diff options
| author | Liang Zhen <[email protected]> | 2016-03-22 19:03:52 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2016-03-28 07:30:36 -0700 |
| commit | ea1bffa45b1c4c0f33590850aa1cad9bc298b816 (patch) | |
| tree | 92d30d35a15b6b2bb9f4eb46130a84c3731a9928 | |
| parent | db469aa868657ccf4944fb8a8bc13b54002b356e (diff) | |
staging: lustre: libcfs: add debugging info for libcfs_ioctl
Added some lustre debugging to track down potential future
bugs.
Signed-off-by: Liang Zhen <[email protected]>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435
Reviewed-on: http://review.whamcloud.com/11313
Reviewed-by: Bobi Jam <[email protected]>
Reviewed-by: Johann Lombardi <[email protected]>
Reviewed-by: Oleg Drokin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
| -rw-r--r-- | drivers/staging/lustre/lnet/libcfs/module.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index 8beb954c152c..b7575af84f95 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -121,8 +121,11 @@ static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, /* 'cmd' and permissions get checked in our arch-specific caller */ err = libcfs_ioctl_getdata(&hdr, arg); - if (err) + if (err) { + CDEBUG_LIMIT(D_ERROR, + "libcfs ioctl: data header error %d\n", err); return err; + } /* * The libcfs_ioctl_data_adjust() function performs adjustment @@ -137,6 +140,7 @@ static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, goto out; } + CDEBUG(D_IOCTL, "libcfs ioctl cmd %lu\n", cmd); switch (cmd) { case IOC_LIBCFS_CLEAR_DEBUG: libcfs_debug_clear_buffer(); |