From: Gao Xiang <gaoxiang25@huawei.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
<devel@driverdev.osuosl.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
<linux-erofs@lists.ozlabs.org>, "Chao Yu" <chao@kernel.org>,
Miao Xie <miaoxie@huawei.com>, <weidu.du@huawei.com>,
Fang Wei <fangwei1@huawei.com>, Gao Xiang <gaoxiang25@huawei.com>
Subject: [PATCH 22/22] staging: erofs: update Kconfig
Date: Mon, 29 Jul 2019 14:51:59 +0800 [thread overview]
Message-ID: <20190729065159.62378-23-gaoxiang25@huawei.com> (raw)
In-Reply-To: <20190729065159.62378-1-gaoxiang25@huawei.com>
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.
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
---
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
next prev parent reply other threads:[~2019-07-29 6:53 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-29 6:51 [PATCH 00/22] staging: erofs: updates according to erofs-outofstaging v4 Gao Xiang
2019-07-29 6:51 ` [PATCH 01/22] staging: erofs: update source file headers Gao Xiang
2019-07-30 7:20 ` Greg Kroah-Hartman
2019-07-30 7:26 ` Gao Xiang
2019-07-31 6:36 ` Chao Yu
2019-07-29 6:51 ` [PATCH 02/22] staging: erofs: rename source files for better understanding Gao Xiang
2019-07-31 6:43 ` Chao Yu
2019-07-29 6:51 ` [PATCH 03/22] staging: erofs: fix dummy functions erofs_{get,list}xattr Gao Xiang
2019-07-31 6:44 ` [PATCH 03/22] staging: erofs: fix dummy functions erofs_{get, list}xattr Chao Yu
2019-07-29 6:51 ` [PATCH 04/22] staging: erofs: keep up erofs_fs.h with erofs-outofstaging patchset Gao Xiang
2019-07-31 6:46 ` Chao Yu
2019-07-29 6:51 ` [PATCH 05/22] staging: erofs: sunset erofs_workstn_{lock,unlock} Gao Xiang
2019-07-31 6:49 ` Chao Yu
2019-07-29 6:51 ` [PATCH 06/22] staging: erofs: clean up internal.h Gao Xiang
2019-07-31 6:53 ` Chao Yu
2019-07-29 6:51 ` [PATCH 07/22] staging: erofs: remove redundant #include "internal.h" Gao Xiang
2019-07-31 7:03 ` Chao Yu
2019-07-31 7:08 ` Gao Xiang
2019-07-31 12:07 ` Chao Yu
2019-07-31 12:54 ` Gao Xiang
2019-08-01 1:31 ` Chao Yu
2019-07-29 6:51 ` [PATCH 08/22] staging: erofs: kill CONFIG_EROFS_FS_IO_MAX_RETRIES Gao Xiang
2019-07-31 7:05 ` Chao Yu
2019-07-31 7:11 ` Gao Xiang
2019-07-31 12:10 ` Chao Yu
2019-07-31 12:55 ` Gao Xiang
2019-07-29 6:51 ` [PATCH 09/22] staging: erofs: clean up shrinker stuffs Gao Xiang
2019-07-31 7:41 ` Chao Yu
2019-07-29 6:51 ` [PATCH 10/22] staging: erofs: kill sbi->dev_name Gao Xiang
2019-07-31 7:46 ` Chao Yu
2019-07-29 6:51 ` [PATCH 11/22] staging: erofs: kill all failure handling in fill_super() Gao Xiang
2019-07-31 8:15 ` Chao Yu
2019-07-31 12:52 ` Gao Xiang
2019-07-29 6:51 ` [PATCH 12/22] staging: erofs: refine erofs_allocpage() Gao Xiang
2019-07-31 8:20 ` Chao Yu
2019-07-29 6:51 ` [PATCH 13/22] staging: erofs: kill CONFIG_EROFS_FS_USE_VM_MAP_RAM Gao Xiang
2019-07-31 8:27 ` Chao Yu
2019-07-29 6:51 ` [PATCH 14/22] staging: erofs: tidy up zpvec.h Gao Xiang
2019-07-31 8:28 ` Chao Yu
2019-07-29 6:51 ` [PATCH 15/22] staging: erofs: remove redundant braces in inode.c Gao Xiang
2019-07-31 8:29 ` Chao Yu
2019-07-29 6:51 ` [PATCH 16/22] staging: erofs: tidy up decompression frontend Gao Xiang
2019-07-31 9:07 ` Chao Yu
2019-07-29 6:51 ` [PATCH 17/22] staging: erofs: remove clusterbits in sbi Gao Xiang
2019-07-31 9:12 ` Chao Yu
2019-07-29 6:51 ` [PATCH 18/22] staging: erofs: turn cache strategies into mount options Gao Xiang
2019-07-31 9:23 ` Chao Yu
2019-07-29 6:51 ` [PATCH 19/22] staging: erofs: tidy up utils.c Gao Xiang
2019-07-31 9:24 ` Chao Yu
2019-07-29 6:51 ` [PATCH 20/22] staging: erofs: tidy up internal.h Gao Xiang
2019-07-31 9:25 ` Chao Yu
2019-07-29 6:51 ` [PATCH 21/22] staging: erofs: update super.c Gao Xiang
2019-07-31 9:40 ` Chao Yu
2019-07-29 6:51 ` Gao Xiang [this message]
2019-07-31 9:44 ` [PATCH 22/22] staging: erofs: update Kconfig Chao Yu
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