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Update bcachefs sources to 7c0fe6f104 bcachefs: Fix bch2_fsck_ask_yn()

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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2023-06-04 18:10:23 -04:00
parent 1f78fed469
commit 8642d4ae10
47 changed files with 530 additions and 434 deletions
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2
.bcachefs_revision
View File

@ -1 +1 @@
31c09369cd01b34fb8ba845fa09776576b03a1e2
7c0fe6f104a68065c15b069176247bf5d237b2b3

4
Makefile
View File

@ -208,6 +208,10 @@ update-bcachefs-sources:
git add include/linux/kmemleak.h
cp $(LINUX_DIR)/lib/math/int_sqrt.c linux/
git add linux/int_sqrt.c
cp $(LINUX_DIR)/lib/math/mean_and_variance.c linux/
git add linux/mean_and_variance.c
cp $(LINUX_DIR)/include/linux/mean_and_variance.h include/linux/
git add include/linux/mean_and_variance.h
cp $(LINUX_DIR)/scripts/Makefile.compiler ./
git add Makefile.compiler
$(RM) libbcachefs/*.mod.c

7
include/linux/atomic.h
View File

@ -271,6 +271,13 @@ static inline i_type a_type##_cmpxchg(a_type##_t *v, i_type old, i_type new)\
static inline i_type a_type##_cmpxchg_acquire(a_type##_t *v, i_type old, i_type new)\
{ \
return cmpxchg_acquire(&v->counter, old, new); \
} \
\
static inline bool a_type##_try_cmpxchg_acquire(a_type##_t *v, i_type *old, i_type new)\
{ \
i_type prev = *old; \
*old = cmpxchg_acquire(&v->counter, *old, new); \
return prev == *old; \
}
DEF_ATOMIC_OPS(atomic, int)

5
include/linux/math.h
View File

@ -2,6 +2,11 @@
#ifndef _LINUX_MATH_H
#define _LINUX_MATH_H
#include <linux/kernel.h>
/* abs() */
#include <stdlib.h>
/*
* This looks more complex than it should be. But we need to
* get the type for the ~ right in round_down (it needs to be

15
include/linux/mean_and_variance.h
View File

@ -3,10 +3,9 @@
#define MEAN_AND_VARIANCE_H_
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/limits.h>
#include <linux/math.h>
#include <linux/math64.h>
#include <stdlib.h>
#define SQRT_U64_MAX 4294967295ULL
@ -178,14 +177,12 @@ static inline s64 fast_divpow2(s64 n, u8 d)
*
* see linked pdf equation 12.
*/
static inline struct mean_and_variance
mean_and_variance_update(struct mean_and_variance s, s64 v)
static inline void
mean_and_variance_update(struct mean_and_variance *s, s64 v)
{
return (struct mean_and_variance) {
.n = s.n + 1,
.sum = s.sum + v,
.sum_squares = u128_add(s.sum_squares, u128_square(abs(v))),
};
s->n++;
s->sum += v;
s->sum_squares = u128_add(s->sum_squares, u128_square(abs(v)));
}
s64 mean_and_variance_get_mean(struct mean_and_variance s);

2
include/linux/sched.h
View File

@ -117,7 +117,7 @@ static inline void put_task_struct(struct task_struct *t)
__put_task_struct(t);
}
#define cond_resched()
static inline void cond_resched(void) {}
#define need_resched() 0
void schedule(void);

29
libbcachefs/acl.c
View File

@ -35,12 +35,14 @@ static inline int acl_to_xattr_type(int type)
/*
* Convert from filesystem to in-memory representation.
*/
static struct posix_acl *bch2_acl_from_disk(const void *value, size_t size)
static struct posix_acl *bch2_acl_from_disk(struct btree_trans *trans,
const void *value, size_t size)
{
const void *p, *end = value + size;
struct posix_acl *acl;
struct posix_acl_entry *out;
unsigned count = 0;
int ret;
if (!value)
return NULL;
@ -81,9 +83,14 @@ static struct posix_acl *bch2_acl_from_disk(const void *value, size_t size)
if (!count)
return NULL;
acl = posix_acl_alloc(count, GFP_KERNEL);
acl = allocate_dropping_locks(trans, ret,
posix_acl_alloc(count, _gfp));
if (!acl)
return ERR_PTR(-ENOMEM);
if (ret) {
kfree(acl);
return ERR_PTR(ret);
}
out = acl->a_entries;
@ -234,9 +241,7 @@ retry:
&X_SEARCH(acl_to_xattr_type(type), "", 0),
0);
if (ret) {
if (bch2_err_matches(ret, BCH_ERR_transaction_restart))
goto retry;
if (ret != -ENOENT)
if (!bch2_err_matches(ret, ENOENT))
acl = ERR_PTR(ret);
goto out;
}
@ -249,12 +254,15 @@ retry:
}
xattr = bkey_s_c_to_xattr(k);
acl = bch2_acl_from_disk(xattr_val(xattr.v),
acl = bch2_acl_from_disk(&trans, xattr_val(xattr.v),
le16_to_cpu(xattr.v->x_val_len));
if (!IS_ERR(acl))
set_cached_acl(&inode->v, type, acl);
out:
if (bch2_err_matches(PTR_ERR_OR_ZERO(acl), BCH_ERR_transaction_restart))
goto retry;
bch2_trans_iter_exit(&trans, &iter);
bch2_trans_exit(&trans);
return acl;
@ -287,7 +295,7 @@ int bch2_set_acl_trans(struct btree_trans *trans, subvol_inum inum,
inum, &search);
}
return ret == -ENOENT ? 0 : ret;
return bch2_err_matches(ret, ENOENT) ? 0 : ret;
}
int bch2_set_acl(struct mnt_idmap *idmap,
@ -368,20 +376,21 @@ int bch2_acl_chmod(struct btree_trans *trans, subvol_inum inum,
&X_SEARCH(KEY_TYPE_XATTR_INDEX_POSIX_ACL_ACCESS, "", 0),
BTREE_ITER_INTENT);
if (ret)
return ret == -ENOENT ? 0 : ret;
return bch2_err_matches(ret, ENOENT) ? 0 : ret;
k = bch2_btree_iter_peek_slot(&iter);
xattr = bkey_s_c_to_xattr(k);
if (ret)
goto err;
acl = bch2_acl_from_disk(xattr_val(xattr.v),
acl = bch2_acl_from_disk(trans, xattr_val(xattr.v),
le16_to_cpu(xattr.v->x_val_len));
ret = PTR_ERR_OR_ZERO(acl);
if (IS_ERR_OR_NULL(acl))
goto err;
ret = __posix_acl_chmod(&acl, GFP_KERNEL, mode);
ret = allocate_dropping_locks_errcode(trans,
__posix_acl_chmod(&acl, _gfp, mode));
if (ret)
goto err;

1
libbcachefs/bcachefs.h
View File

@ -963,7 +963,6 @@ struct bch_fs {
struct bio_set ec_bioset;
/* REFLINK */
u64 reflink_hint;
reflink_gc_table reflink_gc_table;
size_t reflink_gc_nr;

26
libbcachefs/btree_cache.c
View File

@ -128,9 +128,6 @@ static struct btree *__btree_node_mem_alloc(struct bch_fs *c, gfp_t gfp)
return NULL;
bkey_btree_ptr_init(&b->key);
#ifdef CONFIG_DEBUG_LOCK_ALLOC
lockdep_set_no_check_recursion(&b->c.lock.dep_map);
#endif
INIT_LIST_HEAD(&b->list);
INIT_LIST_HEAD(&b->write_blocked);
b->byte_order = ilog2(btree_bytes(c));
@ -639,9 +636,10 @@ struct btree *bch2_btree_node_mem_alloc(struct btree_trans *trans, bool pcpu_rea
goto got_node;
}
b = __btree_node_mem_alloc(c, __GFP_NOWARN);
b = __btree_node_mem_alloc(c, GFP_NOWAIT|__GFP_NOWARN);
if (!b) {
mutex_unlock(&bc->lock);
bch2_trans_unlock(trans);
b = __btree_node_mem_alloc(c, GFP_KERNEL);
if (!b)
goto err;
@ -670,8 +668,11 @@ got_node:
mutex_unlock(&bc->lock);
if (btree_node_data_alloc(c, b, __GFP_NOWARN|GFP_KERNEL))
if (btree_node_data_alloc(c, b, GFP_NOWAIT|__GFP_NOWARN)) {
bch2_trans_unlock(trans);
if (btree_node_data_alloc(c, b, GFP_KERNEL|__GFP_NOWARN))
goto err;
}
mutex_lock(&bc->lock);
bc->used++;
@ -864,6 +865,7 @@ static struct btree *__bch2_btree_node_get(struct btree_trans *trans, struct btr
struct btree_cache *bc = &c->btree_cache;
struct btree *b;
struct bset_tree *t;
bool need_relock = false;
int ret;
EBUG_ON(level >= BTREE_MAX_DEPTH);
@ -877,6 +879,7 @@ retry:
*/
b = bch2_btree_node_fill(trans, path, k, path->btree_id,
level, lock_type, true);
need_relock = true;
/* We raced and found the btree node in the cache */
if (!b)
@ -915,6 +918,7 @@ retry:
six_unlock_type(&b->c.lock, lock_type);
bch2_trans_unlock(trans);
need_relock = true;
bch2_btree_node_wait_on_read(b);
@ -922,19 +926,19 @@ retry:
* should_be_locked is not set on this path yet, so we need to
* relock it specifically:
*/
if (trans) {
if (!six_relock_type(&b->c.lock, lock_type, seq))
goto retry;
}
if (unlikely(need_relock)) {
int ret = bch2_trans_relock(trans) ?:
bch2_btree_path_relock_intent(trans, path);
if (ret) {
BUG_ON(!trans->restarted);
six_unlock_type(&b->c.lock, lock_type);
return ERR_PTR(ret);
}
}
if (!six_relock_type(&b->c.lock, lock_type, seq))
goto retry;
}
prefetch(b->aux_data);
for_each_bset(b, t) {

