ceph: use i_ceph_lock instead of i_lock
We have been using i_lock to protect all kinds of data structures in the
ceph_inode_info struct, including lists of inodes that we need to iterate
over while avoiding races with inode destruction. That requires grabbing
a reference to the inode with the list lock protected, but igrab() now
takes i_lock to check the inode flags.
Changing the list lock ordering would be a painful process.
However, using a ceph-specific i_ceph_lock in the ceph inode instead of
i_lock is a simple mechanical change and avoids the ordering constraints
imposed by igrab().
Reported-by: Amon Ott <a.ott@m-privacy.de>
Signed-off-by: Sage Weil <sage@newdream.net>
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 0f327c6..8b53193 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -309,7 +309,7 @@
/*
* Find ceph_cap for given mds, if any.
*
- * Called with i_lock held.
+ * Called with i_ceph_lock held.
*/
static struct ceph_cap *__get_cap_for_mds(struct ceph_inode_info *ci, int mds)
{
@@ -332,9 +332,9 @@
{
struct ceph_cap *cap;
- spin_lock(&ci->vfs_inode.i_lock);
+ spin_lock(&ci->i_ceph_lock);
cap = __get_cap_for_mds(ci, mds);
- spin_unlock(&ci->vfs_inode.i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return cap;
}
@@ -361,15 +361,16 @@
int ceph_get_cap_mds(struct inode *inode)
{
+ struct ceph_inode_info *ci = ceph_inode(inode);
int mds;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
mds = __ceph_get_cap_mds(ceph_inode(inode));
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return mds;
}
/*
- * Called under i_lock.
+ * Called under i_ceph_lock.
*/
static void __insert_cap_node(struct ceph_inode_info *ci,
struct ceph_cap *new)
@@ -415,7 +416,7 @@
*
* If I_FLUSH is set, leave the inode at the front of the list.
*
- * Caller holds i_lock
+ * Caller holds i_ceph_lock
* -> we take mdsc->cap_delay_lock
*/
static void __cap_delay_requeue(struct ceph_mds_client *mdsc,
@@ -457,7 +458,7 @@
/*
* Cancel delayed work on cap.
*
- * Caller must hold i_lock.
+ * Caller must hold i_ceph_lock.
*/
static void __cap_delay_cancel(struct ceph_mds_client *mdsc,
struct ceph_inode_info *ci)
@@ -532,14 +533,14 @@
wanted |= ceph_caps_for_mode(fmode);
retry:
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
cap = __get_cap_for_mds(ci, mds);
if (!cap) {
if (new_cap) {
cap = new_cap;
new_cap = NULL;
} else {
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
new_cap = get_cap(mdsc, caps_reservation);
if (new_cap == NULL)
return -ENOMEM;
@@ -625,7 +626,7 @@
if (fmode >= 0)
__ceph_get_fmode(ci, fmode);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
wake_up_all(&ci->i_cap_wq);
return 0;
}
@@ -792,7 +793,7 @@
struct rb_node *p;
int ret = 0;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
for (p = rb_first(&ci->i_caps); p; p = rb_next(p)) {
cap = rb_entry(p, struct ceph_cap, ci_node);
if (__cap_is_valid(cap) &&
@@ -801,7 +802,7 @@
break;
}
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
dout("ceph_caps_revoking %p %s = %d\n", inode,
ceph_cap_string(mask), ret);
return ret;
@@ -855,7 +856,7 @@
}
/*
- * called under i_lock
+ * called under i_ceph_lock
*/
static int __ceph_is_any_caps(struct ceph_inode_info *ci)
{
@@ -865,7 +866,7 @@
/*
* Remove a cap. Take steps to deal with a racing iterate_session_caps.
*
- * caller should hold i_lock.
+ * caller should hold i_ceph_lock.
* caller will not hold session s_mutex if called from destroy_inode.
*/
void __ceph_remove_cap(struct ceph_cap *cap)
@@ -1028,7 +1029,7 @@
/*
* Queue cap releases when an inode is dropped from our cache. Since
- * inode is about to be destroyed, there is no need for i_lock.
+ * inode is about to be destroyed, there is no need for i_ceph_lock.
