Commit 0b800f3d authored by Gao Xiang's avatar Gao Xiang Committed by Greg Kroah-Hartman
Browse files

staging: erofs: update Kconfig 



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: default avatarChao Yu <yuchao0@huawei.com>
Signed-off-by: default avatarGao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190731155752.210602-23-gaoxiang25@huawei.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent bc33d9f3

drivers/staging/erofs/Kconfig

+28 −26
Original line number Diff line number Diff line
@@ -7,13 +7,13 @@ config EROFS_FS 
	  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.

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