ceph: define new argument structure for send_cap_msg
When we get to this many arguments, it's hard to work with positional parameters. send_cap_msg is already at 25 arguments, with more needed. Define a new args structure and pass a pointer to it to send_cap_msg. Eventually it might make sense to embed one of these inside ceph_cap_snap instead of tracking individual fields. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Yan, Zheng <zyan@redhat.com>zero-colors
Jeff Layton
Ilya Dryomov
parent
9670079f5f
commit
0ff8bfb394
217
fs/ceph/caps.c
217
fs/ceph/caps.c
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@ -987,22 +987,27 @@ void __ceph_remove_cap(struct ceph_cap *cap, bool queue_release)
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__cap_delay_cancel(mdsc, ci);
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}
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struct cap_msg_args {
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struct ceph_mds_session *session;
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u64 ino, cid, follows;
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u64 flush_tid, oldest_flush_tid, size, max_size;
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u64 xattr_version;
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struct ceph_buffer *xattr_buf;
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struct timespec atime, mtime, ctime;
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int op, caps, wanted, dirty;
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u32 seq, issue_seq, mseq, time_warp_seq;
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kuid_t uid;
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kgid_t gid;
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umode_t mode;
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bool inline_data;
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};
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/*
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* Build and send a cap message to the given MDS.
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*
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* Caller should be holding s_mutex.
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*/
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static int send_cap_msg(struct ceph_mds_session *session,
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u64 ino, u64 cid, int op,
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int caps, int wanted, int dirty,
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u32 seq, u64 flush_tid, u64 oldest_flush_tid,
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u32 issue_seq, u32 mseq, u64 size, u64 max_size,
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struct timespec *mtime, struct timespec *atime,
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struct timespec *ctime, u32 time_warp_seq,
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kuid_t uid, kgid_t gid, umode_t mode,
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u64 xattr_version,
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struct ceph_buffer *xattrs_buf,
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u64 follows, bool inline_data)
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static int send_cap_msg(struct cap_msg_args *arg)
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{
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struct ceph_mds_caps *fc;
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struct ceph_msg *msg;
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@ -1011,12 +1016,13 @@ static int send_cap_msg(struct ceph_mds_session *session,
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dout("send_cap_msg %s %llx %llx caps %s wanted %s dirty %s"
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" seq %u/%u tid %llu/%llu mseq %u follows %lld size %llu/%llu"
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" xattr_ver %llu xattr_len %d\n", ceph_cap_op_name(op),
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cid, ino, ceph_cap_string(caps), ceph_cap_string(wanted),
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ceph_cap_string(dirty),
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seq, issue_seq, flush_tid, oldest_flush_tid,
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mseq, follows, size, max_size,
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xattr_version, xattrs_buf ? (int)xattrs_buf->vec.iov_len : 0);
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" xattr_ver %llu xattr_len %d\n", ceph_cap_op_name(arg->op),
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arg->cid, arg->ino, ceph_cap_string(arg->caps),
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ceph_cap_string(arg->wanted), ceph_cap_string(arg->dirty),
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arg->seq, arg->issue_seq, arg->flush_tid, arg->oldest_flush_tid,
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arg->mseq, arg->follows, arg->size, arg->max_size,
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arg->xattr_version,
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arg->xattr_buf ? (int)arg->xattr_buf->vec.iov_len : 0);
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/* flock buffer size + inline version + inline data size +
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* osd_epoch_barrier + oldest_flush_tid */
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@ -1027,56 +1033,53 @@ static int send_cap_msg(struct ceph_mds_session *session,
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return -ENOMEM;
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msg->hdr.version = cpu_to_le16(6);
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msg->hdr.tid = cpu_to_le64(flush_tid);
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msg->hdr.tid = cpu_to_le64(arg->flush_tid);
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fc = msg->front.iov_base;
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memset(fc, 0, sizeof(*fc));
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fc->cap_id = cpu_to_le64(cid);
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fc->op = cpu_to_le32(op);
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fc->seq = cpu_to_le32(seq);
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fc->issue_seq = cpu_to_le32(issue_seq);
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fc->migrate_seq = cpu_to_le32(mseq);
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fc->caps = cpu_to_le32(caps);
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fc->wanted = cpu_to_le32(wanted);
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fc->dirty = cpu_to_le32(dirty);
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fc->ino = cpu_to_le64(ino);
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fc->snap_follows = cpu_to_le64(follows);
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fc->cap_id = cpu_to_le64(arg->cid);
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fc->op = cpu_to_le32(arg->op);
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fc->seq = cpu_to_le32(arg->seq);
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fc->issue_seq = cpu_to_le32(arg->issue_seq);
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fc->migrate_seq = cpu_to_le32(arg->mseq);
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fc->caps = cpu_to_le32(arg->caps);
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fc->wanted = cpu_to_le32(arg->wanted);
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fc->dirty = cpu_to_le32(arg->dirty);
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fc->ino = cpu_to_le64(arg->ino);
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fc->snap_follows = cpu_to_le64(arg->follows);
