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authorLuis Henriques <lhenriques@suse.com>2018-05-21 12:27:29 +0300
committerIlya Dryomov <idryomov@gmail.com>2018-06-04 21:45:56 +0300
commit8c6286f1c69743ebdb2ee15f9165f9c4d44eef49 (patch)
tree12d125d8946dbdbb57ad41847d397ebe00d0a0c6 /fs/ceph/inode.c
parent597817ddbbf27af5986d1f3df20390b2738411c6 (diff)
downloadlinux-8c6286f1c69743ebdb2ee15f9165f9c4d44eef49.tar.xz
ceph: fix st_nlink stat for directories
Currently, calling stat on a cephfs directory returns 1 for st_nlink. This behaviour has recently changed in the fuse client, as some applications seem to expect this value to be either 0 (if it's unlinked) or 2 + number of subdirectories. This behaviour was changed in the fuse client with commit 67c7e4619188 ("client: use common interp of st_nlink for dirs"). This patch modifies the kernel client to have a similar behaviour. Link: https://tracker.ceph.com/issues/23873 Signed-off-by: Luis Henriques <lhenriques@suse.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/inode.c')
-rw-r--r--fs/ceph/inode.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 4712c943cdf7..4aeccb13437b 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -2271,6 +2271,14 @@ int ceph_getattr(const struct path *path, struct kstat *stat,
stat->size = ci->i_files + ci->i_subdirs;
stat->blocks = 0;
stat->blksize = 65536;
+ /*
+ * Some applications rely on the number of st_nlink
+ * value on directories to be either 0 (if unlinked)
+ * or 2 + number of subdirectories.
+ */
+ if (stat->nlink == 1)
+ /* '.' + '..' + subdirs */
+ stat->nlink = 1 + 1 + ci->i_subdirs;
}
}
return err;