On Mon, 7 Aug 2006 16:23:55 -0400
Chris Mason <mason@xxxxxxxx> wrote:
> Fat is commonly used on removable media. Mounting with -o flush tells the
> FS to write things to disk as quickly as possible. It is like -o sync, but
> much faster (and not as safe).
>
OK, so it's now fat-specific. That makes it easier, and still useful.
> @@ -112,6 +113,16 @@ int fat_generic_ioctl(struct inode *inod
> }
> }
>
> +static int fat_file_release(struct inode *inode, struct file *filp)
> +{
> + if ((filp->f_mode & FMODE_WRITE) &&
> + MSDOS_SB(inode->i_sb)->options.flush) {
> + fat_flush_inodes(inode->i_sb, inode, NULL);
> + blk_congestion_wait(WRITE, HZ/10);
> + }
> + return 0;
> +}
What's the blk_congestion_wait() for?
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