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ceph: support hidden vxattrs

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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>
This commit is contained in:
Sage Weil 2013-01-31 11:53:27 -08:00
parent 39b648d9ec
commit 8860147a01
1 changed files with 11 additions and 9 deletions
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4
fs/ceph/xattr.c
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@ -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 */
@ -91,6 +91,7 @@ static size_t ceph_vxattrcb_dir_rctime(struct ceph_inode_info *ci, char *val,
.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[] = {
@ -157,6 +158,7 @@ static size_t __init vxattrs_name_size(struct ceph_vxattr *vxattrs)
size_t size = 0;
for (vxattr = vxattrs; vxattr->name; vxattr++)
if (!vxattr->hidden)
size += vxattr->name_size;
return size;