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fc->size = cpu_to_le64(size);
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fc->max_size = cpu_to_le64(max_size);
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if (mtime)
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ceph_encode_timespec(&fc->mtime, mtime);
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if (atime)
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ceph_encode_timespec(&fc->atime, atime);
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if (ctime)
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ceph_encode_timespec(&fc->ctime, ctime);
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fc->time_warp_seq = cpu_to_le32(time_warp_seq);
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fc->size = cpu_to_le64(arg->size);
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fc->max_size = cpu_to_le64(arg->max_size);
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ceph_encode_timespec(&fc->mtime, &arg->mtime);
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ceph_encode_timespec(&fc->atime, &arg->atime);
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ceph_encode_timespec(&fc->ctime, &arg->ctime);
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fc->time_warp_seq = cpu_to_le32(arg->time_warp_seq);
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fc->uid = cpu_to_le32(from_kuid(&init_user_ns, uid));
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fc->gid = cpu_to_le32(from_kgid(&init_user_ns, gid));
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fc->mode = cpu_to_le32(mode);
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fc->uid = cpu_to_le32(from_kuid(&init_user_ns, arg->uid));
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fc->gid = cpu_to_le32(from_kgid(&init_user_ns, arg->gid));
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fc->mode = cpu_to_le32(arg->mode);
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fc->xattr_version = cpu_to_le64(xattr_version);
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if (xattrs_buf) {
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msg->middle = ceph_buffer_get(xattrs_buf);
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fc->xattr_len = cpu_to_le32(xattrs_buf->vec.iov_len);
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msg->hdr.middle_len = cpu_to_le32(xattrs_buf->vec.iov_len);
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fc->xattr_version = cpu_to_le64(arg->xattr_version);
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if (arg->xattr_buf) {
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msg->middle = ceph_buffer_get(arg->xattr_buf);
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fc->xattr_len = cpu_to_le32(arg->xattr_buf->vec.iov_len);
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msg->hdr.middle_len = cpu_to_le32(arg->xattr_buf->vec.iov_len);
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}
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p = fc + 1;
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/* flock buffer size */
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ceph_encode_32(&p, 0);
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/* inline version */
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ceph_encode_64(&p, inline_data ? 0 : CEPH_INLINE_NONE);
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ceph_encode_64(&p, arg->inline_data ? 0 : CEPH_INLINE_NONE);
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/* inline data size */
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ceph_encode_32(&p, 0);
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/* osd_epoch_barrier */
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ceph_encode_32(&p, 0);
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/* oldest_flush_tid */
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ceph_encode_64(&p, oldest_flush_tid);
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ceph_encode_64(&p, arg->oldest_flush_tid);
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ceph_con_send(&session->s_con, msg);
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ceph_con_send(&arg->session->s_con, msg);
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return 0;
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}
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@ -1121,21 +1124,11 @@ static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap,
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{
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struct ceph_inode_info *ci = cap->ci;
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struct inode *inode = &ci->vfs_inode;
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u64 cap_id = cap->cap_id;
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int held, revoking, dropping, keep;
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u64 follows, size, max_size;
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u32 seq, issue_seq, mseq, time_warp_seq;
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struct timespec mtime, atime, ctime;
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struct cap_msg_args arg;
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int held, revoking, dropping;
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int wake = 0;
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umode_t mode;
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kuid_t uid;
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kgid_t gid;
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struct ceph_mds_session *session;
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u64 xattr_version = 0;
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struct ceph_buffer *xattr_blob = NULL;
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int delayed = 0;
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int ret;
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bool inline_data;
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held = cap->issued | cap->implemented;
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revoking = cap->implemented & ~cap->issued;
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@ -1148,7 +1141,7 @@ static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap,
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ceph_cap_string(revoking));
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BUG_ON((retain & CEPH_CAP_PIN) == 0);
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session = cap->session;
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arg.session = cap->session;
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/* don't release wanted unless we've waited a bit. */
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if ((ci->i_ceph_flags & CEPH_I_NODELAY) == 0 &&
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@ -1177,40 +1170,48 @@ static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap,
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cap->implemented &= cap->issued | used;
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cap->mds_wanted = want;
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follows = flushing ? ci->i_head_snapc->seq : 0;
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arg.ino = ceph_vino(inode).ino;
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arg.cid = cap->cap_id;
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arg.follows = flushing ? ci->i_head_snapc->seq : 0;
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arg.flush_tid = flush_tid;
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arg.oldest_flush_tid = oldest_flush_tid;
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keep = cap->implemented;
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seq = cap->seq;
