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authorChristoph Hellwig <hch@lst.de>2015-01-14 12:42:31 +0300
committerJens Axboe <axboe@fb.com>2015-01-21 00:02:56 +0300
commit97b713ba3ebaa6c8d84c2c720f5468a7c6a6eb4e (patch)
treea2a430b22f8c220e719114786905b18aa605f9ec /include/linux/backing-dev.h
parenta7a2c680a2ad81b3181a335ee76e23d5195007ee (diff)
downloadlinux-97b713ba3ebaa6c8d84c2c720f5468a7c6a6eb4e.tar.xz
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 'include/linux/backing-dev.h')
-rw-r--r--include/linux/backing-dev.h13
1 files changed, 0 insertions, 13 deletions
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 5da6012b7a14..e936cea856dc 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -238,8 +238,6 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio);
* BDI_CAP_WRITE_MAP: Can be mapped for writing
* BDI_CAP_EXEC_MAP: Can be mapped for execution
*
- * BDI_CAP_SWAP_BACKED: Count shmem/tmpfs objects as swap-backed.
- *
* BDI_CAP_STRICTLIMIT: Keep number of dirty pages below bdi threshold.
*/
#define BDI_CAP_NO_ACCT_DIRTY 0x00000001
@@ -250,7 +248,6 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio);
#define BDI_CAP_WRITE_MAP 0x00000020
#define BDI_CAP_EXEC_MAP 0x00000040
#define BDI_CAP_NO_ACCT_WB 0x00000080
-#define BDI_CAP_SWAP_BACKED 0x00000100
#define BDI_CAP_STABLE_WRITES 0x00000200
#define BDI_CAP_STRICTLIMIT 0x00000400
@@ -329,11 +326,6 @@ static inline bool bdi_cap_account_writeback(struct backing_dev_info *bdi)
BDI_CAP_NO_WRITEBACK));
}
-static inline bool bdi_cap_swap_backed(struct backing_dev_info *bdi)
-{
- return bdi->capabilities & BDI_CAP_SWAP_BACKED;
-}
-
static inline bool mapping_cap_writeback_dirty(struct address_space *mapping)
{
return bdi_cap_writeback_dirty(mapping->backing_dev_info);
@@ -344,11 +336,6 @@ static inline bool mapping_cap_account_dirty(struct address_space *mapping)
return bdi_cap_account_dirty(mapping->backing_dev_info);
}
-static inline bool mapping_cap_swap_backed(struct address_space *mapping)
-{
- return bdi_cap_swap_backed(mapping->backing_dev_info);
-}
-
static inline int bdi_sched_wait(void *word)
{
schedule();