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| author | Liang Zhen <liang.zhen@intel.com> | 2016-03-22 19:03:48 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-03-28 07:30:36 -0700 |
| commit | ae664e824e3e4a85dbe857815d269f209d998e36 (patch) | |
| tree | e1317719becad3659dfcca293bf1a86071fc5800 /drivers/staging/lustre/include/linux | |
| parent | 7e221b6088eda47589480bcb29f4aaba44da49c7 (diff) | |
| download | op-kernel-dev-ae664e824e3e4a85dbe857815d269f209d998e36.zip op-kernel-dev-ae664e824e3e4a85dbe857815d269f209d998e36.tar.gz | |
staging: lustre: libcfs: replace LNET_MAX_IOCTL_BUF_LEN with something bigger
The size of LNET_MAX_IOCTL_BUF_LEN restricts the size of
libcfs ioctl to the maximum needs of the LNet layer. Since
libcfs also handles things like debugging we might need
to let user land pass more data to or from the kernel than
what is possible
Signed-off-by: Liang Zhen <liang.zhen@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435
Reviewed-on: http://review.whamcloud.com/11313
Reviewed-by: Bobi Jam <bobijam@gmail.com>
Reviewed-by: Johann Lombardi <johann.lombardi@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/lustre/include/linux')
| -rw-r--r-- | drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h index 5ca99bd..c71d125 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h @@ -49,6 +49,9 @@ struct libcfs_ioctl_hdr { __u32 ioc_version; }; +/** max size to copy from userspace */ +#define LIBCFS_IOC_DATA_MAX (128 * 1024) + struct libcfs_ioctl_data { struct libcfs_ioctl_hdr ioc_hdr; |
