mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
404e0b6331
This came up during the v4.10 merge window:
warning: (UBIFS_FS_ENCRYPTION) selects FS_ENCRYPTION which has unmet direct dependencies (BLOCK)
fs/crypto/crypto.c: In function 'fscrypt_zeroout_range':
fs/crypto/crypto.c:355:9: error: implicit declaration of function 'bio_alloc';did you mean 'd_alloc'? [-Werror=implicit-function-declaration]
bio = bio_alloc(GFP_NOWAIT, 1);
The easiest way out is to limit UBIFS_FS_ENCRYPTION to configurations
that also enable BLOCK.
Fixes: d475a50745 ("ubifs: Add skeleton for fscrypto")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
63 lines
2 KiB
Text
63 lines
2 KiB
Text
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_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.
|
|
|
|
config UBIFS_ATIME_SUPPORT
|
|
bool "Access time support" if UBIFS_FS
|
|
depends on UBIFS_FS
|
|
default n
|
|
help
|
|
Originally UBIFS did not support atime, because it looked like a bad idea due
|
|
increased flash wear. This option adds atime support and it is disabled by default
|
|
to preserve the old behavior. If you enable this option, UBIFS starts updating atime,
|
|
which means that file-system read operations will cause writes (inode atime
|
|
updates). This may affect file-system performance and increase flash device wear,
|
|
so be careful. How often atime is updated depends on the selected strategy:
|
|
strictatime is the "heavy", relatime is "lighter", etc.
|
|
|
|
If unsure, say 'N'
|
|
|
|
config UBIFS_FS_ENCRYPTION
|
|
bool "UBIFS Encryption"
|
|
depends on UBIFS_FS && BLOCK
|
|
select FS_ENCRYPTION
|
|
default n
|
|
help
|
|
Enable encryption of UBIFS files and directories. This
|
|
feature is similar to ecryptfs, but it is more memory
|
|
efficient since it avoids caching the encrypted and
|
|
decrypted pages in the page cache.
|