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| author | David S. Miller | 2016-10-14 16:00:27 +0200 |
|---|---|---|
| committer | David S. Miller | 2016-10-14 16:00:27 +0200 |
| commit | 8eed1cd4cd0c6f41d40c345265f20dc7688ffcca (patch) | |
| tree | 5adaacccdc1e519e3861b8f7333f39350205a472 /include/uapi | |
| parent | Merge branch 's390-net' (diff) | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff) | |
| download | kernel-qcow2-linux-8eed1cd4cd0c6f41d40c345265f20dc7688ffcca.tar.gz kernel-qcow2-linux-8eed1cd4cd0c6f41d40c345265f20dc7688ffcca.tar.xz kernel-qcow2-linux-8eed1cd4cd0c6f41d40c345265f20dc7688ffcca.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/falloc.h | 18 | ||||
| -rw-r--r-- | include/uapi/linux/fs.h | 4 | ||||
| -rw-r--r-- | include/uapi/linux/nfs4.h | 5 |
3 files changed, 24 insertions, 3 deletions
diff --git a/include/uapi/linux/falloc.h b/include/uapi/linux/falloc.h index 3e445a760f14..b075f601919b 100644 --- a/include/uapi/linux/falloc.h +++ b/include/uapi/linux/falloc.h @@ -58,4 +58,22 @@ */ #define FALLOC_FL_INSERT_RANGE 0x20 +/* + * FALLOC_FL_UNSHARE_RANGE is used to unshare shared blocks within the + * file size without overwriting any existing data. The purpose of this + * call is to preemptively reallocate any blocks that are subject to + * copy-on-write. + * + * Different filesystems may implement different limitations on the + * granularity of the operation. Most will limit operations to filesystem + * block size boundaries, but this boundary may be larger or smaller + * depending on the filesystem and/or the configuration of the filesystem + * or file. + * + * This flag can only be used with allocate-mode fallocate, which is + * to say that it cannot be used with the punch, zero, collapse, or + * insert range modes. + */ +#define FALLOC_FL_UNSHARE_RANGE 0x40 + #endif /* _UAPI_FALLOC_H_ */ diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index 2473272169f2..acb2b6152ba0 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -158,7 +158,8 @@ struct fsxattr { __u32 fsx_extsize; /* extsize field value (get/set)*/ __u32 fsx_nextents; /* nextents field value (get) */ __u32 fsx_projid; /* project identifier (get/set) */ - unsigned char fsx_pad[12]; + __u32 fsx_cowextsize; /* CoW extsize field value (get/set)*/ + unsigned char fsx_pad[8]; }; /* @@ -179,6 +180,7 @@ struct fsxattr { #define FS_XFLAG_NODEFRAG 0x00002000 /* do not defragment */ #define FS_XFLAG_FILESTREAM 0x00004000 /* use filestream allocator */ #define FS_XFLAG_DAX 0x00008000 /* use DAX for IO */ +#define FS_XFLAG_COWEXTSIZE 0x00010000 /* CoW extent size allocator hint */ #define FS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */ /* the read-only stuff doesn't really belong here, but any other place is diff --git a/include/uapi/linux/nfs4.h b/include/uapi/linux/nfs4.h index 2b871e0858d9..4ae62796bfde 100644 --- a/include/uapi/linux/nfs4.h +++ b/include/uapi/linux/nfs4.h @@ -39,8 +39,9 @@ #define NFS4_FH_VOL_MIGRATION 0x0004 #define NFS4_FH_VOL_RENAME 0x0008 -#define NFS4_OPEN_RESULT_CONFIRM 0x0002 -#define NFS4_OPEN_RESULT_LOCKTYPE_POSIX 0x0004 +#define NFS4_OPEN_RESULT_CONFIRM 0x0002 +#define NFS4_OPEN_RESULT_LOCKTYPE_POSIX 0x0004 +#define NFS4_OPEN_RESULT_MAY_NOTIFY_LOCK 0x0020 #define NFS4_SHARE_ACCESS_MASK 0x000F #define NFS4_SHARE_ACCESS_READ 0x0001 |