mirror of
https://github.com/torvalds/linux.git
synced 2025-11-04 02:30:34 +02:00
bcachefs: Refactor bch2_trans_commit() path
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet
Kent Overstreet
parent
8f1965391c
commit
2a9101a989
10 changed files with 261 additions and 230 deletions
|
|
@ -301,7 +301,6 @@ do { \
|
|||
x(btree_node_sort) \
|
||||
x(btree_node_read) \
|
||||
x(btree_gc) \
|
||||
x(btree_update) \
|
||||
x(btree_lock_contended_read) \
|
||||
x(btree_lock_contended_intent) \
|
||||
x(btree_lock_contended_write) \
|
||||
|
|
|
|||
|
|
@ -62,10 +62,10 @@ bool __bch2_compact_whiteouts(struct bch_fs *, struct btree *, enum compact_mode
|
|||
|
||||
static inline unsigned should_compact_bset_lazy(struct btree *b, struct bset_tree *t)
|
||||
{
|
||||
unsigned bset_u64s = le16_to_cpu(bset(b, t)->u64s);
|
||||
unsigned dead_u64s = bset_u64s - b->nr.bset_u64s[t - b->set];
|
||||
unsigned total_u64s = bset_u64s(t);
|
||||
unsigned dead_u64s = total_u64s - b->nr.bset_u64s[t - b->set];
|
||||
|
||||
return dead_u64s > 128 && dead_u64s * 3 > bset_u64s;
|
||||
return dead_u64s > 64 && dead_u64s * 3 > total_u64s;
|
||||
}
|
||||
|
||||
static inline bool bch2_maybe_compact_whiteouts(struct bch_fs *c, struct btree *b)
|
||||
|
|
|
|||
|
|
@ -48,6 +48,11 @@ static inline int btree_iter_err(const struct btree_iter *iter)
|
|||
|
||||
/* Iterate over iters within a transaction: */
|
||||
|
||||
#define trans_for_each_iter_all(_trans, _iter) \
|
||||
for (_iter = (_trans)->iters; \
|
||||
_iter < (_trans)->iters + (_trans)->nr_iters; \
|
||||
_iter++)
|
||||
|
||||
static inline struct btree_iter *
|
||||
__trans_next_iter(struct btree_trans *trans, unsigned idx)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -255,7 +255,6 @@ struct btree_insert_entry {
|
|||
struct btree_trans {
|
||||
struct bch_fs *c;
|
||||
unsigned long ip;
|
||||
u64 commit_start;
|
||||
|
||||
u64 iters_linked;
|
||||
u64 iters_live;
|
||||
|
|
@ -283,12 +282,11 @@ struct btree_trans {
|
|||
struct disk_reservation *disk_res;
|
||||
unsigned flags;
|
||||
unsigned journal_u64s;
|
||||
struct replicas_delta_list *fs_usage_deltas;
|
||||
|
||||
struct btree_iter iters_onstack[2];
|
||||
struct btree_insert_entry updates_onstack[6];
|
||||
u8 updates_sorted_onstack[6];
|
||||
|
||||
struct replicas_delta_list *fs_usage_deltas;
|
||||
};
|
||||
|
||||
#define BTREE_FLAG(flag) \
|
||||
|
|
@ -420,6 +418,12 @@ static inline unsigned btree_bkey_first_offset(const struct bset_tree *t)
|
|||
__btree_node_offset_to_key(_b, (_t)->end_offset); \
|
||||
})
|
||||
|
||||
static inline unsigned bset_u64s(struct bset_tree *t)
|
||||
{
|
||||
return t->end_offset - t->data_offset -
|
||||
sizeof(struct bset) / sizeof(u64);
|
||||
}
|
||||
|
||||
static inline unsigned bset_byte_offset(struct btree *b, void *i)
|
||||
{
|
||||
return i - (void *) b->data;
|
||||
|
|
|
|||
|
|
@ -93,9 +93,30 @@ int bch2_btree_node_rewrite(struct bch_fs *c, struct btree_iter *,
|
|||
int bch2_btree_node_update_key(struct bch_fs *, struct btree_iter *,
|
||||
struct btree *, struct bkey_i_btree_ptr *);
|
||||
|
||||
int bch2_trans_commit(struct btree_trans *,
|
||||
struct disk_reservation *,
|
||||
u64 *, unsigned);
|
||||
int __bch2_trans_commit(struct btree_trans *);
|
||||
|
||||
/**
|
||||
* bch2_trans_commit - insert keys at given iterator positions
|
||||
*
|
||||
* This is main entry point for btree updates.
