18 static int __remove_xattr(struct ceph_inode_info *ci,
36 	ssize_t (*getxattr_cb)(struct ceph_inode_info *ci, char *val,
38 	bool (*exists_cb)(struct ceph_inode_info *ci);
48 static bool ceph_vxattrcb_layout_exists(struct ceph_inode_info *ci)  in ceph_vxattrcb_layout_exists()  argument
50 	struct ceph_file_layout *fl = &ci->i_layout;  in ceph_vxattrcb_layout_exists()
56 static ssize_t ceph_vxattrcb_layout(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_layout()  argument
59 	struct ceph_fs_client *fsc = ceph_sb_to_client(ci->vfs_inode.i_sb);  in ceph_vxattrcb_layout()
62 	s64 pool = ci->i_layout.pool_id;  in ceph_vxattrcb_layout()
69 	pool_ns = ceph_try_get_string(ci->i_layout.pool_ns);  in ceph_vxattrcb_layout()
71 	dout("ceph_vxattrcb_layout %p\n", &ci->vfs_inode);  in ceph_vxattrcb_layout()
77 		ci->i_layout.stripe_unit, ci->i_layout.stripe_count,  in ceph_vxattrcb_layout()
78 	        ci->i_layout.object_size);  in ceph_vxattrcb_layout()
83 		ci->i_layout.stripe_unit, ci->i_layout.stripe_count,  in ceph_vxattrcb_layout()
84 		ci->i_layout.object_size, pool);  in ceph_vxattrcb_layout()
140 static ssize_t ceph_vxattrcb_layout_stripe_unit(struct ceph_inode_info *ci,  in ceph_vxattrcb_layout_stripe_unit()  argument
143 	return ceph_fmt_xattr(val, size, "%u", ci->i_layout.stripe_unit);  in ceph_vxattrcb_layout_stripe_unit()
146 static ssize_t ceph_vxattrcb_layout_stripe_count(struct ceph_inode_info *ci,  in ceph_vxattrcb_layout_stripe_count()  argument
149 	return ceph_fmt_xattr(val, size, "%u", ci->i_layout.stripe_count);  in ceph_vxattrcb_layout_stripe_count()
152 static ssize_t ceph_vxattrcb_layout_object_size(struct ceph_inode_info *ci,  in ceph_vxattrcb_layout_object_size()  argument
155 	return ceph_fmt_xattr(val, size, "%u", ci->i_layout.object_size);  in ceph_vxattrcb_layout_object_size()
158 static ssize_t ceph_vxattrcb_layout_pool(struct ceph_inode_info *ci,  in ceph_vxattrcb_layout_pool()  argument
162 	struct ceph_fs_client *fsc = ceph_sb_to_client(ci->vfs_inode.i_sb);  in ceph_vxattrcb_layout_pool()
164 	s64 pool = ci->i_layout.pool_id;  in ceph_vxattrcb_layout_pool()
180 static ssize_t ceph_vxattrcb_layout_pool_namespace(struct ceph_inode_info *ci,  in ceph_vxattrcb_layout_pool_namespace()  argument
184 	struct ceph_string *ns = ceph_try_get_string(ci->i_layout.pool_ns);  in ceph_vxattrcb_layout_pool_namespace()
197 static ssize_t ceph_vxattrcb_dir_entries(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_entries()  argument
200 	return ceph_fmt_xattr(val, size, "%lld", ci->i_files + ci->i_subdirs);  in ceph_vxattrcb_dir_entries()
203 static ssize_t ceph_vxattrcb_dir_files(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_files()  argument
206 	return ceph_fmt_xattr(val, size, "%lld", ci->i_files);  in ceph_vxattrcb_dir_files()
209 static ssize_t ceph_vxattrcb_dir_subdirs(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_subdirs()  argument
212 	return ceph_fmt_xattr(val, size, "%lld", ci->i_subdirs);  in ceph_vxattrcb_dir_subdirs()