*/
void ceph_queue_caps_release(struct inode *inode)
{
@@ -1049,7 +1050,7 @@
/*
* Send a cap msg on the given inode. Update our caps state, then
- * drop i_lock and send the message.
+ * drop i_ceph_lock and send the message.
*
* Make note of max_size reported/requested from mds, revoked caps
* that have now been implemented.
@@ -1061,13 +1062,13 @@
* Return non-zero if delayed release, or we experienced an error
* such that the caller should requeue + retry later.
*
- * called with i_lock, then drops it.
+ * called with i_ceph_lock, then drops it.
* caller should hold snap_rwsem (read), s_mutex.
*/
static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap,
int op, int used, int want, int retain, int flushing,
unsigned *pflush_tid)
- __releases(cap->ci->vfs_inode->i_lock)
+ __releases(cap->ci->i_ceph_lock)
{
struct ceph_inode_info *ci = cap->ci;
struct inode *inode = &ci->vfs_inode;
@@ -1170,7 +1171,7 @@
xattr_version = ci->i_xattrs.version;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
ret = send_cap_msg(session, ceph_vino(inode).ino, cap_id,
op, keep, want, flushing, seq, flush_tid, issue_seq, mseq,
@@ -1198,13 +1199,13 @@
* Unless @again is true, skip cap_snaps that were already sent to
* the MDS (i.e., during this session).
*
- * Called under i_lock. Takes s_mutex as needed.
+ * Called under i_ceph_lock. Takes s_mutex as needed.
*/
void __ceph_flush_snaps(struct ceph_inode_info *ci,
struct ceph_mds_session **psession,
int again)
- __releases(ci->vfs_inode->i_lock)
- __acquires(ci->vfs_inode->i_lock)
+ __releases(ci->i_ceph_lock)
+ __acquires(ci->i_ceph_lock)
{
struct inode *inode = &ci->vfs_inode;
int mds;
@@ -1261,7 +1262,7 @@
session = NULL;
}
if (!session) {
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
mutex_lock(&mdsc->mutex);
session = __ceph_lookup_mds_session(mdsc, mds);
mutex_unlock(&mdsc->mutex);
@@ -1275,7 +1276,7 @@
* deletion or migration. retry, and we'll
* get a better @mds value next time.
*/
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
goto retry;
}
@@ -1285,7 +1286,7 @@
list_del_init(&capsnap->flushing_item);
list_add_tail(&capsnap->flushing_item,
&session->s_cap_snaps_flushing);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
dout("flush_snaps %p cap_snap %p follows %lld tid %llu\n",
inode, capsnap, capsnap->follows, capsnap->flush_tid);
@@ -1302,7 +1303,7 @@
next_follows = capsnap->follows + 1;
ceph_put_cap_snap(capsnap);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
goto retry;
}
@@ -1322,11 +1323,9 @@
static void ceph_flush_snaps(struct ceph_inode_info *ci)
{
- struct inode *inode = &ci->vfs_inode;
-
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
__ceph_flush_snaps(ci, NULL, 0);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
/*
@@ -1373,7 +1372,7 @@
* Add dirty inode to the flushing list. Assigned a seq number so we
* can wait for caps to flush without starving.
*
- * Called under i_lock.
+ * Called under i_ceph_lock.
