From: "Matthew Wilcox (Oracle)" <[email protected]> Change the type of page_idx to unsigned long, and rename it -- it's just a loop counter, not a page index.
Suggested-by: John Hubbard <[email protected]> Signed-off-by: Matthew Wilcox (Oracle) <[email protected]> --- mm/readahead.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/mm/readahead.c b/mm/readahead.c index 74791b96013f..bdc5759000d3 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -156,7 +156,7 @@ void __do_page_cache_readahead(struct address_space *mapping, struct inode *inode = mapping->host; unsigned long end_index; /* The last page we want to read */ LIST_HEAD(page_pool); - int page_idx; + unsigned long i; loff_t isize = i_size_read(inode); gfp_t gfp_mask = readahead_gfp_mask(mapping); struct readahead_control rac = { @@ -174,7 +174,7 @@ void __do_page_cache_readahead(struct address_space *mapping, /* * Preallocate as many pages as we will need. */ - for (page_idx = 0; page_idx < nr_to_read; page_idx++) { + for (i = 0; i < nr_to_read; i++) { struct page *page; if (offset > end_index) @@ -198,7 +198,7 @@ void __do_page_cache_readahead(struct address_space *mapping, break; page->index = offset; list_add(&page->lru, &page_pool); - if (page_idx == nr_to_read - lookahead_size) + if (i == nr_to_read - lookahead_size) SetPageReadahead(page); rac._nr_pages++; offset++; -- 2.25.0
