| From | ira.weiny@intel ... | Subject | [PATCH RFC PKS/PMEM 54/58] powerpc: Utilize new kmap_thread() | Date | Fri, 9 Oct 2020 12:50:29 -0700 |
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From: Ira Weiny <ira.weiny@intel.com>
These kmap() calls are localized to a single thread. To avoid the over head of global PKRS updates use the new kmap_thread() call.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Ira Weiny <ira.weiny@intel.com> --- arch/powerpc/mm/mem.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 42e25874f5a8..6ef557b8dda6 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -573,9 +573,9 @@ void flush_icache_user_page(struct vm_area_struct *vma, struct page *page, { unsigned long maddr; - maddr = (unsigned long) kmap(page) + (addr & ~PAGE_MASK); + maddr = (unsigned long) kmap_thread(page) + (addr & ~PAGE_MASK); flush_icache_range(maddr, maddr + len); - kunmap(page); + kunmap_thread(page); } /* -- 2.28.0.rc0.12.gb6a658bd00c9
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