*/
static int __mark_caps_flushing(struct inode *inode,
struct ceph_mds_session *session)
@@ -1421,9 +1420,9 @@
struct ceph_inode_info *ci = ceph_inode(inode);
u32 invalidating_gen = ci->i_rdcache_gen;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
invalidate_mapping_pages(&inode->i_data, 0, -1);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (inode->i_data.nrpages == 0 &&
invalidating_gen == ci->i_rdcache_gen) {
@@ -1470,7 +1469,7 @@
if (mdsc->stopping)
is_delayed = 1;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (ci->i_ceph_flags & CEPH_I_FLUSH)
flags |= CHECK_CAPS_FLUSH;
@@ -1480,7 +1479,7 @@
__ceph_flush_snaps(ci, &session, 0);
goto retry_locked;
retry:
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
retry_locked:
file_wanted = __ceph_caps_file_wanted(ci);
used = __ceph_caps_used(ci);
@@ -1634,7 +1633,7 @@
if (mutex_trylock(&session->s_mutex) == 0) {
dout("inverting session/ino locks on %p\n",
session);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (took_snap_rwsem) {
up_read(&mdsc->snap_rwsem);
took_snap_rwsem = 0;
@@ -1648,7 +1647,7 @@
if (down_read_trylock(&mdsc->snap_rwsem) == 0) {
dout("inverting snap/in locks on %p\n",
inode);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
down_read(&mdsc->snap_rwsem);
took_snap_rwsem = 1;
goto retry;
@@ -1664,10 +1663,10 @@
mds = cap->mds; /* remember mds, so we don't repeat */
sent++;
- /* __send_cap drops i_lock */
+ /* __send_cap drops i_ceph_lock */
delayed += __send_cap(mdsc, cap, CEPH_CAP_OP_UPDATE, used, want,
retain, flushing, NULL);
- goto retry; /* retake i_lock and restart our cap scan. */
+ goto retry; /* retake i_ceph_lock and restart our cap scan. */
}
/*
@@ -1681,7 +1680,7 @@
else if (!is_delayed || force_requeue)
__cap_delay_requeue(mdsc, ci);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (queue_invalidate)
ceph_queue_invalidate(inode);
@@ -1704,7 +1703,7 @@
int flushing = 0;
retry:
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (ci->i_ceph_flags & CEPH_I_NOFLUSH) {
dout("try_flush_caps skipping %p I_NOFLUSH set\n", inode);
goto out;
@@ -1716,7 +1715,7 @@
int delayed;
if (!session) {
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
session = cap->session;
mutex_lock(&session->s_mutex);
goto retry;
@@ -1727,18 +1726,18 @@
flushing = __mark_caps_flushing(inode, session);
- /* __send_cap drops i_lock */
+ /* __send_cap drops i_ceph_lock */
delayed = __send_cap(mdsc, cap, CEPH_CAP_OP_FLUSH, used, want,
cap->issued | cap->implemented, flushing,
flush_tid);
if (!delayed)
goto out_unlocked;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
__cap_delay_requeue(mdsc, ci);
}
out:
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
out_unlocked:
if (session && unlock_session)
mutex_unlock(&session->s_mutex);
@@ -1753,7 +1752,7 @@
struct ceph_inode_info *ci = ceph_inode(inode);
int i, ret = 1;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
for (i = 0; i < CEPH_CAP_BITS; i++)
if ((ci->i_flushing_caps & (1 << i)) &&
ci->i_cap_flush_tid[i] <= tid) {
@@ -1761,7 +1760,7 @@
ret = 0;
break;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return ret;
}
@@ -1868,10 +1867,10 @@
struct ceph_mds_client *mdsc =
ceph_sb_to_client(inode->i_sb)->mdsc;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (__ceph_caps_dirty(ci))
__cap_delay_requeue_front(mdsc, ci);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
return err;
}
@@ -1894,7 +1893,7 @@
struct inode *inode = &ci->vfs_inode;
struct ceph_cap *cap;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
cap = ci->i_auth_cap;
if (cap && cap->session == session) {
dout("kick_flushing_caps %p cap %p capsnap %p\n", inode,
@@ -1904,7 +1903,7 @@
pr_err("%p auth cap %p not mds%d ???\n", inode,
cap, session->s_mds);
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
}
@@ -1921,7 +1920,7 @@
struct ceph_cap *cap;
int delayed = 0;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
cap = ci->i_auth_cap;
if (cap && cap->session == session) {
dout("kick_flushing_caps %p cap %p %s\n", inode,
@@ -1932,14 +1931,14 @@
cap->issued | cap->implemented,
ci->i_flushing_caps, NULL);
if (delayed) {
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
__cap_delay_requeue(mdsc, ci);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
} else {
pr_err("%p auth cap %p not mds%d ???\n", inode,
cap, session->s_mds);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
}
}
@@ -1952,7 +1951,7 @@
struct ceph_cap *cap;
int delayed = 0;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
cap = ci->i_auth_cap;
dout("kick_flushing_inode_caps %p flushing %s flush_seq %lld\n", inode,
ceph_cap_string(ci->i_flushing_caps), ci->i_cap_flush_seq);
@@ -1964,12 +1963,12 @@
cap->issued | cap->implemented,
ci->i_flushing_caps, NULL);
if (delayed) {
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
__cap_delay_requeue(mdsc, ci);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
} else {
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
}
@@ -1978,7 +1977,7 @@
* Take references to capabilities we hold, so that we don't release
* them to the MDS prematurely.