|
||||
*
|
||||
* Return values:
|
||||
* -EINTR: locking changed, this function should be called again. Only returned
|
||||
* if passed BTREE_INSERT_ATOMIC.
|
||||
* -EROFS: filesystem read only
|
||||
* -EIO: journal or btree node IO error
|
||||
*/
|
||||
static inline int bch2_trans_commit(struct btree_trans *trans,
|
||||
struct disk_reservation *disk_res,
|
||||
u64 *journal_seq,
|
||||
unsigned flags)
|
||||
{
|
||||
trans->disk_res = disk_res;
|
||||
trans->journal_seq = journal_seq;
|
||||
trans->flags = flags;
|
||||
|
||||
return __bch2_trans_commit(trans);
|
||||
}
|
||||
|
||||
static inline void bch2_trans_update(struct btree_trans *trans,
|
||||
struct btree_iter *iter,
|
||||
|
|
|
|||
|
|
@ -20,16 +20,11 @@
|
|||
#include <linux/sort.h>
|
||||
|
||||
static inline bool same_leaf_as_prev(struct btree_trans *trans,
|
||||
unsigned sorted_idx)
|
||||
unsigned idx)
|
||||
{
|
||||
struct btree_insert_entry *i = trans->updates +
|
||||
trans->updates_sorted[sorted_idx];
|
||||
struct btree_insert_entry *prev = sorted_idx
|
||||
? trans->updates + trans->updates_sorted[sorted_idx - 1]
|
||||
: NULL;
|
||||
|
||||
return prev &&
|
||||
i->iter->l[0].b == prev->iter->l[0].b;
|
||||
return idx &&
|
||||
trans->updates[trans->updates_sorted[idx]].iter->l[0].b ==
|
||||
trans->updates[trans->updates_sorted[idx - 1]].iter->l[0].b;
|
||||
}
|
||||
|
||||
#define trans_for_each_update_sorted(_trans, _i, _iter) \
|
||||
|
|
@ -92,8 +87,6 @@ static inline void btree_trans_sort_updates(struct btree_trans *trans)
|
|||
trans->updates_sorted[pos] = l - trans->updates;
|
||||
nr++;
|
||||
}
|
||||
|
||||
BUG_ON(nr != trans->nr_updates);
|
||||
}
|
||||
|
||||
/* Inserting into a given leaf node (last stage of insert): */
|
||||
|
|
@ -266,8 +259,8 @@ static void bch2_insert_fixup_key(struct btree_trans *trans,
|
|||
EBUG_ON(insert->k->k.u64s >
|
||||
bch_btree_keys_u64s_remaining(trans->c, l->b));
|
||||
|
||||
if (bch2_btree_bset_insert_key(iter, l->b, &l->iter,
|
||||
insert->k))
|
||||
if (likely(bch2_btree_bset_insert_key(iter, l->b, &l->iter,
|
||||
insert->k)))
|
||||
bch2_btree_journal_key(trans, iter, insert->k);
|
||||
}
|
||||
|
||||
|
|
@ -280,7 +273,8 @@ static void btree_insert_key_leaf(struct btree_trans *trans,
|
|||
struct bch_fs *c = trans->c;
|
||||
struct btree_iter *iter = insert->iter;
|
||||
struct btree *b = iter->l[0].b;
|
||||
int old_u64s = le16_to_cpu(btree_bset_last(b)->u64s);
|
||||
struct bset_tree *t = bset_tree_last(b);
|
||||
int old_u64s = bset_u64s(t);
|
||||
int old_live_u64s = b->nr.live_u64s;
|
||||
int live_u64s_added, u64s_added;
|
||||
|
||||
|
|
@ -290,7 +284,7 @@ static void btree_insert_key_leaf(struct btree_trans *trans,
|
|||
bch2_insert_fixup_extent(trans, insert);
|
||||
|
||||
live_u64s_added = (int) b->nr.live_u64s - old_live_u64s;
|
||||
u64s_added = (int) le16_to_cpu(btree_bset_last(b)->u64s) - old_u64s;
|
||||
u64s_added = (int) bset_u64s(t) - old_u64s;
|
||||
|
||||
if (b->sib_u64s[0] != U16_MAX && live_u64s_added < 0)
|
||||
b->sib_u64s[0] = max(0, (int) b->sib_u64s[0] + live_u64s_added);
|
||||
|
|
@ -323,26 +317,12 @@ static inline void btree_insert_entry_checks(struct btree_trans *trans,
|
|||
bch2_bkey_invalid(c, bkey_i_to_s_c(i->k), i->iter->btree_id));
|
||||
}
|
||||
|
||||
static int bch2_trans_journal_preres_get(struct btree_trans *trans)
|
||||
static noinline int
|
||||
bch2_trans_journal_preres_get_cold(struct btree_trans *trans, unsigned u64s)
|
||||
{
|
