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

@ -72,7 +72,16 @@ do { \
#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))
#endif
#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.
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.