diff options
Diffstat (limited to 'fs/gfs2/file.c')
| -rw-r--r-- | fs/gfs2/file.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index f0caee2b7c00..d07a295f9cac 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -6,6 +6,7 @@ #include <linux/slab.h> #include <linux/spinlock.h> +#include <linux/compat.h> #include <linux/completion.h> #include <linux/buffer_head.h> #include <linux/pagemap.h> @@ -354,6 +355,31 @@ static long gfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return -ENOTTY; } +#ifdef CONFIG_COMPAT +static long gfs2_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) +{ + switch(cmd) { + /* These are just misnamed, they actually get/put from/to user an int */ + case FS_IOC32_GETFLAGS: + cmd = FS_IOC_GETFLAGS; + break; + case FS_IOC32_SETFLAGS: + cmd = FS_IOC_SETFLAGS; + break; + /* Keep this list in sync with gfs2_ioctl */ + case FITRIM: + case FS_IOC_GETFSLABEL: + break; + default: + return -ENOIOCTLCMD; + } + + return gfs2_ioctl(filp, cmd, (unsigned long)compat_ptr(arg)); +} +#else +#define gfs2_compat_ioctl NULL +#endif + /** * gfs2_size_hint - Give a hint to the size of a write request * @filep: The struct file @@ -1295,6 +1321,7 @@ const struct file_operations gfs2_file_fops = { .write_iter = gfs2_file_write_iter, .iopoll = iomap_dio_iopoll, .unlocked_ioctl = gfs2_ioctl, + .compat_ioctl = gfs2_compat_ioctl, .mmap = gfs2_mmap, .open = gfs2_open, .release = gfs2_release, @@ -1310,6 +1337,7 @@ const struct file_operations gfs2_file_fops = { const struct file_operations gfs2_dir_fops = { .iterate_shared = gfs2_readdir, .unlocked_ioctl = gfs2_ioctl, + .compat_ioctl = gfs2_compat_ioctl, .open = gfs2_open, .release = gfs2_release, .fsync = gfs2_fsync, @@ -1326,6 +1354,7 @@ const struct file_operations gfs2_file_fops_nolock = { .write_iter = gfs2_file_write_iter, .iopoll = iomap_dio_iopoll, .unlocked_ioctl = gfs2_ioctl, + .compat_ioctl = gfs2_compat_ioctl, .mmap = gfs2_mmap, .open = gfs2_open, .release = gfs2_release, @@ -1339,6 +1368,7 @@ const struct file_operations gfs2_file_fops_nolock = { const struct file_operations gfs2_dir_fops_nolock = { .iterate_shared = gfs2_readdir, .unlocked_ioctl = gfs2_ioctl, + .compat_ioctl = gfs2_compat_ioctl, .open = gfs2_open, .release = gfs2_release, .fsync = gfs2_fsync, |