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From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: Andrea Arcangeli <aarcange@redhat.com>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>,
	Hugh Dickins <hughd@google.com>,
	Wu Fengguang <fengguang.wu@intel.com>, Jan Kara <jack@suse.cz>,
	Mel Gorman <mgorman@suse.de>,
	linux-mm@kvack.org, Andi Kleen <ak@linux.intel.com>,
	Matthew Wilcox <willy@linux.intel.com>,
	"Kirill A. Shutemov" <kirill@shutemov.name>,
	Hillf Danton <dhillf@gmail.com>, Dave Hansen <dave@sr71.net>,
	Ning Qu <quning@google.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Subject: [PATCHv6 09/22] block: implement add_bdi_stat()
Date: Mon, 23 Sep 2013 15:05:37 +0300	[thread overview]
Message-ID: <1379937950-8411-10-git-send-email-kirill.shutemov@linux.intel.com> (raw)
In-Reply-To: <1379937950-8411-1-git-send-email-kirill.shutemov@linux.intel.com>

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 <kirill.shutemov@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
---
 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 5f66d519a7..39acfa974b 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)
 {
-- 
1.8.4.rc3


  parent reply	other threads:[~2013-09-23 12:11 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-23 12:05 [PATCHv6 00/22] Transparent huge page cache: phase 1, everything but mmap() Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 01/22] mm: implement zero_huge_user_segment and friends Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 02/22] radix-tree: implement preload for multiple contiguous elements Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 03/22] memcg, thp: charge huge cache pages Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 04/22] thp: compile-time and sysfs knob for thp pagecache Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 05/22] thp, mm: introduce mapping_can_have_hugepages() predicate Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 06/22] thp: represent file thp pages in meminfo and friends Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 07/22] thp, mm: rewrite add_to_page_cache_locked() to support huge pages Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 08/22] mm: trace filemap: dump page order Kirill A. Shutemov
2013-09-23 12:05 ` Kirill A. Shutemov [this message]
2013-09-23 12:05 ` [PATCHv6 10/22] thp, mm: rewrite delete_from_page_cache() to support huge pages Kirill A. Shutemov
2013-09-25 20:02   ` Ning Qu
2013-09-23 12:05 ` [PATCHv6 11/22] thp, mm: warn if we try to use replace_page_cache_page() with THP Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 12/22] thp, mm: add event counters for huge page alloc on file write or read Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 13/22] mm, vfs: introduce i_split_sem Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 14/22] thp, mm: allocate huge pages in grab_cache_page_write_begin() Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 15/22] thp, mm: naive support of thp in generic_perform_write Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 16/22] thp, mm: handle transhuge pages in do_generic_file_read() Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 17/22] thp, libfs: initial thp support Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 18/22] truncate: support huge pages Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 19/22] thp: handle file pages in split_huge_page() Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 20/22] thp: wait_split_huge_page(): serialize over i_mmap_mutex too Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 21/22] thp, mm: split huge page on mmap file page Kirill A. Shutemov
2013-09-23 12:05 ` [PATCHv6 22/22] ramfs: enable transparent huge page cache Kirill A. Shutemov
2013-09-24 23:37 ` [PATCHv6 00/22] Transparent huge page cache: phase 1, everything but mmap() Andrew Morton
2013-09-24 23:49   ` Andi Kleen
2013-09-24 23:58     ` Andrew Morton
2013-09-25 11:15       ` Kirill A. Shutemov
2013-09-25 15:05         ` Andi Kleen
2013-09-26 18:30     ` Zach Brown
2013-09-26 19:05       ` Andi Kleen
2013-09-30 10:13     ` Mel Gorman
2013-09-30 16:05       ` Andi Kleen
2013-09-25  9:51   ` Kirill A. Shutemov
2013-09-25 23:29     ` Dave Chinner
2013-10-14 13:56       ` Kirill A. Shutemov
2013-09-30 10:02   ` Mel Gorman
2013-09-30 10:10     ` Mel Gorman
2013-09-30 18:07       ` Ning Qu
2013-09-30 18:51       ` Andi Kleen
2013-10-01  8:38         ` Mel Gorman
2013-10-01 17:11           ` Ning Qu
2013-10-14 14:27           ` Kirill A. Shutemov
2013-09-30 15:27     ` Dave Hansen
2013-09-30 18:05       ` Ning Qu
     [not found] ` <CACz4_2drFs5LsM8mTFNOWGHAs0QbsNfHAhiBXJ7jM3qkGerd5w@mail.gmail.com>
2013-09-25  9:23   ` Kirill A. Shutemov
2013-09-26 21:13 ` Dave Hansen

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