[PATCH 5/5] brd: Kill usage of page->index
From: Kent Overstreet <hidden>
Date: 2021-10-13 16:01:12
Also in:
linux-block, linux-mm, lkml
Subsystem:
block layer, ramdisk ram block device driver, the rest · Maintainers:
Jens Axboe, Linus Torvalds
As part of the struct page cleanups underway, we want to remove as much usage of page->mapping and page->index as possible, as frequently they are known from context. In the brd code, we're never actually reading from page->index except in assertions, so references to it can be safely deleted. Signed-off-by: Kent Overstreet <redacted> --- drivers/block/brd.c | 4 ---- 1 file changed, 4 deletions(-)
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 58ec167aa0..0a55aed832 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c@@ -72,8 +72,6 @@ static struct page *brd_lookup_page(struct brd_device *brd, sector_t sector) page = radix_tree_lookup(&brd->brd_pages, idx); rcu_read_unlock(); - BUG_ON(page && page->index != idx); - return page; }
@@ -108,12 +106,10 @@ static struct page *brd_insert_page(struct brd_device *brd, sector_t sector) spin_lock(&brd->brd_lock); idx = sector >> PAGE_SECTORS_SHIFT; - page->index = idx; if (radix_tree_insert(&brd->brd_pages, idx, page)) { __free_page(page); page = radix_tree_lookup(&brd->brd_pages, idx); BUG_ON(!page); - BUG_ON(page->index != idx); } else { brd->brd_nr_pages++; }
--
2.33.0