Commit 560661d4 authored by Kent Overstreet's avatar Kent Overstreet
Browse files

bcachefs: prt_bitflags_vector() 



similar to prt_bitflags(), but for ulong arrays

Signed-off-by: default avatarKent Overstreet <kent.overstreet@linux.dev>
parent 6b49b0f7

fs/bcachefs/printbuf.c

+22 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: LGPL-2.1+

/* Copyright (C) 2022 Kent Overstreet */



#include <linux/bitmap.h>

#include <linux/err.h>

#include <linux/export.h>

#include <linux/kernel.h>
@@ -423,3 +424,24 @@ void bch2_prt_bitflags(struct printbuf *out, 
		flags ^= BIT_ULL(bit);

	}

}



void bch2_prt_bitflags_vector(struct printbuf *out,

			      const char * const list[],

			      unsigned long *v, unsigned nr)

{

	bool first = true;

	unsigned i;



	for (i = 0; i < nr; i++)

		if (!list[i]) {

			nr = i - 1;

			break;

		}



	for_each_set_bit(i, v, nr) {

		if (!first)

			bch2_prt_printf(out, ",");

		first = false;

		bch2_prt_printf(out, "%s", list[i]);

	}

}

fs/bcachefs/printbuf.h

+2 −0
Original line number Diff line number Diff line
@@ -124,6 +124,8 @@ void bch2_prt_units_u64(struct printbuf *, u64); 
void bch2_prt_units_s64(struct printbuf *, s64);

void bch2_prt_string_option(struct printbuf *, const char * const[], size_t);

void bch2_prt_bitflags(struct printbuf *, const char * const[], u64);

void bch2_prt_bitflags_vector(struct printbuf *, const char * const[],

			      unsigned long *, unsigned);



/* Initializer for a heap allocated printbuf: */

#define PRINTBUF ((struct printbuf) { .heap_allocated = true })

fs/bcachefs/util.h

+1 −0
Original line number Diff line number Diff line
@@ -243,6 +243,7 @@ do { \ 
#define prt_units_s64(...)		bch2_prt_units_s64(__VA_ARGS__)

#define prt_string_option(...)		bch2_prt_string_option(__VA_ARGS__)

#define prt_bitflags(...)		bch2_prt_bitflags(__VA_ARGS__)

#define prt_bitflags_vector(...)	bch2_prt_bitflags_vector(__VA_ARGS__)



void bch2_pr_time_units(struct printbuf *, u64);

void bch2_prt_datetime(struct printbuf *, time64_t);