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linux-stable/fs/ceph
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Zhi Zhang e30ee58121 ceph: try to allocate enough memory for reserved caps 
ceph_reserve_caps() may not reserve enough caps under high memory
pressure, but it saved the needed caps number that expected to
be reserved. When getting caps, crash would happen due to number
mismatch.

Now we will try to trim more caps when failing to allocate memory
for caps need to be reserved, then try again. If still failing to
allocate memory, return -ENOMEM.

Signed-off-by: Zhi Zhang <zhang.david2011@gmail.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-01-29 18:36:12 +01:00
..
acl.c ceph: unify inode i_ctime update 2017-06-14 19:37:23 +02:00
addr.c ceph: fix un-balanced fsc->writeback_count update 2018-01-29 18:36:09 +01:00
cache.c The highlights include: 2017-09-12 20:03:53 -07:00
cache.h ceph: improve fscache revalidation 2016-06-01 10:31:50 +02:00
caps.c ceph: try to allocate enough memory for reserved caps 2018-01-29 18:36:12 +01:00
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 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dir.c ceph: avoid dereferencing invalid pointer during cached readdir 2018-01-29 18:36:07 +01:00
export.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
file.c ceph: track read contexts in ceph_file_info 2018-01-29 18:36:08 +01:00
inode.c ceph: avoid dereferencing invalid pointer during cached readdir 2018-01-29 18:36:07 +01:00
ioctl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ioctl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig ceph: add acl for cephfs 2013-12-31 20:32:01 +02:00
locks.c ceph: handle 'session get evicted while there are file locks' 2017-11-13 12:11:28 +01:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mds_client.c ceph: try to allocate enough memory for reserved caps 2018-01-29 18:36:12 +01:00
mds_client.h ceph: try to allocate enough memory for reserved caps 2018-01-29 18:36:12 +01:00
mdsmap.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
snap.c ceph: fix incorrect snaprealm when adding caps 2018-01-29 18:36:09 +01:00
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 Rename superblock flags (MS_xyz -> SB_xyz) 2017-11-27 13:05:09 -08:00
super.h ceph: try to allocate enough memory for reserved caps 2018-01-29 18:36:12 +01:00
xattr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00