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authorSage Weil <sage@inktank.com>2013-01-31 11:53:27 -0800
committerSage Weil <sage@inktank.com>2013-02-13 18:25:47 -0800
commit8860147a01c4243f64f7d602dbf8342ca616ed45 (patch)
treecdc3b501c724afd1ce3708cdf268cf99171d53e5 /fs/ceph
parent39b648d9ec7d4ab0b4362872c6284a12c582afa6 (diff)
downloadlinux-stericsson-8860147a01c4243f64f7d602dbf8342ca616ed45.tar.gz
ceph: support hidden vxattrs
Add ability to flag virtual xattrs as hidden, such that you can getxattr them but they do not appear in listxattr. Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Sam Lang <sam.lang@inktank.com>
Diffstat (limited to 'fs/ceph')
-rw-r--r--fs/ceph/xattr.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index c2048b1a5395..43063d0dee8f 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -29,7 +29,7 @@ struct ceph_vxattr {
size_t name_size; /* strlen(name) + 1 (for '\0') */
size_t (*getxattr_cb)(struct ceph_inode_info *ci, char *val,
size_t size);
- bool readonly;
+ bool readonly, hidden;
};
/* directories */
@@ -85,13 +85,14 @@ static size_t ceph_vxattrcb_dir_rctime(struct ceph_inode_info *ci, char *val,
#define CEPH_XATTR_NAME(_type, _name) XATTR_CEPH_PREFIX #_type "." #_name
-#define XATTR_NAME_CEPH(_type, _name) \
- { \
- .name = CEPH_XATTR_NAME(_type, _name), \
- .name_size = sizeof (CEPH_XATTR_NAME(_type, _name)), \
- .getxattr_cb = ceph_vxattrcb_ ## _type ## _ ## _name, \
- .readonly = true, \
- }
+#define XATTR_NAME_CEPH(_type, _name) \
+ { \
+ .name = CEPH_XATTR_NAME(_type, _name), \
+ .name_size = sizeof (CEPH_XATTR_NAME(_type, _name)), \
+ .getxattr_cb = ceph_vxattrcb_ ## _type ## _ ## _name, \
+ .readonly = true, \
+ .hidden = false, \
+ }
static struct ceph_vxattr ceph_dir_vxattrs[] = {
XATTR_NAME_CEPH(dir, entries),
@@ -157,7 +158,8 @@ static size_t __init vxattrs_name_size(struct ceph_vxattr *vxattrs)
size_t size = 0;
for (vxattr = vxattrs; vxattr->name; vxattr++)
- size += vxattr->name_size;
+ if (!vxattr->hidden)
+ size += vxattr->name_size;
return size;
}