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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2015-04-14 15:44:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-14 16:49:00 -0700
commitc561259ca79a88be540a75e84b45d49123014aa4 (patch)
tree4e5e814cc4353bc0410d1ae7aebb6ecb1034eb36 /mm/mlock.c
parentfc05f566210fa57f8e68ead8762b8dbb3f1c61e3 (diff)
downloadop-kernel-dev-c561259ca79a88be540a75e84b45d49123014aa4.zip
op-kernel-dev-c561259ca79a88be540a75e84b45d49123014aa4.tar.gz
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>
Diffstat (limited to 'mm/mlock.c')
-rw-r--r--mm/mlock.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/mm/mlock.c b/mm/mlock.c
index 9d0f3cd..0214263 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(&current->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)
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