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Jeff Layton d6b8bd679c ceph: fix ceph_mdsc_build_path to not stop on first component 
When ceph_mdsc_build_path is handed a positive dentry, it will return a
zero-length path string with the base set to that dentry.  This is not
what we want.  Always include at least one path component in the string.

ceph_mdsc_build_path has behaved this way for a long time but it didn't
matter until recent d_name handling rework.

Fixes: 964fff7491 ("ceph: use ceph_mdsc_build_path instead of clone_dentry_name")
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
 		2019-06-27 18:27:36 +02:00
..
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile ceph: quota: add initial infrastructure to support cephfs quotas 2018-04-02 11:17:51 +02:00
acl.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 173 2019-05-30 11:26:40 -07:00
addr.c ceph: use vmf_error() in ceph_filemap_fault() 2019-01-07 22:48:48 +01:00
cache.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 188 2019-05-30 11:29:21 -07:00
cache.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 188 2019-05-30 11:29:21 -07:00
caps.c ceph: fix error handling in ceph_get_caps() 2019-06-05 20:34:39 +02:00
ceph_frag.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
debugfs.c libceph: make ceph_pr_addr take an struct ceph_entity_addr pointer 2019-05-07 19:43:05 +02:00
dir.c ceph: ensure d_name stability in ceph_dentry_hash() 2019-04-23 21:37:54 +02:00
export.c ceph: snapshot nfs re-export 2019-05-07 19:22:36 +02:00
file.c ceph: single workqueue for inode related works 2019-06-05 20:34:39 +02:00
inode.c ceph: avoid iput_final() while holding mutex or in dispatch thread 2019-06-05 20:34:39 +02:00
ioctl.c libceph, ceph: move ceph_calc_file_object_mapping() to striper.c 2018-04-02 10:12:43 +02:00
ioctl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
locks.c ceph: remove duplicated filelock ref increase 2019-05-07 19:22:36 +02:00
mds_client.c ceph: fix ceph_mdsc_build_path to not stop on first component 2019-06-27 18:27:36 +02:00
mds_client.h ceph: have ceph_mdsc_do_request call ceph_mdsc_submit_request 2019-05-07 19:22:37 +02:00
mdsmap.c libceph: make ceph_pr_addr take an struct ceph_entity_addr pointer 2019-05-07 19:43:05 +02:00
quota.c ceph: avoid iput_final() while holding mutex or in dispatch thread 2019-06-05 20:34:39 +02:00
snap.c ceph: avoid iput_final() while holding mutex or in dispatch thread 2019-06-05 20:34:39 +02:00
strings.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
super.c ceph: single workqueue for inode related works 2019-06-05 20:34:39 +02:00
super.h ceph: avoid iput_final() while holding mutex or in dispatch thread 2019-06-05 20:34:39 +02:00
xattr.c ceph: support getting ceph.dir.pin vxattr 2019-03-05 18:55:16 +01:00