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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2018-08-18 00:49:55 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-18 01:20:32 +0200 |
| commit | 6b51e88199ca4f75ff647eff28efd30bfcb08dc4 (patch) | |
| tree | 6c1411444d28a3a77c36bfddb92576b43469245f /mm/vmacache.c | |
| parent | mm/list_lru.c: pass struct list_lru_node* as an argument to __list_lru_walk_o... (diff) | |
| download | linux-6b51e88199ca4f75ff647eff28efd30bfcb08dc4.tar.xz linux-6b51e88199ca4f75ff647eff28efd30bfcb08dc4.zip | |
mm/list_lru: introduce list_lru_shrink_walk_irq()
Provide list_lru_shrink_walk_irq() and let it behave like
list_lru_walk_one() except that it locks the spinlock with
spin_lock_irq(). This is used by scan_shadow_nodes() because its lock
nests within the i_pages lock which is acquired with IRQ. This change
allows to use proper locking promitives instead hand crafted
lock_irq_disable() plus spin_lock().
There is no EXPORT_SYMBOL provided because the current user is in-kernel
only.
Add list_lru_shrink_walk_irq() which acquires the spinlock with the
proper locking primitives.
Link: http://lkml.kernel.org/r/20180716111921.5365-5-bigeasy@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmacache.c')
0 files changed, 0 insertions, 0 deletions