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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>
hifive-unleashed-5.1
Hugh Dickins 2012-03-06 12:28:52 -08:00 committed by Linus Torvalds
parent 917ec63b61
commit ce8fea7aa4
1 changed files with 2 additions and 1 deletions
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3
mm/mmap.c
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@ -1266,8 +1266,9 @@ munmap_back:
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) {