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authorChristoph Hellwig <hch@lst.de>2015-01-14 10:42:31 +0100
committerJens Axboe <axboe@fb.com>2015-01-20 14:02:56 -0700
commit97b713ba3ebaa6c8d84c2c720f5468a7c6a6eb4e (patch)
treea2a430b22f8c220e719114786905b18aa605f9ec /mm/swap_state.c
parenta7a2c680a2ad81b3181a335ee76e23d5195007ee (diff)
downloadlinux-97b713ba3ebaa6c8d84c2c720f5468a7c6a6eb4e.tar.gz
fs: kill BDI_CAP_SWAP_BACKED
This bdi flag isn't too useful - we can determine that a vma is backed by either swap or shmem trivially in the caller. This also allows removing the backing_dev_info instaces for swap and shmem in favor of noop_backing_dev_info. Signed-off-by: Christoph Hellwig <hch@lst.de> 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.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/mm/swap_state.c b/mm/swap_state.c
index 9711342987a0..1c137b69ecde 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -32,17 +32,12 @@ static const struct address_space_operations swap_aops = {
#endif
};
-static struct backing_dev_info swap_backing_dev_info = {
- .name = "swap",
- .capabilities = BDI_CAP_NO_ACCT_AND_WRITEBACK | BDI_CAP_SWAP_BACKED,
-};
-
struct address_space swapper_spaces[MAX_SWAPFILES] = {
[0 ... MAX_SWAPFILES - 1] = {
.page_tree = RADIX_TREE_INIT(GFP_ATOMIC|__GFP_NOWARN),
.i_mmap_writable = ATOMIC_INIT(0),
.a_ops = &swap_aops,
- .backing_dev_info = &swap_backing_dev_info,
+ .backing_dev_info = &noop_backing_dev_info,
}
};