||||
struct bch_fs *c = trans->c;
|
||||
struct btree_insert_entry *i;
|
||||
unsigned u64s = 0;
|
||||
int ret;
|
||||
|
||||
trans_for_each_update(trans, i)
|
||||
if (0)
|
||||
u64s += jset_u64s(i->k->k.u64s);
|
||||
|
||||
if (!u64s)
|
||||
return 0;
|
||||
|
||||
ret = bch2_journal_preres_get(&c->journal,
|
||||
&trans->journal_preres, u64s,
|
||||
JOURNAL_RES_GET_NONBLOCK);
|
||||
if (ret != -EAGAIN)
|
||||
return ret;
|
||||
|
||||
bch2_trans_unlock(trans);
|
||||
|
||||
ret = bch2_journal_preres_get(&c->journal,
|
||||
|
|
@ -358,7 +338,7 @@ static int bch2_trans_journal_preres_get(struct btree_trans *trans)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int bch2_trans_journal_res_get(struct btree_trans *trans,
|
||||
static inline int bch2_trans_journal_res_get(struct btree_trans *trans,
|
||||
unsigned flags)
|
||||
{
|
||||
struct bch_fs *c = trans->c;
|
||||
|
|
@ -438,63 +418,43 @@ static inline bool update_has_nontrans_triggers(struct btree_insert_entry *i)
|
|||
(1U << i->iter->btree_id);
|
||||
}
|
||||
|
||||
/*
|
||||
* Get journal reservation, take write locks, and attempt to do btree update(s):
|
||||
*/
|
||||
static inline int do_btree_insert_at(struct btree_trans *trans,
|
||||
static noinline void bch2_btree_iter_unlock_noinline(struct btree_iter *iter)
|
||||
{
|
||||
__bch2_btree_iter_unlock(iter);
|
||||
}
|
||||
|
||||
static noinline void bch2_trans_mark_gc(struct btree_trans *trans)
|
||||
{
|
||||
struct bch_fs *c = trans->c;
|
||||
struct btree_insert_entry *i;
|
||||
unsigned mark_flags = trans->flags & BTREE_INSERT_BUCKET_INVALIDATE
|
||||
? BCH_BUCKET_MARK_BUCKET_INVALIDATE
|
||||
: 0;
|
||||
|
||||
if (unlikely(trans->flags & BTREE_INSERT_NOMARK))
|
||||
return;
|
||||
|
||||
trans_for_each_update(trans, i)
|
||||
if (gc_visited(c, gc_pos_btree_node(i->iter->l[0].b)))
|
||||
bch2_mark_update(trans, i, NULL,
|
||||
mark_flags|BCH_BUCKET_MARK_GC);
|
||||
}
|
||||
|
||||
static inline int
|
||||
bch2_trans_commit_write_locked(struct btree_trans *trans,
|
||||
struct btree_insert_entry **stopped_at)
|
||||
{
|
||||
struct bch_fs *c = trans->c;
|
||||
struct bch_fs_usage_online *fs_usage = NULL;
|
||||
struct btree_insert_entry *i;
|
||||
struct btree_iter *iter;
|
||||
unsigned mark_flags = trans->flags & BTREE_INSERT_BUCKET_INVALIDATE
|
||||
? BCH_BUCKET_MARK_BUCKET_INVALIDATE
|
||||
: 0;
|
||||
int ret;
|
||||
|
||||
trans_for_each_update(trans, i)
|
||||
BUG_ON(i->iter->uptodate >= BTREE_ITER_NEED_RELOCK);
|
||||
|
||||
/*
|
||||
* note: running triggers will append more updates to the list of
|
||||
* updates as we're walking it:
|
||||
*/
|
||||
trans_for_each_update(trans, i)
|
||||
if (likely(!(trans->flags & BTREE_INSERT_NOMARK)) &&
|
||||
update_has_trans_triggers(i)) {
|
||||
ret = bch2_trans_mark_update(trans, i->iter, i->k);
|
||||
if (ret == -EINTR)
|
||||
trace_trans_restart_mark(trans->ip);
|
||||
if (ret)
|
||||
goto out_clear_replicas;
|
||||
}
|
||||
|
||||
trans_for_each_iter(trans, iter) {
|
||||
if (iter->nodes_locked != iter->nodes_intent_locked) {
|
||||
BUG_ON(iter->flags & BTREE_ITER_KEEP_UNTIL_COMMIT);
|
||||
BUG_ON(trans->iters_live & (1ULL << iter->idx));
|
||||
__bch2_btree_iter_unlock(iter);
|
||||
}
|
||||
}
|
||||
|
||||
if (IS_ENABLED(CONFIG_BCACHEFS_DEBUG))
|
||||
trans_for_each_update(trans, i)
|
||||
btree_insert_entry_checks(trans, i);
|
||||
bch2_btree_trans_verify_locks(trans);
|
||||
|
||||
/*
|
||||
* No more updates can be added - sort updates so we can take write
