tree c9c112a0aa290895a416b5bfc3f58aa328bc74e8
parent cd94c8bbef8d4b796a7ed4c551355a334604fd36
author Eric Paris <eparis@redhat.com> 1250473915 -0400
committer Linus Torvalds <torvalds@linux-foundation.org> 1250541457 -0700

inotify: start watch descriptor count at 1

The inotify_add_watch man page specifies that inotify_add_watch() will
return a non-negative integer.  However, historically the inotify
watches started at 1, not at 0.

Turns out that the inotifywait program provided by the inotify-tools
package doesn't properly handle a 0 watch descriptor.  In 7e790dd5 we
changed from starting at 1 to starting at 0.  This patch starts at 1,
just like in previous kernels, but also just like in previous kernels
it's possible for it to wrap back to 0.  This preserves the kernel
functionality exactly like it was before the patch (neither method broke
the spec)

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>