[PATCH V4 01/17] io_uring: increase io_kiocb->flags into 64bit

Ming Lei
2023-03-24T13:59:19Z

The 32bit io_kiocb->flags has been used up, so extend it to 64bit.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
include/linux/io_uring_types.h | 65 +++++++++++++++++-----------------
io_uring/io_uring.c | 2 +-
2 files changed, 34 insertions(+), 33 deletions(-)

diff --git a/include/linux/io_uring_types.h b/include/linux/io_uring_types.h
index 3d152bdcd30a..aab657cd2b77 100644
--- a/include/linux/io_uring_types.h
+++ b/include/linux/io_uring_types.h
@@ -409,68 +409,68 @@ enum {

enum {
/* ctx owns file */
- REQ_F_FIXED_FILE = BIT(REQ_F_FIXED_FILE_BIT),
+ REQ_F_FIXED_FILE = BIT_ULL(REQ_F_FIXED_FILE_BIT),
/* drain existing IO first */
- REQ_F_IO_DRAIN = BIT(REQ_F_IO_DRAIN_BIT),
+ REQ_F_IO_DRAIN = BIT_ULL(REQ_F_IO_DRAIN_BIT),
/* linked sqes */
- REQ_F_LINK = BIT(REQ_F_LINK_BIT),
+ REQ_F_LINK = BIT_ULL(REQ_F_LINK_BIT),
/* doesn't sever on completion < 0 */
- REQ_F_HARDLINK = BIT(REQ_F_HARDLINK_BIT),
+ REQ_F_HARDLINK = BIT_ULL(REQ_F_HARDLINK_BIT),
/* IOSQE_ASYNC */
- REQ_F_FORCE_ASYNC = BIT(REQ_F_FORCE_ASYNC_BIT),
+ REQ_F_FORCE_ASYNC = BIT_ULL(REQ_F_FORCE_ASYNC_BIT),
/* IOSQE_BUFFER_SELECT */
- REQ_F_BUFFER_SELECT = BIT(REQ_F_BUFFER_SELECT_BIT),
+ REQ_F_BUFFER_SELECT = BIT_ULL(REQ_F_BUFFER_SELECT_BIT),
/* IOSQE_CQE_SKIP_SUCCESS */
- REQ_F_CQE_SKIP = BIT(REQ_F_CQE_SKIP_BIT),
+ REQ_F_CQE_SKIP = BIT_ULL(REQ_F_CQE_SKIP_BIT),

