Lines Matching refs:iocb
591 void kiocb_set_cancel_fn(struct kiocb *iocb, kiocb_cancel_fn *cancel) in kiocb_set_cancel_fn() argument
601 if (!(iocb->ki_flags & IOCB_AIO_RW)) in kiocb_set_cancel_fn()
604 req = container_of(iocb, struct aio_kiocb, rw); in kiocb_set_cancel_fn()
1110 static inline void iocb_destroy(struct aio_kiocb *iocb) in iocb_destroy() argument
1112 if (iocb->ki_eventfd) in iocb_destroy()
1113 eventfd_ctx_put(iocb->ki_eventfd); in iocb_destroy()
1114 if (iocb->ki_filp) in iocb_destroy()
1115 fput(iocb->ki_filp); in iocb_destroy()
1116 percpu_ref_put(&iocb->ki_ctx->reqs); in iocb_destroy()
1117 kmem_cache_free(kiocb_cachep, iocb); in iocb_destroy()
1123 static void aio_complete(struct aio_kiocb *iocb) in aio_complete() argument
1125 struct kioctx *ctx = iocb->ki_ctx; in aio_complete()
1147 *event = iocb->ki_res; in aio_complete()
1151 pr_debug("%p[%u]: %p: %p %Lx %Lx %Lx\n", ctx, tail, iocb, in aio_complete()
1152 (void __user *)(unsigned long)iocb->ki_res.obj, in aio_complete()
1153 iocb->ki_res.data, iocb->ki_res.res, iocb->ki_res.res2); in aio_complete()
1172 pr_debug("added to ring %p at [%u]\n", iocb, tail); in aio_complete()
1179 if (iocb->ki_eventfd) in aio_complete()
1180 eventfd_signal(iocb->ki_eventfd, 1); in aio_complete()
1194 static inline void iocb_put(struct aio_kiocb *iocb) in iocb_put() argument
1196 if (refcount_dec_and_test(&iocb->ki_refcnt)) { in iocb_put()
1197 aio_complete(iocb); in iocb_put()
1198 iocb_destroy(iocb); in iocb_put()
1441 static void aio_remove_iocb(struct aio_kiocb *iocb) in aio_remove_iocb() argument
1443 struct kioctx *ctx = iocb->ki_ctx; in aio_remove_iocb()
1447 list_del(&iocb->ki_list); in aio_remove_iocb()
1453 struct aio_kiocb *iocb = container_of(kiocb, struct aio_kiocb, rw); in aio_complete_rw() local
1455 if (!list_empty_careful(&iocb->ki_list)) in aio_complete_rw()
1456 aio_remove_iocb(iocb); in aio_complete_rw()
1465 iocb->ki_res.res = res; in aio_complete_rw()
1466 iocb->ki_res.res2 = 0; in aio_complete_rw()
1467 iocb_put(iocb); in aio_complete_rw()
1470 static int aio_prep_rw(struct kiocb *req, const struct iocb *iocb) in aio_prep_rw() argument
1476 req->ki_pos = iocb->aio_offset; in aio_prep_rw()
1478 if (iocb->aio_flags & IOCB_FLAG_RESFD) in aio_prep_rw()
1480 if (iocb->aio_flags & IOCB_FLAG_IOPRIO) { in aio_prep_rw()
1486 ret = ioprio_check_cap(iocb->aio_reqprio); in aio_prep_rw()
1492 req->ki_ioprio = iocb->aio_reqprio; in aio_prep_rw()
1496 ret = kiocb_set_rw_flags(req, iocb->aio_rw_flags); in aio_prep_rw()
1504 static ssize_t aio_setup_rw(int rw, const struct iocb *iocb, in aio_setup_rw() argument
1508 void __user *buf = (void __user *)(uintptr_t)iocb->aio_buf; in aio_setup_rw()
1509 size_t len = iocb->aio_nbytes; in aio_setup_rw()
1540 static int aio_read(struct kiocb *req, const struct iocb *iocb, in aio_read() argument
1548 ret = aio_prep_rw(req, iocb); in aio_read()
1557 ret = aio_setup_rw(ITER_DEST, iocb, &iovec, vectored, compat, &iter); in aio_read()
1567 static int aio_write(struct kiocb *req, const struct iocb *iocb, in aio_write() argument
1575 ret = aio_prep_rw(req, iocb); in aio_write()
1585 ret = aio_setup_rw(ITER_SOURCE, iocb, &iovec, vectored, compat, &iter); in aio_write()
1601 struct aio_kiocb *iocb = container_of(work, struct aio_kiocb, fsync.work); in aio_fsync_work() local
1602 const struct cred *old_cred = override_creds(iocb->fsync.creds); in aio_fsync_work()
1604 iocb->ki_res.res = vfs_fsync(iocb->fsync.file, iocb->fsync.datasync); in aio_fsync_work()
1606 put_cred(iocb->fsync.creds); in aio_fsync_work()
1607 iocb_put(iocb); in aio_fsync_work()
1610 static int aio_fsync(struct fsync_iocb *req, const struct iocb *iocb, in aio_fsync() argument
1613 if (unlikely(iocb->aio_buf || iocb->aio_offset || iocb->aio_nbytes || in aio_fsync()