8
libbcachefs/btree_io.c
View File

@ -117,7 +117,7 @@ static void *btree_bounce_alloc(struct bch_fs *c, size_t size,
p = vpmalloc(size, __GFP_NOWARN|GFP_NOWAIT);
if (!p) {
*used_mempool = true;
p = mempool_alloc(&c->btree_bounce_pool, GFP_NOIO);
p = mempool_alloc(&c->btree_bounce_pool, GFP_NOFS);
}
memalloc_nofs_restore(flags);
return p;
@ -937,7 +937,7 @@ int bch2_btree_node_read_done(struct bch_fs *c, struct bch_dev *ca,
/* We might get called multiple times on read retry: */
b->written = 0;
iter = mempool_alloc(&c->fill_iter, GFP_NOIO);
iter = mempool_alloc(&c->fill_iter, GFP_NOFS);
sort_iter_init(iter, b);
iter->size = (btree_blocks(c) + 1) * 2;
@ -1580,7 +1580,7 @@ void bch2_btree_node_read(struct bch_fs *c, struct btree *b,
bio = bio_alloc_bioset(NULL,
buf_pages(b->data, btree_bytes(c)),
REQ_OP_READ|REQ_SYNC|REQ_META,
GFP_NOIO,
GFP_NOFS,
&c->btree_bio);
rb = container_of(bio, struct btree_read_bio, bio);
rb->c = c;
@ -2077,7 +2077,7 @@ do_write:
wbio = container_of(bio_alloc_bioset(NULL,
buf_pages(data, sectors_to_write << 9),
REQ_OP_WRITE|REQ_META,
GFP_NOIO,
GFP_NOFS,
&c->btree_bio),
struct btree_write_bio, wbio.bio);
wbio_init(&wbio->wbio.bio);

35
libbcachefs/btree_iter.c
View File

@ -41,14 +41,11 @@ static struct btree_path *btree_path_alloc(struct btree_trans *, struct btree_pa
*/
static inline int bch2_trans_cond_resched(struct btree_trans *trans)
{
if (need_resched() || race_fault()) {
bch2_trans_unlock(trans);
schedule();
return bch2_trans_relock(trans);
} else {
if (need_resched() || race_fault())
return drop_locks_do(trans, (schedule(), 0));
else
return 0;
}
}
static inline int __btree_path_cmp(const struct btree_path *l,
enum btree_id r_btree_id,
@ -2793,6 +2790,7 @@ void *__bch2_trans_kmalloc(struct btree_trans *trans, size_t size)
unsigned new_top = trans->mem_top + size;
size_t old_bytes = trans->mem_bytes;
size_t new_bytes = roundup_pow_of_two(new_top);
int ret;
void *new_mem;
void *p;
@ -2800,7 +2798,11 @@ void *__bch2_trans_kmalloc(struct btree_trans *trans, size_t size)
WARN_ON_ONCE(new_bytes > BTREE_TRANS_MEM_MAX);
new_mem = krealloc(trans->mem, new_bytes, GFP_NOFS);
new_mem = krealloc(trans->mem, new_bytes, GFP_NOWAIT|__GFP_NOWARN);
if (unlikely(!new_mem)) {
bch2_trans_unlock(trans);
new_mem = krealloc(trans->mem, new_bytes, GFP_KERNEL);
if (!new_mem && new_bytes <= BTREE_TRANS_MEM_MAX) {
new_mem = mempool_alloc(&trans->c->btree_trans_mem_pool, GFP_KERNEL);
new_bytes = BTREE_TRANS_MEM_MAX;
@ -2813,6 +2815,14 @@ void *__bch2_trans_kmalloc(struct btree_trans *trans, size_t size)
trans->mem = new_mem;
trans->mem_bytes = new_bytes;
ret = bch2_trans_relock(trans);
if (ret)
return ERR_PTR(ret);
}
trans->mem = new_mem;
trans->mem_bytes = new_bytes;
if (old_bytes) {
trace_and_count(trans->c, trans_restart_mem_realloced, trans, _RET_IP_, new_bytes);
return ERR_PTR(btree_trans_restart(trans, BCH_ERR_transaction_restart_mem_realloced));
@ -2879,11 +2889,8 @@ u32 bch2_trans_begin(struct btree_trans *trans)
if (!trans->restarted &&
(need_resched() ||
local_clock() - trans->last_begin_time > BTREE_TRANS_MAX_LOCK_HOLD_TIME_NS)) {
bch2_trans_unlock(trans);
cond_resched();
bch2_trans_relock(trans);
}
local_clock() - trans->last_begin_time > BTREE_TRANS_MAX_LOCK_HOLD_TIME_NS))
drop_locks_do(trans, (cond_resched(), 0));
if (unlikely(time_after(jiffies, trans->srcu_lock_time + msecs_to_jiffies(10))))
bch2_trans_reset_srcu_lock(trans);
@ -3110,7 +3117,7 @@ void bch2_btree_trans_to_text(struct printbuf *out, struct btree_trans *trans)
struct btree_path *path;
struct btree_bkey_cached_common *b;
static char lock_types[] = { 'r', 'i', 'w' };
unsigned l;
unsigned l, idx;
if (!out->nr_tabstops) {
printbuf_tabstop_push(out, 16);
@ -3119,7 +3126,7 @@ void bch2_btree_trans_to_text(struct printbuf *out, struct btree_trans *trans)
prt_printf(out, "%i %s\n", trans->locking_wait.task->pid, trans->fn);
trans_for_each_path(trans, path) {
trans_for_each_path_safe(trans, path, idx) {
if (!path->nodes_locked)
continue;

59
libbcachefs/btree_iter.h
View File

@ -89,6 +89,32 @@ __trans_next_path(struct btree_trans *trans, unsigned idx)
#define trans_for_each_path(_trans, _path) \
trans_for_each_path_from(_trans, _path, 0)
static inline struct btree_path *
__trans_next_path_safe(struct btree_trans *trans, unsigned *idx)
{
u64 l;
if (*idx == BTREE_ITER_MAX)
return NULL;
l = trans->paths_allocated >> *idx;
if (!l)
return NULL;
*idx += __ffs64(l);
EBUG_ON(*idx >= BTREE_ITER_MAX);
return &trans->paths[*idx];
}
/*
* This version is intended to be safe for use on a btree_trans that is owned by
* another thread, for bch2_btree_trans_to_text();
*/
#define trans_for_each_path_safe(_trans, _path, _idx) \
for (_idx = 0; \
(_path = __trans_next_path_safe((_trans), &_idx)); \
_idx++)
static inline struct btree_path *next_btree_path(struct btree_trans *trans, struct btree_path *path)
{
unsigned idx = path ? path->sorted_idx + 1 : 0;
@ -487,7 +513,7 @@ static inline struct bkey_s_c __bch2_bkey_get_iter(struct btree_trans *trans,
k = bch2_btree_iter_peek_slot(iter);
if (!bkey_err(k) && type && k.k->type != type)
k = bkey_s_c_err(-ENOENT);
k = bkey_s_c_err(-BCH_ERR_ENOENT_bkey_type_mismatch);
if (unlikely(bkey_err(k)))
bch2_trans_iter_exit(trans, iter);
return k;
@ -825,6 +851,37 @@ __bch2_btree_iter_peek_upto_and_restart(struct btree_trans *trans,
!((_ret) = bkey_err(_k)) && (_k).k; \
bch2_btree_iter_advance(&(_iter)))
#define drop_locks_do(_trans, _do) \
({ \
bch2_trans_unlock(_trans); \
_do ?: bch2_trans_relock(_trans); \
})
#define allocate_dropping_locks_errcode(_trans, _do) \
({ \
gfp_t _gfp = GFP_NOWAIT|__GFP_NOWARN; \
int _ret = _do; \
\
if (bch2_err_matches(_ret, ENOMEM)) { \
_gfp = GFP_KERNEL; \
_ret = drop_locks_do(trans, _do); \
} \
_ret; \
})
#define allocate_dropping_locks(_trans, _ret, _do) \
({ \
gfp_t _gfp = GFP_NOWAIT|__GFP_NOWARN; \
typeof(_do) _p = _do; \
\
_ret = 0; \
if (unlikely(!_p)) { \
_gfp = GFP_KERNEL; \
_ret = drop_locks_do(trans, ((_p = _do), 0)); \
} \
_p; \
})
/* new multiple iterator interface: */
void bch2_trans_updates_to_text(struct printbuf *, struct btree_trans *);

13
libbcachefs/btree_key_cache.c
View File

@ -265,15 +265,8 @@ bkey_cached_alloc(struct btree_trans *trans, struct btree_path *path,
return ck;
}
ck = kmem_cache_zalloc(bch2_key_cache, GFP_NOWAIT|__GFP_NOWARN);
if (likely(ck))
goto init;
bch2_trans_unlock(trans);
ck = kmem_cache_zalloc(bch2_key_cache, GFP_KERNEL);
ret = bch2_trans_relock(trans);
ck = allocate_dropping_locks(trans, ret,
kmem_cache_zalloc(bch2_key_cache, _gfp));
if (ret) {
kmem_cache_free(bch2_key_cache, ck);
return ERR_PTR(ret);
@ -281,7 +274,7 @@ bkey_cached_alloc(struct btree_trans *trans, struct btree_path *path,
if (!ck)
return NULL;
init:
INIT_LIST_HEAD(&ck->list);
bch2_btree_lock_init(&ck->c, pcpu_readers ? SIX_LOCK_INIT_PCPU : 0);

8
libbcachefs/btree_locking.c
View File

@ -10,6 +10,9 @@ void bch2_btree_lock_init(struct btree_bkey_cached_common *b,
enum six_lock_init_flags flags)
{
__six_lock_init(&b->lock, "b->c.lock", &bch2_btree_node_lock_key, flags);
#ifdef CONFIG_DEBUG_LOCK_ALLOC
lockdep_set_no_check_recursion(&b->lock.dep_map);
#endif
}
#ifdef CONFIG_LOCKDEP
@ -738,11 +741,8 @@ bool bch2_trans_locked(struct btree_trans *trans)
int __bch2_trans_mutex_lock(struct btree_trans *trans,
struct mutex *lock)
{
int ret;
int ret = drop_locks_do(trans, (mutex_lock(lock), 0));
bch2_trans_unlock(trans);
mutex_lock(lock);
ret = bch2_trans_relock(trans);
if (ret)
mutex_unlock(lock);
return ret;

23
libbcachefs/btree_update.h
View File

@ -4,6 +4,7 @@
#include "btree_iter.h"
#include "journal.h"
#include "journal.h"
struct bch_fs;
struct btree;
@ -83,6 +84,28 @@ int bch2_btree_node_update_key(struct btree_trans *, struct btree_iter *,
int bch2_btree_node_update_key_get_iter(struct btree_trans *,
struct btree *, struct bkey_i *, bool);
int __bch2_insert_snapshot_whiteouts(struct btree_trans *, enum btree_id,
struct bpos, struct bpos);
/*
* For use when splitting extents in existing snapshots:
*
* If @old_pos is an interior snapshot node, iterate over descendent snapshot
* nodes: for every descendent snapshot in whiche @old_pos is overwritten and
* not visible, emit a whiteout at @new_pos.
*/
static inline int bch2_insert_snapshot_whiteouts(struct btree_trans *trans,
enum btree_id btree,
struct bpos old_pos,
struct bpos new_pos)
{
if (!btree_type_has_snapshots(btree) ||
bkey_eq(old_pos, new_pos))
return 0;
return __bch2_insert_snapshot_whiteouts(trans, btree, old_pos, new_pos);
}
int bch2_trans_update_extent(struct btree_trans *, struct btree_iter *,
struct bkey_i *, enum btree_update_flags);

