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authorJeff Layton <jlayton@kernel.org>2019-06-05 12:08:32 -0400
committerIlya Dryomov <idryomov@gmail.com>2019-07-08 14:01:43 +0200
commit58981784a6926e14964bb0e41dca38d75976b946 (patch)
tree2301057475f2de59825de9ef1b53c560ca92b401 /fs/ceph
parent6adaaafdd81d5c01875fe233ab73deb81b34caa1 (diff)
ceph: allow querying of STATX_BTIME in ceph_getattr
Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph')
-rw-r--r--fs/ceph/inode.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 909f13d4d664..a13b627270f3 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -2298,7 +2298,7 @@ static int statx_to_caps(u32 want)
{
int mask = 0;
- if (want & (STATX_MODE|STATX_UID|STATX_GID|STATX_CTIME))
+ if (want & (STATX_MODE|STATX_UID|STATX_GID|STATX_CTIME|STATX_BTIME))
mask |= CEPH_CAP_AUTH_SHARED;
if (want & (STATX_NLINK|STATX_CTIME))
@@ -2323,6 +2323,7 @@ int ceph_getattr(const struct path *path, struct kstat *stat,
{
struct inode *inode = d_inode(path->dentry);
struct ceph_inode_info *ci = ceph_inode(inode);
+ u32 valid_mask = STATX_BASIC_STATS;
int err = 0;
/* Skip the getattr altogether if we're asked not to sync */
@@ -2335,6 +2336,16 @@ int ceph_getattr(const struct path *path, struct kstat *stat,
generic_fillattr(inode, stat);
stat->ino = ceph_translate_ino(inode->i_sb, inode->i_ino);
+
+ /*
+ * btime on newly-allocated inodes is 0, so if this is still set to
+ * that, then assume that it's not valid.
+ */
+ if (ci->i_btime.tv_sec || ci->i_btime.tv_nsec) {
+ stat->btime = ci->i_btime;
+ valid_mask |= STATX_BTIME;
+ }
+
if (ceph_snap(inode) == CEPH_NOSNAP)
stat->dev = inode->i_sb->s_dev;
else
@@ -2358,7 +2369,6 @@ int ceph_getattr(const struct path *path, struct kstat *stat,
stat->nlink = 1 + 1 + ci->i_subdirs;
}
- /* Mask off any higher bits (e.g. btime) until we have support */
- stat->result_mask = request_mask & STATX_BASIC_STATS;
+ stat->result_mask = request_mask & valid_mask;
return err;
}