#include "extents.h"
#include "fsck.h"
#include "inode.h"
-#include "io.h"
#include "super.h"
#include <linux/console.h>
return false;
bio = bio_alloc_bioset(ca->disk_sb.bdev,
- buf_pages(n_sorted, btree_bytes(c)),
+ buf_pages(n_sorted, btree_buf_bytes(b)),
REQ_OP_READ|REQ_META,
GFP_NOFS,
&c->btree_bio);
bio->bi_iter.bi_sector = pick.ptr.offset;
- bch2_bio_map(bio, n_sorted, btree_bytes(c));
+ bch2_bio_map(bio, n_sorted, btree_buf_bytes(b));
submit_bio_wait(bio);
bio_put(bio);
percpu_ref_put(&ca->io_ref);
- memcpy(n_ondisk, n_sorted, btree_bytes(c));
+ memcpy(n_ondisk, n_sorted, btree_buf_bytes(b));
v->written = 0;
if (bch2_btree_node_read_done(c, ca, v, false, &saw_error) || saw_error)
mutex_lock(&c->verify_lock);
if (!c->verify_ondisk) {
- c->verify_ondisk = kvpmalloc(btree_bytes(c), GFP_KERNEL);
+ c->verify_ondisk = kvmalloc(btree_buf_bytes(b), GFP_KERNEL);
if (!c->verify_ondisk)
goto out;
}
BUG_ON(b->nsets != 1);
for (k = inmemory->start; k != vstruct_last(inmemory); k = bkey_p_next(k))
- if (k->type == KEY_TYPE_btree_ptr_v2) {
- struct bch_btree_ptr_v2 *v = (void *) bkeyp_val(&b->format, k);
- v->mem_ptr = 0;
- }
+ if (k->type == KEY_TYPE_btree_ptr_v2)
+ ((struct bch_btree_ptr_v2 *) bkeyp_val(&b->format, k))->mem_ptr = 0;
v = c->verify_data;
bkey_copy(&v->key, &b->key);
return;
}
- n_ondisk = kvpmalloc(btree_bytes(c), GFP_KERNEL);
+ n_ondisk = kvmalloc(btree_buf_bytes(b), GFP_KERNEL);
if (!n_ondisk) {
prt_printf(out, "memory allocation failure\n");
goto out;
}
bio = bio_alloc_bioset(ca->disk_sb.bdev,
- buf_pages(n_ondisk, btree_bytes(c)),
+ buf_pages(n_ondisk, btree_buf_bytes(b)),
REQ_OP_READ|REQ_META,
GFP_NOFS,
&c->btree_bio);
bio->bi_iter.bi_sector = pick.ptr.offset;
- bch2_bio_map(bio, n_ondisk, btree_bytes(c));
+ bch2_bio_map(bio, n_ondisk, btree_buf_bytes(b));
ret = submit_bio_wait(bio);
if (ret) {
out:
if (bio)
bio_put(bio);
- kvpfree(n_ondisk, btree_bytes(c));
+ kvfree(n_ondisk);
percpu_ref_put(&ca->io_ref);
}
{
if (i->buf.pos) {
size_t bytes = min_t(size_t, i->buf.pos, i->size);
- int err = copy_to_user(i->ubuf, i->buf.buf, bytes);
+ int copied = bytes - copy_to_user(i->ubuf, i->buf.buf, bytes);
- if (err)
- return err;
+ i->ret += copied;
+ i->ubuf += copied;
+ i->size -= copied;
+ i->buf.pos -= copied;
+ memmove(i->buf.buf, i->buf.buf + copied, i->buf.pos);
- i->ret += bytes;
- i->ubuf += bytes;
- i->size -= bytes;
- i->buf.pos -= bytes;
- memmove(i->buf.buf, i->buf.buf + bytes, i->buf.pos);
+ if (copied != bytes)
+ return -EFAULT;
}
return i->size ? 0 : i->ret;
size_t size, loff_t *ppos)
{
struct dump_iter *i = file->private_data;
- struct btree_trans trans;
- struct btree_iter iter;
- struct bkey_s_c k;
- ssize_t ret;
i->ubuf = buf;
i->size = size;
i->ret = 0;
- ret = flush_buf(i);
- if (ret)
- return ret;
-
- bch2_trans_init(&trans, i->c, 0, 0);
- ret = for_each_btree_key2(&trans, iter, i->id, i->from,
- BTREE_ITER_PREFETCH|
- BTREE_ITER_ALL_SNAPSHOTS, k, ({
- bch2_bkey_val_to_text(&i->buf, i->c, k);
- prt_newline(&i->buf);
- drop_locks_do(&trans, flush_buf(i));
- }));
- i->from = iter.pos;
-
- bch2_trans_exit(&trans);
-
- if (!ret)
- ret = flush_buf(i);
-
- return ret ?: i->ret;
+ return flush_buf(i) ?:
+ bch2_trans_run(i->c,
+ for_each_btree_key(trans, iter, i->id, i->from,
+ BTREE_ITER_PREFETCH|
+ BTREE_ITER_ALL_SNAPSHOTS, k, ({
+ bch2_bkey_val_to_text(&i->buf, i->c, k);
+ prt_newline(&i->buf);
+ bch2_trans_unlock(trans);
+ i->from = bpos_successor(iter.pos);
+ flush_buf(i);
+ }))) ?:
+ i->ret;
}
static const struct file_operations btree_debug_ops = {
size_t size, loff_t *ppos)
{