|
||||
* locks in the correct order:
|
||||
*/
|
||||
btree_trans_sort_updates(trans);
|
||||
|
||||
btree_trans_lock_write(trans, true);
|
||||
|
||||
if (race_fault()) {
|
||||
ret = -EINTR;
|
||||
trace_trans_restart_fault_inject(trans->ip);
|
||||
goto out;
|
||||
return -EINTR;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -504,7 +464,7 @@ static inline int do_btree_insert_at(struct btree_trans *trans,
|
|||
*/
|
||||
ret = btree_trans_check_can_insert(trans, stopped_at);
|
||||
if (ret)
|
||||
goto out;
|
||||
return ret;
|
||||
|
||||
trans_for_each_update(trans, i) {
|
||||
if (!btree_node_type_needs_gc(i->iter->btree_id))
|
||||
|
|
@ -515,10 +475,11 @@ static inline int do_btree_insert_at(struct btree_trans *trans,
|
|||
fs_usage = bch2_fs_usage_scratch_get(c);
|
||||
}
|
||||
|
||||
/* Must be called under mark_lock: */
|
||||
if (!bch2_bkey_replicas_marked_locked(c,
|
||||
bkey_i_to_s_c(i->k), true)) {
|
||||
ret = BTREE_INSERT_NEED_MARK_REPLICAS;
|
||||
goto out;
|
||||
goto err;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -527,16 +488,17 @@ static inline int do_btree_insert_at(struct btree_trans *trans,
|
|||
* succeed:
|
||||
*/
|
||||
if (likely(!(trans->flags & BTREE_INSERT_JOURNAL_REPLAY))) {
|
||||
trans->journal_u64s = 0;
|
||||
|
||||
trans_for_each_update(trans, i)
|
||||
trans->journal_u64s += jset_u64s(i->k->k.u64s);
|
||||
|
||||
ret = bch2_trans_journal_res_get(trans, JOURNAL_RES_GET_NONBLOCK);
|
||||
ret = bch2_trans_journal_res_get(trans,
|
||||
JOURNAL_RES_GET_NONBLOCK);
|
||||
if (ret)
|
||||
goto out;
|
||||
goto err;
|
||||
}
|
||||
|
||||
/*
|
||||
* Not allowed to fail after we've gotten our journal reservation - we
|
||||
* have to use it:
|
||||
*/
|
||||
|
||||
if (!(trans->flags & BTREE_INSERT_JOURNAL_REPLAY)) {
|
||||
if (journal_seq_verify(c))
|
||||
trans_for_each_update(trans, i)
|
||||
|
|
@ -558,39 +520,122 @@ static inline int do_btree_insert_at(struct btree_trans *trans,
|
|||
if (fs_usage)
|
||||
bch2_trans_fs_usage_apply(trans, fs_usage);
|
||||
|
||||
if (likely(!(trans->flags & BTREE_INSERT_NOMARK)) &&
|
||||
unlikely(c->gc_pos.phase))
|
||||
trans_for_each_update(trans, i)
|
||||
if (gc_visited(c, gc_pos_btree_node(i->iter->l[0].b)))
|
||||
bch2_mark_update(trans, i, NULL,
|
||||
mark_flags|
|
||||
BCH_BUCKET_MARK_GC);
|
||||
if (unlikely(c->gc_pos.phase))
|
||||
bch2_trans_mark_gc(trans);
|
||||
|
||||
trans_for_each_update(trans, i)
|
||||
do_btree_insert_one(trans, i);
|
||||
out:
|
||||
BUG_ON(ret &&
|
||||
(trans->flags & BTREE_INSERT_JOURNAL_RESERVED) &&
|
||||
trans->journal_res.ref);
|
||||
|
||||
btree_trans_lock_write(trans, false);
|
||||
|
||||
err:
|
||||
if (fs_usage) {
|
||||
bch2_fs_usage_scratch_put(c, fs_usage);
|
||||
percpu_up_read(&c->mark_lock);
|
||||
}
|
||||
|
||||
bch2_journal_res_put(&c->journal, &trans->journal_res);
|
||||
out_clear_replicas:
|
||||
if (trans->fs_usage_deltas) {
|
||||
trans->fs_usage_deltas->used = 0;
|
||||
memset((void *) trans->fs_usage_deltas +
|
||||
offsetof(struct replicas_delta_list, memset_start), 0,
|
||||
(void *) &trans->fs_usage_deltas->memset_end -
|
||||
(void *) &trans->fs_usage_deltas->memset_start);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* Get journal reservation, take write locks, and attempt to do btree update(s):
|
||||
*/
|
||||
static inline int do_bch2_trans_commit(struct btree_trans *trans,
|
||||
struct btree_insert_entry **stopped_at)
|
||||
{
|
||||