/* fail rest of links */
- REQ_F_FAIL = BIT(REQ_F_FAIL_BIT),
+ REQ_F_FAIL = BIT_ULL(REQ_F_FAIL_BIT),
/* on inflight list, should be cancelled and waited on exit reliably */
- REQ_F_INFLIGHT = BIT(REQ_F_INFLIGHT_BIT),
+ REQ_F_INFLIGHT = BIT_ULL(REQ_F_INFLIGHT_BIT),
/* read/write uses file position */
- REQ_F_CUR_POS = BIT(REQ_F_CUR_POS_BIT),
+ REQ_F_CUR_POS = BIT_ULL(REQ_F_CUR_POS_BIT),
/* must not punt to workers */
- REQ_F_NOWAIT = BIT(REQ_F_NOWAIT_BIT),
+ REQ_F_NOWAIT = BIT_ULL(REQ_F_NOWAIT_BIT),
/* has or had linked timeout */
- REQ_F_LINK_TIMEOUT = BIT(REQ_F_LINK_TIMEOUT_BIT),
+ REQ_F_LINK_TIMEOUT = BIT_ULL(REQ_F_LINK_TIMEOUT_BIT),
/* needs cleanup */
- REQ_F_NEED_CLEANUP = BIT(REQ_F_NEED_CLEANUP_BIT),
+ REQ_F_NEED_CLEANUP = BIT_ULL(REQ_F_NEED_CLEANUP_BIT),
/* already went through poll handler */
- REQ_F_POLLED = BIT(REQ_F_POLLED_BIT),
+ REQ_F_POLLED = BIT_ULL(REQ_F_POLLED_BIT),
/* buffer already selected */
- REQ_F_BUFFER_SELECTED = BIT(REQ_F_BUFFER_SELECTED_BIT),
+ REQ_F_BUFFER_SELECTED = BIT_ULL(REQ_F_BUFFER_SELECTED_BIT),
/* buffer selected from ring, needs commit */
- REQ_F_BUFFER_RING = BIT(REQ_F_BUFFER_RING_BIT),
+ REQ_F_BUFFER_RING = BIT_ULL(REQ_F_BUFFER_RING_BIT),
/* caller should reissue async */
- REQ_F_REISSUE = BIT(REQ_F_REISSUE_BIT),
+ REQ_F_REISSUE = BIT_ULL(REQ_F_REISSUE_BIT),
/* supports async reads/writes */
- REQ_F_SUPPORT_NOWAIT = BIT(REQ_F_SUPPORT_NOWAIT_BIT),
+ REQ_F_SUPPORT_NOWAIT = BIT_ULL(REQ_F_SUPPORT_NOWAIT_BIT),
/* regular file */
- REQ_F_ISREG = BIT(REQ_F_ISREG_BIT),
+ REQ_F_ISREG = BIT_ULL(REQ_F_ISREG_BIT),
/* has creds assigned */
- REQ_F_CREDS = BIT(REQ_F_CREDS_BIT),
+ REQ_F_CREDS = BIT_ULL(REQ_F_CREDS_BIT),
/* skip refcounting if not set */
- REQ_F_REFCOUNT = BIT(REQ_F_REFCOUNT_BIT),
+ REQ_F_REFCOUNT = BIT_ULL(REQ_F_REFCOUNT_BIT),
/* there is a linked timeout that has to be armed */
- REQ_F_ARM_LTIMEOUT = BIT(REQ_F_ARM_LTIMEOUT_BIT),
+ REQ_F_ARM_LTIMEOUT = BIT_ULL(REQ_F_ARM_LTIMEOUT_BIT),
/* ->async_data allocated */
- REQ_F_ASYNC_DATA = BIT(REQ_F_ASYNC_DATA_BIT),
+ REQ_F_ASYNC_DATA = BIT_ULL(REQ_F_ASYNC_DATA_BIT),
/* don't post CQEs while failing linked requests */
- REQ_F_SKIP_LINK_CQES = BIT(REQ_F_SKIP_LINK_CQES_BIT),
+ REQ_F_SKIP_LINK_CQES = BIT_ULL(REQ_F_SKIP_LINK_CQES_BIT),
/* single poll may be active */
- REQ_F_SINGLE_POLL = BIT(REQ_F_SINGLE_POLL_BIT),
+ REQ_F_SINGLE_POLL = BIT_ULL(REQ_F_SINGLE_POLL_BIT),
/* double poll may active */
- REQ_F_DOUBLE_POLL = BIT(REQ_F_DOUBLE_POLL_BIT),
+ REQ_F_DOUBLE_POLL = BIT_ULL(REQ_F_DOUBLE_POLL_BIT),
/* request has already done partial IO */
- REQ_F_PARTIAL_IO = BIT(REQ_F_PARTIAL_IO_BIT),
+ REQ_F_PARTIAL_IO = BIT_ULL(REQ_F_PARTIAL_IO_BIT),
/* fast poll multishot mode */
- REQ_F_APOLL_MULTISHOT = BIT(REQ_F_APOLL_MULTISHOT_BIT),
+ REQ_F_APOLL_MULTISHOT = BIT_ULL(REQ_F_APOLL_MULTISHOT_BIT),
/* ->extra1 and ->extra2 are initialised */
- REQ_F_CQE32_INIT = BIT(REQ_F_CQE32_INIT_BIT),
+ REQ_F_CQE32_INIT = BIT_ULL(REQ_F_CQE32_INIT_BIT),
/* recvmsg special flag, clear EPOLLIN */
- REQ_F_CLEAR_POLLIN = BIT(REQ_F_CLEAR_POLLIN_BIT),
+ REQ_F_CLEAR_POLLIN = BIT_ULL(REQ_F_CLEAR_POLLIN_BIT),
/* hashed into ->cancel_hash_locked, protected by ->uring_lock */
- REQ_F_HASH_LOCKED = BIT(REQ_F_HASH_LOCKED_BIT),
+ REQ_F_HASH_LOCKED = BIT_ULL(REQ_F_HASH_LOCKED_BIT),
};

typedef void (*io_req_tw_func_t)(struct io_kiocb *req, bool *locked);
@@ -531,7 +531,8 @@ struct io_kiocb {
* and after selection it points to the buffer ID itself.
*/
u16 buf_index;
- unsigned int flags;
+ u32 __pad;
+ u64 flags;

struct io_cqe cqe;

diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 24be4992821b..449508912a9c 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -4486,7 +4486,7 @@ static int __init io_uring_init(void)
BUILD_BUG_ON(SQE_COMMON_FLAGS >= (1 << 8));
BUILD_BUG_ON((SQE_VALID_FLAGS | SQE_COMMON_FLAGS) != SQE_VALID_FLAGS);

- BUILD_BUG_ON(__REQ_F_LAST_BIT > 8 * sizeof(int));
+ BUILD_BUG_ON(__REQ_F_LAST_BIT > 8 * sizeof(u64));

BUILD_BUG_ON(sizeof(atomic_t) != sizeof(u32));

--
2.39.2