From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
David Howells <dhowells@redhat.com>,
linux-mm@kvack.org, linux-fsdevel@vger.kernel.org,
Eric Biggers <ebiggers@google.com>
Subject: [PATCH 2/9] mm/readahead: Add DEFINE_READAHEAD
Date: Thu, 3 Sep 2020 15:08:37 +0100 [thread overview]
Message-ID: <20200903140844.14194-3-willy@infradead.org> (raw)
In-Reply-To: <20200903140844.14194-1-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 7de11dcd534d..19bba4360436 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -749,6 +749,13 @@ 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;
/*
--
2.28.0
next prev parent reply other threads:[~2020-09-03 14:58 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-03 14:08 [PATCH 0/9] Readahead patches for 5.9/5.10 Matthew Wilcox (Oracle)
2020-09-03 14:08 ` [PATCH 1/9] Fix khugepaged's request size in collapse_file Matthew Wilcox (Oracle)
2020-09-03 14:08 ` Matthew Wilcox (Oracle) [this message]
2020-09-03 14:08 ` [PATCH 3/9] mm/readahead: Make page_cache_ra_unbounded take a readahead_control Matthew Wilcox (Oracle)
2020-09-03 19:22 ` Andrew Morton
2020-09-03 19:33 ` Matthew Wilcox
2020-09-03 14:08 ` [PATCH 4/9] mm/readahead: Make do_page_cache_ra " Matthew Wilcox (Oracle)
2020-09-03 14:08 ` [PATCH 5/9] mm/readahead: Make ondemand_readahead " Matthew Wilcox (Oracle)
2020-09-03 14:08 ` [PATCH 6/9] mm/readahead: Pass readahead_control to force_page_cache_ra Matthew Wilcox (Oracle)
2020-09-03 14:08 ` [PATCH 7/9] mm/readahead: Add page_cache_sync_ra and page_cache_async_ra Matthew Wilcox (Oracle)
2020-09-03 14:08 ` [PATCH 8/9] mm/filemap: Fold ra_submit into do_sync_mmap_readahead Matthew Wilcox (Oracle)
2020-09-03 14:08 ` [PATCH 9/9] mm/readahead: Pass a file_ra_state into force_page_cache_ra Matthew Wilcox (Oracle)
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