diff options
Diffstat (limited to 'fs/Kconfig')
| -rw-r--r-- | fs/Kconfig | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/fs/Kconfig b/fs/Kconfig index f5751ad1f55e..47af46a573ba 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -43,7 +43,7 @@ source "fs/f2fs/Kconfig" source "fs/zonefs/Kconfig" config FS_DAX - bool "Direct Access (DAX) support" + bool "File system based Direct Access (DAX) support" depends on MMU depends on !(ARM || MIPS || SPARC) select DEV_PAGEMAP_OPS if (ZONE_DEVICE && !FS_DAX_LIMITED) @@ -53,8 +53,23 @@ config FS_DAX 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. + on this option will compile in support for DAX. + + For a DAX device to support file system access it needs to have + struct pages. For the nfit based NVDIMMs this can be enabled + using the ndctl utility: + + # ndctl create-namespace --force --reconfig=namespace0.0 \ + --mode=fsdax --map=mem + + See the 'create-namespace' man page for details on the overhead of + --map=mem: + https://docs.pmem.io/ndctl-user-guide/ndctl-man-pages/ndctl-create-namespace + + For ndctl to work CONFIG_DEV_DAX needs to be enabled as well. For most + file systems DAX support needs to be manually enabled globally or + per-inode using a mount option as well. See the file documentation in + Documentation/filesystems/dax.rst for details. 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 @@ -136,6 +151,7 @@ menu "DOS/FAT/EXFAT/NT Filesystems" source "fs/fat/Kconfig" source "fs/exfat/Kconfig" source "fs/ntfs/Kconfig" +source "fs/ntfs3/Kconfig" endmenu endif # BLOCK @@ -347,7 +363,15 @@ config NFS_V4_2_SSC_HELPER source "net/sunrpc/Kconfig" source "fs/ceph/Kconfig" + source "fs/cifs/Kconfig" +source "fs/ksmbd/Kconfig" + +config CIFS_COMMON + tristate + default y if CIFS=y + default m if CIFS=m + source "fs/coda/Kconfig" source "fs/afs/Kconfig" source "fs/9p/Kconfig" |