diff options
| author | sandeen@sandeen.net <sandeen@sandeen.net> | 2008-11-25 21:20:11 -0600 |
|---|---|---|
| committer | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-12-02 17:15:36 +1100 |
| commit | 2ee4fa5cb716eba104a4ef8efe159e1007a2aef6 (patch) | |
| tree | 943c9966c8daa913dff42216bcdc1cc4c1c835da /fs/xfs/linux-2.6 | |
| parent | 471d59103167c84f17b9bcfee22ed10b44ff206e (diff) | |
[XFS] Make the bulkstat_one compat ioctl handling more sane
Currently the compat formatter was handled by passing
in "private_data" for the xfs_bulkstat_one formatter,
which was really just another formatter... IMHO this
got confusing.
Instead, just make a new xfs_bulkstat_one_compat
formatter for xfs_bulkstat, and call it via a wrapper.
Also, don't translate the ioctl nrs into their native
counterparts, that just clouds the issue; we're in a
compat handler anyway, just switch on the 32-bit cmds.
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Diffstat (limited to 'fs/xfs/linux-2.6')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_ioctl32.c | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index d1ac5d5c009b..a97022f2d9b0 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -223,14 +223,30 @@ xfs_bulkstat_one_fmt_compat( return sizeof(*p32); } +STATIC int +xfs_bulkstat_one_compat( + xfs_mount_t *mp, /* mount point for filesystem */ + xfs_ino_t ino, /* inode number to get data for */ + void __user *buffer, /* buffer to place output in */ + int ubsize, /* size of buffer */ + void *private_data, /* my private data */ + xfs_daddr_t bno, /* starting bno of inode cluster */ + int *ubused, /* bytes used by me */ + void *dibuff, /* on-disk inode buffer */ + int *stat) /* BULKSTAT_RV_... */ +{ + return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, + xfs_bulkstat_one_fmt_compat, bno, + ubused, dibuff, stat); +} + /* copied from xfs_ioctl.c */ STATIC int -xfs_ioc_bulkstat_compat( - xfs_mount_t *mp, - unsigned int cmd, - void __user *arg) +xfs_compat_ioc_bulkstat( + xfs_mount_t *mp, + unsigned int cmd, + compat_xfs_fsop_bulkreq_t __user *p32) { - compat_xfs_fsop_bulkreq_t __user *p32 = (void __user *)arg; u32 addr; xfs_fsop_bulkreq_t bulkreq; int count; /* # of records returned */ @@ -267,14 +283,12 @@ xfs_ioc_bulkstat_compat( if (bulkreq.ubuffer == NULL) return -XFS_ERROR(EINVAL); - if (cmd == XFS_IOC_FSINUMBERS) + if (cmd == XFS_IOC_FSINUMBERS_32) error = xfs_inumbers(mp, &inlast, &count, bulkreq.ubuffer, xfs_inumbers_fmt_compat); else { - /* declare a var to get a warning in case the type changes */ - bulkstat_one_fmt_pf formatter = xfs_bulkstat_one_fmt_compat; error = xfs_bulkstat(mp, &inlast, &count, - xfs_bulkstat_one, formatter, + xfs_bulkstat_one_compat, NULL, sizeof(compat_xfs_bstat_t), bulkreq.ubuffer, BULKSTAT_FG_QUICK, &done); } @@ -422,9 +436,7 @@ xfs_compat_ioctl( case XFS_IOC_FSBULKSTAT_32: case XFS_IOC_FSBULKSTAT_SINGLE_32: case XFS_IOC_FSINUMBERS_32: - cmd = _NATIVE_IOC(cmd, struct xfs_fsop_bulkreq); - return xfs_ioc_bulkstat_compat(XFS_I(inode)->i_mount, - cmd, (void __user*)arg); + return xfs_compat_ioc_bulkstat(mp, cmd, arg); case XFS_IOC_FD_TO_HANDLE_32: case XFS_IOC_PATH_TO_HANDLE_32: case XFS_IOC_PATH_TO_FSHANDLE_32: { |