*
- * Protected by i_lock.
+ * Protected by i_ceph_lock.
*/
static void __take_cap_refs(struct ceph_inode_info *ci, int got)
{
@@ -2016,7 +2015,7 @@
dout("get_cap_refs %p need %s want %s\n", inode,
ceph_cap_string(need), ceph_cap_string(want));
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
/* make sure file is actually open */
file_wanted = __ceph_caps_file_wanted(ci);
@@ -2077,7 +2076,7 @@
ceph_cap_string(have), ceph_cap_string(need));
}
out:
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
dout("get_cap_refs %p ret %d got %s\n", inode,
ret, ceph_cap_string(*got));
return ret;
@@ -2094,7 +2093,7 @@
int check = 0;
/* do we need to explicitly request a larger max_size? */
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if ((endoff >= ci->i_max_size ||
endoff > (inode->i_size << 1)) &&
endoff > ci->i_wanted_max_size) {
@@ -2103,7 +2102,7 @@
ci->i_wanted_max_size = endoff;
check = 1;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (check)
ceph_check_caps(ci, CHECK_CAPS_AUTHONLY, NULL);
}
@@ -2140,9 +2139,9 @@
*/
void ceph_get_cap_refs(struct ceph_inode_info *ci, int caps)
{
- spin_lock(&ci->vfs_inode.i_lock);
+ spin_lock(&ci->i_ceph_lock);
__take_cap_refs(ci, caps);
- spin_unlock(&ci->vfs_inode.i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
/*
@@ -2160,7 +2159,7 @@
int last = 0, put = 0, flushsnaps = 0, wake = 0;
struct ceph_cap_snap *capsnap;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (had & CEPH_CAP_PIN)
--ci->i_pin_ref;
if (had & CEPH_CAP_FILE_RD)
@@ -2193,7 +2192,7 @@
}
}
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
dout("put_cap_refs %p had %s%s%s\n", inode, ceph_cap_string(had),
last ? " last" : "", put ? " put" : "");
@@ -2225,7 +2224,7 @@
int found = 0;
struct ceph_cap_snap *capsnap = NULL;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
ci->i_wrbuffer_ref -= nr;
last = !ci->i_wrbuffer_ref;
@@ -2274,7 +2273,7 @@
}
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (last) {
ceph_check_caps(ci, CHECK_CAPS_AUTHONLY, NULL);
@@ -2291,7 +2290,7 @@
* Handle a cap GRANT message from the MDS. (Note that a GRANT may
* actually be a revocation if it specifies a smaller cap set.)
*
- * caller holds s_mutex and i_lock, we drop both.
+ * caller holds s_mutex and i_ceph_lock, we drop both.