struct dump_iter *i = file->private_data;
- struct btree_trans trans;
+ struct btree_trans *trans;
struct btree_iter iter;
struct btree *b;
ssize_t ret;
if (bpos_eq(SPOS_MAX, i->from))
return i->ret;
- bch2_trans_init(&trans, i->c, 0, 0);
+ trans = bch2_trans_get(i->c);
retry:
- bch2_trans_begin(&trans);
+ bch2_trans_begin(trans);
- for_each_btree_node(&trans, iter, i->id, i->from, 0, b, ret) {
+ for_each_btree_node(trans, iter, i->id, i->from, 0, b, ret) {
bch2_btree_node_to_text(&i->buf, i->c, b);
i->from = !bpos_eq(SPOS_MAX, b->key.k.p)
? bpos_successor(b->key.k.p)
: b->key.k.p;
- ret = drop_locks_do(&trans, flush_buf(i));
+ ret = drop_locks_do(trans, flush_buf(i));
if (ret)
break;
}
- bch2_trans_iter_exit(&trans, &iter);
+ bch2_trans_iter_exit(trans, &iter);
if (bch2_err_matches(ret, BCH_ERR_transaction_restart))
goto retry;
- bch2_trans_exit(&trans);
+ bch2_trans_put(trans);
if (!ret)
ret = flush_buf(i);
size_t size, loff_t *ppos)
{
struct dump_iter *i = file->private_data;
- struct btree_trans trans;
- struct btree_iter iter;
- struct bkey_s_c k;
- ssize_t ret;
i->ubuf = buf;
i->size = size;
i->ret = 0;
- ret = flush_buf(i);
- if (ret)
- return ret;
-
- bch2_trans_init(&trans, i->c, 0, 0);
-
- ret = for_each_btree_key2(&trans, iter, i->id, i->from,
- BTREE_ITER_PREFETCH|
- BTREE_ITER_ALL_SNAPSHOTS, k, ({
- struct btree_path_level *l = &iter.path->l[0];
- struct bkey_packed *_k =
- bch2_btree_node_iter_peek(&l->iter, l->b);
-
- if (bpos_gt(l->b->key.k.p, i->prev_node)) {
- bch2_btree_node_to_text(&i->buf, i->c, l->b);
- i->prev_node = l->b->key.k.p;
- }
-
- bch2_bfloat_to_text(&i->buf, l->b, _k);
- drop_locks_do(&trans, flush_buf(i));
- }));
- i->from = iter.pos;
-
- bch2_trans_exit(&trans);
-
- if (!ret)
- ret = flush_buf(i);
-
- return ret ?: i->ret;
+ return flush_buf(i) ?:
+ bch2_trans_run(i->c,
+ for_each_btree_key(trans, iter, i->id, i->from,
+ BTREE_ITER_PREFETCH|
+ BTREE_ITER_ALL_SNAPSHOTS, k, ({
+ struct btree_path_level *l =
+ &btree_iter_path(trans, &iter)->l[0];
+ struct bkey_packed *_k =
+ bch2_btree_node_iter_peek(&l->iter, l->b);
+
+ if (bpos_gt(l->b->key.k.p, i->prev_node)) {
+ bch2_btree_node_to_text(&i->buf, i->c, l->b);
+ i->prev_node = l->b->key.k.p;
+ }
+
+ bch2_bfloat_to_text(&i->buf, l->b, _k);
+ bch2_trans_unlock(trans);
+ i->from = bpos_successor(iter.pos);
+ flush_buf(i);
+ }))) ?:
+ i->ret;
}
static const struct file_operations bfloat_failed_debug_ops = {
prt_printf(out, "%px btree=%s l=%u ",
b,
- bch2_btree_ids[b->c.btree_id],
+ bch2_btree_id_str(b->c.btree_id),
b->c.level);
prt_newline(out);
.read = bch2_cached_btree_nodes_read,
};
-#ifdef CONFIG_BCACHEFS_DEBUG_TRANSACTIONS
static ssize_t bch2_btree_transactions_read(struct file *file, char __user *buf,
size_t size, loff_t *ppos)
{
restart:
seqmutex_lock(&c->btree_trans_lock);
list_for_each_entry(trans, &c->btree_trans_list, list) {
- if (trans->locking_wait.task->pid <= i->iter)
+ struct task_struct *task = READ_ONCE(trans->locking_wait.task);
+
+ if (!task || task->pid <= i->iter)
continue;
closure_get(&trans->ref);
prt_printf(&i->buf, "backtrace:");
prt_newline(&i->buf);
printbuf_indent_add(&i->buf, 2);
- bch2_prt_task_backtrace(&i->buf, trans->locking_wait.task);
+ bch2_prt_task_backtrace(&i->buf, task, 0, GFP_KERNEL);
printbuf_indent_sub(&i->buf, 2);
prt_newline(&i->buf);
- i->iter = trans->locking_wait.task->pid;
+ i->iter = task->pid;
closure_put(&trans->ref);
.release = bch2_dump_release,
.read = bch2_btree_transactions_read,
};
-#endif /* CONFIG_BCACHEFS_DEBUG_TRANSACTIONS */
static ssize_t bch2_journal_pins_read(struct file *file, char __user *buf,
