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| author |   Mark Fasheh <mark.fasheh@oracle.com> | 2007-03-09 15:56:28 -0800 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2007-05-02 15:07:16 -0700 |
| commit | 586d232b191b776a1c6d51c10c662b8b3e238fdf (patch) | |
| tree | 8963261875e046d405d6e23b7ee67ff7c03f5c91 /fs | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 (diff) | |
| download | linux-dev-586d232b191b776a1c6d51c10c662b8b3e238fdf.tar.xz linux-dev-586d232b191b776a1c6d51c10c662b8b3e238fdf.zip | |
ocfs2: Implement compat_ioctl()
We need this to support 32 bit system calls on 64 bit kernels.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ocfs2/file.c | 6 | ||||
| -rw-r--r-- | fs/ocfs2/ioctl.c | 23 | ||||
| -rw-r--r-- | fs/ocfs2/ioctl.h | 1 | ||||
| -rw-r--r-- | fs/ocfs2/ocfs2_fs.h | 2 |
4 files changed, 32 insertions, 0 deletions
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 520a2a6d7670..3b5a1576ae10 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1853,6 +1853,9 @@ const struct file_operations ocfs2_fops = { .aio_read = ocfs2_file_aio_read, .aio_write = ocfs2_file_aio_write, .ioctl = ocfs2_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = ocfs2_compat_ioctl, +#endif .splice_read = ocfs2_file_splice_read, .splice_write = ocfs2_file_splice_write, }; @@ -1862,4 +1865,7 @@ const struct file_operations ocfs2_dops = { .readdir = ocfs2_readdir, .fsync = ocfs2_sync_file, .ioctl = ocfs2_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = ocfs2_compat_ioctl, +#endif }; diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c index 4768be5f3086..7e59c93751f0 100644 --- a/fs/ocfs2/ioctl.c +++ b/fs/ocfs2/ioctl.c @@ -134,3 +134,26 @@ int ocfs2_ioctl(struct inode * inode, struct file * filp, } } +#ifdef CONFIG_COMPAT +long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg) +{ + struct inode *inode = file->f_path.dentry->d_inode; + int ret; + + switch (cmd) { + case OCFS2_IOC32_GETFLAGS: + cmd = OCFS2_IOC_GETFLAGS; + break; + case OCFS2_IOC32_SETFLAGS: + cmd = OCFS2_IOC_SETFLAGS; + break; + default: + return -ENOIOCTLCMD; + } + + lock_kernel(); + ret = ocfs2_ioctl(inode, file, cmd, arg); + unlock_kernel(); + return ret; +} +#endif diff --git a/fs/ocfs2/ioctl.h b/fs/ocfs2/ioctl.h index 4a7c82931dba..4d6c4f430d0d 100644 --- a/fs/ocfs2/ioctl.h +++ b/fs/ocfs2/ioctl.h @@ -12,5 +12,6 @@ int ocfs2_ioctl(struct inode * inode, struct file * filp, unsigned int cmd, unsigned long arg); +long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg); #endif /* OCFS2_IOCTL_H */ diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h index 71306479c68f..f0d9eb08547a 100644 --- a/fs/ocfs2/ocfs2_fs.h +++ b/fs/ocfs2/ocfs2_fs.h @@ -166,6 +166,8 @@ */ #define OCFS2_IOC_GETFLAGS _IOR('f', 1, long) #define OCFS2_IOC_SETFLAGS _IOW('f', 2, long) +#define OCFS2_IOC32_GETFLAGS _IOR('f', 1, int) +#define OCFS2_IOC32_SETFLAGS _IOW('f', 2, int) /* * Journal Flags (ocfs2_dinode.id1.journal1.i_flags) |