Skip to content
Commit 7511c3ed authored by Jerome Marchand's avatar Jerome Marchand Committed by Linus Torvalds
Browse files

mm: vmalloc: don't remove inexistent guard hole in remove_vm_area()

Commit 71394fe5

 ("mm: vmalloc: add flag preventing guard hole
allocation") missed a spot.  Currently remove_vm_area() decreases vm->size
to "remove" the guard hole page, even when it isn't present.  All but one
users just free the vm_struct rigth away and never access vm->size anyway.

Don't touch the size in remove_vm_area() and have __vunmap() use the
proper get_vm_area_size() helper.

Signed-off-by: default avatarJerome Marchand <jmarchan@redhat.com>
Acked-by: default avatarAndrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: default avatarDavid Rientjes <rientjes@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 429d4862
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment