Linux/unix在内核中设有缓冲区、高速缓冲或页面高速缓冲,大多数磁盘I/O(block device)都通过缓冲进行,当将数据写入文件时,内核通常先将该数据复制到其中一个缓冲区中,如果该缓冲区尚未写满,则并不将其排入输出队列,而是等待其写满 或者当内核需要重用该缓冲区以便存放其他磁盘块数据时,再将该缓冲排入输出队列,然后...
问在文件读/写操作后调用fsync返回-1EN Python 是一门易于学习、功能强大的编程语言。它提供了...
* Move all data to a permanent storage device. This code * simulates the fsync syscall. * simulates the fsync and fdatasync syscalls. */ static int aio_fsync_vnode(struct thread *td, struct vnode *vp) aio_fsync_vnode(struct thread *td, struct vnode *vp, int op) { struct mount *mp...
action: Determine if the device needs to be replaced, and clear the errors using 'zpool clear' or replace the device with 'zpool replace'. see: http://zfsonlinux.org/msg/ZFS-8000-9P scan: scrub repaired 0B in 22h59m with 0 errors on Mon Apr 23 05:46:35 2018 config: NAME STATE...