diff options
| author | Roman Penyaev <rpenyaev@suse.de> | 2019-03-05 15:43:27 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-05 21:07:15 -0800 |
| commit | bc84c53525b4199317df1dab414263a68ba4b6f6 (patch) | |
| tree | f209c6fd96157d7981bb685e3eeab926d9825f1b | |
| parent | c67dc6247576250a9c9f09adcabad0385a1e7d73 (diff) | |
| download | linux-bc84c53525b4199317df1dab414263a68ba4b6f6.tar.bz2 | |
mm/vmalloc: pass VM_USERMAP flags directly to __vmalloc_node_range()
vmalloc_user*() calls differ from normal vmalloc() only in that they set
VM_USERMAP flags for the area. During the whole history of vmalloc.c
changes now it is possible simply to pass VM_USERMAP flags directly to
__vmalloc_node_range() call instead of finding the area (which obviously
takes time) after the allocation.
Link: http://lkml.kernel.org/r/20190103145954.16942-4-rpenyaev@suse.de
Signed-off-by: Roman Penyaev <rpenyaev@suse.de>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Joe Perches <joe@perches.com>
Cc: "Luis R. Rodriguez" <mcgrof@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/vmalloc.c | 31 |
1 files changed, 8 insertions, 23 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 351ec73b3288..895b2c522d86 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -1865,18 +1865,10 @@ EXPORT_SYMBOL(vzalloc); */ void *vmalloc_user(unsigned long size) { - struct vm_struct *area; - void *ret; - - ret = __vmalloc_node(size, SHMLBA, - GFP_KERNEL | __GFP_ZERO, - PAGE_KERNEL, NUMA_NO_NODE, - __builtin_return_address(0)); - if (ret) { - area = find_vm_area(ret); - area->flags |= VM_USERMAP; - } - return ret; + return __vmalloc_node_range(size, SHMLBA, VMALLOC_START, VMALLOC_END, + GFP_KERNEL | __GFP_ZERO, PAGE_KERNEL, + VM_USERMAP, NUMA_NO_NODE, + __builtin_return_address(0)); } EXPORT_SYMBOL(vmalloc_user); @@ -1970,17 +1962,10 @@ EXPORT_SYMBOL(vmalloc_32); */ void *vmalloc_32_user(unsigned long size) { - struct vm_struct *area; - void *ret; - - ret = __vmalloc_node(size, SHMLBA, GFP_VMALLOC32 | __GFP_ZERO, - PAGE_KERNEL, NUMA_NO_NODE, - __builtin_return_address(0)); - if (ret) { - area = find_vm_area(ret); - area->flags |= VM_USERMAP; - } - return ret; + return __vmalloc_node_range(size, SHMLBA, VMALLOC_START, VMALLOC_END, + GFP_VMALLOC32 | __GFP_ZERO, PAGE_KERNEL, + VM_USERMAP, NUMA_NO_NODE, + __builtin_return_address(0)); } EXPORT_SYMBOL(vmalloc_32_user); |