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authorMark Fasheh <mark.fasheh@oracle.com>2007-03-09 16:53:21 -0800
committerMark Fasheh <mark.fasheh@oracle.com>2007-07-10 17:32:09 -0700
commitb25801038da5823bba1b5440a57ca68afc51b6bd (patch)
tree3a6f10f8ddb3a7552630d60aabbb790d1b5a7a77 /fs/ocfs2/super.h
parent063c4561f52a74de686fe0ff2f96f4f54c9fecd2 (diff)
downloadop-kernel-dev-b25801038da5823bba1b5440a57ca68afc51b6bd.zip
op-kernel-dev-b25801038da5823bba1b5440a57ca68afc51b6bd.tar.gz
ocfs2: Support xfs style space reservation ioctls
We re-use the RESVSP/UNRESVSP ioctls from xfs which allow the user to allocate and deallocate regions to a file without zeroing data or changing i_size. Though renamed, the structure passed in from user is identical to struct xfs_flock64. The three fields that are actually used right now are l_whence, l_start and l_len. This should get ocfs2 immediate compatibility with userspace software using the pre-existing xfs ioctls. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/super.h')
-rw-r--r--fs/ocfs2/super.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ocfs2/super.h b/fs/ocfs2/super.h
index 783f527..3b9cb3d 100644
--- a/fs/ocfs2/super.h
+++ b/fs/ocfs2/super.h
@@ -45,4 +45,6 @@ void __ocfs2_abort(struct super_block *sb,
#define ocfs2_abort(sb, fmt, args...) __ocfs2_abort(sb, __PRETTY_FUNCTION__, fmt, ##args)
+unsigned long long ocfs2_max_file_offset(unsigned int blockshift);
+
#endif /* OCFS2_SUPER_H */
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