215 static ssize_t ceph_vxattrcb_dir_rentries(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_rentries()  argument
219 				ci->i_rfiles + ci->i_rsubdirs);  in ceph_vxattrcb_dir_rentries()
222 static ssize_t ceph_vxattrcb_dir_rfiles(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_rfiles()  argument
225 	return ceph_fmt_xattr(val, size, "%lld", ci->i_rfiles);  in ceph_vxattrcb_dir_rfiles()
228 static ssize_t ceph_vxattrcb_dir_rsubdirs(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_rsubdirs()  argument
231 	return ceph_fmt_xattr(val, size, "%lld", ci->i_rsubdirs);  in ceph_vxattrcb_dir_rsubdirs()
234 static ssize_t ceph_vxattrcb_dir_rbytes(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_rbytes()  argument
237 	return ceph_fmt_xattr(val, size, "%lld", ci->i_rbytes);  in ceph_vxattrcb_dir_rbytes()
240 static ssize_t ceph_vxattrcb_dir_rctime(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_rctime()  argument
243 	return ceph_fmt_xattr(val, size, "%lld.%09ld", ci->i_rctime.tv_sec,  in ceph_vxattrcb_dir_rctime()
244 				ci->i_rctime.tv_nsec);  in ceph_vxattrcb_dir_rctime()
248 static bool ceph_vxattrcb_dir_pin_exists(struct ceph_inode_info *ci)  in ceph_vxattrcb_dir_pin_exists()  argument
250 	return ci->i_dir_pin != -ENODATA;  in ceph_vxattrcb_dir_pin_exists()
253 static ssize_t ceph_vxattrcb_dir_pin(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_pin()  argument
256 	return ceph_fmt_xattr(val, size, "%d", (int)ci->i_dir_pin);  in ceph_vxattrcb_dir_pin()
260 static bool ceph_vxattrcb_quota_exists(struct ceph_inode_info *ci)  in ceph_vxattrcb_quota_exists()  argument
263 	spin_lock(&ci->i_ceph_lock);  in ceph_vxattrcb_quota_exists()
264 	if ((ci->i_max_files || ci->i_max_bytes) &&  in ceph_vxattrcb_quota_exists()
265 	    ci->i_vino.snap == CEPH_NOSNAP &&  in ceph_vxattrcb_quota_exists()
266 	    ci->i_snap_realm &&  in ceph_vxattrcb_quota_exists()
267 	    ci->i_snap_realm->ino == ci->i_vino.ino)  in ceph_vxattrcb_quota_exists()
269 	spin_unlock(&ci->i_ceph_lock);  in ceph_vxattrcb_quota_exists()
273 static ssize_t ceph_vxattrcb_quota(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_quota()  argument
277 				ci->i_max_bytes, ci->i_max_files);  in ceph_vxattrcb_quota()
280 static ssize_t ceph_vxattrcb_quota_max_bytes(struct ceph_inode_info *ci,  in ceph_vxattrcb_quota_max_bytes()  argument
283 	return ceph_fmt_xattr(val, size, "%llu", ci->i_max_bytes);  in ceph_vxattrcb_quota_max_bytes()
286 static ssize_t ceph_vxattrcb_quota_max_files(struct ceph_inode_info *ci,  in ceph_vxattrcb_quota_max_files()  argument
289 	return ceph_fmt_xattr(val, size, "%llu", ci->i_max_files);  in ceph_vxattrcb_quota_max_files()
293 static bool ceph_vxattrcb_snap_btime_exists(struct ceph_inode_info *ci)  in ceph_vxattrcb_snap_btime_exists()  argument
295 	return (ci->i_snap_btime.tv_sec != 0 || ci->i_snap_btime.tv_nsec != 0);  in ceph_vxattrcb_snap_btime_exists()
298 static ssize_t ceph_vxattrcb_snap_btime(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_snap_btime()  argument
301 	return ceph_fmt_xattr(val, size, "%lld.%09ld", ci->i_snap_btime.tv_sec,  in ceph_vxattrcb_snap_btime()
302 				ci->i_snap_btime.tv_nsec);  in ceph_vxattrcb_snap_btime()
433 static int __set_xattr(struct ceph_inode_info *ci,  in __set_xattr()  argument
445 	p = &ci->i_xattrs.index.rb_node;  in __set_xattr()
480 				__remove_xattr(ci, xattr);  in __set_xattr()
494 		ci->i_xattrs.count++;  in __set_xattr()
495 		dout("__set_xattr count=%d\n", ci->i_xattrs.count);  in __set_xattr()
506 		ci->i_xattrs.names_size -= xattr->name_len;  in __set_xattr()
507 		ci->i_xattrs.vals_size -= xattr->val_len;  in __set_xattr()
509 	ci->i_xattrs.names_size += name_len;  in __set_xattr()
510 	ci->i_xattrs.vals_size += val_len;  in __set_xattr()
522 		rb_insert_color(&xattr->node, &ci->i_xattrs.index);  in __set_xattr()
527 	     ceph_vinop(&ci->vfs_inode), xattr, name_len, name, val_len, val);  in __set_xattr()
532 static struct ceph_inode_xattr *__get_xattr(struct ceph_inode_info *ci,  in __get_xattr()  argument
541 	p = &ci->i_xattrs.index.rb_node;  in __get_xattr()
576 static int __remove_xattr(struct ceph_inode_info *ci,  in __remove_xattr()  argument
582 	rb_erase(&xattr->node, &ci->i_xattrs.index);  in __remove_xattr()
589 	ci->i_xattrs.names_size -= xattr->name_len;  in __remove_xattr()
590 	ci->i_xattrs.vals_size -= xattr->val_len;  in __remove_xattr()
591 	ci->i_xattrs.count--;  in __remove_xattr()
597 static char *__copy_xattr_names(struct ceph_inode_info *ci,  in __copy_xattr_names()  argument
603 	p = rb_first(&ci->i_xattrs.index);  in __copy_xattr_names()
604 	dout("__copy_xattr_names count=%d\n", ci->i_xattrs.count);  in __copy_xattr_names()
612 		     xattr->name_len, ci->i_xattrs.names_size);  in __copy_xattr_names()
621 void __ceph_destroy_xattrs(struct ceph_inode_info *ci)  in __ceph_destroy_xattrs()  argument
626 	p = rb_first(&ci->i_xattrs.index);  in __ceph_destroy_xattrs()
636 		rb_erase(tmp, &ci->i_xattrs.index);  in __ceph_destroy_xattrs()
641 	ci->i_xattrs.names_size = 0;  in __ceph_destroy_xattrs()
642 	ci->i_xattrs.vals_size = 0;  in __ceph_destroy_xattrs()
643 	ci->i_xattrs.index_version = 0;  in __ceph_destroy_xattrs()
644 	ci->i_xattrs.count = 0;  in __ceph_destroy_xattrs()
645 	ci->i_xattrs.index = RB_ROOT;  in __ceph_destroy_xattrs()
649 	__releases(ci->i_ceph_lock)  in __build_xattrs()
650 	__acquires(ci->i_ceph_lock)  in __build_xattrs()
657 	struct ceph_inode_info *ci = ceph_inode(inode);  in __build_xattrs()  local
664 	     ci->i_xattrs.blob ? (int)ci->i_xattrs.blob->vec.iov_len : 0);  in __build_xattrs()
666 	if (ci->i_xattrs.index_version >= ci->i_xattrs.version)  in __build_xattrs()
669 	__ceph_destroy_xattrs(ci);  in __build_xattrs()
673 	if (ci->i_xattrs.blob && ci->i_xattrs.blob->vec.iov_len > 4) {  in __build_xattrs()
674 		p = ci->i_xattrs.blob->vec.iov_base;  in __build_xattrs()
675 		end = p + ci->i_xattrs.blob->vec.iov_len;  in __build_xattrs()
677 		xattr_version = ci->i_xattrs.version;  in __build_xattrs()
678 		spin_unlock(&ci->i_ceph_lock);  in __build_xattrs()
693 		spin_lock(&ci->i_ceph_lock);  in __build_xattrs()
694 		if (ci->i_xattrs.version != xattr_version) {  in __build_xattrs()