struct btree_insert_entry *i;
|
||||
struct btree_iter *iter;
|
||||
unsigned idx, u64s, journal_preres_u64s = 0;
|
||||
int ret;
|
||||
|
||||
/*
|
||||
* note: running triggers will append more updates to the list of
|
||||
* updates as we're walking it:
|
||||
*/
|
||||
trans_for_each_update(trans, i) {
|
||||
/* we know trans->nounlock won't be set here: */
|
||||
if (unlikely(!(i->iter->locks_want < 1
|
||||
? __bch2_btree_iter_upgrade(i->iter, 1)
|
||||
: i->iter->uptodate <= BTREE_ITER_NEED_PEEK))) {
|
||||
trace_trans_restart_upgrade(trans->ip);
|
||||
return -EINTR;
|
||||
}
|
||||
|
||||
if (likely(!(trans->flags & BTREE_INSERT_NOMARK)) &&
|
||||
update_has_trans_triggers(i)) {
|
||||
ret = bch2_trans_mark_update(trans, i->iter, i->k);
|
||||
if (unlikely(ret)) {
|
||||
if (ret == -EINTR)
|
||||
trace_trans_restart_mark(trans->ip);
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
u64s = jset_u64s(i->k->k.u64s);
|
||||
if (0)
|
||||
journal_preres_u64s += u64s;
|
||||
trans->journal_u64s += u64s;
|
||||
}
|
||||
|
||||
ret = bch2_journal_preres_get(&trans->c->journal,
|
||||
&trans->journal_preres, journal_preres_u64s,
|
||||
JOURNAL_RES_GET_NONBLOCK);
|
||||
if (unlikely(ret == -EAGAIN))
|
||||
ret = bch2_trans_journal_preres_get_cold(trans,
|
||||
journal_preres_u64s);
|
||||
if (unlikely(ret))
|
||||
return ret;
|
||||
|
||||
/*
|
||||
* Can't be holding any read locks when we go to take write locks:
|
||||
*
|
||||
* note - this must be done after bch2_trans_journal_preres_get_cold()
|
||||
* or anything else that might call bch2_trans_relock(), since that
|
||||
* would just retake the read locks:
|
||||
*/
|
||||
trans_for_each_iter_all(trans, iter) {
|
||||
if (iter->nodes_locked != iter->nodes_intent_locked) {
|
||||
EBUG_ON(iter->flags & BTREE_ITER_KEEP_UNTIL_COMMIT);
|
||||
EBUG_ON(trans->iters_live & (1ULL << iter->idx));
|
||||
bch2_btree_iter_unlock_noinline(iter);
|
||||
}
|
||||
}
|
||||
|
||||
if (IS_ENABLED(CONFIG_BCACHEFS_DEBUG))
|
||||
trans_for_each_update(trans, i)
|
||||
btree_insert_entry_checks(trans, i);
|
||||
bch2_btree_trans_verify_locks(trans);
|
||||
|
||||
/*
|
||||
* No more updates can be added - sort updates so we can take write
|
||||
* locks in the correct order:
|
||||
*/
|
||||
btree_trans_sort_updates(trans);
|
||||
|
||||
btree_trans_lock_write(trans, true);
|
||||
ret = bch2_trans_commit_write_locked(trans, stopped_at);
|
||||
btree_trans_lock_write(trans, false);
|
||||
|
||||
/*
|
||||
* Drop journal reservation after dropping write locks, since dropping
|
||||
* the journal reservation may kick off a journal write:
|
||||
*/
|
||||
bch2_journal_res_put(&trans->c->journal, &trans->journal_res);
|
||||
|
||||
if (unlikely(ret))
|
||||
return ret;
|
||||
|
||||
if (trans->flags & BTREE_INSERT_NOUNLOCK)
|
||||
trans->nounlock = true;
|
||||
|
||||
trans_for_each_update_sorted(trans, i, idx)
|
||||
if (!same_leaf_as_prev(trans, idx))
|
||||
bch2_foreground_maybe_merge(trans->c, i->iter,
|
||||
0, trans->flags);
|
||||
|
||||
trans->nounlock = false;
|
||||
|
||||
trans_for_each_update(trans, i)
|
||||
bch2_btree_iter_downgrade(i->iter);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static noinline
|
||||
|
|
@ -698,92 +743,12 @@ int bch2_trans_commit_error(struct btree_trans *trans,
|
|||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* __bch_btree_insert_at - insert keys at given iterator positions
|
||||
*
|
||||
* This is main entry point for btree updates.
