Lines Matching refs:iocb
561 void kiocb_set_cancel_fn(struct kiocb *iocb, kiocb_cancel_fn *cancel) in kiocb_set_cancel_fn() argument
563 struct aio_kiocb *req = container_of(iocb, struct aio_kiocb, rw); in kiocb_set_cancel_fn()
1075 static inline void iocb_destroy(struct aio_kiocb *iocb) in iocb_destroy() argument
1077 if (iocb->ki_eventfd) in iocb_destroy()
1078 eventfd_ctx_put(iocb->ki_eventfd); in iocb_destroy()
1079 if (iocb->ki_filp) in iocb_destroy()
1080 fput(iocb->ki_filp); in iocb_destroy()
1081 percpu_ref_put(&iocb->ki_ctx->reqs); in iocb_destroy()
1082 kmem_cache_free(kiocb_cachep, iocb); in iocb_destroy()
1088 static void aio_complete(struct aio_kiocb *iocb) in aio_complete() argument
1090 struct kioctx *ctx = iocb->ki_ctx; in aio_complete()
1112 *event = iocb->ki_res; in aio_complete()
1117 pr_debug("%p[%u]: %p: %p %Lx %Lx %Lx\n", ctx, tail, iocb, in aio_complete()
1118 (void __user *)(unsigned long)iocb->ki_res.obj, in aio_complete()
1119 iocb->ki_res.data, iocb->ki_res.res, iocb->ki_res.res2); in aio_complete()
1139 pr_debug("added to ring %p at [%u]\n", iocb, tail); in aio_complete()
1146 if (iocb->ki_eventfd) in aio_complete()
1147 eventfd_signal(iocb->ki_eventfd, 1); in aio_complete()
1161 static inline void iocb_put(struct aio_kiocb *iocb) in iocb_put() argument
1163 if (refcount_dec_and_test(&iocb->ki_refcnt)) { in iocb_put()
1164 aio_complete(iocb); in iocb_put()
1165 iocb_destroy(iocb); in iocb_put()
1411 static void aio_remove_iocb(struct aio_kiocb *iocb) in aio_remove_iocb() argument
1413 struct kioctx *ctx = iocb->ki_ctx; in aio_remove_iocb()
1417 list_del(&iocb->ki_list); in aio_remove_iocb()
1423 struct aio_kiocb *iocb = container_of(kiocb, struct aio_kiocb, rw); in aio_complete_rw() local
1425 if (!list_empty_careful(&iocb->ki_list)) in aio_complete_rw()
1426 aio_remove_iocb(iocb); in aio_complete_rw()
1440 iocb->ki_res.res = res; in aio_complete_rw()
1441 iocb->ki_res.res2 = res2; in aio_complete_rw()
1442 iocb_put(iocb); in aio_complete_rw()
1445 static int aio_prep_rw(struct kiocb *req, const struct iocb *iocb) in aio_prep_rw() argument
1451 req->ki_pos = iocb->aio_offset; in aio_prep_rw()
1453 if (iocb->aio_flags & IOCB_FLAG_RESFD) in aio_prep_rw()
1456 if (iocb->aio_flags & IOCB_FLAG_IOPRIO) { in aio_prep_rw()
1462 ret = ioprio_check_cap(iocb->aio_reqprio); in aio_prep_rw()
1468 req->ki_ioprio = iocb->aio_reqprio; in aio_prep_rw()
1472 ret = kiocb_set_rw_flags(req, iocb->aio_rw_flags); in aio_prep_rw()
1480 static ssize_t aio_setup_rw(int rw, const struct iocb *iocb, in aio_setup_rw() argument
1484 void __user *buf = (void __user *)(uintptr_t)iocb->aio_buf; in aio_setup_rw()
1485 size_t len = iocb->aio_nbytes; in aio_setup_rw()
1520 static int aio_read(struct kiocb *req, const struct iocb *iocb, in aio_read() argument
1528 ret = aio_prep_rw(req, iocb); in aio_read()
1538 ret = aio_setup_rw(READ, iocb, &iovec, vectored, compat, &iter); in aio_read()
1548 static int aio_write(struct kiocb *req, const struct iocb *iocb, in aio_write() argument
1556 ret = aio_prep_rw(req, iocb); in aio_write()
1566 ret = aio_setup_rw(WRITE, iocb, &iovec, vectored, compat, &iter); in aio_write()
1591 struct aio_kiocb *iocb = container_of(work, struct aio_kiocb, fsync.work); in aio_fsync_work() local
1593 iocb->ki_res.res = vfs_fsync(iocb->fsync.file, iocb->fsync.datasync); in aio_fsync_work()
1594 iocb_put(iocb); in aio_fsync_work()
1597 static int aio_fsync(struct fsync_iocb *req, const struct iocb *iocb, in aio_fsync() argument
1600 if (unlikely(iocb->aio_buf || iocb->aio_offset || iocb->aio_nbytes || in aio_fsync()
