Re: [PATCH 08/23] block: implement add_bdi_stat()
From: Jan Kara <jack@suse.cz>
Date: 2013-08-05 11:21:19
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linux-fsdevel, lkml
On Sun 04-08-13 05:17:10, Kirill A. Shutemov wrote:
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>
Looks good. You can add: Reviewed-by: Jan Kara <jack@suse.cz> Honza
quoted hunk ↗ jump to hunk
--- 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
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