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-rw-r--r--fs/bcachefs/debug.c8
-rw-r--r--fs/bcachefs/seqmutex.h11
2 files changed, 6 insertions, 13 deletions
diff --git a/fs/bcachefs/debug.c b/fs/bcachefs/debug.c
index 51cbf3928361..8ec2d44e4956 100644
--- a/fs/bcachefs/debug.c
+++ b/fs/bcachefs/debug.c
@@ -575,7 +575,6 @@ static ssize_t bch2_btree_transactions_read(struct file *file, char __user *buf,
struct bch_fs *c = i->c;
struct btree_trans *trans;
ssize_t ret = 0;
- u32 seq;
i->ubuf = buf;
i->size = size;
@@ -589,8 +588,7 @@ restart:
continue;
closure_get(&trans->ref);
- seq = seqmutex_seq(&c->btree_trans_lock);
- seqmutex_unlock(&c->btree_trans_lock);
+ u32 seq = seqmutex_unlock(&c->btree_trans_lock);
ret = flush_buf(i);
if (ret) {
@@ -811,7 +809,6 @@ static ssize_t bch2_btree_deadlock_read(struct file *file, char __user *buf,
struct bch_fs *c = i->c;
struct btree_trans *trans;
ssize_t ret = 0;
- u32 seq;
i->ubuf = buf;
i->size = size;
@@ -828,8 +825,7 @@ restart:
continue;
closure_get(&trans->ref);
- seq = seqmutex_seq(&c->btree_trans_lock);
- seqmutex_unlock(&c->btree_trans_lock);
+ u32 seq = seqmutex_unlock(&c->btree_trans_lock);
ret = flush_buf(i);
if (ret) {
diff --git a/fs/bcachefs/seqmutex.h b/fs/bcachefs/seqmutex.h
index c1860d8163fb..c4b3d8d3f414 100644
--- a/fs/bcachefs/seqmutex.h
+++ b/fs/bcachefs/seqmutex.h
@@ -19,17 +19,14 @@ static inline bool seqmutex_trylock(struct seqmutex *lock)
static inline void seqmutex_lock(struct seqmutex *lock)
{
mutex_lock(&lock->lock);
-}
-
-static inline void seqmutex_unlock(struct seqmutex *lock)
-{
lock->seq++;
- mutex_unlock(&lock->lock);
}
-static inline u32 seqmutex_seq(struct seqmutex *lock)
+static inline u32 seqmutex_unlock(struct seqmutex *lock)
{
- return lock->seq;
+ u32 seq = lock->seq;
+ mutex_unlock(&lock->lock);
+ return seq;
}
static inline bool seqmutex_relock(struct seqmutex *lock, u32 seq)