Now that lustre_ioctl.h is a UAPI header the kernel configuration option CONFIG_LUSTRE_OBD_MAX_IOCTL needs to be remove. The user land utilites will no longer be able to see this option and actually they never used this option before. Since this is the case setting the kernel configuration to something other than 8K could actually break things. The best option is just hard code it to 8K.
Signed-off-by: James Simmons <uja.o...@yahoo.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6401 Reviewed-on: https://review.whamcloud.com/25246 Reviewed-by: Quentin Bouget <quentin.bou...@cea.fr> Reviewed-by: Ben Evans <bev...@cray.com> Reviewed-by: Dmitry Eremin <dmitry.ere...@intel.com> Reviewed-by: Oleg Drokin <oleg.dro...@intel.com> Signed-off-by: James Simmons <jsimm...@infradead.org> --- .../staging/lustre/include/uapi/linux/lustre/lustre_ioctl.h | 1 - drivers/staging/lustre/lustre/Kconfig | 10 ---------- drivers/staging/lustre/lustre/obdclass/linux/linux-module.c | 2 ++ 3 files changed, 2 insertions(+), 11 deletions(-) diff --git a/drivers/staging/lustre/include/uapi/linux/lustre/lustre_ioctl.h b/drivers/staging/lustre/include/uapi/linux/lustre/lustre_ioctl.h index 3060e4d..1f52477 100644 --- a/drivers/staging/lustre/include/uapi/linux/lustre/lustre_ioctl.h +++ b/drivers/staging/lustre/include/uapi/linux/lustre/lustre_ioctl.h @@ -56,7 +56,6 @@ enum md_echo_cmd { #define OBD_IOCTL_VERSION 0x00010004 #define OBD_DEV_BY_DEVNAME 0xffffd0de -#define OBD_MAX_IOCTL_BUFFER CONFIG_LUSTRE_OBD_MAX_IOCTL_BUFFER struct obd_ioctl_data { __u32 ioc_len; diff --git a/drivers/staging/lustre/lustre/Kconfig b/drivers/staging/lustre/lustre/Kconfig index 9f5d75f..90d8269 100644 --- a/drivers/staging/lustre/lustre/Kconfig +++ b/drivers/staging/lustre/lustre/Kconfig @@ -31,16 +31,6 @@ config LUSTRE_FS See also http://wiki.lustre.org/ -config LUSTRE_OBD_MAX_IOCTL_BUFFER - int "Lustre obd max ioctl buffer bytes (default 8KB)" - depends on LUSTRE_FS - default 8192 - help - This option defines the maximum size of buffer in bytes that user space - 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 diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c index b2f5597..94af257 100644 --- a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c +++ b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c @@ -68,6 +68,8 @@ #include "../../../include/uapi/linux/lustre/lustre_ioctl.h" #include "../../../include/uapi/linux/lustre/lustre_ver.h" +#define OBD_MAX_IOCTL_BUFFER 8192 + static int obd_ioctl_is_invalid(struct obd_ioctl_data *data) { if (data->ioc_len > BIT(30)) { -- 1.8.3.1 _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
