diff options
| author |   Ankit Jain <me@ankitjain.org> | 2009-06-19 14:28:07 -0400 |
|---|---|---|
| committer |   Al Viro <viro@zeniv.linux.org.uk> | 2009-06-24 08:15:27 -0400 |
| commit | 3e63cbb1efca7dd3137de1bb475e2e068e38ef23 (patch) | |
| tree | 5a7964068266e778e94c1348192d3c85eba4ac48 /include/linux/falloc.h | |
| parent | cleanup __writeback_single_inode (diff) | |
| download | wireguard-linux-3e63cbb1efca7dd3137de1bb475e2e068e38ef23.tar.xz wireguard-linux-3e63cbb1efca7dd3137de1bb475e2e068e38ef23.zip | |
fs: Add new pre-allocation ioctls to vfs for compatibility with legacy xfs ioctls
This patch adds ioctls to vfs for compatibility with legacy XFS
pre-allocation ioctls (XFS_IOC_*RESVP*). The implementation
effectively invokes sys_fallocate for the new ioctls.
Also handles the compat_ioctl case.
Note: These legacy ioctls are also implemented by OCFS2.
[AV: folded fixes from hch]
Signed-off-by: Ankit Jain <me@ankitjain.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/falloc.h')
| -rw-r--r-- | include/linux/falloc.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/falloc.h b/include/linux/falloc.h index 8e912ab6a072..3c155107d61f 100644 --- a/include/linux/falloc.h +++ b/include/linux/falloc.h @@ -3,4 +3,25 @@ #define FALLOC_FL_KEEP_SIZE 0x01 /* default is extend size */ +#ifdef __KERNEL__ + +/* + * Space reservation ioctls and argument structure + * are designed to be compatible with the legacy XFS ioctls. + */ +struct space_resv { + __s16 l_type; + __s16 l_whence; + __s64 l_start; + __s64 l_len; /* len == 0 means until end of file */ + __s32 l_sysid; + __u32 l_pid; + __s32 l_pad[4]; /* reserved area */ +}; + +#define FS_IOC_RESVSP _IOW('X', 40, struct space_resv) +#define FS_IOC_RESVSP64 _IOW('X', 42, struct space_resv) + +#endif /* __KERNEL__ */ + #endif /* _FALLOC_H_ */ |