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authorSimon Guo <wei.guo.simon@gmail.com>2016-10-08 01:59:49 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2016-10-08 03:46:28 +0200
commitd5aed9c06712520a6e919dc5c0525e39d9795124 (patch)
tree757c69222eb90e0d58650cbaaac82349738a2889
parentselftests/vm: add test for mlock() when areas are intersected (diff)
downloadlinux-d5aed9c06712520a6e919dc5c0525e39d9795124.tar.xz
linux-d5aed9c06712520a6e919dc5c0525e39d9795124.zip
selftest: move seek_to_smaps_entry() out of mlock2-tests.c
Function seek_to_smaps_entry() can be useful for other selftest functionalities, so move it out to header file. Link: http://lkml.kernel.org/r/1473325970-11393-3-git-send-email-wei.guo.simon@gmail.com Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Eric B Munson <emunson@akamai.com> Cc: Simon Guo <wei.guo.simon@gmail.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Alexey Klimov <klimov.linux@gmail.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Thierry Reding <treding@nvidia.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--tools/testing/selftests/vm/mlock2-tests.c42
-rw-r--r--tools/testing/selftests/vm/mlock2.h42
2 files changed, 42 insertions, 42 deletions
diff --git a/tools/testing/selftests/vm/mlock2-tests.c b/tools/testing/selftests/vm/mlock2-tests.c
index 7cb13cede483..ff0cda2b19c9 100644
--- a/tools/testing/selftests/vm/mlock2-tests.c
+++ b/tools/testing/selftests/vm/mlock2-tests.c
@@ -1,8 +1,6 @@
#define _GNU_SOURCE
#include <sys/mman.h>
#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/time.h>
@@ -119,46 +117,6 @@ static uint64_t get_kpageflags(unsigned long pfn)
return flags;
}
-static FILE *seek_to_smaps_entry(unsigned long addr)
-{
- FILE *file;
- char *line = NULL;
- size_t size = 0;
- unsigned long start, end;
- char perms[5];
- unsigned long offset;
- char dev[32];
- unsigned long inode;
- char path[BUFSIZ];
-
- file = fopen("/proc/self/smaps", "r");
- if (!file) {
- perror("fopen smaps");
- _exit(1);
- }
-
- while (getline(&line, &size, file) > 0) {
- if (sscanf(line, "%lx-%lx %s %lx %s %lu %s\n",
- &start, &end, perms, &offset, dev, &inode, path) < 6)
- goto next;
-
- if (start <= addr && addr < end)
- goto out;
-
-next:
- free(line);
- line = NULL;
- size = 0;
- }
-
- fclose(file);
- file = NULL;
-
-out:
- free(line);
- return file;
-}
-
#define VMFLAGS "VmFlags:"
static bool is_vmflag_set(unsigned long addr, const char *vmflag)
diff --git a/tools/testing/selftests/vm/mlock2.h b/tools/testing/selftests/vm/mlock2.h
index b9c6d9fe372f..7ee062929d3e 100644
--- a/tools/testing/selftests/vm/mlock2.h
+++ b/tools/testing/selftests/vm/mlock2.h
@@ -1,5 +1,7 @@
#include <syscall.h>
#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
#ifndef MLOCK_ONFAULT
#define MLOCK_ONFAULT 1
@@ -18,3 +20,43 @@ static int mlock2_(void *start, size_t len, int flags)
return -1;
#endif
}
+
+static FILE *seek_to_smaps_entry(unsigned long addr)
+{
+ FILE *file;
+ char *line = NULL;
+ size_t size = 0;
+ unsigned long start, end;
+ char perms[5];
+ unsigned long offset;
+ char dev[32];
+ unsigned long inode;
+ char path[BUFSIZ];
+
+ file = fopen("/proc/self/smaps", "r");
+ if (!file) {
+ perror("fopen smaps");
+ _exit(1);
+ }
+
+ while (getline(&line, &size, file) > 0) {
+ if (sscanf(line, "%lx-%lx %s %lx %s %lu %s\n",
+ &start, &end, perms, &offset, dev, &inode, path) < 6)
+ goto next;
+
+ if (start <= addr && addr < end)
+ goto out;
+
+next:
+ free(line);
+ line = NULL;
+ size = 0;
+ }
+
+ fclose(file);
+ file = NULL;
+
+out:
+ free(line);
+ return file;
+}