| Date | Fri, 26 May 2006 10:29:34 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH 20/33] readahead: initial method - expected read size |
| |
Wu Fengguang <wfg@mail.ustc.edu.cn> wrote: > > backing_dev_info.ra_expect_bytes is dynamicly updated to be the expected > read pages on start-of-file. It allows the initial readahead to be more > aggressive and hence efficient. > > > +void fastcall readahead_close(struct file *file)
eww, fastcall.
> +{ > + struct inode *inode = file->f_dentry->d_inode; > + struct address_space *mapping = inode->i_mapping; > + struct backing_dev_info *bdi = mapping->backing_dev_info; > + unsigned long pos = file->f_pos;
f_pos is loff_t.
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