*
* return value:
* 0 - ok
@@ -2302,7 +2301,7 @@
struct ceph_mds_session *session,
struct ceph_cap *cap,
struct ceph_buffer *xattr_buf)
- __releases(inode->i_lock)
+ __releases(ci->i_ceph_lock)
{
struct ceph_inode_info *ci = ceph_inode(inode);
int mds = session->s_mds;
@@ -2453,7 +2452,7 @@
}
BUG_ON(cap->issued & ~cap->implemented);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (writeback)
/*
* queue inode for writeback: we can't actually call
@@ -2483,7 +2482,7 @@
struct ceph_mds_caps *m,
struct ceph_mds_session *session,
struct ceph_cap *cap)
- __releases(inode->i_lock)
+ __releases(ci->i_ceph_lock)
{
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
@@ -2539,7 +2538,7 @@
wake_up_all(&ci->i_cap_wq);
out:
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (drop)
iput(inode);
}
@@ -2562,7 +2561,7 @@
dout("handle_cap_flushsnap_ack inode %p ci %p mds%d follows %lld\n",
inode, ci, session->s_mds, follows);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
list_for_each_entry(capsnap, &ci->i_cap_snaps, ci_item) {
if (capsnap->follows == follows) {
if (capsnap->flush_tid != flush_tid) {
@@ -2585,7 +2584,7 @@
capsnap, capsnap->follows);
}
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (drop)
iput(inode);
}
@@ -2598,7 +2597,7 @@
static void handle_cap_trunc(struct inode *inode,
struct ceph_mds_caps *trunc,
struct ceph_mds_session *session)
- __releases(inode->i_lock)
+ __releases(ci->i_ceph_lock)
{
struct ceph_inode_info *ci = ceph_inode(inode);
int mds = session->s_mds;
@@ -2617,7 +2616,7 @@
inode, mds, seq, truncate_size, truncate_seq);
queue_trunc = ceph_fill_file_size(inode, issued,
truncate_seq, truncate_size, size);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (queue_trunc)
ceph_queue_vmtruncate(inode);
@@ -2646,7 +2645,7 @@
dout("handle_cap_export inode %p ci %p mds%d mseq %d\n",
inode, ci, mds, mseq);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
/* make sure we haven't seen a higher mseq */
for (p = rb_first(&ci->i_caps); p; p = rb_next(p)) {
@@ -2690,7 +2689,7 @@
}
/* else, we already released it */
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
/*
@@ -2745,9 +2744,9 @@
up_read(&mdsc->snap_rwsem);
/* make sure we re-request max_size, if necessary */
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
ci->i_requested_max_size = 0;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
/*
@@ -2762,6 +2761,7 @@
struct ceph_mds_client *mdsc = session->s_mdsc;
struct super_block *sb = mdsc->fsc->sb;
struct inode *inode;
+ struct ceph_inode_info *ci;
struct ceph_cap *cap;
struct ceph_mds_caps *h;
int mds = session->s_mds;
@@ -2815,6 +2815,7 @@
/* lookup ino */
inode = ceph_find_inode(sb, vino);
+ ci = ceph_inode(inode);
dout(" op %s ino %llx.%llx inode %p\n", ceph_cap_op_name(op), vino.ino,
vino.snap, inode);
if (!inode) {
@@ -2844,16 +2845,16 @@
}
/* the rest require a cap */
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
cap = __get_cap_for_mds(ceph_inode(inode), mds);
if (!cap) {
dout(" no cap on %p ino %llx.%llx from mds%d\n",
inode, ceph_ino(inode), ceph_snap(inode), mds);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
goto flush_cap_releases;
}
- /* note that each of these drops i_lock for us */
+ /* note that each of these drops i_ceph_lock for us */
switch (op) {
case CEPH_CAP_OP_REVOKE:
case CEPH_CAP_OP_GRANT:
@@ -2869,7 +2870,7 @@
break;
default:
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
pr_err("ceph_handle_caps: unknown cap op %d %s\n", op,
ceph_cap_op_name(op));
}
@@ -2962,13 +2963,13 @@
struct inode *inode = &ci->vfs_inode;
int last = 0;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
dout("put_fmode %p fmode %d %d -> %d\n", inode, fmode,
ci->i_nr_by_mode[fmode], ci->i_nr_by_mode[fmode]-1);
BUG_ON(ci->i_nr_by_mode[fmode] == 0);
if (--ci->i_nr_by_mode[fmode] == 0)
last++;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (last && ci->i_vino.snap == CEPH_NOSNAP)
ceph_check_caps(ci, 0, NULL);
@@ -2991,7 +2992,7 @@
int used, dirty;
int ret = 0;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
used = __ceph_caps_used(ci);
dirty = __ceph_caps_dirty(ci);
@@ -3046,7 +3047,7 @@
inode, cap, ceph_cap_string(cap->issued));
}
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return ret;
}
@@ -3061,7 +3062,7 @@
/*
* force an record for the directory caps if we have a dentry lease.
- * this is racy (can't take i_lock and d_lock together), but it
+ * this is racy (can't take i_ceph_lock and d_lock together), but it
* doesn't have to be perfect; the mds will revoke anything we don't
* release.
*/
