trace/beauty/sync_file_range.c

0001 // SPDX-License-Identifier: LGPL-2.1
0002 /*
0003  * trace/beauty/sync_file_range.c
0004  *
0005  *  Copyright (C) 2019, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
0006  */
0007
0008 #include "trace/beauty/beauty.h"
0009 #include <linux/log2.h>
0010 #include <uapi/linux/fs.h>
0011
0012 static size_t sync_file_range__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix)
0013 {
0014 #include "trace/beauty/generated/sync_file_range_arrays.c"
0015        static DEFINE_STRARRAY(sync_file_range_flags, "SYNC_FILE_RANGE_");
0016        size_t printed = 0;
0017
0018        if ((flags & SYNC_FILE_RANGE_WRITE_AND_WAIT) == SYNC_FILE_RANGE_WRITE_AND_WAIT) {
0019                printed += scnprintf(bf + printed, size - printed, "%s%s", show_prefix ? "SYNC_FILE_RANGE_" : "", "WRITE_AND_WAIT");
0020            flags &= ~SYNC_FILE_RANGE_WRITE_AND_WAIT;
0021        }
0022
0023        return printed + strarray__scnprintf_flags(&strarray__sync_file_range_flags, bf + printed, size - printed, show_prefix, flags);
0024 }
0025
0026 size_t syscall_arg__scnprintf_sync_file_range_flags(char *bf, size_t size, struct syscall_arg *arg)
0027 {
0028     unsigned long flags = arg->val;
0029
0030     return sync_file_range__scnprintf_flags(flags, bf, size, arg->show_string_prefix);
0031 }