mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-11 21:38:32 +08:00
a5adcfcad5
users to more easily find the jbd2 journal thread for a particular
ext4 file system.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAlx8utQACgkQ8vlZVpUN
gaOMOQf+Olp6hTbCuPJNill7npEejkPu9VhNvLPp3dLPBfsyqG9IOZmUaKKtr3LS
ZYYzMMoIlbHDsWM70O92zDS3s1ThKRFoDdcw4YKXkn1Awlqc4LRZ/NnzyIIdA3mK
rhOvcr6ttWk2B2S67nGceTH08SX5zACMtMiQijP58+GCp4Xe+PdqPRRjYYJSOZMv
xCS43LoWY0tkeBTQuk9WYTi6G/E1X/aiq06pYiQzP69PotN6/cFSdNgP1r+7dYiS
V4IXPqEqFt8NvUZb1bJchT3+2zM3Xi/+n//7yLkpY7OhX6p1p24oB7abMstp3ssU
BlF8KP4elQcI892QX2Hf+0r4tBu+0w==
=2yLu
-----END PGP SIGNATURE-----
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"A large number of bug fixes and cleanups.
One new feature to allow users to more easily find the jbd2 journal
thread for a particular ext4 file system"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (25 commits)
jbd2: jbd2_get_transaction does not need to return a value
jbd2: fix invalid descriptor block checksum
ext4: fix bigalloc cluster freeing when hole punching under load
ext4: add sysfs attr /sys/fs/ext4/<disk>/journal_task
ext4: Change debugging support help prefix from EXT4 to Ext4
ext4: fix compile error when using BUFFER_TRACE
jbd2: fix compile warning when using JBUFFER_TRACE
ext4: fix some error pointer dereferences
ext4: annotate more implicit fall throughs
ext4: annotate implicit fall throughs
ext4: don't update s_rev_level if not required
jbd2: fold jbd2_superblock_csum_{verify,set} into their callers
jbd2: fix race when writing superblock
ext4: fix crash during online resizing
ext4: disallow files with EXT4_JOURNAL_DATA_FL from EXT4_IOC_SWAP_BOOT
ext4: add mask of ext4 flags to swap
ext4: update quota information while swapping boot loader inode
ext4: cleanup pagecache before swap i_data
ext4: fix check of inode in swap_inode_boot_loader
ext4: unlock unused_pages timely when doing writeback
...
108 lines
3.5 KiB
Plaintext
108 lines
3.5 KiB
Plaintext
# Ext3 configs are here for backward compatibility with old configs which may
|
|
# have EXT3_FS set but not EXT4_FS set and thus would result in non-bootable
|
|
# kernels after the removal of ext3 driver.
|
|
config EXT3_FS
|
|
tristate "The Extended 3 (ext3) filesystem"
|
|
# These must match EXT4_FS selects...
|
|
select EXT4_FS
|
|
select JBD2
|
|
select CRC16
|
|
select CRYPTO
|
|
select CRYPTO_CRC32C
|
|
help
|
|
This config option is here only for backward compatibility. ext3
|
|
filesystem is now handled by the ext4 driver.
|
|
|
|
config EXT3_FS_POSIX_ACL
|
|
bool "Ext3 POSIX Access Control Lists"
|
|
depends on EXT3_FS
|
|
select EXT4_FS_POSIX_ACL
|
|
select FS_POSIX_ACL
|
|
help
|
|
This config option is here only for backward compatibility. ext3
|
|
filesystem is now handled by the ext4 driver.
|
|
|
|
config EXT3_FS_SECURITY
|
|
bool "Ext3 Security Labels"
|
|
depends on EXT3_FS
|
|
select EXT4_FS_SECURITY
|
|
help
|
|
This config option is here only for backward compatibility. ext3
|
|
filesystem is now handled by the ext4 driver.
|
|
|
|
config EXT4_FS
|
|
tristate "The Extended 4 (ext4) filesystem"
|
|
# Please update EXT3_FS selects when changing these
|
|
select JBD2
|
|
select CRC16
|
|
select CRYPTO
|
|
select CRYPTO_CRC32C
|
|
select FS_IOMAP
|
|
help
|
|
This is the next generation of the ext3 filesystem.
|
|
|
|
Unlike the change from ext2 filesystem to ext3 filesystem,
|
|
the on-disk format of ext4 is not forwards compatible with
|
|
ext3; it is based on extent maps and it supports 48-bit
|
|
physical block numbers. The ext4 filesystem also supports delayed
|
|
allocation, persistent preallocation, high resolution time stamps,
|
|
and a number of other features to improve performance and speed
|
|
up fsck time. For more information, please see the web pages at
|
|
http://ext4.wiki.kernel.org.
|
|
|
|
The ext4 filesystem supports mounting an ext3 filesystem; while there
|
|
are some performance gains from the delayed allocation and inode
|
|
table readahead, the best performance gains require enabling ext4
|
|
features in the filesystem using tune2fs, or formatting a new
|
|
filesystem as an ext4 filesystem initially. Without explicit enabling
|
|
of ext4 features, the on disk filesystem format stays fully backward
|
|
compatible.
|
|
|
|
To compile this file system support as a module, choose M here. The
|
|
module will be called ext4.
|
|
|
|
If unsure, say N.
|
|
|
|
config EXT4_USE_FOR_EXT2
|
|
bool "Use ext4 for ext2 file systems"
|
|
depends on EXT4_FS
|
|
depends on EXT2_FS=n
|
|
default y
|
|
help
|
|
Allow the ext4 file system driver code to be used for ext2
|
|
file system mounts. This allows users to reduce their
|
|
compiled kernel size by using one file system driver for
|
|
ext2, ext3, and ext4 file systems.
|
|
|
|
config EXT4_FS_POSIX_ACL
|
|
bool "Ext4 POSIX Access Control Lists"
|
|
depends on EXT4_FS
|
|
select FS_POSIX_ACL
|
|
help
|
|
POSIX Access Control Lists (ACLs) support permissions for users and
|
|
groups beyond the owner/group/world scheme.
|
|
|
|
If you don't know what Access Control Lists are, say N
|
|
|
|
config EXT4_FS_SECURITY
|
|
bool "Ext4 Security Labels"
|
|
depends on EXT4_FS
|
|
help
|
|
Security labels support alternative access control models
|
|
implemented by security modules like SELinux. This option
|
|
enables an extended attribute handler for file security
|
|
labels in the ext4 filesystem.
|
|
|
|
If you are not using a security module that requires using
|
|
extended attributes for file security labels, say N.
|
|
|
|
config EXT4_DEBUG
|
|
bool "Ext4 debugging support"
|
|
depends on EXT4_FS
|
|
help
|
|
Enables run-time debugging support for the ext4 filesystem.
|
|
|
|
If you select Y here, then you will be able to turn on debugging
|
|
with a command such as:
|
|
echo 1 > /sys/module/ext4/parameters/mballoc_debug
|