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e06a6b55ed
The program prints expected errors from write/read of the files with
invalid huge count, for only debugging purpose. It is only making the
output noisy. Remove those.
Link: https://lkml.kernel.org/r/20241028233058.283381-3-sj@kernel.org
Fixes: b4a002889d ("selftests/damon: test debugfs file reads/writes with huge count")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Andrew Paniakin <apanyaki@amazon.com>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Gow <davidgow@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
47 lines
942 B
C
47 lines
942 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Author: SeongJae Park <sj@kernel.org>
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*/
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#include <fcntl.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdio.h>
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#pragma GCC diagnostic push
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#if __GNUC__ >= 11 && __GNUC_MINOR__ >= 1
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/* Ignore read(2) overflow and write(2) overread compile warnings */
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#pragma GCC diagnostic ignored "-Wstringop-overread"
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#pragma GCC diagnostic ignored "-Wstringop-overflow"
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#endif
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void write_read_with_huge_count(char *file)
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{
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int filedesc = open(file, O_RDWR);
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char buf[256];
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int ret;
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printf("%s %s\n", __func__, file);
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if (filedesc < 0) {
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fprintf(stderr, "failed opening %s\n", file);
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exit(1);
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}
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write(filedesc, "", 0xfffffffful);
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ret = read(filedesc, buf, 0xfffffffful);
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close(filedesc);
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}
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#pragma GCC diagnostic pop
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int main(int argc, char *argv[])
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{
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if (argc != 2) {
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fprintf(stderr, "Usage: %s <file>\n", argv[0]);
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exit(1);
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}
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write_read_with_huge_count(argv[1]);
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return 0;
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}
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