Commit ce8fea7a authored Mar 06, 2012 by Hugh Dickins Committed by Linus Torvalds Mar 06, 2012

mmap: EINVAL not ENOMEM when rejecting VM_GROWS



Currently error is -ENOMEM when rejecting VM_GROWSDOWN|VM_GROWSUP
from shared anonymous: hoist the file case's -EINVAL up for both.

Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 917ec63b

mm/mmap.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -1266,8 +1266,9 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
		vma->vm_pgoff = pgoff;
		INIT_LIST_HEAD(&vma->anon_vma_chain);

		error = -EINVAL; /* when rejecting VM_GROWSDOWN\|VM_GROWSUP */

		if (file) {
		error = -EINVAL;
		if (vm_flags & (VM_GROWSDOWN\|VM_GROWSUP))
		goto free_vma;
		if (vm_flags & VM_DENYWRITE) {