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()
141 static ssize_t ceph_vxattrcb_layout_stripe_unit(struct ceph_inode_info *ci,  in ceph_vxattrcb_layout_stripe_unit()  argument
144 	return ceph_fmt_xattr(val, size, "%u", ci->i_layout.stripe_unit);  in ceph_vxattrcb_layout_stripe_unit()
147 static ssize_t ceph_vxattrcb_layout_stripe_count(struct ceph_inode_info *ci,  in ceph_vxattrcb_layout_stripe_count()  argument
150 	return ceph_fmt_xattr(val, size, "%u", ci->i_layout.stripe_count);  in ceph_vxattrcb_layout_stripe_count()
153 static ssize_t ceph_vxattrcb_layout_object_size(struct ceph_inode_info *ci,  in ceph_vxattrcb_layout_object_size()  argument
156 	return ceph_fmt_xattr(val, size, "%u", ci->i_layout.object_size);  in ceph_vxattrcb_layout_object_size()
159 static ssize_t ceph_vxattrcb_layout_pool(struct ceph_inode_info *ci,  in ceph_vxattrcb_layout_pool()  argument
163 	struct ceph_fs_client *fsc = ceph_sb_to_client(ci->vfs_inode.i_sb);  in ceph_vxattrcb_layout_pool()
165 	s64 pool = ci->i_layout.pool_id;  in ceph_vxattrcb_layout_pool()
181 static ssize_t ceph_vxattrcb_layout_pool_namespace(struct ceph_inode_info *ci,  in ceph_vxattrcb_layout_pool_namespace()  argument
185 	struct ceph_string *ns = ceph_try_get_string(ci->i_layout.pool_ns);  in ceph_vxattrcb_layout_pool_namespace()
198 static ssize_t ceph_vxattrcb_dir_entries(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_entries()  argument
201 	return ceph_fmt_xattr(val, size, "%lld", ci->i_files + ci->i_subdirs);  in ceph_vxattrcb_dir_entries()
204 static ssize_t ceph_vxattrcb_dir_files(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_files()  argument
207 	return ceph_fmt_xattr(val, size, "%lld", ci->i_files);  in ceph_vxattrcb_dir_files()
210 static ssize_t ceph_vxattrcb_dir_subdirs(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_subdirs()  argument
213 	return ceph_fmt_xattr(val, size, "%lld", ci->i_subdirs);  in ceph_vxattrcb_dir_subdirs()
216 static ssize_t ceph_vxattrcb_dir_rentries(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_rentries()  argument
220 				ci->i_rfiles + ci->i_rsubdirs);  in ceph_vxattrcb_dir_rentries()
223 static ssize_t ceph_vxattrcb_dir_rfiles(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_rfiles()  argument
226 	return ceph_fmt_xattr(val, size, "%lld", ci->i_rfiles);  in ceph_vxattrcb_dir_rfiles()
229 static ssize_t ceph_vxattrcb_dir_rsubdirs(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_rsubdirs()  argument
232 	return ceph_fmt_xattr(val, size, "%lld", ci->i_rsubdirs);  in ceph_vxattrcb_dir_rsubdirs()
235 static ssize_t ceph_vxattrcb_dir_rbytes(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_rbytes()  argument
238 	return ceph_fmt_xattr(val, size, "%lld", ci->i_rbytes);  in ceph_vxattrcb_dir_rbytes()
241 static ssize_t ceph_vxattrcb_dir_rctime(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_rctime()  argument
