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mm: remove the skip_page argument to read_pages 

The skip_page argument to read_pages controls if rac->_index is
incremented before returning from the function.  Just open code that in
the callers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
This commit is contained in:
Christoph Hellwig 2022-03-31 05:35:55 -07:00 committed by Matthew Wilcox (Oracle)
parent dfd8b4fc76
commit b4e089d705
1 changed files with 8 additions and 10 deletions
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18
mm/readahead.c
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@ -142,14 +142,14 @@ file_ra_state_init(struct file_ra_state *ra, struct address_space *mapping)
}
EXPORT_SYMBOL_GPL(file_ra_state_init);
static void read_pages(struct readahead_control *rac, bool skip_page)
static void read_pages(struct readahead_control *rac)
{
const struct address_space_operations *aops = rac->mapping->a_ops;
struct page *page;
struct blk_plug plug;
if (!readahead_count(rac))
goto out;
return;
blk_start_plug(&plug);
@ -179,10 +179,6 @@ static void read_pages(struct readahead_control *rac, bool skip_page)
blk_finish_plug(&plug);
BUG_ON(readahead_count(rac));
out:
if (skip_page)
rac->_index++;
}
/**
@ -235,7 +231,8 @@ void page_cache_ra_unbounded(struct readahead_control *ractl,
* have a stable reference to this page, and it's
* not worth getting one just for that.
*/
read_pages(ractl, true);
read_pages(ractl);
ractl->_index++;
i = ractl->_index + ractl->_nr_pages - index - 1;
continue;
}
@ -246,7 +243,8 @@ void page_cache_ra_unbounded(struct readahead_control *ractl,
if (filemap_add_folio(mapping, folio, index + i,
gfp_mask) < 0) {
folio_put(folio);
read_pages(ractl, true);
read_pages(ractl);
ractl->_index++;
i = ractl->_index + ractl->_nr_pages - index - 1;
continue;
}
@ -260,7 +258,7 @@ void page_cache_ra_unbounded(struct readahead_control *ractl,
* uptodate then the caller will launch readpage again, and
* will then handle the error.
*/
read_pages(ractl, false);
read_pages(ractl);
filemap_invalidate_unlock_shared(mapping);
memalloc_nofs_restore(nofs);
}
@ -534,7 +532,7 @@ void page_cache_ra_order(struct readahead_control *ractl,
ra->async_size += index - limit - 1;
}
read_pages(ractl, false);
read_pages(ractl);
/*
* If there were already pages in the page cache, then we may have