From: Christoph Hellwig hch@lst.de
mainline inclusion from mainline-v5.8-rc1 commit 60bb44652a0dcc44acfc2ed8ebb35e4a389e5421 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4EUVI CVE: NA
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None of the callers needs the number of pages, and a 0 / -errno return value is a lot more intuitive.
Signed-off-by: Christoph Hellwig hch@lst.de Signed-off-by: Andrew Morton akpm@linux-foundation.org Acked-by: Peter Zijlstra (Intel) peterz@infradead.org Cc: Christian Borntraeger borntraeger@de.ibm.com Cc: Christophe Leroy christophe.leroy@c-s.fr Cc: Daniel Vetter daniel.vetter@ffwll.ch Cc: David Airlie airlied@linux.ie Cc: Gao Xiang xiang@kernel.org Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Cc: Haiyang Zhang haiyangz@microsoft.com Cc: Johannes Weiner hannes@cmpxchg.org Cc: "K. Y. Srinivasan" kys@microsoft.com Cc: Laura Abbott labbott@redhat.com Cc: Mark Rutland mark.rutland@arm.com Cc: Michael Kelley mikelley@microsoft.com Cc: Minchan Kim minchan@kernel.org Cc: Nitin Gupta ngupta@vflare.org Cc: Robin Murphy robin.murphy@arm.com Cc: Sakari Ailus sakari.ailus@linux.intel.com Cc: Stephen Hemminger sthemmin@microsoft.com Cc: Sumit Semwal sumit.semwal@linaro.org Cc: Wei Liu wei.liu@kernel.org Cc: Benjamin Herrenschmidt benh@kernel.crashing.org Cc: Catalin Marinas catalin.marinas@arm.com Cc: Heiko Carstens heiko.carstens@de.ibm.com Cc: Paul Mackerras paulus@ozlabs.org Cc: Vasily Gorbik gor@linux.ibm.com Cc: Will Deacon will@kernel.org Link: http://lkml.kernel.org/r/20200414131348.444715-16-hch@lst.de Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Rui Xiang rui.xiang@huawei.com Reviewed-by: Ding Tianhong dingtianhong@huawei.com Reviewed-by: Zefan Li lizefan@huawei.com Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- mm/vmalloc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index bbdaf00b5db91..7eb558a9053c6 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -240,7 +240,7 @@ static int vmap_p4d_range(pgd_t *pgd, unsigned long addr, * function. * * RETURNS: - * The number of pages mapped on success, -errno on failure. + * 0 on success, -errno on failure. */ int map_kernel_range_noflush(unsigned long addr, unsigned long size, pgprot_t prot, struct page **pages) @@ -260,7 +260,7 @@ int map_kernel_range_noflush(unsigned long addr, unsigned long size, return err; } while (pgd++, addr = next, addr != end);
- return nr; + return 0; }
static int map_kernel_range(unsigned long start, unsigned long size,