On Mon, Jan 08, 2001 at 12:58:20PM -0500, Alexander Viro wrote:
> It's a hell of a pain wrt locking. You need to lock the parent, but it can
This is a no-brainer and bad implementation, but shows it's obviously right
wrt locking. (pseudocode, I ignored the uaccess details and all the other not
relevant things)
sys_rmdir(path)
{
char buf[PAGE_SIZE]
err = sys_getcwd(buf, PAGE_SIZE)
if (err)
goto out
if (!memcmp(path, ".", 2))
path = buf
err = 2_4_0_sys_rmdir(path)
out:
return err
}
Optimizing things just a little more as _worse_ the overhead of supporting
`rmdir .` can be reduced to a memcmp(name, ".") plus and out of line jump and I
don't see a performance problem with that.
Could you enlight me on where's the locking pain?
Andrea
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This archive was generated by hypermail 2b29 : Mon Jan 15 2001 - 21:00:19 EST