Messages in this thread | | | Date | Tue, 30 Mar 2021 19:13:47 +0100 | From | Matthew Wilcox <> | Subject | Re: [PATCH] nds32: flush_dcache_page: use page_mapping_file to avoid races with swapoff |
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On Tue, Mar 30, 2021 at 08:51:26PM +0300, Mike Rapoport wrote: > From: Mike Rapoport <rppt@linux.ibm.com> > > Commit cb9f753a3731 ("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(). > > Fixes: cb9f753a3731 ("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>
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