712 			err = __set_xattr(ci, name, namelen, val, len,  in __build_xattrs()
720 	ci->i_xattrs.index_version = ci->i_xattrs.version;  in __build_xattrs()
721 	ci->i_xattrs.dirty = false;  in __build_xattrs()
725 	spin_lock(&ci->i_ceph_lock);  in __build_xattrs()
732 	ci->i_xattrs.names_size = 0;  in __build_xattrs()
736 static int __get_required_blob_size(struct ceph_inode_info *ci, int name_size,  in __get_required_blob_size()  argument
743 	int size = 4 + ci->i_xattrs.count*(4 + 4) +  in __get_required_blob_size()
744 			     ci->i_xattrs.names_size +  in __get_required_blob_size()
745 			     ci->i_xattrs.vals_size;  in __get_required_blob_size()
747 	     ci->i_xattrs.count, ci->i_xattrs.names_size,  in __get_required_blob_size()
748 	     ci->i_xattrs.vals_size);  in __get_required_blob_size()
762 struct ceph_buffer *__ceph_build_xattrs_blob(struct ceph_inode_info *ci)  in __ceph_build_xattrs_blob()  argument
769 	dout("__build_xattrs_blob %p\n", &ci->vfs_inode);  in __ceph_build_xattrs_blob()
770 	if (ci->i_xattrs.dirty) {  in __ceph_build_xattrs_blob()
771 		int need = __get_required_blob_size(ci, 0, 0);  in __ceph_build_xattrs_blob()
773 		BUG_ON(need > ci->i_xattrs.prealloc_blob->alloc_len);  in __ceph_build_xattrs_blob()
775 		p = rb_first(&ci->i_xattrs.index);  in __ceph_build_xattrs_blob()
776 		dest = ci->i_xattrs.prealloc_blob->vec.iov_base;  in __ceph_build_xattrs_blob()
778 		ceph_encode_32(&dest, ci->i_xattrs.count);  in __ceph_build_xattrs_blob()
793 		ci->i_xattrs.prealloc_blob->vec.iov_len =  in __ceph_build_xattrs_blob()
794 			dest - ci->i_xattrs.prealloc_blob->vec.iov_base;  in __ceph_build_xattrs_blob()
796 		if (ci->i_xattrs.blob)  in __ceph_build_xattrs_blob()
797 			old_blob = ci->i_xattrs.blob;  in __ceph_build_xattrs_blob()
798 		ci->i_xattrs.blob = ci->i_xattrs.prealloc_blob;  in __ceph_build_xattrs_blob()
799 		ci->i_xattrs.prealloc_blob = NULL;  in __ceph_build_xattrs_blob()
800 		ci->i_xattrs.dirty = false;  in __ceph_build_xattrs_blob()
801 		ci->i_xattrs.version++;  in __ceph_build_xattrs_blob()
827 	struct ceph_inode_info *ci = ceph_inode(inode);  in __ceph_getxattr()  local
843 		if (!(vxattr->exists_cb && !vxattr->exists_cb(ci))) {  in __ceph_getxattr()
844 			err = vxattr->getxattr_cb(ci, value, size);  in __ceph_getxattr()
853 	spin_lock(&ci->i_ceph_lock);  in __ceph_getxattr()
855 	     ci->i_xattrs.version, ci->i_xattrs.index_version);  in __ceph_getxattr()
857 	if (ci->i_xattrs.version == 0 ||  in __ceph_getxattr()
859 	      __ceph_caps_issued_mask(ci, CEPH_CAP_XATTR_SHARED, 1))) {  in __ceph_getxattr()
860 		spin_unlock(&ci->i_ceph_lock);  in __ceph_getxattr()
873 		spin_lock(&ci->i_ceph_lock);  in __ceph_getxattr()
881 	xattr = __get_xattr(ci, name);  in __ceph_getxattr()
898 		ci->i_ceph_flags |= CEPH_I_SEC_INITED;  in __ceph_getxattr()
900 	spin_unlock(&ci->i_ceph_lock);  in __ceph_getxattr()
907 	struct ceph_inode_info *ci = ceph_inode(inode);  in ceph_listxattr()  local
912 	spin_lock(&ci->i_ceph_lock);  in ceph_listxattr()
