diff options
| author | Liang Zhen <liang.zhen@intel.com> | 2016-03-22 23:03:51 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-03-28 14:30:36 (GMT) |
| commit | db469aa868657ccf4944fb8a8bc13b54002b356e (patch) | |
| tree | bbafaff0066fd6a9849bd4406e31f00096ed0ea2 /drivers/staging/lustre/lnet/libcfs | |
| parent | e4efb34a3fc335ea7c837a10f5c03fe446e176d0 (diff) | |
| download | linux-db469aa868657ccf4944fb8a8bc13b54002b356e.tar.xz | |
staging: lustre: libcfs: merge libcfs_ioctl_handle into libcfs_ioctl
This is apart of the cleanup of libcfs_ioctl* code. In this
part we turn libcfs_ioctl_handle into libcfs_ioctl since
libcfs_ioctl is now a skeleton function.
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/lnet/libcfs')
| -rw-r--r-- | drivers/staging/lustre/lnet/libcfs/module.c | 37 |
1 files changed, 15 insertions, 22 deletions
diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index 5a20e53..8beb954 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -112,11 +112,17 @@ int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand) } EXPORT_SYMBOL(libcfs_deregister_ioctl); -static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd, - void __user *arg, struct libcfs_ioctl_hdr *hdr) +static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, + void __user *arg) { struct libcfs_ioctl_data *data = NULL; - int err = 0; + struct libcfs_ioctl_hdr *hdr; + int err; + + /* 'cmd' and permissions get checked in our arch-specific caller */ + err = libcfs_ioctl_getdata(&hdr, arg); + if (err) + return err; /* * The libcfs_ioctl_data_adjust() function performs adjustment @@ -128,7 +134,7 @@ static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd, data = container_of(hdr, struct libcfs_ioctl_data, ioc_hdr); err = libcfs_ioctl_data_adjust(data); if (err) - return err; + goto out; } switch (cmd) { @@ -141,8 +147,10 @@ static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd, */ case IOC_LIBCFS_MARK_DEBUG: if (!data->ioc_inlbuf1 || - data->ioc_inlbuf1[data->ioc_inllen1 - 1] != '\0') - return -EINVAL; + data->ioc_inlbuf1[data->ioc_inllen1 - 1] != '\0') { + err = -EINVAL; + goto out; + } libcfs_debug_mark_buffer(data->ioc_inlbuf1); break; @@ -163,22 +171,7 @@ static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd, up_read(&ioctl_list_sem); break; } } - - return err; -} - -static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, - void __user *arg) -{ - struct libcfs_ioctl_hdr *hdr; - int err = 0; - - /* 'cmd' and permissions get checked in our arch-specific caller */ - err = libcfs_ioctl_getdata(&hdr, arg); - if (err) - return err; - - err = libcfs_ioctl_handle(pfile, cmd, arg, hdr); +out: LIBCFS_FREE(hdr, hdr->ioc_len); return err; } |