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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2023-12-30 23:58:50 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-01-01 11:47:07 -0500 |
| commit | 560661d4ae067276c14bf0dc89fdd0228f993150 (patch) | |
| tree | 71d5a52c750c101f7cb8de585fcbf3012b158466 | |
| parent | 6b49b0f7e73817265f80c565037ac812df6f1ae3 (diff) | |
| download | misc-560661d4ae067276c14bf0dc89fdd0228f993150.tar.gz | |
bcachefs: prt_bitflags_vector()
similar to prt_bitflags(), but for ulong arrays
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
| -rw-r--r-- | fs/bcachefs/printbuf.c | 22 | ||||
| -rw-r--r-- | fs/bcachefs/printbuf.h | 2 | ||||
| -rw-r--r-- | fs/bcachefs/util.h | 1 |
3 files changed, 25 insertions, 0 deletions
diff --git a/fs/bcachefs/printbuf.c b/fs/bcachefs/printbuf.c index 5e653eb81d54f8..accf246c323309 100644 --- a/fs/bcachefs/printbuf.c +++ b/fs/bcachefs/printbuf.c @@ -1,6 +1,7 @@ // 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]); + } +} diff --git a/fs/bcachefs/printbuf.h b/fs/bcachefs/printbuf.h index 2191423d9f2289..9a4a56c4093715 100644 --- a/fs/bcachefs/printbuf.h +++ b/fs/bcachefs/printbuf.h @@ -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 }) diff --git a/fs/bcachefs/util.h b/fs/bcachefs/util.h index 2984b57b29584f..b701f7fe0784ef 100644 --- a/fs/bcachefs/util.h +++ b/fs/bcachefs/util.h @@ -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); |