The patch titled
Subject: proc: more robust bulk read test
has been added to the -mm tree. Its filename is
proc-more-robust-bulk-read-test.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/proc-more-robust-bulk-read-test.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/proc-more-robust-bulk-read-test.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Subject: proc: more robust bulk read test
/proc may not be mounted and test will exit successfully.
Ensure proc is mounted at /proc.
Link: http://lkml.kernel.org/r/20190209105613.GA10384@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/proc/read.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
--- a/tools/testing/selftests/proc/read.c~proc-more-robust-bulk-read-test
+++ a/tools/testing/selftests/proc/read.c
@@ -26,8 +26,10 @@
#include <dirent.h>
#include <stdbool.h>
#include <stdlib.h>
+#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
+#include <sys/vfs.h>
#include <fcntl.h>
#include <unistd.h>
@@ -123,10 +125,22 @@ static void f(DIR *d, unsigned int level
int main(void)
{
DIR *d;
+ struct statfs sfs;
d = opendir("/proc");
if (!d)
return 4;
+
+ /* Ensure /proc is proc. */
+ if (fstatfs(dirfd(d), &sfs) == -1) {
+ return 1;
+ }
+ if (sfs.f_type != 0x9fa0) {
+ fprintf(stderr, "error: unexpected f_type %lx\n", (long)sfs.f_type);
+ return 2;
+ }
+
f(d, 0);
+
return 0;
}
_
Patches currently in -mm which might be from adobriyan@xxxxxxxxx are
ramfs-support-o_tmpfile.patch
mm-shuffle-gfp_-flags.patch
numa-make-nr_node_ids-unsigned-int.patch
numa-make-nr_online_nodes-unsigned-int.patch
proc-return-exit-code-4-for-skipped-tests.patch
proc-read-kernel-cpu-stat-pointer-once.patch
proc-use-seq_puts-everywhere.patch
proc-test-proc-maps-smaps-smaps_rollup-statm.patch
proc-test-proc-maps-smaps-smaps_rollup-statm-fix.patch
proc-more-robust-bulk-read-test.patch
elf-dont-be-afraid-of-overflow.patch
elf-use-list_for_each_entry.patch
elf-use-list_for_each_entry-fix.patch
elf-spread-const-a-little.patch
proc-calculate-end-pointer-for-proc-lookup-at-compile-time.patch