22
libbcachefs/btree_update_interior.c
View File

@ -1083,16 +1083,14 @@ bch2_btree_update_start(struct btree_trans *trans, struct btree_path *path,
if (flags & BTREE_INSERT_GC_LOCK_HELD)
lockdep_assert_held(&c->gc_lock);
else if (!down_read_trylock(&c->gc_lock)) {
bch2_trans_unlock(trans);
down_read(&c->gc_lock);
ret = bch2_trans_relock(trans);
ret = drop_locks_do(trans, (down_read(&c->gc_lock), 0));
if (ret) {
up_read(&c->gc_lock);
return ERR_PTR(ret);
}
}
as = mempool_alloc(&c->btree_interior_update_pool, GFP_NOIO);
as = mempool_alloc(&c->btree_interior_update_pool, GFP_NOFS);
memset(as, 0, sizeof(*as));
closure_init(&as->cl, NULL);
as->c = c;
@ -1128,23 +1126,19 @@ bch2_btree_update_start(struct btree_trans *trans, struct btree_path *path,
BTREE_UPDATE_JOURNAL_RES,
journal_flags|JOURNAL_RES_GET_NONBLOCK);
if (ret) {
bch2_trans_unlock(trans);
if (flags & BTREE_INSERT_JOURNAL_RECLAIM) {
ret = -BCH_ERR_journal_reclaim_would_deadlock;
goto err;
}
ret = bch2_journal_preres_get(&c->journal, &as->journal_preres,
ret = drop_locks_do(trans,
bch2_journal_preres_get(&c->journal, &as->journal_preres,
BTREE_UPDATE_JOURNAL_RES,
journal_flags);
if (ret) {
journal_flags));
if (ret == -BCH_ERR_journal_preres_get_blocked) {
trace_and_count(c, trans_restart_journal_preres_get, trans, _RET_IP_, journal_flags);
ret = btree_trans_restart(trans, BCH_ERR_transaction_restart_journal_preres_get);
goto err;
}
ret = bch2_trans_relock(trans);
if (ret)
goto err;
}
@ -2256,9 +2250,7 @@ int bch2_btree_node_update_key(struct btree_trans *trans, struct btree_iter *ite
if (btree_ptr_hash_val(new_key) != b->hash_val) {
ret = bch2_btree_cache_cannibalize_lock(c, &cl);
if (ret) {
bch2_trans_unlock(trans);
closure_sync(&cl);
ret = bch2_trans_relock(trans);
ret = drop_locks_do(trans, (closure_sync(&cl), 0));
if (ret)
return ret;
}

173
libbcachefs/btree_update_leaf.c
View File

@ -316,25 +316,11 @@ static noinline int
bch2_trans_journal_preres_get_cold(struct btree_trans *trans, unsigned flags,
unsigned long trace_ip)
{
struct bch_fs *c = trans->c;
int ret;
bch2_trans_unlock(trans);
ret = bch2_journal_preres_get(&c->journal,
return drop_locks_do(trans,
bch2_journal_preres_get(&trans->c->journal,
&trans->journal_preres,
trans->journal_preres_u64s,
(flags & JOURNAL_WATERMARK_MASK));
if (ret)
return ret;
ret = bch2_trans_relock(trans);
if (ret) {
trace_and_count(c, trans_restart_journal_preres_get, trans, trace_ip, 0);
return ret;
}
return 0;
(flags & JOURNAL_WATERMARK_MASK)));
}
static __always_inline int bch2_trans_journal_res_get(struct btree_trans *trans,
@ -961,48 +947,27 @@ int bch2_trans_commit_error(struct btree_trans *trans, unsigned flags,
trace_and_count(c, trans_restart_btree_node_split, trans, trace_ip, i->path);
break;
case -BCH_ERR_btree_insert_need_mark_replicas:
bch2_trans_unlock(trans);
ret = bch2_replicas_delta_list_mark(c, trans->fs_usage_deltas);
if (ret)
break;
ret = bch2_trans_relock(trans);
if (ret)
trace_and_count(c, trans_restart_mark_replicas, trans, trace_ip);
ret = drop_locks_do(trans,
bch2_replicas_delta_list_mark(c, trans->fs_usage_deltas));
break;
case -BCH_ERR_journal_res_get_blocked:
bch2_trans_unlock(trans);
if ((flags & BTREE_INSERT_JOURNAL_RECLAIM) &&
!(flags & JOURNAL_WATERMARK_reserved)) {
ret = -BCH_ERR_journal_reclaim_would_deadlock;
break;
}
ret = bch2_trans_journal_res_get(trans,
ret = drop_locks_do(trans,
bch2_trans_journal_res_get(trans,
(flags & JOURNAL_WATERMARK_MASK)|
JOURNAL_RES_GET_CHECK);
if (ret)
break;
ret = bch2_trans_relock(trans);
if (ret)
trace_and_count(c, trans_restart_journal_res_get, trans, trace_ip);
JOURNAL_RES_GET_CHECK));
break;
case -BCH_ERR_btree_insert_need_journal_reclaim:
bch2_trans_unlock(trans);
trace_and_count(c, trans_blocked_journal_reclaim, trans, trace_ip);
wait_event_freezable(c->journal.reclaim_wait,
(ret = journal_reclaim_wait_done(c)));
if (ret < 0)
break;
ret = bch2_trans_relock(trans);
if (ret)
trace_and_count(c, trans_restart_journal_reclaim, trans, trace_ip);
ret = drop_locks_do(trans,
(wait_event_freezable(c->journal.reclaim_wait,
(ret = journal_reclaim_wait_done(c))), ret));
break;
case -BCH_ERR_btree_insert_need_flush_buffer: {
struct btree_write_buffer *wb = &c->btree_write_buffer;
@ -1010,21 +975,21 @@ int bch2_trans_commit_error(struct btree_trans *trans, unsigned flags,
ret = 0;
if (wb->state.nr > wb->size * 3 / 4) {
bch2_trans_reset_updates(trans);
bch2_trans_unlock(trans);
mutex_lock(&wb->flush_lock);
if (wb->state.nr > wb->size * 3 / 4)
if (wb->state.nr > wb->size * 3 / 4) {
bch2_trans_begin(trans);
ret = __bch2_btree_write_buffer_flush(trans,
flags|BTREE_INSERT_NOCHECK_RW, true);
else
mutex_unlock(&wb->flush_lock);
if (!ret) {
trace_and_count(c, trans_restart_write_buffer_flush, trans, _THIS_IP_);
ret = btree_trans_restart(trans, BCH_ERR_transaction_restart_write_buffer_flush);
}
} else {
mutex_unlock(&wb->flush_lock);
ret = bch2_trans_relock(trans);
}
}
break;
}
@ -1053,10 +1018,7 @@ bch2_trans_commit_get_rw_cold(struct btree_trans *trans, unsigned flags)
test_bit(BCH_FS_STARTED, &c->flags))
return -BCH_ERR_erofs_trans_commit;
bch2_trans_unlock(trans);
ret = bch2_fs_read_write_early(c) ?:
bch2_trans_relock(trans);
ret = drop_locks_do(trans, bch2_fs_read_write_early(c));
if (ret)
return ret;
@ -1343,6 +1305,97 @@ static int need_whiteout_for_snapshot(struct btree_trans *trans,
return ret;
}
static int pos_overwritten_in_snapshot(struct btree_trans *trans, enum btree_id btree,
struct bpos pos, u32 snapshot)
{
struct bch_fs *c = trans->c;
struct btree_iter iter;
struct bkey_s_c k;
int ret;
for_each_btree_key_norestart(trans, iter,
btree, SPOS(pos.inode, pos.offset, snapshot),
BTREE_ITER_ALL_SNAPSHOTS|
BTREE_ITER_NOPRESERVE, k, ret) {
if (bpos_ge(k.k->p, pos))
break;
if (bch2_snapshot_is_ancestor(c, k.k->p.snapshot, pos.snapshot)) {
ret = 1;
break;
}
}
bch2_trans_iter_exit(trans, &iter);
return ret;
}
int __bch2_insert_snapshot_whiteouts(struct btree_trans *trans,
enum btree_id btree,
struct bpos old_pos,
struct bpos new_pos)
{
struct bch_fs *c = trans->c;
struct btree_iter old_iter, new_iter;
struct bkey_s_c k;
snapshot_id_list s;
struct bkey_i *update;
int ret;
if (!bch2_snapshot_has_children(c, old_pos.snapshot))
return 0;
darray_init(&s);
bch2_trans_iter_init(trans, &old_iter, btree, old_pos,
BTREE_ITER_NOT_EXTENTS|
BTREE_ITER_ALL_SNAPSHOTS);
while ((k = bch2_btree_iter_prev(&old_iter)).k &&
!(ret = bkey_err(k)) &&
bkey_eq(old_pos, k.k->p)) {
if (!bch2_snapshot_is_ancestor(c, k.k->p.snapshot, old_pos.snapshot) ||
snapshot_list_has_ancestor(c, &s, k.k->p.snapshot))
continue;
ret = pos_overwritten_in_snapshot(trans, btree,
new_pos, k.k->p.snapshot);
if (ret < 0)
break;
if (!ret) {
struct bpos whiteout_pos =
SPOS(new_pos.inode, new_pos.offset, k.k->p.snapshot);;
bch2_trans_iter_init(trans, &new_iter, btree, whiteout_pos,
BTREE_ITER_NOT_EXTENTS|
BTREE_ITER_INTENT);
update = bch2_trans_kmalloc(trans, sizeof(struct bkey_i));
ret = PTR_ERR_OR_ZERO(update);
if (ret)
break;
bkey_init(&update->k);
update->k.p = whiteout_pos;
update->k.type = KEY_TYPE_whiteout;
ret = bch2_btree_iter_traverse(&new_iter) ?:
bch2_trans_update(trans, &new_iter, update,
BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE);
bch2_trans_iter_exit(trans, &new_iter);
}
ret = snapshot_list_add(c, &s, k.k->p.snapshot);
if (ret)
break;
}
bch2_trans_iter_exit(trans, &old_iter);
darray_exit(&s);
return ret;
}
int bch2_trans_update_extent(struct btree_trans *trans,
struct btree_iter *orig_iter,
struct bkey_i *insert,
@ -1396,7 +1449,9 @@ int bch2_trans_update_extent(struct btree_trans *trans,
bch2_cut_back(start, update);
ret = bch2_btree_insert_nonextent(trans, btree_id, update,
ret = bch2_insert_snapshot_whiteouts(trans, btree_id,
k.k->p, update->k.p) ?:
bch2_btree_insert_nonextent(trans, btree_id, update,
BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE|flags);
if (ret)
goto err;
@ -1411,7 +1466,9 @@ int bch2_trans_update_extent(struct btree_trans *trans,
bch2_cut_front(start, update);
bch2_cut_back(insert->k.p, update);
ret = bch2_btree_insert_nonextent(trans, btree_id, update,
ret = bch2_insert_snapshot_whiteouts(trans, btree_id,
k.k->p, update->k.p) ?:
bch2_btree_insert_nonextent(trans, btree_id, update,
BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE|flags);
if (ret)
goto err;

