From eb78808446aeed8e25b080c66bf823c1f188236d Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Mon, 23 Jan 2012 15:49:28 -0600 Subject: ceph: use macros to normalize vxattr table definitions Entries in the ceph virtual extended attribute tables all follow a distinct pattern in their definition. Enforce this pattern through the use of a macro. Also, a null name field signals the end of the table, so make that be the first field in the ceph_vxattr_cb structure. Signed-off-by: Alex Elder Signed-off-by: Sage Weil --- fs/ceph/xattr.c | 39 ++++++++++++++++++++++++++------------- 1 file changed, 26 insertions(+), 13 deletions(-) (limited to 'fs/ceph/xattr.c') diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c index 05bb56f402a4..38aef476f786 100644 --- a/fs/ceph/xattr.c +++ b/fs/ceph/xattr.c @@ -25,10 +25,10 @@ static bool ceph_is_valid_xattr(const char *name) * statistics and layout metadata. */ struct ceph_vxattr_cb { - bool readonly; char *name; size_t (*getxattr_cb)(struct ceph_inode_info *ci, char *val, size_t size); + bool readonly; }; /* directories */ @@ -82,16 +82,25 @@ static size_t ceph_vxattrcb_rctime(struct ceph_inode_info *ci, char *val, (long)ci->i_rctime.tv_nsec); } +#define CEPH_XATTR_NAME(_type, _name) XATTR_CEPH_PREFIX #_type "." #_name + +#define XATTR_NAME_CEPH(_type, _name) \ + { \ + .name = CEPH_XATTR_NAME(_type, _name), \ + .getxattr_cb = ceph_vxattrcb_ ## _name, \ + .readonly = true, \ + } + static struct ceph_vxattr_cb ceph_dir_vxattrs[] = { - { true, XATTR_CEPH_PREFIX "dir.entries", ceph_vxattrcb_entries}, - { true, XATTR_CEPH_PREFIX "dir.files", ceph_vxattrcb_files}, - { true, XATTR_CEPH_PREFIX "dir.subdirs", ceph_vxattrcb_subdirs}, - { true, XATTR_CEPH_PREFIX "dir.rentries", ceph_vxattrcb_rentries}, - { true, XATTR_CEPH_PREFIX "dir.rfiles", ceph_vxattrcb_rfiles}, - { true, XATTR_CEPH_PREFIX "dir.rsubdirs", ceph_vxattrcb_rsubdirs}, - { true, XATTR_CEPH_PREFIX "dir.rbytes", ceph_vxattrcb_rbytes}, - { true, XATTR_CEPH_PREFIX "dir.rctime", ceph_vxattrcb_rctime}, - { true, NULL, NULL } + XATTR_NAME_CEPH(dir, entries), + XATTR_NAME_CEPH(dir, files), + XATTR_NAME_CEPH(dir, subdirs), + XATTR_NAME_CEPH(dir, rentries), + XATTR_NAME_CEPH(dir, rfiles), + XATTR_NAME_CEPH(dir, rsubdirs), + XATTR_NAME_CEPH(dir, rbytes), + XATTR_NAME_CEPH(dir, rctime), + { 0 } /* Required table terminator */ }; /* files */ @@ -114,10 +123,14 @@ static size_t ceph_vxattrcb_layout(struct ceph_inode_info *ci, char *val, } static struct ceph_vxattr_cb ceph_file_vxattrs[] = { - { true, XATTR_CEPH_PREFIX "file.layout", ceph_vxattrcb_layout}, + XATTR_NAME_CEPH(file, layout), /* The following extended attribute name is deprecated */ - { true, XATTR_CEPH_PREFIX "layout", ceph_vxattrcb_layout}, - { true, NULL, NULL } + { + .name = XATTR_CEPH_PREFIX "layout", + .getxattr_cb = ceph_vxattrcb_layout, + .readonly = true, + }, + { 0 } /* Required table terminator */ }; static struct ceph_vxattr_cb *ceph_inode_vxattrs(struct inode *inode) -- cgit v1.2.1