size_t size, loff_t *ppos)
.read = bch2_journal_pins_read,
};
-static int lock_held_stats_open(struct inode *inode, struct file *file)
+static int btree_transaction_stats_open(struct inode *inode, struct file *file)
{
struct bch_fs *c = inode->i_private;
struct dump_iter *i;
if (!i)
return -ENOMEM;
- i->iter = 0;
+ i->iter = 1;
i->c = c;
i->buf = PRINTBUF;
file->private_data = i;
return 0;
}
-static int lock_held_stats_release(struct inode *inode, struct file *file)
+static int btree_transaction_stats_release(struct inode *inode, struct file *file)
{
struct dump_iter *i = file->private_data;
return 0;
}
-static ssize_t lock_held_stats_read(struct file *file, char __user *buf,
- size_t size, loff_t *ppos)
+static ssize_t btree_transaction_stats_read(struct file *file, char __user *buf,
+ size_t size, loff_t *ppos)
{
struct dump_iter *i = file->private_data;
struct bch_fs *c = i->c;
prt_printf(&i->buf, "Max mem used: %u", s->max_mem);
prt_newline(&i->buf);
+ prt_printf(&i->buf, "Transaction duration:");
+ prt_newline(&i->buf);
+
+ printbuf_indent_add(&i->buf, 2);
+ bch2_time_stats_to_text(&i->buf, &s->duration);
+ printbuf_indent_sub(&i->buf, 2);
+
if (IS_ENABLED(CONFIG_BCACHEFS_LOCK_TIME_STATS)) {
prt_printf(&i->buf, "Lock hold times:");
prt_newline(&i->buf);
return i->ret;
}
-static const struct file_operations lock_held_stats_op = {
- .owner = THIS_MODULE,
- .open = lock_held_stats_open,
- .release = lock_held_stats_release,
- .read = lock_held_stats_read,
+static const struct file_operations btree_transaction_stats_op = {
+ .owner = THIS_MODULE,
+ .open = btree_transaction_stats_open,
+ .release = btree_transaction_stats_release,
+ .read = btree_transaction_stats_read,
};
static ssize_t bch2_btree_deadlock_read(struct file *file, char __user *buf,
restart:
seqmutex_lock(&c->btree_trans_lock);
list_for_each_entry(trans, &c->btree_trans_list, list) {
- if (trans->locking_wait.task->pid <= i->iter)
+ struct task_struct *task = READ_ONCE(trans->locking_wait.task);
+
+ if (!task || task->pid <= i->iter)
continue;
closure_get(&trans->ref);
bch2_check_for_deadlock(trans, &i->buf);
- i->iter = trans->locking_wait.task->pid;
+ i->iter = task->pid;
closure_put(&trans->ref);
debugfs_create_file("cached_btree_nodes", 0400, c->fs_debug_dir,
c->btree_debug, &cached_btree_nodes_ops);
-#ifdef CONFIG_BCACHEFS_DEBUG_TRANSACTIONS
debugfs_create_file("btree_transactions", 0400, c->fs_debug_dir,
c->btree_debug, &btree_transactions_ops);
-#endif
debugfs_create_file("journal_pins", 0400, c->fs_debug_dir,
c->btree_debug, &journal_pins_ops);
debugfs_create_file("btree_transaction_stats", 0400, c->fs_debug_dir,
- c, &lock_held_stats_op);
+ c, &btree_transaction_stats_op);
debugfs_create_file("btree_deadlock", 0400, c->fs_debug_dir,
c->btree_debug, &btree_deadlock_ops);
bd < c->btree_debug + ARRAY_SIZE(c->btree_debug);
bd++) {
bd->id = bd - c->btree_debug;
- debugfs_create_file(bch2_btree_ids[bd->id],
+ debugfs_create_file(bch2_btree_id_str(bd->id),
0400, c->btree_debug_dir, bd,
&btree_debug_ops);
snprintf(name, sizeof(name), "%s-formats",
- bch2_btree_ids[bd->id]);
+ bch2_btree_id_str(bd->id));
debugfs_create_file(name, 0400, c->btree_debug_dir, bd,
&btree_format_debug_ops);
snprintf(name, sizeof(name), "%s-bfloat-failed",
- bch2_btree_ids[bd->id]);
+ bch2_btree_id_str(bd->id));
debugfs_create_file(name, 0400, c->btree_debug_dir, bd,
&bfloat_failed_debug_ops);
int __init bch2_debug_init(void)
{
- int ret = 0;
-
bch_debug = debugfs_create_dir("bcachefs", NULL);
- return ret;
+ return 0;
}
projects / bcachefs-tools-debian / blobdiff