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issue_seq = cap->issue_seq;
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mseq = cap->mseq;
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size = inode->i_size;
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ci->i_reported_size = size;
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max_size = ci->i_wanted_max_size;
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ci->i_requested_max_size = max_size;
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mtime = inode->i_mtime;
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atime = inode->i_atime;
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ctime = inode->i_ctime;
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time_warp_seq = ci->i_time_warp_seq;
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uid = inode->i_uid;
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gid = inode->i_gid;
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mode = inode->i_mode;
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arg.size = inode->i_size;
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ci->i_reported_size = arg.size;
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arg.max_size = ci->i_wanted_max_size;
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ci->i_requested_max_size = arg.max_size;
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if (flushing & CEPH_CAP_XATTR_EXCL) {
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__ceph_build_xattrs_blob(ci);
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xattr_blob = ci->i_xattrs.blob;
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xattr_version = ci->i_xattrs.version;
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arg.xattr_version = ci->i_xattrs.version;
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arg.xattr_buf = ci->i_xattrs.blob;
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} else {
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arg.xattr_buf = NULL;
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}
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inline_data = ci->i_inline_version != CEPH_INLINE_NONE;
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arg.mtime = inode->i_mtime;
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arg.atime = inode->i_atime;
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arg.ctime = inode->i_ctime;
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arg.op = op;
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arg.caps = cap->implemented;
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arg.wanted = want;
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arg.dirty = flushing;
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arg.seq = cap->seq;
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arg.issue_seq = cap->issue_seq;
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arg.mseq = cap->mseq;
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arg.time_warp_seq = ci->i_time_warp_seq;
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arg.uid = inode->i_uid;
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arg.gid = inode->i_gid;
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arg.mode = inode->i_mode;
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arg.inline_data = ci->i_inline_version != CEPH_INLINE_NONE;
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spin_unlock(&ci->i_ceph_lock);
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ret = send_cap_msg(session, ceph_vino(inode).ino, cap_id,
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op, keep, want, flushing, seq,
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flush_tid, oldest_flush_tid, issue_seq, mseq,
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size, max_size, &mtime, &atime, &ctime, time_warp_seq,
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uid, gid, mode, xattr_version, xattr_blob,
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follows, inline_data);
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ret = send_cap_msg(&arg);
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if (ret < 0) {
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dout("error sending cap msg, must requeue %p\n", inode);
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delayed = 1;
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@ -1227,15 +1228,41 @@ static inline int __send_flush_snap(struct inode *inode,
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struct ceph_cap_snap *capsnap,
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u32 mseq, u64 oldest_flush_tid)
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{
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return send_cap_msg(session, ceph_vino(inode).ino, 0,
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CEPH_CAP_OP_FLUSHSNAP, capsnap->issued, 0,
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capsnap->dirty, 0, capsnap->cap_flush.tid,
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oldest_flush_tid, 0, mseq, capsnap->size, 0,
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&capsnap->mtime, &capsnap->atime,
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&capsnap->ctime, capsnap->time_warp_seq,
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capsnap->uid, capsnap->gid, capsnap->mode,
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capsnap->xattr_version, capsnap->xattr_blob,
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capsnap->follows, capsnap->inline_data);
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struct cap_msg_args arg;
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arg.session = session;
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arg.ino = ceph_vino(inode).ino;
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arg.cid = 0;
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arg.follows = capsnap->follows;
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arg.flush_tid = capsnap->cap_flush.tid;
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arg.oldest_flush_tid = oldest_flush_tid;
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arg.size = capsnap->size;
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arg.max_size = 0;
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arg.xattr_version = capsnap->xattr_version;
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arg.xattr_buf = capsnap->xattr_blob;
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arg.atime = capsnap->atime;
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arg.mtime = capsnap->mtime;
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arg.ctime = capsnap->ctime;
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arg.op = CEPH_CAP_OP_FLUSHSNAP;
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arg.caps = capsnap->issued;
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arg.wanted = 0;
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arg.dirty = capsnap->dirty;
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arg.seq = 0;
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arg.issue_seq = 0;
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arg.mseq = mseq;
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arg.time_warp_seq = capsnap->time_warp_seq;
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arg.uid = capsnap->uid;
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arg.gid = capsnap->gid;
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arg.mode = capsnap->mode;
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arg.inline_data = capsnap->inline_data;
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return send_cap_msg(&arg);
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}
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/*
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