81
libbcachefs/buckets.c
View File

@ -140,7 +140,7 @@ struct bch_fs_usage_online *bch2_fs_usage_read(struct bch_fs *c)
unsigned nr_replicas = READ_ONCE(c->replicas.nr);
unsigned seq, i;
retry:
ret = kmalloc(__fs_usage_online_u64s(nr_replicas) * sizeof(u64), GFP_NOFS);
ret = kmalloc(__fs_usage_online_u64s(nr_replicas) * sizeof(u64), GFP_KERNEL);
if (unlikely(!ret))
return NULL;
@ -423,8 +423,8 @@ static inline int update_cached_sectors(struct bch_fs *c,
return update_replicas(c, k, &r.e, sectors, journal_seq, gc);
}
static struct replicas_delta_list *
replicas_deltas_realloc(struct btree_trans *trans, unsigned more)
static int __replicas_deltas_realloc(struct btree_trans *trans, unsigned more,
gfp_t gfp)
{
struct replicas_delta_list *d = trans->fs_usage_deltas;
unsigned new_size = d ? (d->size + more) * 2 : 128;
@ -433,12 +433,16 @@ replicas_deltas_realloc(struct btree_trans *trans, unsigned more)
WARN_ON_ONCE(alloc_size > REPLICAS_DELTA_LIST_MAX);
if (!d || d->used + more > d->size) {
d = krealloc(d, alloc_size, GFP_NOIO|__GFP_ZERO);
d = krealloc(d, alloc_size, gfp|__GFP_ZERO);
BUG_ON(!d && alloc_size > REPLICAS_DELTA_LIST_MAX);
if (unlikely(!d)) {
if (alloc_size > REPLICAS_DELTA_LIST_MAX)
return -ENOMEM;
d = mempool_alloc(&trans->c->replicas_delta_pool, gfp);
if (!d)
return -ENOMEM;
if (!d) {
d = mempool_alloc(&trans->c->replicas_delta_pool, GFP_NOIO);
memset(d, 0, REPLICAS_DELTA_LIST_MAX);
if (trans->fs_usage_deltas)
@ -452,39 +456,51 @@ replicas_deltas_realloc(struct btree_trans *trans, unsigned more)
d->size = new_size;
trans->fs_usage_deltas = d;
}
return d;
return 0;
}
static inline void update_replicas_list(struct btree_trans *trans,
static int replicas_deltas_realloc(struct btree_trans *trans, unsigned more)
{
return allocate_dropping_locks_errcode(trans,
__replicas_deltas_realloc(trans, more, _gfp));
}
static inline int update_replicas_list(struct btree_trans *trans,
struct bch_replicas_entry *r,
s64 sectors)
{
struct replicas_delta_list *d;
struct replicas_delta *n;
unsigned b;
int ret;
if (!sectors)
return;
return 0;
b = replicas_entry_bytes(r) + 8;
d = replicas_deltas_realloc(trans, b);
ret = replicas_deltas_realloc(trans, b);
if (ret)
return ret;
d = trans->fs_usage_deltas;
n = (void *) d->d + d->used;
n->delta = sectors;
memcpy((void *) n + offsetof(struct replicas_delta, r),
r, replicas_entry_bytes(r));
bch2_replicas_entry_sort(&n->r);
d->used += b;
return 0;
}
static inline void update_cached_sectors_list(struct btree_trans *trans,
static inline int update_cached_sectors_list(struct btree_trans *trans,
unsigned dev, s64 sectors)
{
struct bch_replicas_padded r;
bch2_replicas_entry_cached(&r.e, dev);
update_replicas_list(trans, &r.e, sectors);
return update_replicas_list(trans, &r.e, sectors);
}
int bch2_mark_alloc(struct btree_trans *trans,
@ -1455,7 +1471,7 @@ static int bch2_trans_mark_stripe_ptr(struct btree_trans *trans,
BTREE_ITER_WITH_UPDATES, stripe);
ret = PTR_ERR_OR_ZERO(s);
if (unlikely(ret)) {
bch2_trans_inconsistent_on(ret == -ENOENT, trans,
bch2_trans_inconsistent_on(bch2_err_matches(ret, ENOENT), trans,
"pointer to nonexistent stripe %llu",
(u64) p.ec.idx);
goto err;
@ -1475,7 +1491,7 @@ static int bch2_trans_mark_stripe_ptr(struct btree_trans *trans,
bch2_bkey_to_replicas(&r.e, bkey_i_to_s_c(&s->k_i));
r.e.data_type = data_type;
update_replicas_list(trans, &r.e, sectors);
ret = update_replicas_list(trans, &r.e, sectors);
err:
bch2_trans_iter_exit(trans, &iter);
return ret;
@ -1502,7 +1518,7 @@ int bch2_trans_mark_extent(struct btree_trans *trans,
: k.k->size;
s64 dirty_sectors = 0;
bool stale;
int ret;
int ret = 0;
r.e.data_type = data_type;
r.e.nr_devs = 0;
@ -1521,9 +1537,12 @@ int bch2_trans_mark_extent(struct btree_trans *trans,
stale = ret > 0;
if (p.ptr.cached) {
if (!stale)
update_cached_sectors_list(trans, p.ptr.dev,
if (!stale) {
ret = update_cached_sectors_list(trans, p.ptr.dev,
disk_sectors);
if (ret)
return ret;
}
} else if (!p.has_ec) {
dirty_sectors += disk_sectors;
r.e.devs[r.e.nr_devs++] = p.ptr.dev;
@ -1538,9 +1557,9 @@ int bch2_trans_mark_extent(struct btree_trans *trans,
}
if (r.e.nr_devs)
update_replicas_list(trans, &r.e, dirty_sectors);
ret = update_replicas_list(trans, &r.e, dirty_sectors);
return 0;
return ret;
}
static int bch2_trans_mark_stripe_bucket(struct btree_trans *trans,
@ -1657,14 +1676,18 @@ int bch2_trans_mark_stripe(struct btree_trans *trans,
s64 sectors = le16_to_cpu(new_s->sectors);
bch2_bkey_to_replicas(&r.e, bkey_i_to_s_c(new));
update_replicas_list(trans, &r.e, sectors * new_s->nr_redundant);
ret = update_replicas_list(trans, &r.e, sectors * new_s->nr_redundant);
if (ret)
return ret;
}
if (old_s) {
s64 sectors = -((s64) le16_to_cpu(old_s->sectors));
bch2_bkey_to_replicas(&r.e, old);
update_replicas_list(trans, &r.e, sectors * old_s->nr_redundant);
ret = update_replicas_list(trans, &r.e, sectors * old_s->nr_redundant);
if (ret)
return ret;
}
for (i = 0; i < nr_blocks; i++) {
@ -1701,8 +1724,12 @@ int bch2_trans_mark_inode(struct btree_trans *trans,
int nr = bkey_is_inode(&new->k) - bkey_is_inode(old.k);
if (nr) {
struct replicas_delta_list *d =
replicas_deltas_realloc(trans, 0);
int ret = replicas_deltas_realloc(trans, 0);
struct replicas_delta_list *d = trans->fs_usage_deltas;
if (ret)
return ret;
d->nr_inodes += nr;
}
@ -1721,13 +1748,17 @@ int bch2_trans_mark_reservation(struct btree_trans *trans,
unsigned replicas = bkey_s_c_to_reservation(k).v->nr_replicas;
s64 sectors = (s64) k.k->size;
struct replicas_delta_list *d;
int ret;
if (flags & BTREE_TRIGGER_OVERWRITE)
sectors = -sectors;
sectors *= replicas;
d = replicas_deltas_realloc(trans, 0);
ret = replicas_deltas_realloc(trans, 0);
if (ret)
return ret;
d = trans->fs_usage_deltas;
replicas = clamp_t(unsigned, replicas, 1,
ARRAY_SIZE(d->persistent_reserved));

2
libbcachefs/chardev.c
View File

@ -578,7 +578,7 @@ static long bch2_ioctl_disk_get_idx(struct bch_fs *c,
return i;
}
return -ENOENT;
return -BCH_ERR_ENOENT_dev_idx_not_found;
}
static long bch2_ioctl_disk_resize(struct bch_fs *c,

12
libbcachefs/compress.c
View File

@ -28,11 +28,11 @@ static struct bbuf __bounce_alloc(struct bch_fs *c, unsigned size, int rw)
BUG_ON(size > c->opts.encoded_extent_max);
b = kmalloc(size, GFP_NOIO|__GFP_NOWARN);
b = kmalloc(size, GFP_NOFS|__GFP_NOWARN);
if (b)
return (struct bbuf) { .b = b, .type = BB_KMALLOC, .rw = rw };
b = mempool_alloc(&c->compression_bounce[rw], GFP_NOIO);
b = mempool_alloc(&c->compression_bounce[rw], GFP_NOFS);
if (b)
return (struct bbuf) { .b = b, .type = BB_MEMPOOL, .rw = rw };
@ -94,7 +94,7 @@ static struct bbuf __bio_map_or_bounce(struct bch_fs *c, struct bio *bio,
BUG_ON(DIV_ROUND_UP(start.bi_size, PAGE_SIZE) > nr_pages);
pages = nr_pages > ARRAY_SIZE(stack_pages)
? kmalloc_array(nr_pages, sizeof(struct page *), GFP_NOIO)
? kmalloc_array(nr_pages, sizeof(struct page *), GFP_NOFS)
: stack_pages;
if (!pages)
goto bounce;
@ -177,7 +177,7 @@ static int __bio_uncompress(struct bch_fs *c, struct bio *src,
.avail_out = dst_len,
};
workspace = mempool_alloc(&c->decompress_workspace, GFP_NOIO);
workspace = mempool_alloc(&c->decompress_workspace, GFP_NOFS);
zlib_set_workspace(&strm, workspace);
zlib_inflateInit2(&strm, -MAX_WBITS);
@ -196,7 +196,7 @@ static int __bio_uncompress(struct bch_fs *c, struct bio *src,
if (real_src_len > src_len - 4)
goto err;
workspace = mempool_alloc(&c->decompress_workspace, GFP_NOIO);
workspace = mempool_alloc(&c->decompress_workspace, GFP_NOFS);
ctx = zstd_init_dctx(workspace, zstd_dctx_workspace_bound());
ret = zstd_decompress_dctx(ctx,
@ -382,7 +382,7 @@ static unsigned __bio_compress(struct bch_fs *c,
dst_data = bio_map_or_bounce(c, dst, WRITE);
src_data = bio_map_or_bounce(c, src, READ);
workspace = mempool_alloc(&c->compress_workspace[compression_type], GFP_NOIO);
workspace = mempool_alloc(&c->compress_workspace[compression_type], GFP_NOFS);
*src_len = src->bi_iter.bi_size;
*dst_len = dst->bi_iter.bi_size;

