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bcachefs: Move write_points to debugfs

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this was hitting the sysfs 4k limit

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2025-01-22 12:07:54 -05:00
parent 55a132c37a
commit 78c9c6f6cd
2 changed files with 29 additions and 8 deletions
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32
fs/bcachefs/debug.c
View File

@ -7,6 +7,7 @@
*/
#include "bcachefs.h"
#include "alloc_foreground.h"
#include "bkey_methods.h"
#include "btree_cache.h"
#include "btree_io.h"
@ -844,8 +845,11 @@ static void btree_deadlock_to_text(struct printbuf *out, struct bch_fs *c)
seqmutex_unlock(&c->btree_trans_lock);
}
static ssize_t bch2_btree_deadlock_read(struct file *file, char __user *buf,
size_t size, loff_t *ppos)
typedef void (*fs_to_text_fn)(struct printbuf *, struct bch_fs *);
static ssize_t bch2_simple_print(struct file *file, char __user *buf,
size_t size, loff_t *ppos,
fs_to_text_fn fn)
{
struct dump_iter *i = file->private_data;
struct bch_fs *c = i->c;
@ -856,7 +860,7 @@ static ssize_t bch2_btree_deadlock_read(struct file *file, char __user *buf,
i->ret = 0;
if (!i->iter) {
btree_deadlock_to_text(&i->buf, c);
fn(&i->buf, c);
i->iter++;
}
@ -869,6 +873,12 @@ static ssize_t bch2_btree_deadlock_read(struct file *file, char __user *buf,
return ret ?: i->ret;
}
static ssize_t bch2_btree_deadlock_read(struct file *file, char __user *buf,
size_t size, loff_t *ppos)
{
return bch2_simple_print(file, buf, size, ppos, btree_deadlock_to_text);
}
static const struct file_operations btree_deadlock_ops = {
.owner = THIS_MODULE,
.open = bch2_dump_open,
@ -876,6 +886,19 @@ static const struct file_operations btree_deadlock_ops = {
.read = bch2_btree_deadlock_read,
};
static ssize_t bch2_write_points_read(struct file *file, char __user *buf,
size_t size, loff_t *ppos)
{
return bch2_simple_print(file, buf, size, ppos, bch2_write_points_to_text);
}
static const struct file_operations write_points_ops = {
.owner = THIS_MODULE,
.open = bch2_dump_open,
.release = bch2_dump_release,
.read = bch2_write_points_read,
};
void bch2_fs_debug_exit(struct bch_fs *c)
{
if (!IS_ERR_OR_NULL(c->fs_debug_dir))
@ -927,6 +950,9 @@ void bch2_fs_debug_init(struct bch_fs *c)
debugfs_create_file("btree_deadlock", 0400, c->fs_debug_dir,
c->btree_debug, &btree_deadlock_ops);
debugfs_create_file("write_points", 0400, c->fs_debug_dir,
c->btree_debug, &write_points_ops);
c->btree_debug_dir = debugfs_create_dir("btrees", c->fs_debug_dir);
if (IS_ERR_OR_NULL(c->btree_debug_dir))
return;

5
fs/bcachefs/sysfs.c
View File

@ -176,7 +176,6 @@ read_attribute(btree_reserve_cache);
read_attribute(stripes_heap);
read_attribute(open_buckets);
read_attribute(open_buckets_partial);
read_attribute(write_points);
read_attribute(nocow_lock_table);
#ifdef BCH_WRITE_REF_DEBUG
@ -364,9 +363,6 @@ SHOW(bch2_fs)
if (attr == &sysfs_open_buckets_partial)
bch2_open_buckets_partial_to_text(out, c);
if (attr == &sysfs_write_points)
bch2_write_points_to_text(out, c);
if (attr == &sysfs_compression_stats)
bch2_compression_stats_to_text(out, c);
@ -569,7 +565,6 @@ struct attribute *bch2_fs_internal_files[] = {
&sysfs_stripes_heap,
&sysfs_open_buckets,
&sysfs_open_buckets_partial,
&sysfs_write_points,
#ifdef BCH_WRITE_REF_DEBUG
&sysfs_write_refs,
#endif