244 	return ceph_fmt_xattr(val, size, "%lld.%09ld", ci->i_rctime.tv_sec,  in ceph_vxattrcb_dir_rctime()
245 				ci->i_rctime.tv_nsec);  in ceph_vxattrcb_dir_rctime()
249 static bool ceph_vxattrcb_dir_pin_exists(struct ceph_inode_info *ci)  in ceph_vxattrcb_dir_pin_exists()  argument
251 	return ci->i_dir_pin != -ENODATA;  in ceph_vxattrcb_dir_pin_exists()
254 static ssize_t ceph_vxattrcb_dir_pin(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_dir_pin()  argument
257 	return ceph_fmt_xattr(val, size, "%d", (int)ci->i_dir_pin);  in ceph_vxattrcb_dir_pin()
261 static bool ceph_vxattrcb_quota_exists(struct ceph_inode_info *ci)  in ceph_vxattrcb_quota_exists()  argument
264 	spin_lock(&ci->i_ceph_lock);  in ceph_vxattrcb_quota_exists()
265 	if ((ci->i_max_files || ci->i_max_bytes) &&  in ceph_vxattrcb_quota_exists()
266 	    ci->i_vino.snap == CEPH_NOSNAP &&  in ceph_vxattrcb_quota_exists()
267 	    ci->i_snap_realm &&  in ceph_vxattrcb_quota_exists()
268 	    ci->i_snap_realm->ino == ci->i_vino.ino)  in ceph_vxattrcb_quota_exists()
270 	spin_unlock(&ci->i_ceph_lock);  in ceph_vxattrcb_quota_exists()
274 static ssize_t ceph_vxattrcb_quota(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_quota()  argument
278 				ci->i_max_bytes, ci->i_max_files);  in ceph_vxattrcb_quota()
281 static ssize_t ceph_vxattrcb_quota_max_bytes(struct ceph_inode_info *ci,  in ceph_vxattrcb_quota_max_bytes()  argument
284 	return ceph_fmt_xattr(val, size, "%llu", ci->i_max_bytes);  in ceph_vxattrcb_quota_max_bytes()
287 static ssize_t ceph_vxattrcb_quota_max_files(struct ceph_inode_info *ci,  in ceph_vxattrcb_quota_max_files()  argument
290 	return ceph_fmt_xattr(val, size, "%llu", ci->i_max_files);  in ceph_vxattrcb_quota_max_files()
294 static bool ceph_vxattrcb_snap_btime_exists(struct ceph_inode_info *ci)  in ceph_vxattrcb_snap_btime_exists()  argument
296 	return (ci->i_snap_btime.tv_sec != 0 || ci->i_snap_btime.tv_nsec != 0);  in ceph_vxattrcb_snap_btime_exists()
299 static ssize_t ceph_vxattrcb_snap_btime(struct ceph_inode_info *ci, char *val,  in ceph_vxattrcb_snap_btime()  argument
302 	return ceph_fmt_xattr(val, size, "%lld.%09ld", ci->i_snap_btime.tv_sec,  in ceph_vxattrcb_snap_btime()
303 				ci->i_snap_btime.tv_nsec);  in ceph_vxattrcb_snap_btime()
434 static int __set_xattr(struct ceph_inode_info *ci,  in __set_xattr()  argument
446 	p = &ci->i_xattrs.index.rb_node;  in __set_xattr()
481 				__remove_xattr(ci, xattr);  in __set_xattr()
495 		ci->i_xattrs.count++;  in __set_xattr()
496 		dout("__set_xattr count=%d\n", ci->i_xattrs.count);  in __set_xattr()
507 		ci->i_xattrs.names_size -= xattr->name_len;  in __set_xattr()
508 		ci->i_xattrs.vals_size -= xattr->val_len;  in __set_xattr()
510 	ci->i_xattrs.names_size += name_len;  in __set_xattr()
511 	ci->i_xattrs.vals_size += val_len;  in __set_xattr()