90
libbcachefs/data_update.c
View File

@ -16,81 +16,6 @@
#include "subvolume.h"
#include "trace.h"
static int insert_snapshot_whiteouts(struct btree_trans *trans,
enum btree_id id,
struct bpos old_pos,
struct bpos new_pos)
{
struct bch_fs *c = trans->c;
struct btree_iter iter, iter2;
struct bkey_s_c k, k2;
snapshot_id_list s;
struct bkey_i *update;
int ret;
if (!btree_type_has_snapshots(id))
return 0;
darray_init(&s);
if (!bch2_snapshot_has_children(c, old_pos.snapshot))
return 0;
bch2_trans_iter_init(trans, &iter, id, old_pos,
BTREE_ITER_NOT_EXTENTS|
BTREE_ITER_ALL_SNAPSHOTS);
while (1) {
k = bch2_btree_iter_prev(&iter);
ret = bkey_err(k);
if (ret)
break;
if (!k.k)
break;
if (!bkey_eq(old_pos, k.k->p))
break;
if (bch2_snapshot_is_ancestor(c, k.k->p.snapshot, old_pos.snapshot) &&
!snapshot_list_has_ancestor(c, &s, k.k->p.snapshot)) {
struct bpos whiteout_pos = new_pos;
whiteout_pos.snapshot = k.k->p.snapshot;
k2 = bch2_bkey_get_iter(trans, &iter2, id, whiteout_pos,
BTREE_ITER_NOT_EXTENTS|
BTREE_ITER_INTENT);
ret = bkey_err(k2);
if (!ret && k2.k->type == KEY_TYPE_deleted) {
update = bch2_trans_kmalloc(trans, sizeof(struct bkey_i));
ret = PTR_ERR_OR_ZERO(update);
if (ret)
break;
bkey_init(&update->k);
update->k.p = whiteout_pos;
update->k.type = KEY_TYPE_whiteout;
ret = bch2_trans_update(trans, &iter2, update,
BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE);
}
bch2_trans_iter_exit(trans, &iter2);
if (ret)
break;
ret = snapshot_list_add(c, &s, k.k->p.snapshot);
if (ret)
break;
}
}
bch2_trans_iter_exit(trans, &iter);
darray_exit(&s);
return ret;
}
static void trace_move_extent_finish2(struct bch_fs *c, struct bkey_s_c k)
{
if (trace_move_extent_finish_enabled()) {
@ -327,19 +252,12 @@ restart_drop_extra_replicas:
next_pos = insert->k.p;
if (!bkey_eq(bkey_start_pos(&insert->k), bkey_start_pos(k.k))) {
ret = insert_snapshot_whiteouts(trans, m->btree_id, k.k->p,
bkey_start_pos(&insert->k));
if (ret)
goto err;
}
if (!bkey_eq(insert->k.p, k.k->p)) {
ret = insert_snapshot_whiteouts(trans, m->btree_id,
ret = bch2_insert_snapshot_whiteouts(trans, m->btree_id,
k.k->p, bkey_start_pos(&insert->k)) ?:
bch2_insert_snapshot_whiteouts(trans, m->btree_id,
k.k->p, insert->k.p);
if (ret)
goto err;
}
ret = bch2_trans_update(trans, &iter, insert,
BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE) ?:
@ -374,7 +292,7 @@ nowork:
&m->ctxt->stats->sectors_raced);
}
this_cpu_add(c->counters[BCH_COUNTER_move_extent_fail], new->k.size);
this_cpu_inc(c->counters[BCH_COUNTER_move_extent_fail]);
bch2_btree_iter_advance(&iter);
goto next;

4
libbcachefs/debug.c
View File

@ -47,7 +47,7 @@ static bool bch2_btree_verify_replica(struct bch_fs *c, struct btree *b,
bio = bio_alloc_bioset(ca->disk_sb.bdev,
buf_pages(n_sorted, btree_bytes(c)),
REQ_OP_READ|REQ_META,
GFP_NOIO,
GFP_NOFS,
&c->btree_bio);
bio->bi_iter.bi_sector = pick.ptr.offset;
bch2_bio_map(bio, n_sorted, btree_bytes(c));
@ -211,7 +211,7 @@ void bch2_btree_node_ondisk_to_text(struct printbuf *out, struct bch_fs *c,
bio = bio_alloc_bioset(ca->disk_sb.bdev,
buf_pages(n_ondisk, btree_bytes(c)),
REQ_OP_READ|REQ_META,
GFP_NOIO,
GFP_NOFS,
&c->btree_bio);
bio->bi_iter.bi_sector = pick.ptr.offset;
bch2_bio_map(bio, n_ondisk, btree_bytes(c));

13
libbcachefs/ec.c
View File

@ -485,7 +485,7 @@ int bch2_ec_read_extent(struct bch_fs *c, struct bch_read_bio *rbio)
BUG_ON(!rbio->pick.has_ec);
buf = kzalloc(sizeof(*buf), GFP_NOIO);
buf = kzalloc(sizeof(*buf), GFP_NOFS);
if (!buf)
return -BCH_ERR_ENOMEM_ec_read_extent;
@ -578,15 +578,8 @@ static int __ec_stripe_mem_alloc(struct bch_fs *c, size_t idx, gfp_t gfp)
static int ec_stripe_mem_alloc(struct btree_trans *trans,
struct btree_iter *iter)
{
size_t idx = iter->pos.offset;
if (!__ec_stripe_mem_alloc(trans->c, idx, GFP_NOWAIT|__GFP_NOWARN))
return 0;
bch2_trans_unlock(trans);
return __ec_stripe_mem_alloc(trans->c, idx, GFP_KERNEL) ?:
bch2_trans_relock(trans);
return allocate_dropping_locks_errcode(trans,
__ec_stripe_mem_alloc(trans->c, iter->pos.offset, _gfp));
}
/*

13
libbcachefs/errcode.h
View File

@ -94,6 +94,17 @@
x(ENOSPC, ENOSPC_sb_crypt) \
x(ENOSPC, ENOSPC_btree_slot) \
x(ENOSPC, ENOSPC_snapshot_tree) \
x(ENOENT, ENOENT_bkey_type_mismatch) \
x(ENOENT, ENOENT_str_hash_lookup) \
x(ENOENT, ENOENT_str_hash_set_must_replace) \
x(ENOENT, ENOENT_inode) \
x(ENOENT, ENOENT_not_subvol) \
x(ENOENT, ENOENT_directory_dead) \
x(ENOENT, ENOENT_subvolume) \
x(ENOENT, ENOENT_snapshot_tree) \
x(ENOENT, ENOENT_dirent_doesnt_match_inode) \
x(ENOENT, ENOENT_dev_not_found) \
x(ENOENT, ENOENT_dev_idx_not_found) \
x(0, open_buckets_empty) \
x(0, freelist_empty) \
x(BCH_ERR_freelist_empty, no_buckets_found) \
@ -219,7 +230,7 @@ static inline bool _bch2_err_matches(int err, int class)
#define bch2_err_matches(_err, _class) \
({ \
BUILD_BUG_ON(!__builtin_constant_p(_class)); \
_bch2_err_matches(_err, _class); \
unlikely(_bch2_err_matches(_err, _class)); \
})
int __bch2_err_class(int);

3
libbcachefs/error.c
View File

@ -85,12 +85,13 @@ enum ask_yn bch2_fsck_ask_yn(void)
bool ret;
while (true) {
fputs(" (y,n,Y,N) ", stdout);
fputs(" (y,n, or Y,N for all errors of this type) ", stdout);
fflush(stdout);
if (getline(&buf, &buflen, stdin) < 0)
die("error reading from standard input");
strim(buf);
if (strlen(buf) != 1)
continue;

2
libbcachefs/fs-common.c
View File

@ -281,7 +281,7 @@ int bch2_unlink_trans(struct btree_trans *trans,
}
if (deleting_snapshot && !inode_u->bi_subvol) {
ret = -ENOENT;
ret = -BCH_ERR_ENOENT_not_subvol;
goto err;
}

