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authorWeiXiong Liao <liaoweixiong@allwinnertech.com>2020-03-25 11:55:00 +0300
committerKees Cook <keescook@chromium.org>2020-05-30 20:34:03 +0300
commitcc9c4d1b5597167f8e8c92f6b61e1cda6d01884d (patch)
treee85923479c50fbc727359bd5add5bfd5581ab040 /fs/pstore/Kconfig
parent0dc068265a1c5923ffebf40388fbe93050a77ad1 (diff)
downloadlinux-cc9c4d1b5597167f8e8c92f6b61e1cda6d01884d.tar.xz
pstore/zone,blk: Add console frontend support
Support backend for console. To enable console backend, just make console_size be greater than 0 and a multiple of 4096. Signed-off-by: WeiXiong Liao <liaoweixiong@allwinnertech.com> Link: https://lore.kernel.org/lkml/20200511233229.27745-5-keescook@chromium.org/ Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'fs/pstore/Kconfig')
-rw-r--r--fs/pstore/Kconfig18
1 files changed, 15 insertions, 3 deletions
diff --git a/fs/pstore/Kconfig b/fs/pstore/Kconfig
index ef01c48f0ff7..126aa6c3ecf2 100644
--- a/fs/pstore/Kconfig
+++ b/fs/pstore/Kconfig
@@ -180,11 +180,11 @@ config PSTORE_BLK_BLKDEV
help
Which block device should be used for pstore/blk.
- It accept the following variants:
+ It accepts the following variants:
1) <hex_major><hex_minor> device number in hexadecimal representation,
with no leading 0x, for example b302.
- 2) /dev/<disk_name> represents the device number of disk
- 3) /dev/<disk_name><decimal> represents the device number
+ 2) /dev/<disk_name> represents the device name of disk
+ 3) /dev/<disk_name><decimal> represents the device name and number
of partition - device number of disk plus the partition number
4) /dev/<disk_name>p<decimal> - same as the above, this form is
used when disk name of partitioned disk ends with a digit.
@@ -236,3 +236,15 @@ config PSTORE_BLK_PMSG_SIZE
NOTE that, both Kconfig and module parameters can configure
pstore/blk, but module parameters have priority over Kconfig.
+
+config PSTORE_BLK_CONSOLE_SIZE
+ int "Size in Kbytes of console log to store"
+ depends on PSTORE_BLK
+ depends on PSTORE_CONSOLE
+ default 64
+ help
+ This just sets size of console log (console_size) to store via
+ pstore/blk. The size is in KB and must be a multiple of 4.
+
+ NOTE that, both Kconfig and module parameters can configure
+ pstore/blk, but module parameters have priority over Kconfig.