Commit f93bb76b authored by Kent Overstreet's avatar Kent Overstreet
Browse files

bcachefs: bch2_fs_accounting_to_text() 



Helper to show raw accounting in sysfs, mainly for debugging.

Signed-off-by: default avatarKent Overstreet <kent.overstreet@linux.dev>
parent 91f44781

fs/bcachefs/disk_accounting.c

+26 −0
Original line number Diff line number Diff line
@@ -308,6 +308,32 @@ int bch2_fs_replicas_usage_read(struct bch_fs *c, darray_char *usage) 
	return ret;

}



void bch2_fs_accounting_to_text(struct printbuf *out, struct bch_fs *c)

{

	struct bch_accounting_mem *acc = &c->accounting[0];



	percpu_down_read(&c->mark_lock);

	out->atomic++;



	eytzinger0_for_each(i, acc->k.nr) {

		struct disk_accounting_pos acc_k;

		bpos_to_disk_accounting_pos(&acc_k, acc->k.data[i].pos);



		bch2_accounting_key_to_text(out, &acc_k);



		u64 v[BCH_ACCOUNTING_MAX_COUNTERS];

		bch2_accounting_mem_read_counters(c, i, v, ARRAY_SIZE(v), false);



		prt_str(out, ":");

		for (unsigned j = 0; j < acc->k.data[i].nr_counters; j++)

			prt_printf(out, " %llu", v[j]);

		prt_newline(out);

	}



	--out->atomic;

	percpu_up_read(&c->mark_lock);

}



/* Ensures all counters in @src exist in @dst: */

static int copy_counters(struct bch_accounting_mem *dst,

			 struct bch_accounting_mem *src)

fs/bcachefs/disk_accounting.h

+1 −0
Original line number Diff line number Diff line
@@ -193,6 +193,7 @@ static inline void bch2_accounting_mem_read(struct bch_fs *c, struct bpos p, 
}



int bch2_fs_replicas_usage_read(struct bch_fs *, darray_char *);

void bch2_fs_accounting_to_text(struct printbuf *, struct bch_fs *);



int bch2_accounting_gc_done(struct bch_fs *);

fs/bcachefs/sysfs.c

+5 −0
Original line number Diff line number Diff line
@@ -203,6 +203,7 @@ read_attribute(disk_groups); 


read_attribute(has_data);

read_attribute(alloc_debug);

read_attribute(accounting);



#define x(t, n, ...) read_attribute(t);

BCH_PERSISTENT_COUNTERS()
@@ -388,6 +389,9 @@ SHOW(bch2_fs) 
	if (attr == &sysfs_alloc_debug)

		bch2_fs_alloc_debug_to_text(out, c);



	if (attr == &sysfs_accounting)

		bch2_fs_accounting_to_text(out, c);



	return 0;

}
@@ -601,6 +605,7 @@ struct attribute *bch2_fs_internal_files[] = { 


	&sysfs_disk_groups,

	&sysfs_alloc_debug,

	&sysfs_accounting,

	NULL

};