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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2022-08-22 06:08:53 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-23 00:09:39 +0300 |
| commit | e3738c6909d69e980d8b56d33df2e438a2c1c798 (patch) | |
| tree | e2b2b42ed3b76430627259f6566f12d907d9cd90 /fs/bcachefs/six.c | |
| parent | 2e27f6567b2662a2f7440a651e007ebc77cdcc7a (diff) | |
| download | linux-e3738c6909d69e980d8b56d33df2e438a2c1c798.tar.xz | |
six locks: Improve six_lock_count
six_lock_count now counts up whether a write lock held, and this patch
now also correctly counts six_lock->intent_lock_recurse.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Diffstat (limited to 'fs/bcachefs/six.c')
| -rw-r--r-- | fs/bcachefs/six.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/bcachefs/six.c b/fs/bcachefs/six.c index 9dd4b71e63ab..464b1313d358 100644 --- a/fs/bcachefs/six.c +++ b/fs/bcachefs/six.c @@ -764,15 +764,19 @@ EXPORT_SYMBOL_GPL(six_lock_pcpu_alloc); */ struct six_lock_count six_lock_counts(struct six_lock *lock) { - struct six_lock_count ret = { 0, lock->state.intent_lock }; + struct six_lock_count ret; + + ret.n[SIX_LOCK_read] = 0; + ret.n[SIX_LOCK_intent] = lock->state.intent_lock + lock->intent_lock_recurse; + ret.n[SIX_LOCK_write] = lock->state.seq & 1; if (!lock->readers) - ret.read += lock->state.read_lock; + ret.n[SIX_LOCK_read] += lock->state.read_lock; else { int cpu; for_each_possible_cpu(cpu) - ret.read += *per_cpu_ptr(lock->readers, cpu); + ret.n[SIX_LOCK_read] += *per_cpu_ptr(lock->readers, cpu); } return ret; |