| From: |
| Anna Schumaker <Anna.Schumaker-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org> |
| To: |
| <linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, <linux-btrfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, <linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, <linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, <zab-ugsP4Wv/S6ZeoWH0uzbU5w@public.gmane.org>, <viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org>, <clm-b10kYP2dOMg@public.gmane.org>, <darrick.wong-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>, <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, <andros-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org>, <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org> |
| Subject: |
| [PATCH v5 0/9] VFS: In-kernel copy system call |
| Date: |
| Wed, 30 Sep 2015 13:26:44 -0400 |
| Message-ID: |
| <1443634014-3026-1-git-send-email-Anna.Schumaker@Netapp.com> |
| Archive‑link: | |
Article |
Copy system calls came up during Plumbers a while ago, mostly because several
filesystems (including NFS and XFS) are currently working on copy acceleration
implementations. We haven't heard from Zach Brown in a while, so I volunteered
to push his patches upstream so individual filesystems don't need to keep
writing their own ioctls.
This posting fixes a few issues that popped up after I submitted v4 yesterday.
Changes in v5:
- Bump syscall number (again)
- Add sys_copy_file_range() to include/linux/syscalls.h
- Change flags parameter on btrfs to an unsigned int
Anna Schumaker (6):
vfs: Copy should check len after file open mode
vfs: Copy shouldn't forbid ranges inside the same file
vfs: Copy should use file_out rather than file_in
vfs: Remove copy_file_range mountpoint checks
vfs: Add vfs_copy_file_range() support for pagecache copies
btrfs: btrfs_copy_file_range() only supports reflinks
Zach Brown (3):
vfs: add copy_file_range syscall and vfs helper
x86: add sys_copy_file_range to syscall tables
btrfs: add .copy_file_range file operation
arch/x86/entry/syscalls/syscall_32.tbl | 1 +
arch/x86/entry/syscalls/syscall_64.tbl | 1 +
fs/btrfs/ctree.h | 3 +
fs/btrfs/file.c | 1 +
fs/btrfs/ioctl.c | 95 +++++++++++++---------
fs/read_write.c | 141 +++++++++++++++++++++++++++++++++
include/linux/copy.h | 6 ++
include/linux/fs.h | 3 +
include/linux/syscalls.h | 3 +
include/uapi/asm-generic/unistd.h | 4 +-
include/uapi/linux/Kbuild | 1 +
include/uapi/linux/copy.h | 8 ++
kernel/sys_ni.c | 1 +
13 files changed, 228 insertions(+), 40 deletions(-)
create mode 100644 include/linux/copy.h
create mode 100644 include/uapi/linux/copy.h
--
2.6.0
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