From: Matthew Wilcox <willy@infradead.org>
To: linux-fsdevel@vger.kernel.org
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 21/25] mm: Add DEFINE_READAHEAD
Date: Wed, 29 Apr 2020 06:36:53 -0700 [thread overview]
Message-ID: <20200429133657.22632-22-willy@infradead.org> (raw)
In-Reply-To: <20200429133657.22632-1-willy@infradead.org>
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Allow for a more concise definition of a struct readahead_control.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
include/linux/pagemap.h | 7 +++++++
mm/readahead.c | 6 +-----
2 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 1169e2428dd7..ff5bf10829a6 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -684,6 +684,13 @@ struct readahead_control {
unsigned int _batch_count;
};
+#define DEFINE_READAHEAD(rac, f, m, i) \
+ struct readahead_control rac = { \
+ .file = f, \
+ .mapping = m, \
+ ._index = i, \
+ }
+
/**
* readahead_page - Get the next page to read.
* @rac: The current readahead request.
diff --git a/mm/readahead.c b/mm/readahead.c
index 3c9a8dd7c56c..2126a2754e22 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -179,11 +179,7 @@ void page_cache_readahead_unbounded(struct address_space *mapping,
{
LIST_HEAD(page_pool);
gfp_t gfp_mask = readahead_gfp_mask(mapping);
- struct readahead_control rac = {
- .mapping = mapping,
- .file = file,
- ._index = index,
- };
+ DEFINE_READAHEAD(rac, file, mapping, index);
unsigned long i;
/*
--
2.26.2
next prev parent reply other threads:[~2020-04-29 13:40 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-29 13:36 [PATCH v3 00/25] Large pages in the page cache Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 01/25] mm: Allow hpages to be arbitrary order Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 02/25] mm: Introduce thp_size Matthew Wilcox
2020-05-06 17:59 ` Yang Shi
2020-04-29 13:36 ` [PATCH v3 03/25] mm: Introduce thp_order Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 04/25] mm: Introduce offset_in_thp Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 05/25] fs: Add a filesystem flag for large pages Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 06/25] fs: Introduce i_blocks_per_page Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 07/25] fs: Make page_mkwrite_check_truncate thp-aware Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 08/25] fs: Support THPs in zero_user_segments Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 09/25] bio: Add bio_for_each_thp_segment_all Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 10/25] iomap: Support arbitrarily many blocks per page Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 11/25] iomap: Support large pages in iomap_adjust_read_range Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 12/25] iomap: Support large pages in read paths Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 13/25] iomap: Support large pages in write paths Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 14/25] iomap: Inline data shouldn't see large pages Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 15/25] xfs: Support " Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 16/25] mm: Make prep_transhuge_page return its argument Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 17/25] mm: Add __page_cache_alloc_order Matthew Wilcox
2020-05-06 18:03 ` Yang Shi
2020-06-07 3:08 ` Matthew Wilcox
2020-06-09 17:38 ` Yang Shi
2020-04-29 13:36 ` [PATCH v3 18/25] mm: Allow large pages to be added to the page cache Matthew Wilcox
2020-05-04 3:10 ` Matthew Wilcox
2020-05-06 18:32 ` Yang Shi
2020-06-07 3:04 ` Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 19/25] mm: Allow large pages to be removed from " Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 20/25] mm: Remove page fault assumption of compound page size Matthew Wilcox
2020-04-29 13:36 ` Matthew Wilcox [this message]
2020-04-29 13:36 ` [PATCH v3 22/25] mm: Make page_cache_readahead_unbounded take a readahead_control Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 23/25] mm: Make __do_page_cache_readahead " Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 24/25] mm: Add large page readahead Matthew Wilcox
2020-04-29 13:36 ` [PATCH v3 25/25] mm: Align THP mappings for non-DAX Matthew Wilcox
2020-04-29 15:40 ` [PATCH v3 00/25] Large pages in the page cache Kirill A. Shutemov
2020-04-29 15:45 ` Kirill A. Shutemov
2020-04-30 11:34 ` Matthew Wilcox
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