|
||||
*
|
||||
* Return values:
|
||||
* -EINTR: locking changed, this function should be called again. Only returned
|
||||
* if passed BTREE_INSERT_ATOMIC.
|
||||
* -EROFS: filesystem read only
|
||||
* -EIO: journal or btree node IO error
|
||||
*/
|
||||
static int __bch2_trans_commit(struct btree_trans *trans,
|
||||
struct btree_insert_entry **stopped_at)
|
||||
static noinline int
|
||||
bch2_trans_commit_get_rw_cold(struct btree_trans *trans)
|
||||
{
|
||||
struct bch_fs *c = trans->c;
|
||||
struct btree_insert_entry *i;
|
||||
unsigned iter;
|
||||
int ret;
|
||||
|
||||
trans_for_each_update(trans, i) {
|
||||
if (!bch2_btree_iter_upgrade(i->iter, 1)) {
|
||||
trace_trans_restart_upgrade(trans->ip);
|
||||
ret = -EINTR;
|
||||
goto err;
|
||||
}
|
||||
|
||||
ret = btree_iter_err(i->iter);
|
||||
if (ret)
|
||||
goto err;
|
||||
}
|
||||
|
||||
ret = do_btree_insert_at(trans, stopped_at);
|
||||
if (unlikely(ret))
|
||||
goto err;
|
||||
|
||||
if (trans->flags & BTREE_INSERT_NOUNLOCK)
|
||||
trans->nounlock = true;
|
||||
|
||||
trans_for_each_update_sorted(trans, i, iter)
|
||||
if (!same_leaf_as_prev(trans, iter))
|
||||
bch2_foreground_maybe_merge(c, i->iter,
|
||||
0, trans->flags);
|
||||
|
||||
trans->nounlock = false;
|
||||
|
||||
trans_for_each_update(trans, i)
|
||||
bch2_btree_iter_downgrade(i->iter);
|
||||
err:
|
||||
/* make sure we didn't drop or screw up locks: */
|
||||
bch2_btree_trans_verify_locks(trans);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int bch2_trans_commit(struct btree_trans *trans,
|
||||
struct disk_reservation *disk_res,
|
||||
u64 *journal_seq,
|
||||
unsigned flags)
|
||||
{
|
||||
struct bch_fs *c = trans->c;
|
||||
struct btree_insert_entry *i = NULL;
|
||||
struct btree_iter *iter;
|
||||
unsigned orig_nr_updates = trans->nr_updates;
|
||||
unsigned orig_mem_top = trans->mem_top;
|
||||
int ret = 0;
|
||||
|
||||
if (!trans->nr_updates)
|
||||
goto out_noupdates;
|
||||
|
||||
/* for the sake of sanity: */
|
||||
BUG_ON(trans->nr_updates > 1 && !(flags & BTREE_INSERT_ATOMIC));
|
||||
|
||||
if (flags & BTREE_INSERT_GC_LOCK_HELD)
|
||||
lockdep_assert_held(&c->gc_lock);
|
||||
|
||||
if (!trans->commit_start)
|
||||
trans->commit_start = local_clock();
|
||||
|
||||
memset(&trans->journal_res, 0, sizeof(trans->journal_res));
|
||||
memset(&trans->journal_preres, 0, sizeof(trans->journal_preres));
|
||||
trans->disk_res = disk_res;
|
||||
trans->journal_seq = journal_seq;
|
||||
trans->flags = flags;
|
||||
|
||||
if (unlikely(!(trans->flags & BTREE_INSERT_NOCHECK_RW) &&
|
||||
!percpu_ref_tryget(&c->writes))) {
|
||||
if (likely(!(trans->flags & BTREE_INSERT_LAZY_RW)))
|
||||
return -EROFS;
|
||||
|
||||
|
|
@ -794,35 +759,62 @@ int bch2_trans_commit(struct btree_trans *trans,
|
|||
return ret;
|
||||
|
||||
percpu_ref_get(&c->writes);
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (!bch2_trans_relock(trans)) {
|
||||
ret = -EINTR;
|
||||
goto err;
|
||||
}
|
||||
