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
mpage.h
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * include/linux/mpage.h
 *
 * Contains declarations related to preparing and submitting BIOS which contain
 * multiple pagecache pages.
 */

/*
 * (And no, it doesn't do the #ifdef __MPAGE_H thing, and it doesn't do
 * nested includes.  Get it right in the .c file).
 */
#ifdef CONFIG_BLOCK

struct writeback_control;
struct readahead_control;

void mpage_readahead(struct readahead_control *, get_block_t get_block);
int mpage_read_folio(struct folio *folio, get_block_t get_block);
int mpage_writepages(struct address_space *mapping,
		struct writeback_control *wbc, get_block_t get_block);

#endif
back to top