[CRIU] [PATCH 2/2 v4] fsnotify: Always provide the path for inotify watchees

[Cyrill Gorcunov]

On Mon, Oct 19, 2015 at 01:37:15PM +0300, Pavel Emelyanov wrote:
> > 
> > As to path check -- we don't care which path we obtain,
> > the inode referenced by the path is the same.
> 
> Where does the guarantee for that come from? I can agree with devices
> being the same, OK (since you look up the mountpoint by device), but
> the inodes match MUST be there, as you open some derived path at 
> different location.

This comes from the handle itself, that's how they work. They're
keeping inode inside their binary form, once opened you've got
a path to the node. Maybe I'm missing something. Mind to type
some pseudocode what you're meaning?

Basically all the above is

	for-each-device-matched
		fd = open-by-handle
		if (fd >= 0)
			path = read-link(/proce/self/$fd)
			if (open(path) >= 0)
				save-path into an image

	Cyrill