int __bch2_trans_commit(struct btree_trans *trans)
|
||||
{
|
||||
struct btree_insert_entry *i = NULL;
|
||||
struct btree_iter *iter;
|
||||
unsigned orig_nr_updates = trans->nr_updates;
|
||||
unsigned orig_mem_top = trans->mem_top;
|
||||
int ret = 0;
|
||||
|
||||
if (!trans->nr_updates)
|
||||
goto out_noupdates;
|
||||
|
||||
/* for the sake of sanity: */
|
||||
EBUG_ON(trans->nr_updates > 1 && !(trans->flags & BTREE_INSERT_ATOMIC));
|
||||
|
||||
if (trans->flags & BTREE_INSERT_GC_LOCK_HELD)
|
||||
lockdep_assert_held(&trans->c->gc_lock);
|
||||
|
||||
memset(&trans->journal_preres, 0, sizeof(trans->journal_preres));
|
||||
|
||||
if (!(trans->flags & BTREE_INSERT_NOCHECK_RW) &&
|
||||
unlikely(!percpu_ref_tryget(&trans->c->writes))) {
|
||||
ret = bch2_trans_commit_get_rw_cold(trans);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
retry:
|
||||
ret = bch2_trans_journal_preres_get(trans);
|
||||
if (ret)
|
||||
goto err;
|
||||
memset(&trans->journal_res, 0, sizeof(trans->journal_res));
|
||||
trans->journal_u64s = 0;
|
||||
|
||||
ret = do_bch2_trans_commit(trans, &i);
|
||||
|
||||
if (trans->fs_usage_deltas) {
|
||||
trans->fs_usage_deltas->used = 0;
|
||||
memset((void *) trans->fs_usage_deltas +
|
||||
offsetof(struct replicas_delta_list, memset_start), 0,
|
||||
(void *) &trans->fs_usage_deltas->memset_end -
|
||||
(void *) &trans->fs_usage_deltas->memset_start);
|
||||
}
|
||||
|
||||
/* make sure we didn't drop or screw up locks: */
|
||||
bch2_btree_trans_verify_locks(trans);
|
||||
|
||||
ret = __bch2_trans_commit(trans, &i);
|
||||
if (ret)
|
||||
goto err;
|
||||
out:
|
||||
bch2_journal_preres_put(&c->journal, &trans->journal_preres);
|
||||
bch2_journal_preres_put(&trans->c->journal, &trans->journal_preres);
|
||||
|
||||
if (unlikely(!(trans->flags & BTREE_INSERT_NOCHECK_RW)))
|
||||
percpu_ref_put(&c->writes);
|
||||
if (likely(!(trans->flags & BTREE_INSERT_NOCHECK_RW)))
|
||||
percpu_ref_put(&trans->c->writes);
|
||||
out_noupdates:
|
||||
if (!ret && trans->commit_start) {
|
||||
bch2_time_stats_update(&c->times[BCH_TIME_btree_update],
|
||||
trans->commit_start);
|
||||
trans->commit_start = 0;
|
||||
}
|
||||
EBUG_ON(!(trans->flags & BTREE_INSERT_ATOMIC) && ret == -EINTR);
|
||||
|
||||
BUG_ON(!(trans->flags & BTREE_INSERT_ATOMIC) && ret == -EINTR);
|
||||
|
||||
trans_for_each_iter(trans, iter)
|
||||
trans_for_each_iter_all(trans, iter)
|
||||
iter->flags &= ~BTREE_ITER_KEEP_UNTIL_COMMIT;
|
||||
|
||||
if (!ret) {
|
||||
|
|
@ -836,18 +828,16 @@ int bch2_trans_commit(struct btree_trans *trans,
|
|||
err:
|
||||
ret = bch2_trans_commit_error(trans, i, ret);
|
||||
|
||||
/* free updates and memory used by triggers, they'll be reexecuted: */
|
||||
trans->nr_updates = orig_nr_updates;
|
||||
trans->mem_top = orig_mem_top;
|
||||
|
||||
/* can't loop if it was passed in and we changed it: */
|
||||
if (unlikely(trans->flags & BTREE_INSERT_NO_CLEAR_REPLICAS) && !ret)
|
||||
ret = -EINTR;
|
||||
|
||||
if (!ret)
|
||||
