mirror of
https://github.com/torvalds/linux.git
synced 2024-10-31 01:01:52 +00:00
d5cf09bace
Trying to support tiny disks only and saving a bit memory might have made sense on an SGI O2 15 years ago, but is pretty pointless today. Remove the rarely tested codepath that uses various smaller in-memory types to reduce our test matrix and make the codebase a little bit smaller and less complicated. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Ben Myers <bpm@sgi.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
98 lines
3.8 KiB
Plaintext
98 lines
3.8 KiB
Plaintext
config XFS_FS
|
|
tristate "XFS filesystem support"
|
|
depends on BLOCK
|
|
depends on (64BIT || LBDAF)
|
|
select EXPORTFS
|
|
select LIBCRC32C
|
|
help
|
|
XFS is a high performance journaling filesystem which originated
|
|
on the SGI IRIX platform. It is completely multi-threaded, can
|
|
support large files and large filesystems, extended attributes,
|
|
variable block sizes, is extent based, and makes extensive use of
|
|
Btrees (directories, extents, free space) to aid both performance
|
|
and scalability.
|
|
|
|
Refer to the documentation at <http://oss.sgi.com/projects/xfs/>
|
|
for complete details. This implementation is on-disk compatible
|
|
with the IRIX version of XFS.
|
|
|
|
To compile this file system support as a module, choose M here: the
|
|
module will be called xfs. Be aware, however, that if the file
|
|
system of your root partition is compiled as a module, you'll need
|
|
to use an initial ramdisk (initrd) to boot.
|
|
|
|
config XFS_QUOTA
|
|
bool "XFS Quota support"
|
|
depends on XFS_FS
|
|
select QUOTACTL
|
|
help
|
|
If you say Y here, you will be able to set limits for disk usage on
|
|
a per user and/or a per group basis under XFS. XFS considers quota
|
|
information as filesystem metadata and uses journaling to provide a
|
|
higher level guarantee of consistency. The on-disk data format for
|
|
quota is also compatible with the IRIX version of XFS, allowing a
|
|
filesystem to be migrated between Linux and IRIX without any need
|
|
for conversion.
|
|
|
|
If unsure, say N. More comprehensive documentation can be found in
|
|
README.quota in the xfsprogs package. XFS quota can be used either
|
|
with or without the generic quota support enabled (CONFIG_QUOTA) -
|
|
they are completely independent subsystems.
|
|
|
|
config XFS_POSIX_ACL
|
|
bool "XFS POSIX ACL support"
|
|
depends on XFS_FS
|
|
select FS_POSIX_ACL
|
|
help
|
|
POSIX Access Control Lists (ACLs) support permissions for users and
|
|
groups beyond the owner/group/world scheme.
|
|
|
|
To learn more about Access Control Lists, visit the POSIX ACLs for
|
|
Linux website <http://acl.bestbits.at/>.
|
|
|
|
If you don't know what Access Control Lists are, say N.
|
|
|
|
config XFS_RT
|
|
bool "XFS Realtime subvolume support"
|
|
depends on XFS_FS
|
|
help
|
|
If you say Y here you will be able to mount and use XFS filesystems
|
|
which contain a realtime subvolume. The realtime subvolume is a
|
|
separate area of disk space where only file data is stored. It was
|
|
originally designed to provide deterministic data rates suitable
|
|
for media streaming applications, but is also useful as a generic
|
|
mechanism for ensuring data and metadata/log I/Os are completely
|
|
separated. Regular file I/Os are isolated to a separate device
|
|
from all other requests, and this can be done quite transparently
|
|
to applications via the inherit-realtime directory inode flag.
|
|
|
|
See the xfs man page in section 5 for additional information.
|
|
|
|
If unsure, say N.
|
|
|
|
config XFS_WARN
|
|
bool "XFS Verbose Warnings"
|
|
depends on XFS_FS && !XFS_DEBUG
|
|
help
|
|
Say Y here to get an XFS build with many additional warnings.
|
|
It converts ASSERT checks to WARN, so will log any out-of-bounds
|
|
conditions that occur that would otherwise be missed. It is much
|
|
lighter weight than XFS_DEBUG and does not modify algorithms and will
|
|
not cause the kernel to panic on non-fatal errors.
|
|
|
|
However, similar to XFS_DEBUG, it is only advisable to use this if you
|
|
are debugging a particular problem.
|
|
|
|
config XFS_DEBUG
|
|
bool "XFS Debugging support"
|
|
depends on XFS_FS
|
|
help
|
|
Say Y here to get an XFS build with many debugging features,
|
|
including ASSERT checks, function wrappers around macros,
|
|
and extra sanity-checking functions in various code paths.
|
|
|
|
Note that the resulting code will be HUGE and SLOW, and probably
|
|
not useful unless you are debugging a particular problem.
|
|
|
|
Say N unless you are an XFS developer, or you play one on TV.
|