1601 iocb->aio_rw_flags)) in aio_fsync()
1616 struct aio_kiocb *iocb = container_of(req, struct aio_kiocb, poll); in aio_poll_complete_work() local
1618 struct kioctx *ctx = iocb->ki_ctx; in aio_poll_complete_work()
1637 list_del_init(&iocb->ki_list); in aio_poll_complete_work()
1638 iocb->ki_res.res = mangle_poll(mask); in aio_poll_complete_work()
1642 iocb_put(iocb); in aio_poll_complete_work()
1646 static int aio_poll_cancel(struct kiocb *iocb) in aio_poll_cancel() argument
1648 struct aio_kiocb *aiocb = container_of(iocb, struct aio_kiocb, rw); in aio_poll_cancel()
1666 struct aio_kiocb *iocb = container_of(req, struct aio_kiocb, poll); in aio_poll_wake() local
1676 if (mask && spin_trylock_irqsave(&iocb->ki_ctx->ctx_lock, flags)) { in aio_poll_wake()
1683 list_del(&iocb->ki_list); in aio_poll_wake()
1684 iocb->ki_res.res = mangle_poll(mask); in aio_poll_wake()
1686 spin_unlock_irqrestore(&iocb->ki_ctx->ctx_lock, flags); in aio_poll_wake()
1687 iocb_put(iocb); in aio_poll_wake()
1696 struct aio_kiocb *iocb; member
1707 if (unlikely(pt->iocb->poll.head)) { in aio_poll_queue_proc()
1713 pt->iocb->poll.head = head; in aio_poll_queue_proc()
1714 add_wait_queue(head, &pt->iocb->poll.wait); in aio_poll_queue_proc()
1717 static int aio_poll(struct aio_kiocb *aiocb, const struct iocb *iocb) in aio_poll() argument
1726 if ((u16)iocb->aio_buf != iocb->aio_buf) in aio_poll()
1729 if (iocb->aio_offset || iocb->aio_nbytes || iocb->aio_rw_flags) in aio_poll()
1733 req->events = demangle_poll(iocb->aio_buf) | EPOLLERR | EPOLLHUP; in aio_poll()
1741 apt.iocb = aiocb; in aio_poll()
1778 static int __io_submit_one(struct kioctx *ctx, const struct iocb *iocb, in __io_submit_one() argument
1779 struct iocb __user *user_iocb, struct aio_kiocb *req, in __io_submit_one()
1782 req->ki_filp = fget(iocb->aio_fildes); in __io_submit_one()
1786 if (iocb->aio_flags & IOCB_FLAG_RESFD) { in __io_submit_one()
1794 eventfd = eventfd_ctx_fdget(iocb->aio_resfd); in __io_submit_one()
1807 req->ki_res.data = iocb->aio_data; in __io_submit_one()
1811 switch (iocb->aio_lio_opcode) { in __io_submit_one()
1813 return aio_read(&req->rw, iocb, false, compat); in __io_submit_one()
1815 return aio_write(&req->rw, iocb, false, compat); in __io_submit_one()
1817 return aio_read(&req->rw, iocb, true, compat); in __io_submit_one()
1819 return aio_write(&req->rw, iocb, true, compat); in __io_submit_one()
1821 return aio_fsync(&req->fsync, iocb, false); in __io_submit_one()
1823 return aio_fsync(&req->fsync, iocb, true); in __io_submit_one()
1825 return aio_poll(req, iocb); in __io_submit_one()
1827 pr_debug("invalid aio operation %d\n", iocb->aio_lio_opcode); in __io_submit_one()
1832 static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb, in io_submit_one()
1836 struct iocb iocb; in io_submit_one() local
1839 if (unlikely(copy_from_user(&iocb, user_iocb, sizeof(iocb)))) in io_submit_one()
1843 if (unlikely(iocb.aio_reserved2)) { in io_submit_one()
1850 (iocb.aio_buf != (unsigned long)iocb.aio_buf) || in io_submit_one()
1851 (iocb.aio_nbytes != (size_t)iocb.aio_nbytes) || in io_submit_one()
1852 ((ssize_t)iocb.aio_nbytes < 0) in io_submit_one()
1862 err = __io_submit_one(ctx, &iocb, user_iocb, req, compat); in io_submit_one()
1892 struct iocb __user * __user *, iocbpp) in SYSCALL_DEFINE3()
1914 struct iocb __user *user_iocb; in SYSCALL_DEFINE3()
1985 SYSCALL_DEFINE3(io_cancel, aio_context_t, ctx_id, struct iocb __user *, iocb, in SYSCALL_DEFINE3() argument
1992 u64 obj = (u64)(unsigned long)iocb; in SYSCALL_DEFINE3()
1994 if (unlikely(get_user(key, &iocb->aio_key))) in SYSCALL_DEFINE3()