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iomap: convert from readpages to readahead

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Use the new readahead operation in iomap.  Convert XFS and ZoneFS to use
it.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Cc: Chao Yu <yuchao0@huawei.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Dave Chinner <dchinner@redhat.com>
Cc: Eric Biggers <ebiggers@google.com>
Cc: Gao Xiang <gaoxiang25@huawei.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Cc: Miklos Szeredi <mszeredi@redhat.com>
Link: http://lkml.kernel.org/r/20200414150233.24495-26-willy@infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle)
2020-06-01 21:47:34 -07:00
committed by Linus Torvalds
parent 76a0294eb1
commit 9d24a13a93
5 changed files with 41 additions and 74 deletions
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7
fs/zonefs/super.c
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@@ -78,10 +78,9 @@ static int zonefs_readpage(struct file *unused, struct page *page)
return iomap_readpage(page, &zonefs_iomap_ops);
}
static int zonefs_readpages(struct file *unused, struct address_space *mapping,
struct list_head *pages, unsigned int nr_pages)
static void zonefs_readahead(struct readahead_control *rac)
{
return iomap_readpages(mapping, pages, nr_pages, &zonefs_iomap_ops);
iomap_readahead(rac, &zonefs_iomap_ops);
}
/*
@@ -128,7 +127,7 @@ static int zonefs_writepages(struct address_space *mapping,
static const struct address_space_operations zonefs_file_aops = {
.readpage = zonefs_readpage,
.readpages = zonefs_readpages,
.readahead = zonefs_readahead,
.writepage = zonefs_writepage,
.writepages = zonefs_writepages,
.set_page_dirty = iomap_set_page_dirty,