From eeadd68e2a5f6bfe0bf1038ec49e3a8d99eb5fe8 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 5 May 2025 10:11:25 +0200 Subject: block: remove bounce buffering support The block layer bounce buffering support is unused now, remove it. Signed-off-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Reviewed-by: John Garry Reviewed-by: Johannes Thumshirn Link: https://lore.kernel.org/r/20250505081138.3435992-7-hch@lst.de Signed-off-by: Jens Axboe --- include/linux/blk_types.h | 1 - include/linux/blkdev.h | 5 +---- 2 files changed, 1 insertion(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index dce7615c35e7..5a46067e85b1 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -286,7 +286,6 @@ struct bio { enum { BIO_PAGE_PINNED, /* Unpin pages in bio_release_pages() */ BIO_CLONED, /* doesn't own data */ - BIO_BOUNCED, /* bio is a bounce bio */ BIO_QUIET, /* Make BIO Quiet */ BIO_CHAIN, /* chained bio, ->bi_remaining in effect */ BIO_REFFED, /* bio has elevated ->bi_cnt */ diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index f3d74f9dae8e..5ccb961ee2ae 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -331,9 +331,6 @@ typedef unsigned int __bitwise blk_features_t; /* skip this queue in blk_mq_(un)quiesce_tagset */ #define BLK_FEAT_SKIP_TAGSET_QUIESCE ((__force blk_features_t)(1u << 13)) -/* bounce all highmem pages */ -#define BLK_FEAT_BOUNCE_HIGH ((__force blk_features_t)(1u << 14)) - /* undocumented magic for bcache */ #define BLK_FEAT_RAID_PARTIAL_STRIPES_EXPENSIVE \ ((__force blk_features_t)(1u << 15)) @@ -347,7 +344,7 @@ typedef unsigned int __bitwise blk_features_t; */ #define BLK_FEAT_INHERIT_MASK \ (BLK_FEAT_WRITE_CACHE | BLK_FEAT_FUA | BLK_FEAT_ROTATIONAL | \ - BLK_FEAT_STABLE_WRITES | BLK_FEAT_ZONED | BLK_FEAT_BOUNCE_HIGH | \ + BLK_FEAT_STABLE_WRITES | BLK_FEAT_ZONED | \ BLK_FEAT_RAID_PARTIAL_STRIPES_EXPENSIVE) /* internal flags in queue_limits.flags */ -- cgit v1.2.3