summaryrefslogtreecommitdiff
path: root/fs/ceph/mds_client.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/ceph/mds_client.c')
-rw-r--r--fs/ceph/mds_client.c66
1 files changed, 43 insertions, 23 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index a50fca1e03be..a1ee8fa3a8e7 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -60,7 +60,8 @@ static const struct ceph_connection_operations mds_con_ops;
* parse individual inode info
*/
static int parse_reply_info_in(void **p, void *end,
- struct ceph_mds_reply_info_in *info)
+ struct ceph_mds_reply_info_in *info,
+ int features)
{
int err = -EIO;
@@ -74,6 +75,12 @@ static int parse_reply_info_in(void **p, void *end,
info->symlink = *p;
*p += info->symlink_len;
+ if (features & CEPH_FEATURE_DIRLAYOUTHASH)
+ ceph_decode_copy_safe(p, end, &info->dir_layout,
+ sizeof(info->dir_layout), bad);
+ else
+ memset(&info->dir_layout, 0, sizeof(info->dir_layout));
+
ceph_decode_32_safe(p, end, info->xattr_len, bad);
ceph_decode_need(p, end, info->xattr_len, bad);
info->xattr_data = *p;
@@ -88,12 +95,13 @@ bad:
* target inode.
*/
static int parse_reply_info_trace(void **p, void *end,
- struct ceph_mds_reply_info_parsed *info)
+ struct ceph_mds_reply_info_parsed *info,
+ int features)
{
int err;
if (info->head->is_dentry) {
- err = parse_reply_info_in(p, end, &info->diri);
+ err = parse_reply_info_in(p, end, &info->diri, features);
if (err < 0)
goto out_bad;
@@ -114,7 +122,7 @@ static int parse_reply_info_trace(void **p, void *end,
}
if (info->head->is_target) {
- err = parse_reply_info_in(p, end, &info->targeti);
+ err = parse_reply_info_in(p, end, &info->targeti, features);
if (err < 0)
goto out_bad;
}
@@ -134,7 +142,8 @@ out_bad:
* parse readdir results
*/
static int parse_reply_info_dir(void **p, void *end,
- struct ceph_mds_reply_info_parsed *info)
+ struct ceph_mds_reply_info_parsed *info,
+ int features)
{
u32 num, i = 0;
int err;
@@ -182,7 +191,7 @@ static int parse_reply_info_dir(void **p, void *end,
*p += sizeof(struct ceph_mds_reply_lease);
/* inode */
- err = parse_reply_info_in(p, end, &info->dir_in[i]);
+ err = parse_reply_info_in(p, end, &info->dir_in[i], features);
if (err < 0)
goto out_bad;
i++;
@@ -205,7 +214,8 @@ out_bad:
* parse fcntl F_GETLK results
*/
static int parse_reply_info_filelock(void **p, void *end,
- struct ceph_mds_reply_info_parsed *info)
+ struct ceph_mds_reply_info_parsed *info,
+ int features)
{
if (*p + sizeof(*info->filelock_reply) > end)
goto bad;
@@ -225,19 +235,21 @@ bad:
* parse extra results
*/
static int parse_reply_info_extra(void **p, void *end,
- struct ceph_mds_reply_info_parsed *info)
+ struct ceph_mds_reply_info_parsed *info,
+ int features)
{
if (info->head->op == CEPH_MDS_OP_GETFILELOCK)
- return parse_reply_info_filelock(p, end, info);
+ return parse_reply_info_filelock(p, end, info, features);
else
- return parse_reply_info_dir(p, end, info);
+ return parse_reply_info_dir(p, end, info, features);
}
/*
* parse entire mds reply
*/
static int parse_reply_info(struct ceph_msg *msg,
- struct ceph_mds_reply_info_parsed *info)
+ struct ceph_mds_reply_info_parsed *info,
+ int features)
{
void *p, *end;
u32 len;
@@ -250,7 +262,7 @@ static int parse_reply_info(struct ceph_msg *msg,
/* trace */
ceph_decode_32_safe(&p, end, len, bad);
if (len > 0) {
