diff options
Diffstat (limited to 'fs/Kconfig')
| -rw-r--r-- | fs/Kconfig | 115 |
1 files changed, 90 insertions, 25 deletions
diff --git a/fs/Kconfig b/fs/Kconfig index 708ba336e689..2685a4d0d353 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -15,11 +15,11 @@ config VALIDATE_FS_PARSER Enable this to perform validation of the parameter description for a filesystem when it is registered. -if BLOCK - config FS_IOMAP bool +if BLOCK + source "fs/ext2/Kconfig" source "fs/ext4/Kconfig" source "fs/jbd2/Kconfig" @@ -42,19 +42,36 @@ source "fs/nilfs2/Kconfig" source "fs/f2fs/Kconfig" source "fs/zonefs/Kconfig" +endif # BLOCK + 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) + depends on ZONE_DEVICE || FS_DAX_LIMITED select FS_IOMAP select DAX 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. + 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 @@ -74,8 +91,6 @@ config FS_DAX_PMD config FS_DAX_LIMITED bool -endif # BLOCK - # Posix ACL utility routines # # Note: Posix ACLs can be implemented without these helpers. Never use @@ -101,16 +116,6 @@ config FILE_LOCKING for filesystems like NFS and for the flock() system call. Disabling this option saves about 11k. -config MANDATORY_FILE_LOCKING - bool "Enable Mandatory file locking" - depends on FILE_LOCKING - default y - help - This option enables files appropriately marked files on appropriely - mounted filesystems to support mandatory locking. - - To the best of my knowledge this is dead code that no one cares about. - source "fs/crypto/Kconfig" source "fs/verity/Kconfig" @@ -125,6 +130,7 @@ source "fs/overlayfs/Kconfig" menu "Caches" +source "fs/netfs/Kconfig" source "fs/fscache/Kconfig" source "fs/cachefiles/Kconfig" @@ -140,10 +146,12 @@ endmenu endif # BLOCK if BLOCK -menu "DOS/FAT/NT Filesystems" +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 @@ -165,7 +173,7 @@ config TMPFS space. If you unmount a tmpfs instance, everything stored therein is lost. - See <file:Documentation/filesystems/tmpfs.txt> for details. + See <file:Documentation/filesystems/tmpfs.rst> for details. config TMPFS_POSIX_ACL bool "Tmpfs POSIX Access Control Lists" @@ -200,10 +208,34 @@ config TMPFS_XATTR If unsure, say N. +config TMPFS_INODE64 + bool "Use 64-bit ino_t by default in tmpfs" + depends on TMPFS && 64BIT + default n + help + tmpfs has historically used only inode numbers as wide as an unsigned + int. In some cases this can cause wraparound, potentially resulting + in multiple files with the same inode number on a single device. This + option makes tmpfs use the full width of ino_t by default, without + needing to specify the inode64 option when mounting. + + But if a long-lived tmpfs is to be accessed by 32-bit applications so + ancient that opening a file larger than 2GiB fails with EINVAL, then + the INODE64 config option and inode64 mount option risk operations + failing with EOVERFLOW once 33-bit inode numbers are reached. + + To override this configured default, use the inode32 or inode64 + option when mounting. + + If unsure, say N. + +config ARCH_SUPPORTS_HUGETLBFS + def_bool n + config HUGETLBFS bool "HugeTLB file system support" - depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \ - SYS_SUPPORTS_HUGETLBFS || BROKEN + depends on X86 || IA64 || SPARC64 || ARCH_SUPPORTS_HUGETLBFS || BROKEN + depends on (SYSFS || SYSCTL) help hugetlbfs is a filesystem backing for HugeTLB pages, based on ramfs. For architectures that support it, say Y here and read @@ -214,6 +246,27 @@ config HUGETLBFS config HUGETLB_PAGE def_bool HUGETLBFS +# +# Select this config option from the architecture Kconfig, if it is preferred +# to enable the feature of HugeTLB Vmemmap Optimization (HVO). +# +config ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP + bool + +config HUGETLB_PAGE_OPTIMIZE_VMEMMAP + def_bool HUGETLB_PAGE + depends on ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP + depends on SPARSEMEM_VMEMMAP + +config HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON + bool "HugeTLB Vmemmap Optimization (HVO) defaults to on" + default n + depends on HUGETLB_PAGE_OPTIMIZE_VMEMMAP + help + The HugeTLB VmemmapvOptimization (HVO) defaults to off. Say Y here to + enable HVO by default. It can be disabled via hugetlb_free_vmemmap=off + (boot command line) or hugetlb_optimize_vmemmap (sysctl). + config MEMFD_CREATE def_bool TMPFS || HUGETLBFS @@ -228,7 +281,7 @@ endmenu menuconfig MISC_FILESYSTEMS bool "Miscellaneous filesystems" default y - ---help--- + help Say Y here to get to see options for various miscellaneous filesystems, such as filesystems that came from other operating systems. @@ -273,7 +326,7 @@ menuconfig NETWORK_FILESYSTEMS bool "Network File Systems" default y depends on NET - ---help--- + help Say Y here to get to see options for network filesystems and filesystem-related networking code, such as NFS daemon and RPCSEC security modules. @@ -298,7 +351,7 @@ config LOCKD config LOCKD_V4 bool - depends on NFSD_V3 || NFS_V3 + depends on NFSD || NFS_V3 depends on FILE_LOCKING default y @@ -311,9 +364,21 @@ config NFS_COMMON depends on NFSD || NFS_FS || LOCKD default y +config NFS_V4_2_SSC_HELPER + bool + default y if NFS_V4_2 + source "net/sunrpc/Kconfig" source "fs/ceph/Kconfig" + source "fs/cifs/Kconfig" +source "fs/ksmbd/Kconfig" + +config SMBFS_COMMON + tristate + default y if CIFS=y || SMB_SERVER=y + default m if CIFS=m || SMB_SERVER=m + source "fs/coda/Kconfig" source "fs/afs/Kconfig" source "fs/9p/Kconfig" |