Description of problem:

for some reason, yum-updatesd sets gamin to watch some directories, that turn
out to be actual files not directories. This causes gamin to go wild and wake
the cpu and the disk up every 4 seconds. This isn't very nice for power;
especially the disk part.

From strace:
22:04:13.698538 poll([{fd=3, events=POLLIN}, {fd=4, events=0}, {fd=5,
events=POLLIN}, {fd=4, events=POLLIN}, {fd=7, events=POLLIN}], 5, 4000) = 0
22:04:17.698788 gettimeofday({1195538657, 698846}, NULL) = 0
22:04:17.698920 inotify_add_watch(3, "/var/cache/yum/.gpgkeyschecked.yum",
IN_MODIFY|IN_ATTRIB|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR)
= -1 ENOTDIR (Not a directory)
22:04:17.699074 inotify_add_watch(3, "/var/cache/yum/timedhosts.txt",
IN_MODIFY|IN_ATTRIB|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR)
= -1 ENOTDIR (Not a directory)
22:04:17.699213 gettimeofday({1195538657, 699248}, NULL) = 0
22:04:17.699312 poll( <unfinished ...>



notice the ENOTDIR error return because of the IN_ONLYDIR flag..

since yum-updatesd is in the default install it would be really nice if this
could be fixed in an F8 update; right now it takes power for everyone.