From: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Date: Tue, 14 Apr 2015 22:44:42 +0000 (-0700) Subject: mm: move gup() -> posix mlock() error conversion out of __mm_populate X-Git-Tag: firefly_0821_release~176^2~1984^2~77 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c561259ca79a88be540a75e84b45d49123014aa4;p=firefly-linux-kernel-4.4.55.git mm: move gup() -> posix mlock() error conversion out of __mm_populate This is praparation to moving mm_populate()-related code out of mm/mlock.c. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: David Rientjes <rientjes@google.com> Cc: Michel Lespinasse <walken@google.com> Cc: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- diff --git a/mm/mlock.c b/mm/mlock.c index 9d0f3cd716c5..0214263fca45 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -712,7 +712,6 @@ int __mm_populate(unsigned long start, unsigned long len, int ignore_errors) ret = 0; continue; /* continue at next VMA */ } - ret = __mlock_posix_error_return(ret); break; } nend = nstart + ret * PAGE_SIZE; @@ -750,9 +749,13 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len) error = do_mlock(start, len, 1); up_write(¤t->mm->mmap_sem); - if (!error) - error = __mm_populate(start, len, 0); - return error; + if (error) + return error; + + error = __mm_populate(start, len, 0); + if (error) + return __mlock_posix_error_return(error); + return 0; } SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)