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authorChristoph Hellwig <hch@lst.de>2020-06-01 21:51:19 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-02 10:59:11 -0700
commited1f324c5fed06c91f30a36aedb66f34244ab86e (patch)
treed6742539aaeca9a2f09b8f446b927a26ac0879b9 /mm/vmalloc.c
parent60bb44652a0dcc44acfc2ed8ebb35e4a389e5421 (diff)
mm: remove map_vm_range
Switch all callers to map_kernel_range, which symmetric to the unmap side (as well as the _noflush versions). 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/20200414131348.444715-17-hch@lst.de Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmalloc.c')
-rw-r--r--mm/vmalloc.c21
1 files changed, 7 insertions, 14 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index aab00ddee686..49ca687d8853 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -273,8 +273,8 @@ int map_kernel_range_noflush(unsigned long addr, unsigned long size,
return 0;
}
-static int map_kernel_range(unsigned long start, unsigned long size,
- pgprot_t prot, struct page **pages)
+int map_kernel_range(unsigned long start, unsigned long size, pgprot_t prot,
+ struct page **pages)
{
int ret;
@@ -2028,16 +2028,6 @@ void unmap_kernel_range(unsigned long addr, unsigned long size)
flush_tlb_kernel_range(addr, end);
}
-int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page **pages)
-{
- unsigned long addr = (unsigned long)area->addr;
- int err;
-
- err = map_kernel_range(addr, get_vm_area_size(area), prot, pages);
-
- return err > 0 ? 0 : err;
-}
-
static inline void setup_vmalloc_vm_locked(struct vm_struct *vm,
struct vmap_area *va, unsigned long flags, const void *caller)
{
@@ -2409,7 +2399,8 @@ void *vmap(struct page **pages, unsigned int count,
if (!area)
return NULL;
- if (map_vm_area(area, prot, pages)) {
+ if (map_kernel_range((unsigned long)area->addr, size, prot,
+ pages) < 0) {
vunmap(area->addr);
return NULL;
}
@@ -2472,8 +2463,10 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
}
atomic_long_add(area->nr_pages, &nr_vmalloc_pages);
- if (map_vm_area(area, prot, pages))
+ if (map_kernel_range((unsigned long)area->addr, get_vm_area_size(area),
+ prot, pages) < 0)
goto fail;
+
return area->addr;
fail: