linux_dsm_epyc7002/fs/ocfs2/cluster
Wengang Wang 5040f8df56 ocfs2: free up write context when direct IO failed
The write context should also be freed even when direct IO failed.
Otherwise a memory leak is introduced and entries remain in
oi->ip_unwritten_list causing the following BUG later in unlink path:

  ERROR: bug expression: !list_empty(&oi->ip_unwritten_list)
  ERROR: Clear inode of 215043, inode has unwritten extents
  ...
  Call Trace:
  ? __set_current_blocked+0x42/0x68
  ocfs2_evict_inode+0x91/0x6a0 [ocfs2]
  ? bit_waitqueue+0x40/0x33
  evict+0xdb/0x1af
  iput+0x1a2/0x1f7
  do_unlinkat+0x194/0x28f
  SyS_unlinkat+0x1b/0x2f
  do_syscall_64+0x79/0x1ae
  entry_SYSCALL_64_after_hwframe+0x151/0x0

This patch also logs, with frequency limit, direct IO failures.

Link: http://lkml.kernel.org/r/20181102170632.25921-1-wen.gang.wang@oracle.com
Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com>
Reviewed-by: Changwei Ge <ge.changwei@h3c.com>
Reviewed-by: Joseph Qi <jiangqi903@gmail.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-11-18 10:15:09 -08:00
..
heartbeat.c ocfs2: make several functions and variables static (and some const) 2018-08-17 16:20:28 -07:00
heartbeat.h ocfs2: cleanup unused func declaration and assignment 2017-11-15 18:21:01 -08:00
Makefile
masklog.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
masklog.h ocfs2: free up write context when direct IO failed 2018-11-18 10:15:09 -08:00
netdebug.c ocfs2: free 'dummy_sc' in sc_fop_release() to prevent memory leak 2017-07-06 16:24:30 -07:00
nodemanager.c ocfs2: make several functions and variables static (and some const) 2018-08-17 16:20:28 -07:00
nodemanager.h
ocfs2_heartbeat.h
ocfs2_nodemanager.h
quorum.c ocfs2/cluster: close a race that fence can't be triggered 2018-01-31 17:18:35 -08:00
quorum.h
sys.c
sys.h
tcp_internal.h ocfs2/cluster: neaten a member of o2net_msg_handler 2018-01-31 17:18:34 -08:00
tcp.c iov_iter: Separate type from direction and use accessor functions 2018-10-24 00:41:07 +01:00
tcp.h