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
goldfish.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_GOLDFISH_H
#define __LINUX_GOLDFISH_H
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/io.h>
/* Helpers for Goldfish virtual platform */
#ifndef gf_ioread32
#define gf_ioread32 ioread32
#endif
#ifndef gf_iowrite32
#define gf_iowrite32 iowrite32
#endif
static inline void gf_write_ptr(const void *ptr, void __iomem *portl,
void __iomem *porth)
{
const unsigned long addr = (unsigned long)ptr;
gf_iowrite32(lower_32_bits(addr), portl);
#ifdef CONFIG_64BIT
gf_iowrite32(upper_32_bits(addr), porth);
#endif
}
static inline void gf_write_dma_addr(const dma_addr_t addr,
void __iomem *portl,
void __iomem *porth)
{
gf_iowrite32(lower_32_bits(addr), portl);
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
gf_iowrite32(upper_32_bits(addr), porth);
#endif
}
#endif /* __LINUX_GOLDFISH_H */
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