914 	     ci->i_xattrs.version, ci->i_xattrs.index_version);  in ceph_listxattr()
916 	if (ci->i_xattrs.version == 0 ||  in ceph_listxattr()
917 	    !__ceph_caps_issued_mask(ci, CEPH_CAP_XATTR_SHARED, 1)) {  in ceph_listxattr()
918 		spin_unlock(&ci->i_ceph_lock);  in ceph_listxattr()
922 		spin_lock(&ci->i_ceph_lock);  in ceph_listxattr()
930 	namelen = ci->i_xattrs.names_size + ci->i_xattrs.count;  in ceph_listxattr()
936 		names = __copy_xattr_names(ci, names);  in ceph_listxattr()
941 	spin_unlock(&ci->i_ceph_lock);  in ceph_listxattr()
949 	struct ceph_inode_info *ci = ceph_inode(inode);  in ceph_sync_setxattr()  local
999 	dout("xattr.ver (before): %lld\n", ci->i_xattrs.version);  in ceph_sync_setxattr()
1002 	dout("xattr.ver (after): %lld\n", ci->i_xattrs.version);  in ceph_sync_setxattr()
1014 	struct ceph_inode_info *ci = ceph_inode(inode);  in __ceph_setxattr()  local
1065 	spin_lock(&ci->i_ceph_lock);  in __ceph_setxattr()
1067 	issued = __ceph_caps_issued(ci, NULL);  in __ceph_setxattr()
1068 	if (ci->i_xattrs.version == 0 || !(issued & CEPH_CAP_XATTR_EXCL))  in __ceph_setxattr()
1071 	if (!lock_snap_rwsem && !ci->i_head_snapc) {  in __ceph_setxattr()
1074 			spin_unlock(&ci->i_ceph_lock);  in __ceph_setxattr()
1076 			spin_lock(&ci->i_ceph_lock);  in __ceph_setxattr()
1084 	required_blob_size = __get_required_blob_size(ci, name_len, val_len);  in __ceph_setxattr()
1086 	if (!ci->i_xattrs.prealloc_blob ||  in __ceph_setxattr()
1087 	    required_blob_size > ci->i_xattrs.prealloc_blob->alloc_len) {  in __ceph_setxattr()
1090 		spin_unlock(&ci->i_ceph_lock);  in __ceph_setxattr()
1096 		spin_lock(&ci->i_ceph_lock);  in __ceph_setxattr()
1098 		if (ci->i_xattrs.prealloc_blob)  in __ceph_setxattr()
1099 			old_blob = ci->i_xattrs.prealloc_blob;  in __ceph_setxattr()
1100 		ci->i_xattrs.prealloc_blob = blob;  in __ceph_setxattr()
1104 	err = __set_xattr(ci, newname, name_len, newval, val_len,  in __ceph_setxattr()
1108 		dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL,  in __ceph_setxattr()
1110 		ci->i_xattrs.dirty = true;  in __ceph_setxattr()
1114 	spin_unlock(&ci->i_ceph_lock);  in __ceph_setxattr()
1124 	spin_unlock(&ci->i_ceph_lock);  in __ceph_setxattr()
1138 			spin_lock(&ci->i_ceph_lock);  in __ceph_setxattr()
1139 			if ((ci->i_max_files || ci->i_max_bytes) &&  in __ceph_setxattr()
1140 			    !(ci->i_snap_realm &&  in __ceph_setxattr()
1141 			      ci->i_snap_realm->ino == ci->i_vino.ino))  in __ceph_setxattr()
1143 			spin_unlock(&ci->i_ceph_lock);  in __ceph_setxattr()
1187 	struct ceph_inode_info *ci;  in ceph_security_xattr_deadlock()  local
1191 	ci = ceph_inode(in);  in ceph_security_xattr_deadlock()
1192 	spin_lock(&ci->i_ceph_lock);  in ceph_security_xattr_deadlock()
1193 	ret = !(ci->i_ceph_flags & CEPH_I_SEC_INITED) &&  in ceph_security_xattr_deadlock()
1194 	      !(ci->i_xattrs.version > 0 &&  in ceph_security_xattr_deadlock()
1195 		__ceph_caps_issued_mask(ci, CEPH_CAP_XATTR_SHARED, 0));  in ceph_security_xattr_deadlock()
1196 	spin_unlock(&ci->i_ceph_lock);  in ceph_security_xattr_deadlock()