[PATCH 33/71] xfs: support FS_XFLAG_REFLINK on reflink filesystems
"Darrick J. Wong" <[email protected]>
| Newsgroups | gmane.comp.file-systems.xfs.general |
|---|---|
| Message-ID | <[email protected]> |
Add support for reporting the "reflink" inode flag in the XFS-specific getxflags ioctl, and allow the user to clear the flag if file size is zero. v2: Move the reflink flag out of the way of the DAX flag, and add the new cowextsize flag. v3: do not report (or allow changes to) FL_NOCOW_FL, since we don't support a flag to prevent CoWing and the reflink flag is a poor proxy. We'll try to design away the need for the NOCOW flag. Signed-off-by: Darrick J. Wong <[email protected]> --- include/darwin.h | 8 ++++++++ include/freebsd.h | 7 +++++++ include/irix.h | 7 +++++++ include/linux.h | 8 ++++++++ 4 files changed, 30 insertions(+) diff --git a/include/darwin.h b/include/darwin.h index 140386a..71a63a1 100644 --- a/include/darwin.h +++ b/include/darwin.h @@ -320,4 +320,12 @@ struct fsxattr { #endif +#ifndef FS_XFLAG_REFLINK +#define FS_XFLAG_REFLINK 0x00010000 /* file is reflinked */ +#endif + +#ifndef FS_XFLAG_COWEXTSIZE +#define FS_XFLAG_COWEXTSIZE 0x00020000 /* CoW extent size allocator hint */ +#endif + #endif /* __XFS_DARWIN_H__ */ diff --git a/include/freebsd.h b/include/freebsd.h index 668dcea..e8970a5 100644 --- a/include/freebsd.h +++ b/include/freebsd.h @@ -209,5 +209,12 @@ struct fsxattr { #endif +#ifndef FS_XFLAG_REFLINK +#define FS_XFLAG_REFLINK 0x00010000 /* file is reflinked */ +#endif + +#ifndef FS_XFLAG_COWEXTSIZE +#define FS_XFLAG_COWEXTSIZE 0x00020000 /* CoW extent size allocator hint */ +#endif #endif /* __XFS_FREEBSD_H__ */ diff --git a/include/irix.h b/include/irix.h index 8b9d588..fea7c7c 100644 --- a/include/irix.h +++ b/include/irix.h @@ -454,6 +454,13 @@ struct fsxattr { #endif +#ifndef FS_XFLAG_REFLINK +#define FS_XFLAG_REFLINK 0x00010000 /* file is reflinked */ +#endif + +#ifndef FS_XFLAG_COWEXTSIZE +#define FS_XFLAG_COWEXTSIZE 0x00020000 /* CoW extent size allocator hint */ +#endif /** * Abstraction of mountpoints. diff --git a/include/linux.h b/include/linux.h index 1663930..67337d6 100644 --- a/include/linux.h +++ b/include/linux.h @@ -209,4 +209,12 @@ struct fsxattr { #endif +#ifndef FS_XFLAG_REFLINK +#define FS_XFLAG_REFLINK 0x00010000 /* file is reflinked */ +#endif + +#ifndef FS_XFLAG_COWEXTSIZE +#define FS_XFLAG_COWEXTSIZE 0x00020000 /* CoW extent size allocator hint */ +#endif + #endif /* __XFS_LINUX_H__ */ _______________________________________________ xfs mailing list [email protected] http://oss.sgi.com/mailman/listinfo/xfs