78
libbcachefs/fs-io.c
View File

@ -531,7 +531,7 @@ static struct bch_folio *__bch2_folio_create(struct folio *folio, gfp_t gfp)
s = kzalloc(sizeof(*s) +
sizeof(struct bch_folio_sector) *
folio_sectors(folio), GFP_NOFS|gfp);
folio_sectors(folio), gfp);
if (!s)
return NULL;
@ -558,7 +558,7 @@ static void __bch2_folio_set(struct folio *folio,
unsigned pg_offset, unsigned pg_len,
unsigned nr_ptrs, unsigned state)
{
struct bch_folio *s = bch2_folio_create(folio, __GFP_NOFAIL);
struct bch_folio *s = bch2_folio(folio);
unsigned i, sectors = folio_sectors(folio);
BUG_ON(pg_offset >= sectors);
@ -587,11 +587,25 @@ static int bch2_folio_set(struct bch_fs *c, subvol_inum inum,
struct btree_trans trans;
struct btree_iter iter;
struct bkey_s_c k;
struct bch_folio *s;
u64 offset = folio_sector(folios[0]);
unsigned folio_idx = 0;
unsigned folio_idx;
u32 snapshot;
bool need_set = false;
int ret;
for (folio_idx = 0; folio_idx < nr_folios; folio_idx++) {
s = bch2_folio_create(folios[folio_idx], GFP_KERNEL);
if (!s)
return -ENOMEM;
need_set |= !s->uptodate;
}
if (!need_set)
return 0;
folio_idx = 0;
bch2_trans_init(&trans, c, 0, 0);
retry:
bch2_trans_begin(&trans);
@ -616,7 +630,7 @@ retry:
BUG_ON(k.k->p.offset < folio_start);
BUG_ON(bkey_start_offset(k.k) > folio_end);
if (!bch2_folio_create(folio, __GFP_NOFAIL)->uptodate)
if (!bch2_folio(folio)->uptodate)
__bch2_folio_set(folio, folio_offset, folio_len, nr_ptrs, state);
if (k.k->p.offset < folio_end)
@ -1008,15 +1022,8 @@ vm_fault_t bch2_page_mkwrite(struct vm_fault *vmf)
len = min_t(loff_t, folio_size(folio), isize - folio_pos(folio));
if (!bch2_folio_create(folio, __GFP_NOFAIL)->uptodate) {
if (bch2_folio_set(c, inode_inum(inode), &folio, 1)) {
folio_unlock(folio);
ret = VM_FAULT_SIGBUS;
goto out;
}
}
if (bch2_folio_reservation_get(c, inode, folio, &res, 0, len)) {
if (bch2_folio_set(c, inode_inum(inode), &folio, 1) ?:
bch2_folio_reservation_get(c, inode, folio, &res, 0, len)) {
folio_unlock(folio);
ret = VM_FAULT_SIGBUS;
goto out;
@ -1097,7 +1104,7 @@ static int readpages_iter_init(struct readpages_iter *iter,
darray_for_each(iter->folios, fi) {
ractl->_nr_pages -= 1U << folio_order(*fi);
__bch2_folio_create(*fi, __GFP_NOFAIL);
__bch2_folio_create(*fi, __GFP_NOFAIL|GFP_KERNEL);
folio_put(*fi);
folio_put(*fi);
}
@ -1129,11 +1136,15 @@ static bool extent_partial_reads_expensive(struct bkey_s_c k)
return false;
}
static void readpage_bio_extend(struct readpages_iter *iter,
static int readpage_bio_extend(struct btree_trans *trans,
struct readpages_iter *iter,
struct bio *bio,
unsigned sectors_this_extent,
bool get_more)
{
/* Don't hold btree locks while allocating memory: */
bch2_trans_unlock(trans);
while (bio_sectors(bio) < sectors_this_extent &&
bio->bi_vcnt < bio->bi_max_vecs) {
struct folio *folio = readpage_iter_peek(iter);
@ -1155,12 +1166,12 @@ static void readpage_bio_extend(struct readpages_iter *iter,
if (!folio)
break;
if (!__bch2_folio_create(folio, 0)) {
if (!__bch2_folio_create(folio, GFP_KERNEL)) {
folio_put(folio);
break;
}
ret = filemap_add_folio(iter->mapping, folio, folio_offset, GFP_NOFS);
ret = filemap_add_folio(iter->mapping, folio, folio_offset, GFP_KERNEL);
if (ret) {
__bch2_folio_release(folio);
folio_put(folio);
@ -1174,6 +1185,8 @@ static void readpage_bio_extend(struct readpages_iter *iter,
BUG_ON(!bio_add_folio(bio, folio, folio_size(folio), 0));
}
return bch2_trans_relock(trans);
}
static void bchfs_read(struct btree_trans *trans,
@ -1241,9 +1254,12 @@ retry:
sectors = min(sectors, k.k->size - offset_into_extent);
if (readpages_iter)
readpage_bio_extend(readpages_iter, &rbio->bio, sectors,
if (readpages_iter) {
ret = readpage_bio_extend(trans, readpages_iter, &rbio->bio, sectors,
extent_partial_reads_expensive(k));
if (ret)
break;
}
bytes = min(sectors, bio_sectors(&rbio->bio)) << 9;
swap(rbio->bio.bi_iter.bi_size, bytes);
@ -1310,7 +1326,7 @@ void bch2_readahead(struct readahead_control *ractl)
BIO_MAX_VECS);
struct bch_read_bio *rbio =
rbio_init(bio_alloc_bioset(NULL, n, REQ_OP_READ,
GFP_NOFS, &c->bio_read),
GFP_KERNEL, &c->bio_read),
opts);
readpage_iter_advance(&readpages_iter);
@ -1321,6 +1337,7 @@ void bch2_readahead(struct readahead_control *ractl)
bchfs_read(&trans, rbio, inode_inum(inode),
&readpages_iter);
bch2_trans_unlock(&trans);
}
bch2_pagecache_add_put(inode);
@ -1362,7 +1379,7 @@ static int bch2_read_single_folio(struct folio *folio,
bch2_inode_opts_get(&opts, c, &inode->ei_inode);
rbio = rbio_init(bio_alloc_bioset(NULL, 1, REQ_OP_READ, GFP_NOFS, &c->bio_read),
rbio = rbio_init(bio_alloc_bioset(NULL, 1, REQ_OP_READ, GFP_KERNEL, &c->bio_read),
opts);
rbio->bio.bi_private = &done;
rbio->bio.bi_end_io = bch2_read_single_folio_end_io;
@ -1498,7 +1515,7 @@ static void bch2_writepage_io_alloc(struct bch_fs *c,
w->io = container_of(bio_alloc_bioset(NULL, BIO_MAX_VECS,
REQ_OP_WRITE,
GFP_NOFS,
GFP_KERNEL,
&c->writepage_bioset),
struct bch_writepage_io, op.wbio.bio);
@ -1553,7 +1570,7 @@ static int __bch2_writepage(struct folio *folio,
folio_size(folio));
do_io:
f_sectors = folio_sectors(folio);
s = bch2_folio_create(folio, __GFP_NOFAIL);
s = bch2_folio(folio);
if (f_sectors > w->tmp_sectors) {
kfree(w->tmp);
@ -1735,11 +1752,9 @@ readpage:
if (ret)
goto err;
out:
if (!bch2_folio_create(folio, __GFP_NOFAIL)->uptodate) {
ret = bch2_folio_set(c, inode_inum(inode), &folio, 1);
if (ret)
goto err;
}
ret = bch2_folio_reservation_get(c, inode, folio, res, offset, len);
if (ret) {
@ -1875,19 +1890,16 @@ static int __bch2_buffered_write(struct bch_inode_info *inode,
}
}
ret = bch2_folio_set(c, inode_inum(inode), folios.data, folios.nr);
if (ret)
goto out;
f_pos = pos;
f_offset = pos - folio_pos(darray_first(folios));
darray_for_each(folios, fi) {
struct folio *f = *fi;
u64 f_len = min(end, folio_end_pos(f)) - f_pos;
if (!bch2_folio_create(f, __GFP_NOFAIL)->uptodate) {
ret = bch2_folio_set(c, inode_inum(inode), fi,
folios.data + folios.nr - fi);
if (ret)
goto out;
}
/*
* XXX: per POSIX and fstests generic/275, on -ENOSPC we're
* supposed to write as much as we have disk space for.
@ -2839,11 +2851,9 @@ static int __bch2_truncate_folio(struct bch_inode_info *inode,
goto unlock;
}
if (!s->uptodate) {
ret = bch2_folio_set(c, inode_inum(inode), &folio, 1);
if (ret)
goto unlock;
}
for (i = round_up(start_offset, block_bytes(c)) >> 9;
i < round_down(end_offset, block_bytes(c)) >> 9;

2
libbcachefs/fs-ioctl.c
View File

@ -382,7 +382,7 @@ retry:
dir = dst_path.dentry->d_inode;
if (IS_DEADDIR(dir)) {
error = -ENOENT;
error = -BCH_ERR_ENOENT_directory_dead;
goto err3;
}

6
libbcachefs/fs.c
View File

@ -105,7 +105,7 @@ retry:
if (bch2_err_matches(ret, BCH_ERR_transaction_restart))
goto retry;
bch2_fs_fatal_err_on(ret == -ENOENT, c,
bch2_fs_fatal_err_on(bch2_err_matches(ret, ENOENT), c,
"inode %u:%llu not found when updating",
inode_inum(inode).subvol,
inode_inum(inode).inum);
@ -1261,14 +1261,14 @@ retry:
goto err;
if (k.k->type != KEY_TYPE_dirent) {
ret = -ENOENT;
ret = -BCH_ERR_ENOENT_dirent_doesnt_match_inode;
goto err;
}
d = bkey_s_c_to_dirent(k);
ret = bch2_dirent_read_target(&trans, inode_inum(dir), d, &target);
if (ret > 0)
ret = -ENOENT;
ret = -BCH_ERR_ENOENT_dirent_doesnt_match_inode;
if (ret)
goto err;

24
libbcachefs/fsck.c
View File

@ -78,7 +78,7 @@ static int __snapshot_lookup_subvol(struct btree_trans *trans, u32 snapshot,
snapshot, &s);
if (!ret)
*subvol = le32_to_cpu(s.subvol);
else if (ret == -ENOENT)
else if (bch2_err_matches(ret, ENOENT))
bch_err(trans->c, "snapshot %u not fonud", snapshot);
return ret;
@ -119,7 +119,7 @@ static int lookup_first_inode(struct btree_trans *trans, u64 inode_nr,
goto err;
if (!k.k || !bkey_eq(k.k->p, POS(0, inode_nr))) {
ret = -ENOENT;
ret = -BCH_ERR_ENOENT_inode;
goto err;
}
@ -148,7 +148,7 @@ static int __lookup_inode(struct btree_trans *trans, u64 inode_nr,
ret = bkey_is_inode(k.k)
? bch2_inode_unpack(k, inode)
: -ENOENT;
: -BCH_ERR_ENOENT_inode;
if (!ret)
*snapshot = iter.pos.snapshot;
err:
@ -333,7 +333,7 @@ static int lookup_lostfound(struct btree_trans *trans, u32 subvol,
ret = __lookup_dirent(trans, root_hash_info, root_inum,
&lostfound_str, &inum, &d_type);
if (ret == -ENOENT) {
if (bch2_err_matches(ret, ENOENT)) {
bch_notice(c, "creating lost+found");
goto create_lostfound;
}
@ -1088,7 +1088,7 @@ static int inode_backpointer_exists(struct btree_trans *trans,
SPOS(inode->bi_dir, inode->bi_dir_offset, snapshot));
ret = bkey_err(d);
if (ret)
return ret == -ENOENT ? 0 : ret;
return bch2_err_matches(ret, ENOENT) ? 0 : ret;
ret = dirent_points_to_inode(d, inode);
bch2_trans_iter_exit(trans, &iter);
@ -1653,7 +1653,7 @@ static int check_dirent(struct btree_trans *trans, struct btree_iter *iter,
ret = __subvol_lookup(trans, target_subvol,
&target_snapshot, &target_inum);
if (ret && ret != -ENOENT)
if (ret && !bch2_err_matches(ret, ENOENT))
goto err;
if (fsck_err_on(ret, c,
@ -1665,7 +1665,7 @@ static int check_dirent(struct btree_trans *trans, struct btree_iter *iter,
ret = __lookup_inode(trans, target_inum,
&subvol_root, &target_snapshot);
if (ret && ret != -ENOENT)
if (ret && !bch2_err_matches(ret, ENOENT))
goto err;
if (fsck_err_on(ret, c,
@ -1846,7 +1846,7 @@ static int check_root_trans(struct btree_trans *trans)
int ret;
ret = __subvol_lookup(trans, BCACHEFS_ROOT_SUBVOL, &snapshot, &inum);
if (ret && ret != -ENOENT)
if (ret && !bch2_err_matches(ret, ENOENT))
return ret;
if (mustfix_fsck_err_on(ret, c, "root subvol missing")) {
@ -1873,7 +1873,7 @@ static int check_root_trans(struct btree_trans *trans)
}
ret = __lookup_inode(trans, BCACHEFS_ROOT_INO, &root_inode, &snapshot);
if (ret && ret != -ENOENT)
if (ret && !bch2_err_matches(ret, ENOENT))
return ret;
if (mustfix_fsck_err_on(ret, c, "root directory missing") ||
@ -1972,15 +1972,15 @@ static int check_path(struct btree_trans *trans,
PTR_ERR_OR_ZERO((d = dirent_get_by_pos(trans, &dirent_iter,
SPOS(inode->bi_dir, inode->bi_dir_offset,
parent_snapshot))).k));
if (ret && ret != -ENOENT)
if (ret && !bch2_err_matches(ret, ENOENT))
break;
if (!ret && !dirent_points_to_inode(d, inode)) {
bch2_trans_iter_exit(trans, &dirent_iter);
ret = -ENOENT;
ret = -BCH_ERR_ENOENT_dirent_doesnt_match_inode;
}
if (ret == -ENOENT) {
if (bch2_err_matches(ret, ENOENT)) {
if (fsck_err(c, "unreachable inode %llu:%u, type %s nlink %u backptr %llu:%llu",
inode->bi_inum, snapshot,
bch2_d_type_str(inode_d_type(inode)),

