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reset-counters --counters=

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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2025-11-15 15:57:06 -05:00
parent 40ffcbc496
commit 2bb681dbd1
1 changed files with 25 additions and 4 deletions
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29
c_src/cmd_counters.c
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@ -3,6 +3,7 @@
#include "cmds.h" #include "cmds.h"
#include "libbcachefs.h" #include "libbcachefs.h"
#include "init/fs.h" #include "init/fs.h"
#include "sb/counters.h"
#include "sb/io.h" #include "sb/io.h"
static void reset_counters_usage(void) static void reset_counters_usage(void)
@ -11,6 +12,7 @@ static void reset_counters_usage(void)
"Usage: bcachefs reset-counters device\n" "Usage: bcachefs reset-counters device\n"
"\n" "\n"
"Options:\n" "Options:\n"
" -c, --counters=<counters> reset specific counters, not all\n"
" -h, --help display this help and exit\n" " -h, --help display this help and exit\n"
"\n" "\n"
"Report bugs to <linux-bcachefs@vger.kernel.org>"); "Report bugs to <linux-bcachefs@vger.kernel.org>");
@ -20,13 +22,26 @@ static void reset_counters_usage(void)
int cmd_reset_counters(int argc, char *argv[]) int cmd_reset_counters(int argc, char *argv[])
{ {
static const struct option longopts[] = { static const struct option longopts[] = {
{ "help", no_argument, NULL, 'h' }, { "counters", required_argument, NULL, 'c' },
{ "help", no_argument, NULL, 'h' },
{ NULL } { NULL }
}; };
int opt; int opt;
DARRAY(enum bch_persistent_counters) to_reset = {};
while ((opt = getopt_long(argc, argv, "h", longopts, NULL)) != -1) while ((opt = getopt_long(argc, argv, "h", longopts, NULL)) != -1)
switch (opt) { switch (opt) {
case 'c': {
char *p;
while ((p = strsep(&optarg, ","))) {
ssize_t v = match_string(bch2_counter_names, BCH_COUNTER_NR, p);
if (v < 0)
die("invalid counter %s", p);
darray_push(&to_reset, v);
}
break;
}
case 'h': case 'h':
reset_counters_usage(); reset_counters_usage();
break; break;
@ -54,10 +69,16 @@ int cmd_reset_counters(int argc, char *argv[])
if (ret) if (ret)
die("Error opening filesystem: %s", bch2_err_str(ret)); die("Error opening filesystem: %s", bch2_err_str(ret));
scoped_guard(mutex, &c->sb_lock) { if (!to_reset.nr) {
bch2_sb_field_resize(&c->disk_sb, counters, 0); for (unsigned i = 0; i < BCH_COUNTER_NR; i++)
bch2_write_super(c); percpu_u64_set(&c->counters[i], 0);
} else {
darray_for_each(to_reset, i)
percpu_u64_set(&c->counters[*i], 0);
} }
scoped_guard(mutex, &c->sb_lock)
bch2_write_super(c);
bch2_fs_stop(c); bch2_fs_stop(c);
return 0; return 0;
} }