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[PATCH] hugetlb: fix error return for brk() entering a hugepage region 

Commit cb07c9a186 causes the wrong return
value.  is_hugepage_only_range() is a boolean, so we should return
-EINVAL rather than 1.

Also - we can use "mm" instead of looking up "current->mm" again.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
hifive-unleashed-5.1
Hugh Dickins 2006-11-14 13:43:38 +00:00 committed by Linus Torvalds
parent 1f794b6082
commit cd2579d7aa
1 changed files with 2 additions and 3 deletions
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5
mm/mmap.c
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@ -1880,9 +1880,8 @@ unsigned long do_brk(unsigned long addr, unsigned long len)
if ((addr + len) > TASK_SIZE || (addr + len) < addr)
return -EINVAL;
error = is_hugepage_only_range(current->mm, addr, len);
if (error)
return error;
if (is_hugepage_only_range(mm, addr, len))
return -EINVAL;
flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;