523 		rb_insert_color(&xattr->node, &ci->i_xattrs.index);  in __set_xattr()
528 	     ceph_vinop(&ci->vfs_inode), xattr, name_len, name, val_len, val);  in __set_xattr()
533 static struct ceph_inode_xattr *__get_xattr(struct ceph_inode_info *ci,  in __get_xattr()  argument
542 	p = &ci->i_xattrs.index.rb_node;  in __get_xattr()
577 static int __remove_xattr(struct ceph_inode_info *ci,  in __remove_xattr()  argument
583 	rb_erase(&xattr->node, &ci->i_xattrs.index);  in __remove_xattr()
590 	ci->i_xattrs.names_size -= xattr->name_len;  in __remove_xattr()
591 	ci->i_xattrs.vals_size -= xattr->val_len;  in __remove_xattr()
592 	ci->i_xattrs.count--;  in __remove_xattr()
598 static char *__copy_xattr_names(struct ceph_inode_info *ci,  in __copy_xattr_names()  argument
604 	p = rb_first(&ci->i_xattrs.index);  in __copy_xattr_names()
605 	dout("__copy_xattr_names count=%d\n", ci->i_xattrs.count);  in __copy_xattr_names()
613 		     xattr->name_len, ci->i_xattrs.names_size);  in __copy_xattr_names()
622 void __ceph_destroy_xattrs(struct ceph_inode_info *ci)  in __ceph_destroy_xattrs()  argument
627 	p = rb_first(&ci->i_xattrs.index);  in __ceph_destroy_xattrs()
637 		rb_erase(tmp, &ci->i_xattrs.index);  in __ceph_destroy_xattrs()
642 	ci->i_xattrs.names_size = 0;  in __ceph_destroy_xattrs()
643 	ci->i_xattrs.vals_size = 0;  in __ceph_destroy_xattrs()
644 	ci->i_xattrs.index_version = 0;  in __ceph_destroy_xattrs()
645 	ci->i_xattrs.count = 0;  in __ceph_destroy_xattrs()
646 	ci->i_xattrs.index = RB_ROOT;  in __ceph_destroy_xattrs()
650 	__releases(ci->i_ceph_lock)  in __build_xattrs()
651 	__acquires(ci->i_ceph_lock)  in __build_xattrs()
658 	struct ceph_inode_info *ci = ceph_inode(inode);  in __build_xattrs()  local
665 	     ci->i_xattrs.blob ? (int)ci->i_xattrs.blob->vec.iov_len : 0);  in __build_xattrs()
667 	if (ci->i_xattrs.index_version >= ci->i_xattrs.version)  in __build_xattrs()
670 	__ceph_destroy_xattrs(ci);  in __build_xattrs()
674 	if (ci->i_xattrs.blob && ci->i_xattrs.blob->vec.iov_len > 4) {  in __build_xattrs()
675 		p = ci->i_xattrs.blob->vec.iov_base;  in __build_xattrs()
676 		end = p + ci->i_xattrs.blob->vec.iov_len;  in __build_xattrs()
678 		xattr_version = ci->i_xattrs.version;  in __build_xattrs()
679 		spin_unlock(&ci->i_ceph_lock);  in __build_xattrs()
694 		spin_lock(&ci->i_ceph_lock);  in __build_xattrs()
695 		if (ci->i_xattrs.version != xattr_version) {  in __build_xattrs()
713 			err = __set_xattr(ci, name, namelen, val, len,  in __build_xattrs()
721 	ci->i_xattrs.index_version = ci->i_xattrs.version;  in __build_xattrs()
722 	ci->i_xattrs.dirty = false;  in __build_xattrs()
726 	spin_lock(&ci->i_ceph_lock);  in __build_xattrs()
733 	ci->i_xattrs.names_size = 0;  in __build_xattrs()
737 static int __get_required_blob_size(struct ceph_inode_info *ci, int name_size,  in __get_required_blob_size()  argument