2
libbcachefs/inode.c
View File

@ -336,7 +336,7 @@ int bch2_inode_peek(struct btree_trans *trans,
if (ret)
return ret;
ret = bkey_is_inode(k.k) ? 0 : -ENOENT;
ret = bkey_is_inode(k.k) ? 0 : -BCH_ERR_ENOENT_inode;
if (ret)
goto err;

26
libbcachefs/io.c
View File

@ -163,7 +163,7 @@ static struct page *__bio_alloc_page_pool(struct bch_fs *c, bool *using_mempool)
struct page *page;
if (likely(!*using_mempool)) {
page = alloc_page(GFP_NOIO);
page = alloc_page(GFP_NOFS);
if (unlikely(!page)) {
mutex_lock(&c->bio_bounce_pages_lock);
*using_mempool = true;
@ -172,7 +172,7 @@ static struct page *__bio_alloc_page_pool(struct bch_fs *c, bool *using_mempool)
}
} else {
pool_alloc:
page = mempool_alloc(&c->bio_bounce_pages, GFP_NOIO);
page = mempool_alloc(&c->bio_bounce_pages, GFP_NOFS);
}
return page;
@ -660,7 +660,7 @@ void bch2_submit_wbio_replicas(struct bch_write_bio *wbio, struct bch_fs *c,
if (to_entry(ptr + 1) < ptrs.end) {
n = to_wbio(bio_alloc_clone(NULL, &wbio->bio,
GFP_NOIO, &ca->replica_set));
GFP_NOFS, &ca->replica_set));
n->bio.bi_end_io = wbio->bio.bi_end_io;
n->bio.bi_private = wbio->bio.bi_private;
@ -976,7 +976,7 @@ static struct bio *bch2_write_bio_alloc(struct bch_fs *c,
pages = min(pages, BIO_MAX_VECS);
bio = bio_alloc_bioset(NULL, pages, 0,
GFP_NOIO, &c->bio_write);
GFP_NOFS, &c->bio_write);
wbio = wbio_init(bio);
wbio->put_bio = true;
/* copy WRITE_SYNC flag */
@ -1314,7 +1314,7 @@ static int bch2_write_extent(struct bch_write_op *op, struct write_point *wp,
BUG_ON(total_output != total_input);
dst = bio_split(src, total_input >> 9,
GFP_NOIO, &c->bio_write);
GFP_NOFS, &c->bio_write);
wbio_init(dst)->put_bio = true;
/* copy WRITE_SYNC flag */
dst->bi_opf = src->bi_opf;
@ -2013,7 +2013,7 @@ static struct promote_op *__promote_alloc(struct btree_trans *trans,
if (!bch2_write_ref_tryget(c, BCH_WRITE_REF_promote))
return NULL;
op = kzalloc(sizeof(*op) + sizeof(struct bio_vec) * pages, GFP_NOIO);
op = kzalloc(sizeof(*op) + sizeof(struct bio_vec) * pages, GFP_NOFS);
if (!op)
goto err;
@ -2026,7 +2026,7 @@ static struct promote_op *__promote_alloc(struct btree_trans *trans,
*/
*rbio = kzalloc(sizeof(struct bch_read_bio) +
sizeof(struct bio_vec) * pages,
GFP_NOIO);
GFP_NOFS);
if (!*rbio)
goto err;
@ -2034,7 +2034,7 @@ static struct promote_op *__promote_alloc(struct btree_trans *trans,
bio_init(&(*rbio)->bio, NULL, (*rbio)->bio.bi_inline_vecs, pages, 0);
if (bch2_bio_alloc_pages(&(*rbio)->bio, sectors << 9,
GFP_NOIO))
GFP_NOFS))
goto err;
(*rbio)->bounce = true;
@ -2057,14 +2057,16 @@ static struct promote_op *__promote_alloc(struct btree_trans *trans,
.write_flags = BCH_WRITE_ALLOC_NOWAIT|BCH_WRITE_CACHED,
},
btree_id, k);
if (ret == -BCH_ERR_nocow_lock_blocked) {
if (ret) {
WARN_ONCE(ret != -BCH_ERR_nocow_lock_blocked,
"%s: saw unknown error %s\n", __func__, bch2_err_str(ret));
ret = rhashtable_remove_fast(&c->promote_table, &op->hash,
bch_promote_params);
BUG_ON(ret);
goto err;
}
BUG_ON(ret);
op->write.op.end_io = promote_done;
return op;
@ -2746,7 +2748,7 @@ get_bio:
rbio = rbio_init(bio_alloc_bioset(NULL,
DIV_ROUND_UP(sectors, PAGE_SECTORS),
0,
GFP_NOIO,
GFP_NOFS,
&c->bio_read_split),
orig->opts);
@ -2762,7 +2764,7 @@ get_bio:
* from the whole bio, in which case we don't want to retry and
* lose the error)
*/
rbio = rbio_init(bio_alloc_clone(NULL, &orig->bio, GFP_NOIO,
rbio = rbio_init(bio_alloc_clone(NULL, &orig->bio, GFP_NOFS,
&c->bio_read_split),
orig->opts);
rbio->bio.bi_iter = iter;

2
libbcachefs/journal_io.c
View File

@ -1438,7 +1438,7 @@ static void journal_buf_realloc(struct journal *j, struct journal_buf *buf)
if (buf->buf_size >= new_size)
return;
new_buf = kvpmalloc(new_size, GFP_NOIO|__GFP_NOWARN);
new_buf = kvpmalloc(new_size, GFP_NOFS|__GFP_NOWARN);
if (!new_buf)
return;

2
libbcachefs/journal_reclaim.c
View File

@ -271,7 +271,7 @@ void bch2_journal_do_discards(struct journal *j)
blkdev_issue_discard(ca->disk_sb.bdev,
bucket_to_sector(ca,
ja->buckets[ja->discard_idx]),
ca->mi.bucket_size, GFP_NOIO);
ca->mi.bucket_size, GFP_NOFS);
spin_lock(&j->lock);
ja->discard_idx = (ja->discard_idx + 1) % ja->nr;

2
libbcachefs/keylist.c
View File

@ -18,7 +18,7 @@ int bch2_keylist_realloc(struct keylist *l, u64 *inline_u64s,
(old_buf && roundup_pow_of_two(oldsize) == newsize))
return 0;
new_keys = krealloc(old_buf, sizeof(u64) * newsize, GFP_NOIO);
new_keys = krealloc(old_buf, sizeof(u64) * newsize, GFP_NOFS);
if (!new_keys)
return -ENOMEM;

2
libbcachefs/move.c
View File

@ -427,7 +427,7 @@ static int lookup_inode(struct btree_trans *trans, struct bpos pos,
goto err;
if (!k.k || !bkey_eq(k.k->p, pos)) {
ret = -ENOENT;
ret = -BCH_ERR_ENOENT_inode;
goto err;
}

2
libbcachefs/movinggc.c
View File

@ -236,7 +236,7 @@ err:
darray_exit(&buckets);
/* no entries in LRU btree found, or got to end: */
if (ret == -ENOENT)
if (bch2_err_matches(ret, ENOENT))
ret = 0;
if (ret < 0 && !bch2_err_matches(ret, EROFS))

13
libbcachefs/quota.c
View File

@ -576,6 +576,13 @@ static int bch2_fs_quota_read_inode(struct btree_trans *trans,
le32_to_cpu(s_t.master_subvol),
k.k->p.offset,
}, &u);
/*
* Inode might be deleted in this snapshot - the easiest way to handle
* that is to just skip it here:
*/
if (bch2_err_matches(ret, ENOENT))
goto advance;
if (ret)
return ret;
@ -615,7 +622,7 @@ int bch2_fs_quota_read(struct bch_fs *c)
POS_MIN, BTREE_ITER_PREFETCH|BTREE_ITER_ALL_SNAPSHOTS, k,
bch2_fs_quota_read_inode(&trans, &iter, k));
if (ret)
bch_err(c, "err in quota_read: %s", bch2_err_str(ret));
bch_err(c, "%s: err %s", __func__, bch2_err_str(ret));
bch2_trans_exit(&trans);
return ret;
@ -893,7 +900,7 @@ static int bch2_get_next_quota(struct super_block *sb, struct kqid *kqid,
ret = -ENOENT;
found:
mutex_unlock(&q->lock);
return ret;
return bch2_err_class(ret);
}
static int bch2_set_quota_trans(struct btree_trans *trans,
@ -953,7 +960,7 @@ static int bch2_set_quota(struct super_block *sb, struct kqid qid,
bch2_set_quota_trans(&trans, &new_quota, qdq)) ?:
__bch2_quota_set(c, bkey_i_to_s_c(&new_quota.k_i), qdq);
return ret;
return bch2_err_class(ret);
}
const struct quotactl_ops bch2_quotactl_operations = {

2
libbcachefs/recovery.c
View File

@ -1082,7 +1082,7 @@ static int bch2_fs_upgrade_for_subvolumes(struct btree_trans *trans)
if (!bkey_is_inode(k.k)) {
bch_err(trans->c, "root inode not found");
ret = -ENOENT;
ret = -BCH_ERR_ENOENT_inode;
goto err;
}

20
libbcachefs/reflink.c
View File

@ -167,24 +167,13 @@ static int bch2_make_extent_indirect(struct btree_trans *trans,
if (orig->k.type == KEY_TYPE_inline_data)
bch2_check_set_feature(c, BCH_FEATURE_reflink_inline_data);
for_each_btree_key_norestart(trans, reflink_iter, BTREE_ID_reflink,
POS(0, c->reflink_hint),
BTREE_ITER_SLOTS, k, ret) {
if (reflink_iter.pos.inode) {
bch2_btree_iter_set_pos(&reflink_iter, POS_MIN);
continue;
}
if (bkey_deleted(k.k) && orig->k.size <= k.k->size)
break;
}
bch2_trans_iter_init(trans, &reflink_iter, BTREE_ID_reflink, POS_MAX,
BTREE_ITER_INTENT);
k = bch2_btree_iter_peek_prev(&reflink_iter);
ret = bkey_err(k);
if (ret)
goto err;
/* rewind iter to start of hole, if necessary: */
bch2_btree_iter_set_pos_to_extent_start(&reflink_iter);
r_v = bch2_trans_kmalloc(trans, sizeof(__le64) + bkey_bytes(&orig->k));
ret = PTR_ERR_OR_ZERO(r_v);
if (ret)
@ -226,7 +215,6 @@ static int bch2_make_extent_indirect(struct btree_trans *trans,
ret = bch2_trans_update(trans, extent_iter, &r_p->k_i,
BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE);
err:
c->reflink_hint = reflink_iter.pos.offset;
bch2_trans_iter_exit(trans, &reflink_iter);
return ret;

4
libbcachefs/str_hash.h
View File

@ -181,7 +181,7 @@ bch2_hash_lookup(struct btree_trans *trans,
}
bch2_trans_iter_exit(trans, iter);
return ret ?: -ENOENT;
return ret ?: -BCH_ERR_ENOENT_str_hash_lookup;
}
static __always_inline int
@ -288,7 +288,7 @@ found:
not_found:
if (!found && (flags & BCH_HASH_SET_MUST_REPLACE)) {
ret = -ENOENT;
ret = -BCH_ERR_ENOENT_str_hash_set_must_replace;
} else if (found && (flags & BCH_HASH_SET_MUST_CREATE)) {
ret = -EEXIST;
} else {

19
libbcachefs/subvolume.c
View File

@ -37,8 +37,12 @@ int bch2_snapshot_tree_invalid(const struct bch_fs *c, struct bkey_s_c k,
int bch2_snapshot_tree_lookup(struct btree_trans *trans, u32 id,
struct bch_snapshot_tree *s)
{
return bch2_bkey_get_val_typed(trans, BTREE_ID_snapshot_trees, POS(0, id),
int ret = bch2_bkey_get_val_typed(trans, BTREE_ID_snapshot_trees, POS(0, id),
BTREE_ITER_WITH_UPDATES, snapshot_tree, s);
if (bch2_err_matches(ret, ENOENT))
ret = -BCH_ERR_ENOENT_snapshot_tree;
return ret;
}
static struct bkey_i_snapshot_tree *
@ -284,6 +288,7 @@ static int bch2_snapshot_tree_master_subvol(struct btree_trans *trans,
struct btree_iter iter;
struct bkey_s_c k;
struct bkey_s_c_subvolume s;
bool found = false;
int ret;
for_each_btree_key_norestart(trans, iter, BTREE_ID_subvolumes, POS_MIN,
@ -296,14 +301,14 @@ static int bch2_snapshot_tree_master_subvol(struct btree_trans *trans,
continue;
if (!BCH_SUBVOLUME_SNAP(s.v)) {
*subvol_id = s.k->p.offset;
goto found;
found = true;
break;
}
}
ret = ret ?: -ENOENT;
found:
bch2_trans_iter_exit(trans, &iter);
if (bch2_err_matches(ret, ENOENT)) {
if (!ret && !found) {
struct bkey_i_subvolume *s;
*subvol_id = bch2_snapshot_tree_oldest_subvol(c, snapshot_root);
@ -1217,7 +1222,7 @@ int bch2_subvolume_get_snapshot(struct btree_trans *trans, u32 subvol,
k = bch2_bkey_get_iter(trans, &iter, BTREE_ID_subvolumes, POS(0, subvol),
BTREE_ITER_CACHED|
BTREE_ITER_WITH_UPDATES);
ret = bkey_err(k) ?: k.k->type == KEY_TYPE_subvolume ? 0 : -ENOENT;
ret = bkey_err(k) ?: k.k->type == KEY_TYPE_subvolume ? 0 : -BCH_ERR_ENOENT_subvolume;
if (likely(!ret))
*snapid = le32_to_cpu(bkey_s_c_to_subvolume(k).v->snapshot);
@ -1444,7 +1449,7 @@ int bch2_subvolume_create(struct btree_trans *trans, u64 inode,
BTREE_ITER_CACHED, subvolume);
ret = PTR_ERR_OR_ZERO(src_subvol);
if (unlikely(ret)) {
bch2_fs_inconsistent_on(ret == -ENOENT, c,
bch2_fs_inconsistent_on(bch2_err_matches(ret, ENOENT), c,
"subvolume %u not found", src_subvolid);
goto err;
}

2
libbcachefs/super.c
View File

@ -1834,7 +1834,7 @@ struct bch_dev *bch2_dev_lookup(struct bch_fs *c, const char *name)
for_each_member_device_rcu(ca, c, i, NULL)
if (!strcmp(name, ca->name))
goto found;
ca = ERR_PTR(-ENOENT);
ca = ERR_PTR(-BCH_ERR_ENOENT_dev_not_found);
found:
rcu_read_unlock();

19
libbcachefs/trace.h
View File

@ -905,13 +905,6 @@ DEFINE_EVENT(transaction_event, trans_blocked_journal_reclaim,
TP_ARGS(trans, caller_ip)
);
DEFINE_EVENT(transaction_event, trans_restart_journal_res_get,
TP_PROTO(struct btree_trans *trans,
unsigned long caller_ip),
TP_ARGS(trans, caller_ip)
);
TRACE_EVENT(trans_restart_journal_preres_get,
TP_PROTO(struct btree_trans *trans,
unsigned long caller_ip,
@ -935,12 +928,6 @@ TRACE_EVENT(trans_restart_journal_preres_get,
__entry->flags)
);
DEFINE_EVENT(transaction_event, trans_restart_journal_reclaim,
TP_PROTO(struct btree_trans *trans,
unsigned long caller_ip),
TP_ARGS(trans, caller_ip)
);
DEFINE_EVENT(transaction_event, trans_restart_fault_inject,
TP_PROTO(struct btree_trans *trans,
unsigned long caller_ip),
@ -953,12 +940,6 @@ DEFINE_EVENT(transaction_event, trans_traverse_all,
TP_ARGS(trans, caller_ip)
);
DEFINE_EVENT(transaction_event, trans_restart_mark_replicas,
TP_PROTO(struct btree_trans *trans,
unsigned long caller_ip),
TP_ARGS(trans, caller_ip)
);
DEFINE_EVENT(transaction_event, trans_restart_key_cache_raced,
TP_PROTO(struct btree_trans *trans,
unsigned long caller_ip),

4
libbcachefs/util.c
View File

@ -350,7 +350,7 @@ static inline void bch2_time_stats_update_one(struct bch2_time_stats *stats,
if (time_after64(end, start)) {
duration = end - start;
stats->duration_stats = mean_and_variance_update(stats->duration_stats, duration);
mean_and_variance_update(&stats->duration_stats, duration);
mean_and_variance_weighted_update(&stats->duration_stats_weighted, duration);
stats->max_duration = max(stats->max_duration, duration);
stats->min_duration = min(stats->min_duration, duration);
@ -359,7 +359,7 @@ static inline void bch2_time_stats_update_one(struct bch2_time_stats *stats,
if (time_after64(end, stats->last_event)) {
freq = end - stats->last_event;
stats->freq_stats = mean_and_variance_update(stats->freq_stats, freq);
mean_and_variance_update(&stats->freq_stats, freq);
mean_and_variance_weighted_update(&stats->freq_stats_weighted, freq);
stats->max_freq = max(stats->max_freq, freq);
stats->min_freq = min(stats->min_freq, freq);

6
libbcachefs/xattr.c
View File

@ -163,7 +163,7 @@ static int bch2_xattr_get_trans(struct btree_trans *trans, struct bch_inode_info
err2:
bch2_trans_iter_exit(trans, &iter);
err1:
return ret == -ENOENT ? -ENODATA : ret;
return ret < 0 && bch2_err_matches(ret, ENOENT) ? -ENODATA : ret;
}
int bch2_xattr_get(struct bch_fs *c, struct bch_inode_info *inode,
@ -229,7 +229,7 @@ int bch2_xattr_set(struct btree_trans *trans, subvol_inum inum,
hash_info, inum, &search);
}
if (ret == -ENOENT)
if (bch2_err_matches(ret, ENOENT))
ret = flags & XATTR_REPLACE ? -ENODATA : 0;
return ret;
@ -589,7 +589,7 @@ err:
opt_id == Opt_background_target))
bch2_rebalance_add_work(c, inode->v.i_blocks);
return ret;
return bch2_err_class(ret);
}
static const struct xattr_handler bch_xattr_bcachefs_handler = {

17
linux/six.c
View File

@ -118,7 +118,7 @@ static int __do_six_trylock(struct six_lock *lock, enum six_lock_type type,
{
const struct six_lock_vals l[] = LOCK_VALS;
int ret;
u32 old, new, v;
u32 old;
EBUG_ON(type == SIX_LOCK_write && lock->owner != task);
EBUG_ON(type == SIX_LOCK_write &&
@ -179,19 +179,14 @@ static int __do_six_trylock(struct six_lock *lock, enum six_lock_type type,
ret = -1 - SIX_LOCK_read;
}
} else {
v = atomic_read(&lock->state);
old = atomic_read(&lock->state);
do {
new = old = v;
ret = !(old & l[type].lock_fail);
if (!ret || (type == SIX_LOCK_write && !try)) {
smp_mb();
break;
}
new += l[type].lock_val;
} while ((v = atomic_cmpxchg_acquire(&lock->state, old, new)) != old);
} while (!atomic_try_cmpxchg_acquire(&lock->state, &old, old + l[type].lock_val));
EBUG_ON(ret && !(atomic_read(&lock->state) & l[type].held_mask));
}
@ -681,10 +676,10 @@ EXPORT_SYMBOL_GPL(six_lock_downgrade);
bool six_lock_tryupgrade(struct six_lock *lock)
{
const struct six_lock_vals l[] = LOCK_VALS;
u32 old, new, v = atomic_read(&lock->state);
u32 old = atomic_read(&lock->state), new;
do {
new = old = v;
new = old;
if (new & SIX_LOCK_HELD_intent)
return false;
@ -695,7 +690,7 @@ bool six_lock_tryupgrade(struct six_lock *lock)
}
new |= SIX_LOCK_HELD_intent;
} while ((v = atomic_cmpxchg_acquire(&lock->state, old, new)) != old);
} while (!atomic_try_cmpxchg_acquire(&lock->state, &old, new));
if (lock->readers)
this_cpu_dec(*lock->readers);