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authorLee Schermerhorn <lee.schermerhorn@hp.com>2008-10-18 20:26:56 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 08:52:31 -0700
commitc11d69d8c830e09a0e7b3935c952afb26c48bba8 (patch)
treec419910614bf29a77b3491014e13a7089093993a /mm
parente0f79b8f1f3394bb344b7b83d6f121ac2af327de (diff)
downloadconfigs-c11d69d8c830e09a0e7b3935c952afb26c48bba8.tar.gz
mlock: revert mainline handling of mlock error return
This change is intended to make mlock() error returns correct. make_page_present() is a lower level function used by more than mlock(). Subsequent patch[es] will add this error return fixup in an mlock specific path. Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/memory.c14
1 files changed, 2 insertions, 12 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 450127f4c58..b8487f8cd82 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2819,19 +2819,9 @@ int make_pages_present(unsigned long addr, unsigned long end)
len = DIV_ROUND_UP(end, PAGE_SIZE) - addr/PAGE_SIZE;
ret = get_user_pages(current, current->mm, addr,
len, write, 0, NULL, NULL);
- if (ret < 0) {
- /*
- SUS require strange return value to mlock
- - invalid addr generate to ENOMEM.
- - out of memory should generate EAGAIN.
- */
- if (ret == -EFAULT)
- ret = -ENOMEM;
- else if (ret == -ENOMEM)
- ret = -EAGAIN;
+ if (ret < 0)
return ret;
- }
- return ret == len ? 0 : -ENOMEM;
+ return ret == len ? 0 : -1;
}
#if !defined(__HAVE_ARCH_GATE_AREA)