diff options
| author | Ross Zwisler <ross.zwisler@linux.intel.com> | 2016-08-03 13:46:15 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-04 08:50:07 -0400 |
| commit | 99a01cdf9d572e91c2805a2b89d459797864e3ca (patch) | |
| tree | a1951f7227a1dccae32544784e6e2bdf91895cf9 /block | |
| parent | 57c24b2140437644f33eecdcc9c546bead0b5fbd (diff) | |
| download | lwn-99a01cdf9d572e91c2805a2b89d459797864e3ca.tar.gz lwn-99a01cdf9d572e91c2805a2b89d459797864e3ca.zip | |
block: remove BLK_DEV_DAX config option
The functionality for block device DAX was already removed with commit
acc93d30d7d4 ("Revert "block: enable dax for raw block devices"")
However, we still had a config option hanging around that was always
disabled because it depended on CONFIG_BROKEN. This config option was
introduced in commit 03cdadb04077 ("block: disable block device DAX by
default")
This change reverts that commit, removing the dead config option.
Link: http://lkml.kernel.org/r/20160729182314.6368-1-ross.zwisler@linux.intel.com
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'block')
| -rw-r--r-- | block/Kconfig | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/block/Kconfig b/block/Kconfig index 0363cd731320..161491d0a879 100644 --- a/block/Kconfig +++ b/block/Kconfig @@ -88,19 +88,6 @@ config BLK_DEV_INTEGRITY T10/SCSI Data Integrity Field or the T13/ATA External Path Protection. If in doubt, say N. -config BLK_DEV_DAX - bool "Block device DAX support" - depends on FS_DAX - depends on BROKEN - help - When DAX support is available (CONFIG_FS_DAX) raw block - devices can also support direct userspace access to the - storage capacity via MMAP(2) similar to a file on a - DAX-enabled filesystem. However, the DAX I/O-path disables - some standard I/O-statistics, and the MMAP(2) path has some - operational differences due to bypassing the page - cache. If in doubt, say N. - config BLK_DEV_THROTTLING bool "Block layer bio throttling support" depends on BLK_CGROUP=y |