diff options
| author | Colin Ian King <[email protected]> | 2016-03-30 23:00:23 +0100 |
|---|---|---|
| committer | Ned Bass <[email protected]> | 2016-05-01 18:26:09 -0400 |
| commit | 354424de5a744abf577a116389eb5902aea6b7f8 (patch) | |
| tree | 9fa8461298a4ee70aad833f5ae2b8f6c58786935 /module/zfs | |
| parent | d746e2ea0e7a564888f078fc96a280ff85d0e6dd (diff) | |
Add support 32 bit FS_IOC32_{GET|SET}FLAGS compat ioctls
We need 32 bit userspace FS_IOC32_GETFLAGS and FS_IOC32_SETFLAGS
compat ioctls for systems such as powerpc64. We use the normal
compat ioctl idiom as used by a variety of file systems to provide
this support.
Signed-off-by: Colin Ian King <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #4477
Diffstat (limited to 'module/zfs')
| -rw-r--r-- | module/zfs/zpl_file.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/module/zfs/zpl_file.c b/module/zfs/zpl_file.c index a23bc7d8d..5c430c7ca 100644 --- a/module/zfs/zpl_file.c +++ b/module/zfs/zpl_file.c @@ -24,6 +24,9 @@ */ +#ifdef CONFIG_COMPAT +#include <linux/compat.h> +#endif #include <sys/dmu_objset.h> #include <sys/zfs_vfsops.h> #include <sys/zfs_vnops.h> @@ -798,7 +801,17 @@ zpl_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) static long zpl_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { - return (zpl_ioctl(filp, cmd, arg)); + switch (cmd) { + case FS_IOC32_GETFLAGS: + cmd = FS_IOC_GETFLAGS; + break; + case FS_IOC32_SETFLAGS: + cmd = FS_IOC_SETFLAGS; + break; + default: + return (-ENOTTY); + } + return (zpl_ioctl(filp, cmd, (unsigned long)compat_ptr(arg))); } #endif /* CONFIG_COMPAT */ |