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| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2025-05-02 16:31:35 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2025-05-02 16:31:35 +0200 |
| commit | 8e17493ea2d1c9f72e5e31160f75f8be56f79ffb (patch) | |
| tree | 0a3a6fbb8c1ec61bb08a9f612826521b5e15c1d9 /mm/migrate.c | |
| parent | 9c32cda43eb78f78c73aee4aa344b777714e259b (diff) | |
| parent | b1852c5de2f2a37dd4462f7837c9e3e678f9e546 (diff) | |
Merge tag 'i2c-host-fixes-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current
i2c-host-fixes for v6.15-rc5
- imx-lpi2c: fix error handling sequence in probe
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); |