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authorLinus Torvalds <torvalds@linux-foundation.org>2019-05-07 18:30:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-07 18:30:11 -0700
commit52ae2456d6a455ef958bcf1c2d1965674076887e (patch)
tree27149d7cdd7213dd31561638726c72a1f58d7c62 /include
parent67a242223958d628f0ba33283668e3ddd192d057 (diff)
parent7889f44dd9cee15aff1c3f7daf81ca4dfed48fc7 (diff)
Merge tag 'for-5.2/io_uring-20190507' of git://git.kernel.dk/linux-block
Pull io_uring updates from Jens Axboe: "Set of changes/improvements for io_uring. This contains: - Fix of a shadowed variable (Colin) - Add support for draining commands (me) - Add support for sync_file_range() (me) - Add eventfd support (me) - cpu_online() fix (Shenghui) - Removal of a redundant ->error assignment (Stefan)" * tag 'for-5.2/io_uring-20190507' of git://git.kernel.dk/linux-block: io_uring: use cpu_online() to check p->sq_thread_cpu instead of cpu_possible() io_uring: fix shadowed variable ret return code being not checked req->error only used for iopoll io_uring: add support for eventfd notifications io_uring: add support for IORING_OP_SYNC_FILE_RANGE fs: add sync_file_range() helper io_uring: add support for marking commands as draining
Diffstat (limited to 'include')
-rw-r--r--include/linux/fs.h3
-rw-r--r--include/uapi/linux/io_uring.h5
2 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 92732286b748..5174405e40d5 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2789,6 +2789,9 @@ extern int vfs_fsync_range(struct file *file, loff_t start, loff_t end,
int datasync);
extern int vfs_fsync(struct file *file, int datasync);
+extern int sync_file_range(struct file *file, loff_t offset, loff_t nbytes,
+ unsigned int flags);
+
/*
* Sync the bytes written if this was a synchronous write. Expect ki_pos
* to already be updated for the write, and will return either the amount
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
index e23408692118..a0c460025036 100644
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -26,6 +26,7 @@ struct io_uring_sqe {
__kernel_rwf_t rw_flags;
__u32 fsync_flags;
__u16 poll_events;
+ __u32 sync_range_flags;
};
__u64 user_data; /* data to be passed back at completion time */
union {
@@ -38,6 +39,7 @@ struct io_uring_sqe {
* sqe->flags
*/
#define IOSQE_FIXED_FILE (1U << 0) /* use fixed fileset */
+#define IOSQE_IO_DRAIN (1U << 1) /* issue after inflight IO */
/*
* io_uring_setup() flags
@@ -54,6 +56,7 @@ struct io_uring_sqe {
#define IORING_OP_WRITE_FIXED 5
#define IORING_OP_POLL_ADD 6
#define IORING_OP_POLL_REMOVE 7
+#define IORING_OP_SYNC_FILE_RANGE 8
/*
* sqe->fsync_flags
@@ -133,5 +136,7 @@ struct io_uring_params {
#define IORING_UNREGISTER_BUFFERS 1
#define IORING_REGISTER_FILES 2
#define IORING_UNREGISTER_FILES 3
+#define IORING_REGISTER_EVENTFD 4
+#define IORING_UNREGISTER_EVENTFD 5
#endif