On Apr 6, 2005 1:53 AM, Bryan Henderson <[EMAIL PROTECTED]> wrote: > >How do I access/read the content of the files via using inodes > >or blocks that belong to the inode, at sys_link and vfs_link layer? > > This is tricky because many interfaces that one would expect to use an > inode as a file handle use a dentry instead. To read the contents of a > file via the VFS interface, you need a file pointer (struct file), and the > file pointer identifies the file by dentry. So you need to create a dummy > dentry, which you can do with d_alloc_root(), and then create the file > pointer with dentry_open(), then read the file with vfs_read(). > > That's for "via inodes." I don't know what "via blocks" means.
Bryan, Thanks for the description on how to read the contents of a file via the VFS interface. I got to try to see if I can write it in codes, and make sure that I can read the file via the vfs_read() routine. What I meant by via blocks is to gain knowledge of the physical blocks used by the inodes and retrieve the content from it directly, by accessing b_data. Kathy - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
