Revision 64b4c411a6c7a5f27555bfc2d6310b87bde3db67 authored by Andrew Morton on 21 October 2022, 04:19:22 UTC, committed by Andrew Morton on 28 October 2022, 20:37:22 UTC
These percpu counters are referenced in free_ipcs->freeque, so destroy
them later.

Fixes: 72d1e611082e ("ipc/msg: mitigate the lock contention with percpu counter")
Reported-by: syzbot+96e659d35b9d6b541152@syzkaller.appspotmail.com
Tested-by: Mark Rutland <mark.rutland@arm.com>
Cc: Jiebin Sun <jiebin.sun@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
1 parent 27d676a
Raw File
errno.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_ERRNO_H
#define _LINUX_ERRNO_H

#include <uapi/linux/errno.h>


/*
 * These should never be seen by user programs.  To return one of ERESTART*
 * codes, signal_pending() MUST be set.  Note that ptrace can observe these
 * at syscall exit tracing, but they will never be left for the debugged user
 * process to see.
 */
#define ERESTARTSYS	512
#define ERESTARTNOINTR	513
#define ERESTARTNOHAND	514	/* restart if no handler.. */
#define ENOIOCTLCMD	515	/* No ioctl command */
#define ERESTART_RESTARTBLOCK 516 /* restart by calling sys_restart_syscall */
#define EPROBE_DEFER	517	/* Driver requests probe retry */
#define EOPENSTALE	518	/* open found a stale dentry */
#define ENOPARAM	519	/* Parameter not supported */

/* Defined for the NFSv3 protocol */
#define EBADHANDLE	521	/* Illegal NFS file handle */
#define ENOTSYNC	522	/* Update synchronization mismatch */
#define EBADCOOKIE	523	/* Cookie is stale */
#define ENOTSUPP	524	/* Operation is not supported */
#define ETOOSMALL	525	/* Buffer or request is too small */
#define ESERVERFAULT	526	/* An untranslatable error occurred */
#define EBADTYPE	527	/* Type not supported by server */
#define EJUKEBOX	528	/* Request initiated, but will not complete before timeout */
#define EIOCBQUEUED	529	/* iocb queued, will get completion event */
#define ERECALLCONFLICT	530	/* conflict with recalled state */
#define ENOGRACE	531	/* NFS file lock reclaim refused */

#endif
back to top