1614 iocb->aio_rw_flags)) in aio_fsync()
1633 struct aio_kiocb *iocb = container_of(req, struct aio_kiocb, poll); in aio_poll_put_work() local
1635 iocb_put(iocb); in aio_poll_put_work()
1686 struct aio_kiocb *iocb = container_of(req, struct aio_kiocb, poll); in aio_poll_complete_work() local
1688 struct kioctx *ctx = iocb->ki_ctx; in aio_poll_complete_work()
1721 list_del_init(&iocb->ki_list); in aio_poll_complete_work()
1722 iocb->ki_res.res = mangle_poll(mask); in aio_poll_complete_work()
1725 iocb_put(iocb); in aio_poll_complete_work()
1729 static int aio_poll_cancel(struct kiocb *iocb) in aio_poll_cancel() argument
1731 struct aio_kiocb *aiocb = container_of(iocb, struct aio_kiocb, rw); in aio_poll_cancel()
1750 struct aio_kiocb *iocb = container_of(req, struct aio_kiocb, poll); in aio_poll_wake() local
1772 spin_trylock_irqsave(&iocb->ki_ctx->ctx_lock, flags)) { in aio_poll_wake()
1773 struct kioctx *ctx = iocb->ki_ctx; in aio_poll_wake()
1776 list_del(&iocb->ki_list); in aio_poll_wake()
1777 iocb->ki_res.res = mangle_poll(mask); in aio_poll_wake()
1778 if (iocb->ki_eventfd && !eventfd_signal_allowed()) { in aio_poll_wake()
1779 iocb = NULL; in aio_poll_wake()
1784 if (iocb) in aio_poll_wake()
1785 iocb_put(iocb); in aio_poll_wake()
1830 struct aio_kiocb *iocb; member
1849 pt->iocb->poll.head = head; in aio_poll_queue_proc()
1850 add_wait_queue(head, &pt->iocb->poll.wait); in aio_poll_queue_proc()
1853 static int aio_poll(struct aio_kiocb *aiocb, const struct iocb *iocb) in aio_poll() argument
1862 if ((u16)iocb->aio_buf != iocb->aio_buf) in aio_poll()
1865 if (iocb->aio_offset || iocb->aio_nbytes || iocb->aio_rw_flags) in aio_poll()
1869 req->events = demangle_poll(iocb->aio_buf) | EPOLLERR | EPOLLHUP; in aio_poll()
1878 apt.iocb = aiocb; in aio_poll()
1928 static int __io_submit_one(struct kioctx *ctx, const struct iocb *iocb, in __io_submit_one() argument
1929 struct iocb __user *user_iocb, struct aio_kiocb *req, in __io_submit_one()
1932 req->ki_filp = fget(iocb->aio_fildes); in __io_submit_one()
1936 if (iocb->aio_flags & IOCB_FLAG_RESFD) { in __io_submit_one()
1944 eventfd = eventfd_ctx_fdget(iocb->aio_resfd); in __io_submit_one()
1957 req->ki_res.data = iocb->aio_data; in __io_submit_one()
1961 switch (iocb->aio_lio_opcode) { in __io_submit_one()
1963 return aio_read(&req->rw, iocb, false, compat); in __io_submit_one()
1965 return aio_write(&req->rw, iocb, false, compat); in __io_submit_one()
1967 return aio_read(&req->rw, iocb, true, compat); in __io_submit_one()
1969 return aio_write(&req->rw, iocb, true, compat); in __io_submit_one()
1971 return aio_fsync(&req->fsync, iocb, false); in __io_submit_one()
1973 return aio_fsync(&req->fsync, iocb, true); in __io_submit_one()
1975 return aio_poll(req, iocb); in __io_submit_one()
1977 pr_debug("invalid aio operation %d\n", iocb->aio_lio_opcode); in __io_submit_one()
1982 static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb, in io_submit_one()
1986 struct iocb iocb; in io_submit_one() local
1989 if (unlikely(copy_from_user(&iocb, user_iocb, sizeof(iocb)))) in io_submit_one()
1993 if (unlikely(iocb.aio_reserved2)) { in io_submit_one()
2000 (iocb.aio_buf != (unsigned long)iocb.aio_buf) || in io_submit_one()
2001 (iocb.aio_nbytes != (size_t)iocb.aio_nbytes) || in io_submit_one()
2002 ((ssize_t)iocb.aio_nbytes < 0) in io_submit_one()
2012 err = __io_submit_one(ctx, &iocb, user_iocb, req, compat); in io_submit_one()
2042 struct iocb __user * __user *, iocbpp) in SYSCALL_DEFINE3()
2064 struct iocb __user *user_iocb; in SYSCALL_DEFINE3()
2135 SYSCALL_DEFINE3(io_cancel, aio_context_t, ctx_id, struct iocb __user *, iocb, in SYSCALL_DEFINE3() argument
2142 u64 obj = (u64)(unsigned long)iocb; in SYSCALL_DEFINE3()
2144 if (unlikely(get_user(key, &iocb->aio_key))) in SYSCALL_DEFINE3()