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authorAnkit Jain <me@ankitjain.org>2009-06-19 14:28:07 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2009-06-24 08:15:27 -0400
commit3e63cbb1efca7dd3137de1bb475e2e068e38ef23 (patch)
tree5a7964068266e778e94c1348192d3c85eba4ac48 /include/linux/falloc.h
parent01c031945f2755c7afaaf456088543312f2b72ea (diff)
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op-kernel-dev-3e63cbb1efca7dd3137de1bb475e2e068e38ef23.tar.gz
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.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/falloc.h b/include/linux/falloc.h
index 8e912ab..3c15510 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_ */
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