diff options
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 | |
parent | 07642381d5ad800d021bb80842bfebb100b12fc2 (diff) | |
download | linux-6cd176a51e52e5218b1aa97e1ec916bac25a9b7e.tar.bz2 |
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')
-rw-r--r-- | fs/Kconfig | 21 | ||||
-rw-r--r-- | fs/Makefile | 2 | ||||
-rw-r--r-- | fs/ext2/Kconfig | 11 | ||||
-rw-r--r-- | fs/ext2/ext2.h | 2 | ||||
-rw-r--r-- | fs/ext2/file.c | 4 | ||||
-rw-r--r-- | fs/ext2/super.c | 4 |
6 files changed, 20 insertions, 24 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 diff --git a/fs/Makefile b/fs/Makefile index 0534444e257c..0f4635f7c49c 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -28,7 +28,7 @@ obj-$(CONFIG_SIGNALFD) += signalfd.o obj-$(CONFIG_TIMERFD) += timerfd.o obj-$(CONFIG_EVENTFD) += eventfd.o obj-$(CONFIG_AIO) += aio.o -obj-$(CONFIG_FS_XIP) += dax.o +obj-$(CONFIG_FS_DAX) += dax.o obj-$(CONFIG_FILE_LOCKING) += locks.o obj-$(CONFIG_COMPAT) += compat.o compat_ioctl.o obj-$(CONFIG_BINFMT_AOUT) += binfmt_aout.o diff --git a/fs/ext2/Kconfig b/fs/ext2/Kconfig index 14a6780fd034..c634874e12d9 100644 --- a/fs/ext2/Kconfig +++ b/fs/ext2/Kconfig @@ -42,14 +42,3 @@ config EXT2_FS_SECURITY If you are not using a security module that requires using extended attributes for file security labels, say N. - -config EXT2_FS_XIP - bool "Ext2 execute in place support" - depends on EXT2_FS && MMU - help - Execute in place can be used on memory-backed block devices. If you - enable this option, you can select to mount block devices which are - capable of this feature without using the page cache. - - If you do not use a block device that is capable of using this, - or if unsure, say N. diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h index 30604c4d70e6..6854038c09ae 100644 --- a/fs/ext2/ext2.h +++ b/fs/ext2/ext2.h @@ -380,7 +380,7 @@ struct ext2_inode { #define EXT2_MOUNT_NO_UID32 0x000200 /* Disable 32-bit UIDs */ #define EXT2_MOUNT_XATTR_USER 0x004000 /* Extended user attributes */ #define EXT2_MOUNT_POSIX_ACL 0x008000 /* POSIX Access Control Lists */ -#ifdef CONFIG_FS_XIP +#ifdef CONFIG_FS_DAX #define EXT2_MOUNT_XIP 0x010000 /* Execute in place */ #else #define EXT2_MOUNT_XIP 0 diff --git a/fs/ext2/file.c b/fs/ext2/file.c index a61c93fd9dce..de8174d1e973 100644 --- a/fs/ext2/file.c +++ b/fs/ext2/file.c @@ -25,7 +25,7 @@ #include "xattr.h" #include "acl.h" -#ifdef CONFIG_EXT2_FS_XIP +#ifdef CONFIG_FS_DAX static int ext2_dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { return dax_fault(vma, vmf, ext2_get_block); @@ -108,7 +108,7 @@ const struct file_operations ext2_file_operations = { .splice_write = iter_file_splice_write, }; -#ifdef CONFIG_EXT2_FS_XIP +#ifdef CONFIG_FS_DAX const struct file_operations ext2_xip_file_operations = { .llseek = generic_file_llseek, .read = new_sync_read, diff --git a/fs/ext2/super.c b/fs/ext2/super.c index 50342583db1f..5f029d8c3a02 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -291,7 +291,7 @@ static int ext2_show_options(struct seq_file *seq, struct dentry *root) seq_puts(seq, ",grpquota"); #endif -#if defined(CONFIG_EXT2_FS_XIP) +#ifdef CONFIG_FS_DAX if (sbi->s_mount_opt & EXT2_MOUNT_XIP) seq_puts(seq, ",xip"); #endif @@ -558,7 +558,7 @@ static int parse_options(char *options, struct super_block *sb) break; #endif case Opt_xip: -#ifdef CONFIG_EXT2_FS_XIP +#ifdef CONFIG_FS_DAX set_opt (sbi->s_mount_opt, XIP); #else ext2_msg(sb, KERN_INFO, "xip option not supported"); |