GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-07-03 04:42:13 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

fs: Add new pre-allocation ioctls to vfs for compatibility with legacy xfs ioctls

Browse source 
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>
This commit is contained in:
Ankit Jain 2009-06-19 14:28:07 -04:00 • committed by Al Viro
parent 01c031945f
commit 3e63cbb1ef
5 changed files with 139 additions and 29 deletions
Download patch file Download diff file Expand all files Collapse all files

21
include/linux/falloc.h
View file

@ -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_ */