- err = parse_reply_info_trace(&p, p+len, info);
+ err = parse_reply_info_trace(&p, p+len, info, features);
if (err < 0)
goto out_bad;
}
@@ -258,7 +270,7 @@ static int parse_reply_info(struct ceph_msg *msg,
/* extra */
ceph_decode_32_safe(&p, end, len, bad);
if (len > 0) {
- err = parse_reply_info_extra(&p, p+len, info);
+ err = parse_reply_info_extra(&p, p+len, info, features);
if (err < 0)
goto out_bad;
}
@@ -654,7 +666,7 @@ static int __choose_mds(struct ceph_mds_client *mdsc,
} else {
/* dir + name */
inode = dir;
- hash = req->r_dentry->d_name.hash;
+ hash = ceph_dentry_hash(req->r_dentry);
is_hash = true;
}
}
@@ -681,9 +693,11 @@ static int __choose_mds(struct ceph_mds_client *mdsc,
dout("choose_mds %p %llx.%llx "
"frag %u mds%d (%d/%d)\n",
inode, ceph_vinop(inode),
- frag.frag, frag.mds,
+ frag.frag, mds,
(int)r, frag.ndist);
- return mds;
+ if (ceph_mdsmap_get_state(mdsc->mdsmap, mds) >=
+ CEPH_MDS_STATE_ACTIVE)
+ return mds;
}
/* since this file/dir wasn't known to be
@@ -696,7 +710,9 @@ static int __choose_mds(struct ceph_mds_client *mdsc,
dout("choose_mds %p %llx.%llx "
"frag %u mds%d (auth)\n",
inode, ceph_vinop(inode), frag.frag, mds);
- return mds;
+ if (ceph_mdsmap_get_state(mdsc->mdsmap, mds) >=
+ CEPH_MDS_STATE_ACTIVE)
+ return mds;
}
}
}
@@ -1693,7 +1709,6 @@ static int __prepare_send_request(struct ceph_mds_client *mdsc,
struct ceph_msg *msg;
int flags = 0;
- req->r_mds = mds;
req->r_attempts++;
if (req->r_inode) {
struct ceph_cap *cap =
@@ -1780,6 +1795,8 @@ static int __do_request(struct ceph_mds_client *mdsc,
goto finish;
}
+ put_request_session(req);
+
mds = __choose_mds(mdsc, req);
if (mds < 0 ||
ceph_mdsmap_get_state(mdsc->mdsmap, mds) < CEPH_MDS_STATE_ACTIVE) {
@@ -1797,6 +1814,8 @@ static int __do_request(struct ceph_mds_client *mdsc,
goto finish;
}
}
+ req->r_session = get_session(session);
+
dout("do_request mds%d session %p state %s\n", mds, session,
session_state_name(session->s_state));
if (session->s_state != CEPH_MDS_SESSION_OPEN &&
@@ -1809,7 +1828,6 @@ static int __do_request(struct ceph_mds_client *mdsc,
}
/* send request */
- req->r_session = get_session(session);
req->r_resend_mds = -1; /* forget any previous mds hint */
if (req->r_request_started == 0) /* note request start time */
@@ -1863,7 +1881,6 @@ static void kick_requests(struct ceph_mds_client *mdsc, int mds)
if (req->r_session &&
req->r_session->s_mds == mds) {
dout(" kicking tid %llu\n", req->r_tid);
- put_request_session(req);
__do_request(mdsc, req);
}
}
@@ -2056,8 +2073,11 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg)
goto out;
} else {
struct ceph_inode_info *ci = ceph_inode(req->r_inode);
- struct ceph_cap *cap =
- ceph_get_cap_for_mds(ci, req->r_mds);;
+ struct ceph_cap *cap = NULL;
+
+ if (req->r_session)
+ cap = ceph_get_cap_for_mds(ci,
+ req->r_session->s_mds);
dout("already using auth");
if ((!cap || cap != ci->i_auth_cap) ||
@@ -2101,7 +2121,7 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg)
dout("handle_reply tid %lld result %d\n", tid, result);
rinfo = &req->r_reply_info;
- err = parse_reply_info(msg, rinfo);
+ err = parse_reply_info(msg, rinfo, session->s_con.peer_features);
mutex_unlock(&mdsc->mutex);
mutex_lock(&session->s_mutex);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-28 00:20:42 +0300