goto retry;
|
||||
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
/* free updates and memory used by triggers, they'll be reexecuted: */
|
||||
trans->nr_updates = orig_nr_updates;
|
||||
trans->mem_top = orig_mem_top;
|
||||
goto retry;
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -2720,20 +2720,26 @@ long bch2_fallocate_dispatch(struct file *file, int mode,
|
|||
loff_t offset, loff_t len)
|
||||
{
|
||||
struct bch_inode_info *inode = file_bch_inode(file);
|
||||
struct bch_fs *c = inode->v.i_sb->s_fs_info;
|
||||
long ret;
|
||||
|
||||
if (!percpu_ref_tryget(&c->writes))
|
||||
return -EROFS;
|
||||
|
||||
if (!(mode & ~(FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE)))
|
||||
return bchfs_fallocate(inode, mode, offset, len);
|
||||
ret = bchfs_fallocate(inode, mode, offset, len);
|
||||
else if (mode == (FALLOC_FL_PUNCH_HOLE|FALLOC_FL_KEEP_SIZE))
|
||||
ret = bchfs_fpunch(inode, offset, len);
|
||||
else if (mode == FALLOC_FL_INSERT_RANGE)
|
||||
ret = bchfs_fcollapse_finsert(inode, offset, len, true);
|
||||
else if (mode == FALLOC_FL_COLLAPSE_RANGE)
|
||||
ret = bchfs_fcollapse_finsert(inode, offset, len, false);
|
||||
else
|
||||
ret = -EOPNOTSUPP;
|
||||
|
||||
if (mode == (FALLOC_FL_PUNCH_HOLE|FALLOC_FL_KEEP_SIZE))
|
||||
return bchfs_fpunch(inode, offset, len);
|
||||
percpu_ref_put(&c->writes);
|
||||
|
||||
if (mode == FALLOC_FL_INSERT_RANGE)
|
||||
return bchfs_fcollapse_finsert(inode, offset, len, true);
|
||||
|
||||
if (mode == FALLOC_FL_COLLAPSE_RANGE)
|
||||
return bchfs_fcollapse_finsert(inode, offset, len, false);
|
||||
|
||||
return -EOPNOTSUPP;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void mark_range_unallocated(struct bch_inode_info *inode,
|
||||
|
|
|
|||
|
|
@ -310,6 +310,7 @@ int bch2_extent_update(struct btree_trans *trans,
|
|||
bch2_trans_update(trans, iter, k);
|
||||
|
||||
ret = bch2_trans_commit(trans, disk_res, journal_seq,
|
||||
BTREE_INSERT_NOCHECK_RW|
|
||||
BTREE_INSERT_NOFAIL|
|
||||
BTREE_INSERT_ATOMIC|
|
||||
BTREE_INSERT_USE_RESERVE);
|
||||
|
|
|
|||
|
|
@ -271,7 +271,7 @@ static inline void bch2_journal_res_put(struct journal *j,
|
|||
if (!res->ref)
|
||||
return;
|
||||
|
||||
lock_release(&j->res_map, _RET_IP_);
|
||||
lock_release(&j->res_map, _THIS_IP_);
|
||||
|
||||
while (res->u64s)
|
||||
bch2_journal_add_entry(j, res,
|
||||
|
|
|
|||
|
|
@ -166,6 +166,9 @@ s64 bch2_remap_range(struct bch_fs *c,
|
|||
u64 src_done, dst_done;
|
||||
int ret = 0, ret2 = 0;
|
||||
|
||||
if (!percpu_ref_tryget(&c->writes))
|
||||
return -EROFS;
|
||||
|
||||
if (!(c->sb.features & (1ULL << BCH_FEATURE_REFLINK))) {
|
||||
mutex_lock(&c->sb_lock);
|
||||
if (!(c->sb.features & (1ULL << BCH_FEATURE_REFLINK))) {
|
||||
|
|
@ -295,5 +298,7 @@ s64 bch2_remap_range(struct bch_fs *c,
|
|||
|
||||
ret = bch2_trans_exit(&trans) ?: ret;
|
||||
|
||||
percpu_ref_put(&c->writes);
|
||||
|
||||
return dst_done ?: ret ?: ret2;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue