diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2025-05-05 13:25:15 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2025-05-05 13:25:15 +0800 |
| commit | fba4aafaba8a6ca2bb42e854c37ff9a685ddfd71 (patch) | |
| tree | 4ba74ac925fc7d7b131fa54239b43c00a42a3429 /mm/migrate.c | |
| parent | 5b39aa368bcfe193666ad4a68ef55f41dfd74028 (diff) | |
| parent | 92a09c47464d040866cf2b4cd052bc60555185fb (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux v6.15-rc5
Merge mainline to pick up bcachefs poly1305 patch 4bf4b5046de0
("bcachefs: use library APIs for ChaCha20 and Poly1305"). This
is a prerequisite for removing the poly1305 shash algorithm.
Diffstat (limited to 'mm/migrate.c')
| -rw-r--r-- | mm/migrate.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index f3ee6d8d5e2e..676d9cfc7059 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -845,9 +845,11 @@ static int __buffer_migrate_folio(struct address_space *mapping, return -EAGAIN; if (check_refs) { - bool busy; + bool busy, migrating; bool invalidated = false; + migrating = test_and_set_bit_lock(BH_Migrate, &head->b_state); + VM_WARN_ON_ONCE(migrating); recheck_buffers: busy = false; spin_lock(&mapping->i_private_lock); @@ -859,12 +861,12 @@ recheck_buffers: } bh = bh->b_this_page; } while (bh != head); + spin_unlock(&mapping->i_private_lock); if (busy) { if (invalidated) { rc = -EAGAIN; goto unlock_buffers; } - spin_unlock(&mapping->i_private_lock); invalidate_bh_lrus(); invalidated = true; goto recheck_buffers; @@ -883,7 +885,7 @@ recheck_buffers: unlock_buffers: if (check_refs) - spin_unlock(&mapping->i_private_lock); + clear_bit_unlock(BH_Migrate, &head->b_state); bh = head; do { unlock_buffer(bh); |