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authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>2009-04-09 13:57:59 +0900
committerGreg Kroah-Hartman <gregkh@suse.de>2009-04-16 16:17:10 -0700
commit31b07093c44a7a442394d44423e21d783f5523b8 (patch)
tree8569f8450dd2e7560a36a751faeee8d402c031ca /init/main.c
parent1af3557abdef34ee036a6de4cb79e24468544b8d (diff)
proc: mounts_poll() make consistent to mdstat_poll
In recently sysfs_poll discussion, Neil Brown pointed out /proc/mounts also should be fixed. SUSv3 says "Regular files shall always poll TRUE for reading and writing". see http://www.opengroup.org/onlinepubs/009695399/functions/poll.html Then, mounts_poll()'s default should be "POLLIN | POLLRDNORM". it mean always readable. In addition, event trigger should use "POLLERR | POLLPRI" instead POLLERR. it makes consistent to mdstat_poll() and sysfs_poll(). and, select(2) can handle POLLPRI easily. Reported-by: Neil Brown <neilb@suse.de> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Ram Pai <linuxram@us.ibm.com> Cc: Miklos Szeredi <mszeredi@suse.cz> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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