mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-15 16:53:54 +08:00
81354de3d8
All UBIFS needs is to make sure we stacktraces when UBIFS debugging is enabled. It is enough to select KALLSYMS for this, KALLSYMS_ALL is not necessary. Moreover, Randy Dunlap reported that UBIFS causes the following Kconfig dependency warning: warning: (UBIFS_FS_DEBUG && LOCKDEP && LATENCYTOP) selects KALLSYMS_ALL which has unmet direct dependencies (DEBUG_KERNEL && KALLSYMS) The reason is that KALLSYMS_ALL requires DEBUG_KERNEL and KALLSYMS, so ideally, to select KALLSYMS_ALL we'd need to select DEBUG_KERNEL and KALLSYMS first. This seems to be too much to select. The easiest way to go is to forget about KALLSYMS_ALL and just select KALLSYMS when UBIFS debugging is enabled - that should be enough for stackdumps. Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
61 lines
1.9 KiB
Plaintext
61 lines
1.9 KiB
Plaintext
config UBIFS_FS
|
|
tristate "UBIFS file system support"
|
|
select CRC16
|
|
select CRC32
|
|
select CRYPTO if UBIFS_FS_ADVANCED_COMPR
|
|
select CRYPTO if UBIFS_FS_LZO
|
|
select CRYPTO if UBIFS_FS_ZLIB
|
|
select CRYPTO_LZO if UBIFS_FS_LZO
|
|
select CRYPTO_DEFLATE if UBIFS_FS_ZLIB
|
|
depends on MTD_UBI
|
|
help
|
|
UBIFS is a file system for flash devices which works on top of UBI.
|
|
|
|
config UBIFS_FS_XATTR
|
|
bool "Extended attributes support"
|
|
depends on UBIFS_FS
|
|
help
|
|
This option enables support of extended attributes.
|
|
|
|
config UBIFS_FS_ADVANCED_COMPR
|
|
bool "Advanced compression options"
|
|
depends on UBIFS_FS
|
|
help
|
|
This option allows to explicitly choose which compressions, if any,
|
|
are enabled in UBIFS. Removing compressors means inability to read
|
|
existing file systems.
|
|
|
|
If unsure, say 'N'.
|
|
|
|
config UBIFS_FS_LZO
|
|
bool "LZO compression support" if UBIFS_FS_ADVANCED_COMPR
|
|
depends on UBIFS_FS
|
|
default y
|
|
help
|
|
LZO compressor is generally faster than zlib but compresses worse.
|
|
Say 'Y' if unsure.
|
|
|
|
config UBIFS_FS_ZLIB
|
|
bool "ZLIB compression support" if UBIFS_FS_ADVANCED_COMPR
|
|
depends on UBIFS_FS
|
|
default y
|
|
help
|
|
Zlib compresses better than LZO but it is slower. Say 'Y' if unsure.
|
|
|
|
# Debugging-related stuff
|
|
config UBIFS_FS_DEBUG
|
|
bool "Enable debugging support"
|
|
depends on UBIFS_FS
|
|
select DEBUG_FS
|
|
select KALLSYMS
|
|
help
|
|
This option enables UBIFS debugging support. It makes sure various
|
|
assertions, self-checks, debugging messages and test modes are compiled
|
|
in (this all is compiled out otherwise). Assertions are light-weight
|
|
and this option also enables them. Self-checks, debugging messages and
|
|
test modes are switched off by default. Thus, it is safe and actually
|
|
recommended to have debugging support enabled, and it should not slow
|
|
down UBIFS. You can then further enable / disable individual debugging
|
|
features using UBIFS module parameters and the corresponding sysfs
|
|
interfaces.
|