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authorChristoph Hellwig <hch@lst.de>2020-11-23 15:38:40 +0300
committerJens Axboe <axboe@kernel.dk>2020-12-02 00:53:39 +0300
commit4e7b5671c6a883d94b5428e1a9c141bbd56cb2a6 (patch)
tree862980514dedf92e87aa3ec651f5be306f207390 /fs/pipe.c
parent7918f0f6fdafa1e52c2d77c537cb55ef25fb69a3 (diff)
downloadlinux-4e7b5671c6a883d94b5428e1a9c141bbd56cb2a6.tar.xz
block: remove i_bdev
Switch the block device lookup interfaces to directly work with a dev_t so that struct block_device references are only acquired by the blkdev_get variants (and the blk-cgroup special case). This means that we now don't need an extra reference in the inode and can generally simplify handling of struct block_device to keep the lookups contained in the core block layer code. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Hannes Reinecke <hare@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: Coly Li <colyli@suse.de> [bcache] Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/pipe.c')
-rw-r--r--fs/pipe.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/fs/pipe.c b/fs/pipe.c
index 0ac197658a2d..c5989cfd564d 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -1342,9 +1342,8 @@ out_revert_acct:
}
/*
- * After the inode slimming patch, i_pipe/i_bdev/i_cdev share the same
- * location, so checking ->i_pipe is not enough to verify that this is a
- * pipe.
+ * Note that i_pipe and i_cdev share the same location, so checking ->i_pipe is
+ * not enough to verify that this is a pipe.
*/
struct pipe_inode_info *get_pipe_info(struct file *file, bool for_splice)
{