diff options
Diffstat (limited to 'fs/Kconfig')
| -rw-r--r-- | fs/Kconfig | 198 |
1 files changed, 153 insertions, 45 deletions
diff --git a/fs/Kconfig b/fs/Kconfig index ac474a61be37..0bfdaecaa877 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # File system configuration # @@ -8,11 +9,29 @@ menu "File systems" config DCACHE_WORD_ACCESS bool -if BLOCK +config VALIDATE_FS_PARSER + bool "Validate filesystem parameter description" + help + Enable this to perform validation of the parameter description for a + filesystem when it is registered. config FS_IOMAP bool +# Stackable filesystems +config FS_STACK + bool + +config BUFFER_HEAD + bool + +# old blockdev_direct_IO implementation. Use iomap for new code instead +config LEGACY_DIRECT_IO + depends on BUFFER_HEAD + bool + +if BLOCK + source "fs/ext2/Kconfig" source "fs/ext4/Kconfig" source "fs/jbd2/Kconfig" @@ -24,7 +43,6 @@ config FS_MBCACHE default y if EXT4_FS=y default m if EXT2_FS_XATTR || EXT4_FS -source "fs/reiserfs/Kconfig" source "fs/jfs/Kconfig" source "fs/xfs/Kconfig" @@ -33,20 +51,37 @@ source "fs/ocfs2/Kconfig" source "fs/btrfs/Kconfig" 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 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 @@ -59,15 +94,6 @@ config FS_DAX_PMD depends on ZONE_DEVICE depends on TRANSPARENT_HUGEPAGE -# Selected by DAX drivers that do not expect filesystem DAX to support -# get_user_pages() of DAX mappings. I.e. "limited" indicates no support -# for fork() of processes with MAP_SHARED mappings or support for -# direct-I/O to a DAX mapping. -config FS_DAX_LIMITED - bool - -endif # BLOCK - # Posix ACL utility routines # # Note: Posix ACLs can be implemented without these helpers. Never use @@ -93,18 +119,10 @@ 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" + source "fs/notify/Kconfig" source "fs/quota/Kconfig" @@ -115,7 +133,7 @@ source "fs/overlayfs/Kconfig" menu "Caches" -source "fs/fscache/Kconfig" +source "fs/netfs/Kconfig" source "fs/cachefiles/Kconfig" endmenu @@ -130,10 +148,11 @@ endmenu endif # BLOCK if BLOCK -menu "DOS/FAT/NT Filesystems" +menu "DOS/FAT/EXFAT/NT Filesystems" source "fs/fat/Kconfig" -source "fs/ntfs/Kconfig" +source "fs/exfat/Kconfig" +source "fs/ntfs3/Kconfig" endmenu endif # BLOCK @@ -147,6 +166,7 @@ source "fs/sysfs/Kconfig" config TMPFS bool "Tmpfs virtual memory file system support (former shm fs)" depends on SHMEM + select MEMFD_CREATE help Tmpfs is a file system which keeps all files in virtual memory. @@ -155,7 +175,7 @@ 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" @@ -183,17 +203,54 @@ config TMPFS_XATTR Extended attributes are name:value pairs associated with inodes by the kernel or by users (see the attr(5) manual page for details). - Currently this enables support for the trusted.* and - security.* namespaces. + This enables support for the trusted.*, security.* and user.* + namespaces. You need this for POSIX ACL support on tmpfs. If unsure, say N. -config HUGETLBFS +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 TMPFS_QUOTA + bool "Tmpfs quota support" + depends on TMPFS + select QUOTA + help + Quota support allows to set per user and group limits for tmpfs + usage. Say Y to enable quota support. Once enabled you can control + user and group quota enforcement with quota, usrquota and grpquota + mount options. + + If unsure, say N. + +config ARCH_SUPPORTS_HUGETLBFS + def_bool n + +menuconfig HUGETLBFS bool "HugeTLB file system support" - depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \ - SYS_SUPPORTS_HUGETLBFS || BROKEN + depends on ARCH_SUPPORTS_HUGETLBFS + select MEMFD_CREATE + select PADATA if SMP help hugetlbfs is a filesystem backing for HugeTLB pages, based on ramfs. For architectures that support it, say Y here and read @@ -201,11 +258,30 @@ config HUGETLBFS If unsure, say N. +if HUGETLBFS +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 Vmemmap Optimization (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). +endif # HUGETLBFS + config HUGETLB_PAGE def_bool HUGETLBFS + select XARRAY_MULTI + +config HUGETLB_PAGE_OPTIMIZE_VMEMMAP + def_bool HUGETLB_PAGE + depends on ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP + depends on SPARSEMEM_VMEMMAP + select SPARSEMEM_VMEMMAP_PREINIT if ARCH_WANT_HUGETLB_VMEMMAP_PREINIT -config MEMFD_CREATE - def_bool TMPFS || HUGETLBFS +config HUGETLB_PMD_PAGE_TABLE_SHARING + def_bool HUGETLB_PAGE + depends on ARCH_WANT_HUGE_PMD_SHARE && SPLIT_PMD_PTLOCKS config ARCH_HAS_GIGANTIC_PAGE bool @@ -218,7 +294,7 @@ 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. @@ -250,21 +326,20 @@ source "fs/omfs/Kconfig" source "fs/hpfs/Kconfig" source "fs/qnx4/Kconfig" source "fs/qnx6/Kconfig" +source "fs/resctrl/Kconfig" source "fs/romfs/Kconfig" source "fs/pstore/Kconfig" -source "fs/sysv/Kconfig" source "fs/ufs/Kconfig" -source "fs/exofs/Kconfig" +source "fs/erofs/Kconfig" +source "fs/vboxsf/Kconfig" endif # MISC_FILESYSTEMS -source "fs/exofs/Kconfig.ore" - 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. @@ -285,11 +360,12 @@ config GRACE_PERIOD config LOCKD tristate depends on FILE_LOCKING + select CRC32 select GRACE_PERIOD config LOCKD_V4 bool - depends on NFSD_V3 || NFS_V3 + depends on NFSD || NFS_V3 depends on FILE_LOCKING default y @@ -302,9 +378,37 @@ config NFS_COMMON depends on NFSD || NFS_FS || LOCKD default y +config NFS_COMMON_LOCALIO_SUPPORT + tristate + depends on NFS_LOCALIO + default y if NFSD=y || NFS_FS=y + default m if NFSD=m && NFS_FS=m + select SUNRPC + +config NFS_LOCALIO + bool "NFS client and server support for LOCALIO auxiliary protocol" + depends on NFSD && NFS_FS + select NFS_COMMON_LOCALIO_SUPPORT + default n + help + Some NFS servers support an auxiliary NFS LOCALIO protocol + that is not an official part of the NFS protocol. + + This option enables support for the LOCALIO protocol in the + kernel's NFS server and client. Enable this to permit local + NFS clients to bypass the network when issuing reads and + writes to the local NFS server. + + If unsure, say N. + +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/smb/Kconfig" source "fs/coda/Kconfig" source "fs/afs/Kconfig" source "fs/9p/Kconfig" @@ -313,5 +417,9 @@ endif # NETWORK_FILESYSTEMS source "fs/nls/Kconfig" source "fs/dlm/Kconfig" +source "fs/unicode/Kconfig" + +config IO_WQ + bool endmenu |