config [31mCONFIG_UBIFS_FS[0m tristate "UBIFS file system support" select [31mCONFIG_CRC16[0m select [31mCONFIG_CRC32[0m select [31mCONFIG_CRYPTO[0m if [31mCONFIG_UBIFS_FS_ADVANCED_COMPR[0m select [31mCONFIG_CRYPTO[0m if [31mCONFIG_UBIFS_FS_LZO[0m select [31mCONFIG_CRYPTO[0m if [31mCONFIG_UBIFS_FS_ZLIB[0m select [31mCONFIG_CRYPTO_LZO[0m if [31mCONFIG_UBIFS_FS_LZO[0m select [31mCONFIG_CRYPTO_DEFLATE[0m if [31mCONFIG_UBIFS_FS_ZLIB[0m depends on [31mCONFIG_MTD_UBI[0m help UBIFS is a file system for flash devices which works on top of UBI. config [31mCONFIG_UBIFS_FS_ADVANCED_COMPR[0m bool "Advanced compression options" depends on [31mCONFIG_UBIFS_FS[0m 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 [31mCONFIG_UBIFS_FS_LZO[0m bool "LZO compression support" if [31mCONFIG_UBIFS_FS_ADVANCED_COMPR[0m depends on [31mCONFIG_UBIFS_FS[0m default y help LZO compressor is generally faster than zlib but compresses worse. Say 'Y' if unsure. config [31mCONFIG_UBIFS_FS_ZLIB[0m bool "ZLIB compression support" if [31mCONFIG_UBIFS_FS_ADVANCED_COMPR[0m depends on [31mCONFIG_UBIFS_FS[0m default y help Zlib compresses better than LZO but it is slower. Say 'Y' if unsure. config [31mCONFIG_UBIFS_ATIME_SUPPORT[0m bool "Access time support" if [31mCONFIG_UBIFS_FS[0m depends on [31mCONFIG_UBIFS_FS[0m 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 [31mCONFIG_UBIFS_FS_ENCRYPTION[0m bool "UBIFS Encryption" depends on [31mCONFIG_UBIFS_FS[0m && [31mCONFIG_BLOCK[0m select [31mCONFIG_FS_ENCRYPTION[0m 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. |