceph_lock);
+
if (got & CEPH_CAP_PIN)
ci->i_pin_ref++;
if (got & CEPH_CAP_FILE_RD)
@@ -2538,7 +2538,7 @@ static void __take_cap_refs(struct ceph_inode_info *ci, int got,
if (ci->i_wb_ref == 0)
ihold(&ci->vfs_inode);
ci->i_wb_ref++;
- dout("__take_cap_refs %p wb %d -> %d (?)\n",
+ dout("%s %p wb %d -> %d (?)\n", __func__,
&ci->vfs_inode, ci->i_wb_ref-1, ci->i_wb_ref);
}
}
@@ -2664,7 +2664,7 @@ static int try_get_cap_refs(struct inode *inode, int need, int want,
(need & CEPH_CAP_FILE_RD) &&
!(*got & CEPH_CAP_FILE_CACHE))
ceph_disable_fscache_readpage(ci);
- __take_cap_refs(ci, *got, true);
+ ceph_take_cap_refs(ci, *got, true);
ret = 1;
}
} else {
@@ -2896,7 +2896,7 @@ int ceph_get_caps(struct file *filp, int need, int want,
void ceph_get_cap_refs(struct ceph_inode_info *ci, int caps)
{
spin_lock(&ci->i_ceph_lock);
- __take_cap_refs(ci, caps, false);
+ ceph_take_cap_refs(ci, caps, false);
spin_unlock(&ci->i_ceph_lock);
}
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index f27b2bf9a3f5..cb7b549f0995 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -1062,6 +1062,8 @@ extern void ceph_kick_flushing_caps(struct ceph_mds_client *mdsc,
struct ceph_mds_session *session);
extern struct ceph_cap *ceph_get_cap_for_mds(struct ceph_inode_info *ci,
int mds);
+extern void ceph_take_cap_refs(struct ceph_inode_info *ci, int caps,
+ bool snap_rwsem_locked);
extern void ceph_get_cap_refs(struct ceph_inode_info *ci, int caps);
extern void ceph_put_cap_refs(struct ceph_inode_info *ci, int had);
extern void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
--
2.24.1
next prev parent reply other threads:[~2020-01-15 20:59 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-15 20:59 [RFC PATCH v2 00/10] ceph: asynchronous file create support Jeff Layton
2020-01-15 20:59 ` [RFC PATCH v2 01/10] libceph: export ceph_file_layout_is_valid Jeff Layton
2020-01-15 20:59 ` [RFC PATCH v2 02/10] ceph: make ceph_fill_inode non-static Jeff Layton
2020-01-15 20:59 ` [RFC PATCH v2 03/10] ceph: make dentry_lease_is_valid non-static Jeff Layton
2020-01-15 20:59 ` Jeff Layton [this message]
2020-01-15 20:59 ` [RFC PATCH v2 05/10] ceph: decode interval_sets for delegated inos Jeff Layton
2020-01-16 14:32 ` Yan, Zheng
2020-01-16 15:37 ` Jeff Layton
2020-01-15 20:59 ` [RFC PATCH v2 06/10] ceph: add flag to designate that a request is asynchronous Jeff Layton
2020-01-15 20:59 ` [RFC PATCH v2 07/10] ceph: add infrastructure for waiting for async create to complete Jeff Layton
2020-01-17 15:00 ` Ilya Dryomov
2020-01-17 16:49 ` Jeff Layton
2020-01-15 20:59 ` [RFC PATCH v2 08/10] ceph: add new MDS req field to hold delegated inode number Jeff Layton
2020-01-17 14:47 ` Ilya Dryomov
2020-01-17 16:53 ` Jeff Layton
2020-01-17 17:42 ` Ilya Dryomov
2020-01-17 18:31 ` Jeff Layton
2020-01-20 9:41 ` Ilya Dryomov
2020-01-15 20:59 ` [RFC PATCH v2 09/10] ceph: cache layout in parent dir on first sync create Jeff Layton
2020-01-15 20:59 ` [RFC PATCH v2 10/10] ceph: attempt to do async create when possible Jeff Layton
2020-01-16 15:09 ` Yan, Zheng
2020-01-16 16:21 ` Jeff Layton
2020-01-17 13:28 ` Yan, Zheng
2020-01-17 17:40 ` Jeff Layton
2020-01-18 2:42 ` Yan, Zheng
2020-01-15 21:30 ` [RFC PATCH v2 00/10] ceph: asynchronous file create support Jeff Layton
2020-01-16 8:57 ` Xiubo Li
2020-01-16 13:10 ` Yan, Zheng
2020-01-16 14:15 ` Jeff Layton
2020-01-20 13:20 ` Yan, Zheng
2020-01-21 10:56 ` Jeff Layton
2020-01-21 13:20 ` Yan, Zheng
2020-01-21 14:37 ` Jeff Layton
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