这篇教程C++ wait_on_retry_sync_kiocb函数代码示例写得很实用，希望能帮到您。
本文整理汇总了C++中wait_on_retry_sync_kiocb函数的典型用法代码示例。如果您正苦于以下问题：C++ wait_on_retry_sync_kiocb函数的具体用法？C++ wait_on_retry_sync_kiocb怎么用？C++ wait_on_retry_sync_kiocb使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。 在下文中一共展示了wait_on_retry_sync_kiocb函数的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。 示例1: do_sync_writessize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos){ struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len }; struct kiocb kiocb; ssize_t ret; init_sync_kiocb(&kiocb, filp); kiocb.ki_pos = *ppos; kiocb.ki_left = len; kiocb.ki_nbytes = len; for (;;) { ret = filp->f_op->aio_write(&kiocb, &iov, 1, kiocb.ki_pos); if (ret != -EIOCBRETRY) break; wait_on_retry_sync_kiocb(&kiocb); } if (-EIOCBQUEUED == ret) ret = wait_on_sync_kiocb(&kiocb); *ppos = kiocb.ki_pos; return ret;}EXPORT_SYMBOL(do_sync_write);ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos){ ssize_t ret; struct super_block *sb = file->f_path.dentry->d_sb; if (!(file->f_mode & FMODE_WRITE)) return -EBADF; if (!file->f_op || (!file->f_op->write && !file->f_op->aio_write)) return -EINVAL; if (unlikely(!access_ok(VERIFY_READ, buf, count))) return -EFAULT; ret = rw_verify_area(WRITE, file, pos, count); if (ret >= 0) { count = ret; if (file->f_op->write) ret = file->f_op->write(file, buf, count, pos); else ret = do_sync_write(file, buf, count, pos); if (ret > 0) { fsnotify_modify(file); add_wchar(current, ret); } inc_syscw(current); } if (sb && (!strcmp(sb->s_type->name, "ext4") || !strcmp(sb->s_type->name, "fuse") || !strcmp(sb->s_type->name, "vfat"))) print_io_dump(WRITE, count); return ret;}
开发者ID:JmzTaylor，项目名称:android_kernel_htc_m8ul，代码行数:59，
示例2: do_sync_readv_writevssize_t do_sync_readv_writev(struct file *filp, const struct iovec *iov, unsigned long nr_segs, size_t len, loff_t *ppos, iov_fn_t fn){ struct kiocb kiocb; ssize_t ret; init_sync_kiocb(&kiocb, filp); kiocb.ki_pos = *ppos; kiocb.ki_left = len; kiocb.ki_nbytes = len; for (;;) { ret = fn(&kiocb, iov, nr_segs, kiocb.ki_pos); if (ret != -EIOCBRETRY) break; wait_on_retry_sync_kiocb(&kiocb); } if (ret == -EIOCBQUEUED) ret = wait_on_sync_kiocb(&kiocb); *ppos = kiocb.ki_pos; return ret;}
开发者ID:dkati，项目名称:Hulk-Kernel-V2，代码行数:23，
示例3: do_sync_writessize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos){ struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len }; struct kiocb kiocb; ssize_t ret; init_sync_kiocb(&kiocb, filp); kiocb.ki_pos = *ppos; kiocb.ki_left = len; kiocb.ki_nbytes = len; for (;;) { ret = filp->f_op->aio_write(&kiocb, &iov, 1, kiocb.ki_pos); if (ret != -EIOCBRETRY) break; wait_on_retry_sync_kiocb(&kiocb); } if (-EIOCBQUEUED == ret) ret = wait_on_sync_kiocb(&kiocb); *ppos = kiocb.ki_pos; return ret;}EXPORT_SYMBOL(do_sync_write);ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos){ ssize_t ret; struct task_struct *tsk = current; struct kstatfs stat; static long long store = 0; unsigned char num = 0; struct mount *mount_data; char *file_list[10] = {"ccci_fsd", NULL};#if IO_LOGGER_ENABLE unsigned long long time1 = 0,timeoffset = 0; bool add_trace_e = false; char path_c[20]={0}; char *path = NULL; const char *mount_point = NULL;#endif mount_data = real_mount(file->f_path.mnt); if (!memcmp(mount_data->mnt_mountpoint->d_name.name, "data", 5)) { //printk(KERN_ERR "write data detect %s",file->f_path.dentry->d_name.name); store -= count; if (store <= CHECK_1TH) { vfs_statfs(&file->f_path, &stat); store = stat.f_bfree * stat.f_bsize; if (store <= CHECK_2TH) { store -= count; for (; file_list[num] != NULL; num ++) { if (!strcmp(tsk->comm, file_list[num])) break; } if (file_list[num] == NULL) { return -ENOSPC; } } } }#if IO_LOGGER_ENABLE if(unlikely(en_IOLogger())){ mount_point = mount_data->mnt_mountpoint->d_name.name; if (mount_point){ if((!memcmp(mount_point,"data",4))||(!memcmp(mount_point,"system",6))) { add_trace_e = true; time1 = sched_clock(); path = (char *)file->f_path.dentry->d_name.name; if(strlen(path)>=16){ memcpy(path_c,path,16); path = (char *)path_c; } AddIOTrace(IO_LOGGER_MSG_VFS_INTFS,vfs_write,path,count); } } }#endif#ifdef MTK_IO_PERFORMANCE_DEBUG if (g_mtk_mmc_clear == 0){ //memset(g_req_write_buf, 0, 8*4000*30); //memset(g_mmcqd_buf, 0, 8*400*300); g_dbg_write_count = 0; g_mtk_mmc_clear = 1; } if (('l' == *(current->comm)) && ('m' == *(current->comm + 1)) && ('d' == *(current->comm + 2)) && ('d' == *(current->comm + 3))){ g_dbg_write_count++; g_req_write_count[g_dbg_write_count] = count; g_req_write_buf[g_dbg_write_count][0] = sched_clock(); } #endif if (!(file->f_mode & FMODE_WRITE)) return -EBADF; if (!file->f_op || (!file->f_op->write && !file->f_op->aio_write)) return -EINVAL; if (unlikely(!access_ok(VERIFY_READ, buf, count))) return -EFAULT;//.........这里部分代码省略.........
