Mike Rapoport 4fabcf2294 nds32: flush_dcache_page: use page_mapping_file to avoid races with swapoff ... commit a3a8833dffb7e7329c2586b8bfc531adb503f123 upstream. Commit cb9f753a37 ("mm: fix races between swapoff and flush dcache") updated flush_dcache_page implementations on several architectures to use page_mapping_file() in order to avoid races between page_mapping() and swapoff(). This update missed arch/nds32 and there is a possibility of a race there. Replace page_mapping() with page_mapping_file() in nds32 implementation of flush_dcache_page(). Link: https://lkml.kernel.org/r/20210330175126.26500-1-rppt@kernel.org Fixes: cb9f753a37 ("mm: fix races between swapoff and flush dcache") Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Acked-by: Greentime Hu <green.hu@gmail.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Nick Hu <nickhu@andestech.com> Cc: Vincent Chen <deanbo422@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-04-14 08:41:58 +02:00
..
boot	nds32: remove unneeded clean-files for DTB	2019-11-21 16:03:27 +08:00
configs	kbuild: add CONFIG_HEADERS_INSTALL and loosen the dependency of samples	2019-06-15 19:57:01 +09:00
include	local64.h: make <asm/local64.h> mandatory	2021-01-12 20:18:16 +01:00
kernel	arch-cleanup-2020-10-22	2020-10-23 10:06:38 -07:00
lib	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
math-emu	nds32 patches for 5.2-rc3	2019-06-03 10:23:41 -07:00
mm	nds32: flush_dcache_page: use page_mapping_file to avoid races with swapoff	2021-04-14 08:41:58 +02:00
Kconfig	uaccess: add infrastructure for kernel builds with set_fs()	2020-09-08 22:21:32 -04:00
Kconfig.cpu	nds32: Fix typo in Kconfig.cpu	2019-11-21 16:05:07 +08:00
Kconfig.debug	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	kconfig: make arch/*/configs/defconfig the default of KBUILD_DEFCONFIG	2019-06-09 15:08:18 +09:00