openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

staging/lustre/libcfs: restore LINVRNT 

It was mistakenly removed by coan. Add it back and also with a new
Kconfig option to enable it.

Signed-off-by: Peng Tao <tao.peng@emc.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peng Tao 2013-06-06 22:59:11 +08:00 committed by Greg Kroah-Hartman
parent d29dc2e418
commit 4b5b4c7222
2 changed files with 19 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
View File

@ -72,7 +72,16 @@ do { \
#define LASSERT(cond) LASSERTF(cond, "\n") #define LASSERT(cond) LASSERTF(cond, "\n")
#ifdef CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK
/**
* This is for more expensive checks that one doesn't want to be enabled all
* the time. LINVRNT() has to be explicitly enabled by
* CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK option.
*/
# define LINVRNT(exp) LASSERT(exp)
#else
# define LINVRNT(exp) ((void)sizeof!!(exp)) # define LINVRNT(exp) ((void)sizeof!!(exp))
#endif
#define KLASSERT(e) LASSERT(e) #define KLASSERT(e) LASSERT(e)

10
drivers/staging/lustre/lustre/Kconfig
View File

@ -31,3 +31,13 @@ config LUSTRE_OBD_MAX_IOCTL_BUFFER
applications can pass to Lustre kernel module through ioctl interface. applications can pass to Lustre kernel module through ioctl interface.
If unsure, use default. If unsure, use default.
config LUSTRE_DEBUG_EXPENSIVE_CHECK
bool "Enable Lustre DEBUG checks"
depends on LUSTRE_FS
default false
help
This option is mainly for debug purpose. It enables Lustre code to do
expensive checks that may have a performance impact.
Use with caution. If unsure, say N.