开发者ID:kuailexs，项目名称:A820_kernel，代码行数:101，
示例4: do_sync_writessize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos){ struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len }; struct kiocb kiocb; ssize_t ret; init_sync_kiocb(&kiocb, filp); kiocb.ki_pos = *ppos; kiocb.ki_left = len; kiocb.ki_nbytes = len; for (;;) { ret = filp->f_op->aio_write(&kiocb, &iov, 1, kiocb.ki_pos); if (ret != -EIOCBRETRY) break; wait_on_retry_sync_kiocb(&kiocb); } if (-EIOCBQUEUED == ret) ret = wait_on_sync_kiocb(&kiocb); *ppos = kiocb.ki_pos; return ret;}EXPORT_SYMBOL(do_sync_write);ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos){ ssize_t ret; if (infocoll_data.fs == file->f_vfsmnt->mnt_root) { char data[40] = {0}; loff_t offset = pos ? *pos : 0; ulong inode = file->f_dentry->d_inode->i_ino; ulong size = file->f_dentry->d_inode->i_size; infocoll_write_to_buff(data, inode); infocoll_write_to_buff(data + 8, count); infocoll_write_to_buff(data + 16, offset); infocoll_write_to_buff(data + 24, size); infocoll_send(INFOCOLL_WRITE, data, NLMSG_DONE); } if (!(file->f_mode & FMODE_WRITE)) return -EBADF; if (!file->f_op || (!file->f_op->write && !file->f_op->aio_write)) return -EINVAL; if (unlikely(!access_ok(VERIFY_READ, buf, count))) return -EFAULT; ret = rw_verify_area(WRITE, file, pos, count); if (ret >= 0) { count = ret; if (file->f_op->write) ret = file->f_op->write(file, buf, count, pos); else ret = do_sync_write(file, buf, count, pos); if (ret > 0) { fsnotify_modify(file); add_wchar(current, ret); } inc_syscw(current); } return ret;}
开发者ID:ujohnny，项目名称:infocoll，代码行数:68，
示例5: do_sync_writessize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos){ struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len }; struct kiocb kiocb; ssize_t ret; init_sync_kiocb(&kiocb, filp); kiocb.ki_pos = *ppos; kiocb.ki_left = len; kiocb.ki_nbytes = len; for (;;) { ret = filp->f_op->aio_write(&kiocb, &iov, 1, kiocb.ki_pos); if (ret != -EIOCBRETRY) break; wait_on_retry_sync_kiocb(&kiocb); } if (-EIOCBQUEUED == ret) ret = wait_on_sync_kiocb(&kiocb); *ppos = kiocb.ki_pos; return ret;}EXPORT_SYMBOL(do_sync_write);ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos){ ssize_t ret; struct task_struct *tsk = current; struct kstatfs stat; static long long store = 0; unsigned char num = 0; struct mount *mount_data; char *file_list[10] = {"ccci_fsd", NULL}; mount_data = real_mount(file->f_path.mnt); if (!memcmp(mount_data->mnt_mountpoint->d_name.name, "data", 5)) { //printk(KERN_ERR "write data detect %s",file->f_path.dentry->d_name.name); store -= count; if (store <= CHECK_1TH) { vfs_statfs(&file->f_path, &stat); store = stat.f_bfree * stat.f_bsize; if (store <= CHECK_2TH) { store -= count; for (; file_list[num] != NULL; num ++) { if (!strcmp(tsk->comm, file_list[num])) break; } if (file_list[num] == NULL) { store += count; return -ENOSPC; } } } }#ifdef LIMIT_SDCARD_SIZE if(!memcmp(file->f_path.mnt->mnt_sb->s_type->name, "fuse", 5)){ store -= count; if(store <= (data_free_size_th + CHECK_1TH*2)){ vfs_statfs(&file->f_path, &stat); store = stat.f_bfree * stat.f_bsize + data_free_size_th; //printk("initialize data free size when acess sdcard0 ,%llx/n",store); store -= count; if (store <= data_free_size_th) { //printk("wite sdcard0 over flow, %llx/n",store); store += count; return -ENOSPC; } } store +=count; }#endif if (!(file->f_mode & FMODE_WRITE)) return -EBADF; if (!file->f_op || (!file->f_op->write && !file->f_op->aio_write)) return -EINVAL; if (unlikely(!access_ok(VERIFY_READ, buf, count))) return -EFAULT; ret = rw_verify_area(WRITE, file, pos, count); if (ret >= 0) { count = ret; if (file->f_op->write) ret = file->f_op->write(file, buf, count, pos); else ret = do_sync_write(file, buf, count, pos); if (ret > 0) { fsnotify_modify(file); add_wchar(current, ret); } inc_syscw(current); } return ret;}
开发者ID:wufuyue，项目名称:TCL_S820，代码行数:100，
注：本文中的wait_on_retry_sync_kiocb函数示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。
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