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| author | Matthew Wilcox <matthew.r.wilcox@intel.com> | 2015-02-16 15:59:25 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-16 17:56:04 -0800 |
| commit | 6cd176a51e52e5218b1aa97e1ec916bac25a9b7e (patch) | |
| tree | aa4154016ecea4e63ab0dda6e00ada1d718d31df /fs/Kconfig | |
| parent | 07642381d5ad800d021bb80842bfebb100b12fc2 (diff) | |
| download | linux-6cd176a51e52e5218b1aa97e1ec916bac25a9b7e.tar.gz linux-6cd176a51e52e5218b1aa97e1ec916bac25a9b7e.tar.bz2 linux-6cd176a51e52e5218b1aa97e1ec916bac25a9b7e.zip | |
vfs,ext2: remove CONFIG_EXT2_FS_XIP and rename CONFIG_FS_XIP to CONFIG_FS_DAX
The fewer Kconfig options we have the better. Use the generic
CONFIG_FS_DAX to enable XIP support in ext2 as well as in the core.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Andreas Dilger <andreas.dilger@intel.com>
Cc: Boaz Harrosh <boaz@plexistor.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/Kconfig')
| -rw-r--r-- | fs/Kconfig | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/fs/Kconfig b/fs/Kconfig index a6bb530b1ec5..5331497d5b25 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -13,13 +13,6 @@ if BLOCK source "fs/ext2/Kconfig" source "fs/ext3/Kconfig" source "fs/ext4/Kconfig" - -config FS_XIP -# execute in place - bool - depends on EXT2_FS_XIP - default y - source "fs/jbd/Kconfig" source "fs/jbd2/Kconfig" @@ -40,6 +33,20 @@ source "fs/ocfs2/Kconfig" source "fs/btrfs/Kconfig" source "fs/nilfs2/Kconfig" +config FS_DAX + bool "Direct Access (DAX) support" + depends on MMU + help + Direct Access (DAX) can be used on memory-backed block devices. + If the block device supports DAX and the filesystem supports DAX, + then you can avoid using the pagecache to buffer I/Os. Turning + on this option will compile in support for DAX; you will need to + mount the filesystem using the -o dax option. + + If you do not have a block device that is capable of using this, + or if unsure, say N. Saying Y will increase the size of the kernel + by about 5kB. + endif # BLOCK # Posix ACL utility routines |