Keep in line with erofs-outofstaging patchset: - turn on CONFIG_EROFS_FS_ZIP by default; - turn on CONFIG_EROFS_FS_SECURITY by default suggested by David; - update Kconfig description. Reviewed-by: Chao Yu <yuchao0@xxxxxxxxxx> Signed-off-by: Gao Xiang <gaoxiang25@xxxxxxxxxx> --- drivers/staging/erofs/Kconfig | 54 ++++++++++++++++++----------------- 1 file changed, 28 insertions(+), 26 deletions(-) diff --git a/drivers/staging/erofs/Kconfig b/drivers/staging/erofs/Kconfig index 1a8e48943e50..16316d1adca3 100644 --- a/drivers/staging/erofs/Kconfig +++ b/drivers/staging/erofs/Kconfig @@ -4,16 +4,16 @@ config EROFS_FS tristate "EROFS filesystem support" depends on BLOCK help - EROFS(Enhanced Read-Only File System) is a lightweight + EROFS (Enhanced Read-Only File System) is a lightweight read-only file system with modern designs (eg. page-sized blocks, inline xattrs/data, etc.) for scenarios which need - high-performance read-only requirements, eg. firmwares in - mobile phone or LIVECDs. + high-performance read-only requirements, e.g. Android OS + for mobile phones and LIVECDs. - It also provides VLE compression support, focusing on - random read improvements, keeping relatively lower - compression ratios, which is useful for high-performance - devices with limited memory and ROM space. + It also provides fixed-sized output compression support, + which improves storage density, keeps relatively higher + compression ratios, which is more useful to achieve high + performance for embedded devices with limited memory. If unsure, say N. @@ -21,11 +21,19 @@ config EROFS_FS_DEBUG bool "EROFS debugging feature" depends on EROFS_FS help - Print EROFS debugging messages and enable more BUG_ONs - which check the filesystem consistency aggressively. + Print debugging messages and enable more BUG_ONs which check + filesystem consistency and find potential issues aggressively, + which can be used for Android eng build, for example. For daily use, say N. +config EROFS_FAULT_INJECTION + bool "EROFS fault injection facility" + depends on EROFS_FS + help + Test EROFS to inject faults such as ENOMEM, EIO, and so on. + If unsure, say N. + config EROFS_FS_XATTR bool "EROFS extended attributes" depends on EROFS_FS @@ -54,6 +62,7 @@ config EROFS_FS_POSIX_ACL config EROFS_FS_SECURITY bool "EROFS Security Labels" depends on EROFS_FS_XATTR + default y help Security labels provide an access control facility to support Linux Security Models (LSMs) accepted by AppArmor, SELinux, Smack and TOMOYO @@ -63,22 +72,15 @@ config EROFS_FS_SECURITY If you are not using a security module, say N. -config EROFS_FAULT_INJECTION - bool "EROFS fault injection facility" - depends on EROFS_FS - help - Test EROFS to inject faults such as ENOMEM, EIO, and so on. - If unsure, say N. - config EROFS_FS_ZIP - bool "EROFS Data Compresssion Support" + bool "EROFS Data Compression Support" depends on EROFS_FS select LZ4_DECOMPRESS + default y help - Currently we support LZ4 VLE Compression only. - Play at your own risk. + Enable fixed-sized output compression for EROFS. - If you don't want to use compression feature, say N. + If you don't want to enable compression feature, say N. config EROFS_FS_CLUSTER_PAGE_LIMIT int "EROFS Cluster Pages Hard Limit" @@ -86,11 +88,11 @@ config EROFS_FS_CLUSTER_PAGE_LIMIT range 1 256 default "1" help - Indicates VLE compressed pages hard limit of a - compressed cluster. + Indicates maximum # of pages of a compressed + physical cluster. - For example, if files of a image are compressed - into 8k-unit, the hard limit should not be less - than 2. Otherwise, the image cannot be mounted - correctly on this kernel. + For example, if files in a image were compressed + into 8k-unit, hard limit should not be configured + less than 2. Otherwise, the image will be refused + to mount on this kernel. -- 2.17.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