744 	int size = 4 + ci->i_xattrs.count*(4 + 4) +  in __get_required_blob_size()
745 			     ci->i_xattrs.names_size +  in __get_required_blob_size()
746 			     ci->i_xattrs.vals_size;  in __get_required_blob_size()
748 	     ci->i_xattrs.count, ci->i_xattrs.names_size,  in __get_required_blob_size()
749 	     ci->i_xattrs.vals_size);  in __get_required_blob_size()
763 struct ceph_buffer *__ceph_build_xattrs_blob(struct ceph_inode_info *ci)  in __ceph_build_xattrs_blob()  argument
770 	dout("__build_xattrs_blob %p\n", &ci->vfs_inode);  in __ceph_build_xattrs_blob()
771 	if (ci->i_xattrs.dirty) {  in __ceph_build_xattrs_blob()
772 		int need = __get_required_blob_size(ci, 0, 0);  in __ceph_build_xattrs_blob()
774 		BUG_ON(need > ci->i_xattrs.prealloc_blob->alloc_len);  in __ceph_build_xattrs_blob()
776 		p = rb_first(&ci->i_xattrs.index);  in __ceph_build_xattrs_blob()
777 		dest = ci->i_xattrs.prealloc_blob->vec.iov_base;  in __ceph_build_xattrs_blob()
779 		ceph_encode_32(&dest, ci->i_xattrs.count);  in __ceph_build_xattrs_blob()
794 		ci->i_xattrs.prealloc_blob->vec.iov_len =  in __ceph_build_xattrs_blob()
795 			dest - ci->i_xattrs.prealloc_blob->vec.iov_base;  in __ceph_build_xattrs_blob()
797 		if (ci->i_xattrs.blob)  in __ceph_build_xattrs_blob()
798 			old_blob = ci->i_xattrs.blob;  in __ceph_build_xattrs_blob()
799 		ci->i_xattrs.blob = ci->i_xattrs.prealloc_blob;  in __ceph_build_xattrs_blob()
800 		ci->i_xattrs.prealloc_blob = NULL;  in __ceph_build_xattrs_blob()
801 		ci->i_xattrs.dirty = false;  in __ceph_build_xattrs_blob()
802 		ci->i_xattrs.version++;  in __ceph_build_xattrs_blob()
828 	struct ceph_inode_info *ci = ceph_inode(inode);  in __ceph_getxattr()  local
844 		if (!(vxattr->exists_cb && !vxattr->exists_cb(ci))) {  in __ceph_getxattr()
845 			err = vxattr->getxattr_cb(ci, value, size);  in __ceph_getxattr()
854 	spin_lock(&ci->i_ceph_lock);  in __ceph_getxattr()
856 	     ci->i_xattrs.version, ci->i_xattrs.index_version);  in __ceph_getxattr()
858 	if (ci->i_xattrs.version == 0 ||  in __ceph_getxattr()
860 	      __ceph_caps_issued_mask_metric(ci, CEPH_CAP_XATTR_SHARED, 1))) {  in __ceph_getxattr()
861 		spin_unlock(&ci->i_ceph_lock);  in __ceph_getxattr()
874 		spin_lock(&ci->i_ceph_lock);  in __ceph_getxattr()
882 	xattr = __get_xattr(ci, name);  in __ceph_getxattr()
899 		ci->i_ceph_flags |= CEPH_I_SEC_INITED;  in __ceph_getxattr()
901 	spin_unlock(&ci->i_ceph_lock);  in __ceph_getxattr()
908 	struct ceph_inode_info *ci = ceph_inode(inode);  in ceph_listxattr()  local
913 	spin_lock(&ci->i_ceph_lock);  in ceph_listxattr()
915 	     ci->i_xattrs.version, ci->i_xattrs.index_version);  in ceph_listxattr()
917 	if (ci->i_xattrs.version == 0 ||  in ceph_listxattr()
918 	    !__ceph_caps_issued_mask_metric(ci, CEPH_CAP_XATTR_SHARED, 1)) {  in ceph_listxattr()
