The patch titled
Subject: mm: workingset: make shadow_lru_isolate() use locking suffix
has been removed from the -mm tree. Its filename was
mm-workingset-make-shadow_lru_isolate-use-locking-suffix.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Subject: mm: workingset: make shadow_lru_isolate() use locking suffix
shadow_lru_isolate() disables interrupts and acquires a lock. It could
use spin_lock_irq() instead. It also uses local_irq_enable() while it
could use spin_unlock_irq()/xa_unlock_irq().
Use proper suffix for lock/unlock in order to enable/disable interrupts
during release/acquire of a lock.
Link: http://lkml.kernel.org/r/20180622151221.28167-3-bigeasy@xxxxxxxxxxxxx
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Vladimir Davydov <vdavydov.dev@xxxxxxxxx>
Cc: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/workingset.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
--- a/mm/workingset.c~mm-workingset-make-shadow_lru_isolate-use-locking-suffix
+++ a/mm/workingset.c
@@ -431,7 +431,7 @@ static enum lru_status shadow_lru_isolat
/* Coming from the list, invert the lock order */
if (!xa_trylock(&mapping->i_pages)) {
- spin_unlock(lru_lock);
+ spin_unlock_irq(lru_lock);
ret = LRU_RETRY;
goto out;
}
@@ -469,13 +469,11 @@ static enum lru_status shadow_lru_isolat
workingset_lookup_update(mapping));
out_invalid:
- xa_unlock(&mapping->i_pages);
+ xa_unlock_irq(&mapping->i_pages);
ret = LRU_REMOVED_RETRY;
out:
- local_irq_enable();
cond_resched();
- local_irq_disable();
- spin_lock(lru_lock);
+ spin_lock_irq(lru_lock);
return ret;
}
_
Patches currently in -mm which might be from bigeasy@xxxxxxxxxxxxx are
bdi-use-refcount_t-for-reference-counting-instead-atomic_t.patch
userns-use-refcount_t-for-reference-counting-instead-atomic_t.patch
