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| author | Christoph Hellwig <hch@lst.de> | 2015-01-14 10:42:37 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-01-20 14:03:05 -0700 |
| commit | b83ae6d421435c6204150300f1c25bfbd39cd62b (patch) | |
| tree | 99c6b661ab7de05c2fd49aa62624d2d6bf8abc69 /mm/swap_state.c | |
| parent | de1414a654e66b81b5348dbc5259ecf2fb61655e (diff) | |
| download | lwn-b83ae6d421435c6204150300f1c25bfbd39cd62b.tar.gz lwn-b83ae6d421435c6204150300f1c25bfbd39cd62b.zip | |
fs: remove mapping->backing_dev_info
Now that we never use the backing_dev_info pointer in struct address_space
we can simply remove it and save 4 to 8 bytes in every inode.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Reviewed-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'mm/swap_state.c')
| -rw-r--r-- | mm/swap_state.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/mm/swap_state.c b/mm/swap_state.c index 1c137b69ecde..405923f77334 100644 --- a/mm/swap_state.c +++ b/mm/swap_state.c @@ -37,7 +37,6 @@ struct address_space swapper_spaces[MAX_SWAPFILES] = { .page_tree = RADIX_TREE_INIT(GFP_ATOMIC|__GFP_NOWARN), .i_mmap_writable = ATOMIC_INIT(0), .a_ops = &swap_aops, - .backing_dev_info = &noop_backing_dev_info, } }; |