[PATCH 08/23] block: implement add_bdi_stat()
From: Kirill A. Shutemov <hidden>
Date: 2013-08-04 02:17:10
Also in:
linux-fsdevel, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: "Kirill A. Shutemov" <redacted> We're going to add/remove a number of page cache entries at once. This patch implements add_bdi_stat() which adjusts bdi stats by arbitrary amount. It's required for batched page cache manipulations. Signed-off-by: Kirill A. Shutemov <redacted> --- include/linux/backing-dev.h | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index c388155..7060180 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h@@ -166,6 +166,16 @@ static inline void __dec_bdi_stat(struct backing_dev_info *bdi, __add_bdi_stat(bdi, item, -1); } +static inline void add_bdi_stat(struct backing_dev_info *bdi, + enum bdi_stat_item item, s64 amount) +{ + unsigned long flags; + + local_irq_save(flags); + __add_bdi_stat(bdi, item, amount); + local_irq_restore(flags); +} + static inline void dec_bdi_stat(struct backing_dev_info *bdi, enum bdi_stat_item item) {
--
1.8.3.2
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>