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.
Signed-off-by: Roman Penyaev <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Andrey Ryabinin <[email protected]> Cc: Joe Perches <[email protected]> Cc: "Luis R. Rodriguez" <[email protected]> Cc: [email protected] Cc: [email protected] --- mm/vmalloc.c | 30 ++++++++---------------------- 1 file changed, 8 insertions(+), 22 deletions(-) diff --git a/mm/vmalloc.c b/mm/vmalloc.c index dc6a62bca503..83fa4c642f5e 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); @@ -1970,16 +1962,10 @@ EXPORT_SYMBOL(vmalloc_32); */ void *vmalloc_32_user(unsigned long size) { - struct vm_struct *area; - void *ret; - - ret = __vmalloc_node(size, 1, 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, 1, VMALLOC_START, VMALLOC_END, + GFP_VMALLOC32 | __GFP_ZERO, PAGE_KERNEL, + VM_USERMAP, NUMA_NO_NODE, + __builtin_return_address(0)); } EXPORT_SYMBOL(vmalloc_32_user); -- 2.19.1