919 		spin_unlock(&ci->i_ceph_lock);  in ceph_listxattr()
923 		spin_lock(&ci->i_ceph_lock);  in ceph_listxattr()
931 	namelen = ci->i_xattrs.names_size + ci->i_xattrs.count;  in ceph_listxattr()
937 		names = __copy_xattr_names(ci, names);  in ceph_listxattr()
942 	spin_unlock(&ci->i_ceph_lock);  in ceph_listxattr()
950 	struct ceph_inode_info *ci = ceph_inode(inode);  in ceph_sync_setxattr()  local
1000 	dout("xattr.ver (before): %lld\n", ci->i_xattrs.version);  in ceph_sync_setxattr()
1003 	dout("xattr.ver (after): %lld\n", ci->i_xattrs.version);  in ceph_sync_setxattr()
1015 	struct ceph_inode_info *ci = ceph_inode(inode);  in __ceph_setxattr()  local
1066 	spin_lock(&ci->i_ceph_lock);  in __ceph_setxattr()
1068 	issued = __ceph_caps_issued(ci, NULL);  in __ceph_setxattr()
1069 	if (ci->i_xattrs.version == 0 || !(issued & CEPH_CAP_XATTR_EXCL))  in __ceph_setxattr()
1072 	if (!lock_snap_rwsem && !ci->i_head_snapc) {  in __ceph_setxattr()
1075 			spin_unlock(&ci->i_ceph_lock);  in __ceph_setxattr()
1077 			spin_lock(&ci->i_ceph_lock);  in __ceph_setxattr()
1086 	required_blob_size = __get_required_blob_size(ci, name_len, val_len);  in __ceph_setxattr()
1088 	if (!ci->i_xattrs.prealloc_blob ||  in __ceph_setxattr()
1089 	    required_blob_size > ci->i_xattrs.prealloc_blob->alloc_len) {  in __ceph_setxattr()
1092 		spin_unlock(&ci->i_ceph_lock);  in __ceph_setxattr()
1098 		spin_lock(&ci->i_ceph_lock);  in __ceph_setxattr()
1100 		if (ci->i_xattrs.prealloc_blob)  in __ceph_setxattr()
1101 			old_blob = ci->i_xattrs.prealloc_blob;  in __ceph_setxattr()
1102 		ci->i_xattrs.prealloc_blob = blob;  in __ceph_setxattr()
1106 	err = __set_xattr(ci, newname, name_len, newval, val_len,  in __ceph_setxattr()
1110 		dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL,  in __ceph_setxattr()
1112 		ci->i_xattrs.dirty = true;  in __ceph_setxattr()
1116 	spin_unlock(&ci->i_ceph_lock);  in __ceph_setxattr()
1126 	spin_unlock(&ci->i_ceph_lock);  in __ceph_setxattr()
1140 			spin_lock(&ci->i_ceph_lock);  in __ceph_setxattr()
1141 			if ((ci->i_max_files || ci->i_max_bytes) &&  in __ceph_setxattr()
1142 			    !(ci->i_snap_realm &&  in __ceph_setxattr()
1143 			      ci->i_snap_realm->ino == ci->i_vino.ino))  in __ceph_setxattr()
1145 			spin_unlock(&ci->i_ceph_lock);  in __ceph_setxattr()
1189 	struct ceph_inode_info *ci;  in ceph_security_xattr_deadlock()  local
1193 	ci = ceph_inode(in);  in ceph_security_xattr_deadlock()
1194 	spin_lock(&ci->i_ceph_lock);  in ceph_security_xattr_deadlock()
1195 	ret = !(ci->i_ceph_flags & CEPH_I_SEC_INITED) &&  in ceph_security_xattr_deadlock()
1196 	      !(ci->i_xattrs.version > 0 &&  in ceph_security_xattr_deadlock()
1197 		__ceph_caps_issued_mask(ci, CEPH_CAP_XATTR_SHARED, 0));  in ceph_security_xattr_deadlock()
1198 	spin_unlock(&ci->i_ceph_lock);  in ceph_security_xattr_deadlock()