ceph: use getattr request to fetch inline data
Add a new parameter 'locked_page' to ceph_do_getattr(). If inline data in getattr reply will be copied to the page. Signed-off-by: Yan, Zheng <zyan@redhat.com>
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31c542a199
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01deead041
@ -659,7 +659,7 @@ void ceph_fill_file_time(struct inode *inode, int issued,
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* Populate an inode based on info from mds. May be called on new or
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* existing inodes.
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*/
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static int fill_inode(struct inode *inode,
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static int fill_inode(struct inode *inode, struct page *locked_page,
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struct ceph_mds_reply_info_in *iinfo,
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struct ceph_mds_reply_dirfrag *dirinfo,
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struct ceph_mds_session *session,
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@ -883,14 +883,15 @@ static int fill_inode(struct inode *inode,
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int cache_caps = CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO;
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ci->i_inline_version = iinfo->inline_version;
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if (ci->i_inline_version != CEPH_INLINE_NONE &&
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(le32_to_cpu(info->cap.caps) & cache_caps))
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(locked_page ||
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(le32_to_cpu(info->cap.caps) & cache_caps)))
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fill_inline = true;
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}
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spin_unlock(&ci->i_ceph_lock);
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if (fill_inline)
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ceph_fill_inline_data(inode, NULL,
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ceph_fill_inline_data(inode, locked_page,
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iinfo->inline_data, iinfo->inline_len);
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if (wake)
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@ -1080,7 +1081,8 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
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struct inode *dir = req->r_locked_dir;
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if (dir) {
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err = fill_inode(dir, &rinfo->diri, rinfo->dirfrag,
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err = fill_inode(dir, NULL,
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&rinfo->diri, rinfo->dirfrag,
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session, req->r_request_started, -1,
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&req->r_caps_reservation);
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if (err < 0)
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@ -1150,7 +1152,7 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
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}
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req->r_target_inode = in;
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err = fill_inode(in, &rinfo->targeti, NULL,
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err = fill_inode(in, req->r_locked_page, &rinfo->targeti, NULL,
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session, req->r_request_started,
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(!req->r_aborted && rinfo->head->result == 0) ?
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req->r_fmode : -1,
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@ -1321,7 +1323,7 @@ static int readdir_prepopulate_inodes_only(struct ceph_mds_request *req,
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dout("new_inode badness got %d\n", err);
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continue;
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}
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rc = fill_inode(in, &rinfo->dir_in[i], NULL, session,
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rc = fill_inode(in, NULL, &rinfo->dir_in[i], NULL, session,
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req->r_request_started, -1,
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&req->r_caps_reservation);
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if (rc < 0) {
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@ -1437,7 +1439,7 @@ int ceph_readdir_prepopulate(struct ceph_mds_request *req,
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}
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}
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if (fill_inode(in, &rinfo->dir_in[i], NULL, session,
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if (fill_inode(in, NULL, &rinfo->dir_in[i], NULL, session,
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req->r_request_started, -1,
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&req->r_caps_reservation) < 0) {
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pr_err("fill_inode badness on %p\n", in);
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@ -1920,7 +1922,8 @@ int ceph_setattr(struct dentry *dentry, struct iattr *attr)
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* Verify that we have a lease on the given mask. If not,
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* do a getattr against an mds.
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*/
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int ceph_do_getattr(struct inode *inode, int mask, bool force)
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int __ceph_do_getattr(struct inode *inode, struct page *locked_page,
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int mask, bool force)
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{
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struct ceph_fs_client *fsc = ceph_sb_to_client(inode->i_sb);
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struct ceph_mds_client *mdsc = fsc->mdsc;
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@ -1932,7 +1935,8 @@ int ceph_do_getattr(struct inode *inode, int mask, bool force)
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return 0;
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}
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dout("do_getattr inode %p mask %s mode 0%o\n", inode, ceph_cap_string(mask), inode->i_mode);
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dout("do_getattr inode %p mask %s mode 0%o\n",
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inode, ceph_cap_string(mask), inode->i_mode);
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if (!force && ceph_caps_issued_mask(ceph_inode(inode), mask, 1))
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return 0;
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@ -1943,7 +1947,19 @@ int ceph_do_getattr(struct inode *inode, int mask, bool force)
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ihold(inode);
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req->r_num_caps = 1;
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req->r_args.getattr.mask = cpu_to_le32(mask);
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req->r_locked_page = locked_page;
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err = ceph_mdsc_do_request(mdsc, NULL, req);
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if (locked_page && err == 0) {
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u64 inline_version = req->r_reply_info.targeti.inline_version;
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if (inline_version == 0) {
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/* the reply is supposed to contain inline data */
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err = -EINVAL;
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} else if (inline_version == CEPH_INLINE_NONE) {
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err = -ENODATA;
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} else {
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err = req->r_reply_info.targeti.inline_len;
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}
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}
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ceph_mdsc_put_request(req);
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dout("do_getattr result=%d\n", err);
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return err;
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@ -223,6 +223,7 @@ struct ceph_mds_request {
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int r_request_release_offset;
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struct ceph_msg *r_reply;
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struct ceph_mds_reply_info_parsed r_reply_info;
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struct page *r_locked_page;
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int r_err;
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bool r_aborted;
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@ -744,7 +744,12 @@ extern void ceph_queue_vmtruncate(struct inode *inode);
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extern void ceph_queue_invalidate(struct inode *inode);
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extern void ceph_queue_writeback(struct inode *inode);
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extern int ceph_do_getattr(struct inode *inode, int mask, bool force);
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extern int __ceph_do_getattr(struct inode *inode, struct page *locked_page,
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int mask, bool force);
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static inline int ceph_do_getattr(struct inode *inode, int mask, bool force)
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{
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return __ceph_do_getattr(inode, NULL, mask, force);
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}
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extern int ceph_permission(struct inode *inode, int mask);
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extern int ceph_setattr(struct dentry *dentry, struct iattr *attr);
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extern int ceph_getattr(struct vfsmount *mnt, struct dentry *dentry,
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@ -617,6 +617,8 @@ int ceph_flags_to_mode(int flags);
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CEPH_CAP_LINK_SHARED | \
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CEPH_CAP_FILE_SHARED | \
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CEPH_CAP_XATTR_SHARED)
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#define CEPH_STAT_CAP_INLINE_DATA (CEPH_CAP_FILE_SHARED | \
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CEPH_CAP_FILE_RD)
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#define CEPH_CAP_ANY_SHARED (CEPH_CAP_AUTH_SHARED | \
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CEPH_CAP_LINK_SHARED | \
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