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a0ec1ded22
linux/fs/orangefs
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Martin Brandenburg a0ec1ded22 orangefs: initialize op on loop restart in orangefs_devreq_read 
In orangefs_devreq_read, there is a loop which picks an op off the list
of pending ops.  If the loop fails to find an op, there is nothing to
read, and it returns EAGAIN.  If the op has been given up on, the loop
is restarted via a goto.  The bug is that the variable which the found
op is written to is not reinitialized, so if there are no more eligible
ops on the list, the code runs again on the already handled op.

This is triggered by interrupting a process while the op is being copied
to the client-core.  It's a fairly small window, but it's there.

Signed-off-by: Martin Brandenburg <martin@omnibond.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-01-22 13:51:14 -08:00
..
acl.c orangefs: stop setting atime on inode dirty 2017-11-13 15:10:11 -05:00
dcache.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
devorangefs-req.c orangefs: initialize op on loop restart in orangefs_devreq_read 2018-01-22 13:51:14 -08:00
dir.c orangefs: stop setting atime on inode dirty 2017-11-13 15:10:11 -05:00
downcall.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
file.c orangefs: stop setting atime on inode dirty 2017-11-13 15:10:11 -05:00
inode.c orangefs: stop setting atime on inode dirty 2017-11-13 15:10:11 -05:00
Kconfig Orangefs: kernel client part 7 2015-10-03 11:40:00 -04:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
namei.c orangefs: call op_release sooner when creating inodes 2017-11-13 15:10:18 -05:00
orangefs-bufmap.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
orangefs-bufmap.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
orangefs-cache.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
orangefs-debug.h orangefs: use ARRAY_SIZE 2017-11-13 15:09:58 -05:00
orangefs-debugfs.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
orangefs-debugfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
orangefs-dev-proto.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
orangefs-kernel.h 3 Cleanups: remove initialization of i_version - Jeff Layton 2017-11-21 05:40:48 -10:00
orangefs-mod.c orangefs: Delete error messages for a failed memory allocation in five functions 2017-09-14 14:58:29 -04:00
orangefs-sysfs.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
orangefs-sysfs.h Orangefs: change pvfs2 filenames to orangefs 2015-12-04 12:56:14 -05:00
orangefs-utils.c orangefs: stop setting atime on inode dirty 2017-11-13 15:10:11 -05:00
protocol.h 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
symlink.c orangefs: stop setting atime on inode dirty 2017-11-13 15:10:11 -05:00
upcall.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
waitqueue.c orangefs: use list_for_each_entry_safe in purge_waiting_ops 2018-01-22 13:51:14 -08:00
xattr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00