Jan Kara 05f0e38724 fanotify: Release SRCU lock when waiting for userspace response ... When userspace task processing fanotify permission events screws up and does not respond, fsnotify_mark_srcu SRCU is held indefinitely which causes further hangs in the whole notification subsystem. Although we cannot easily solve the problem of operations blocked waiting for response from userspace, we can at least somewhat localize the damage by dropping SRCU lock before waiting for userspace response and reacquiring it when userspace responds. Reviewed-by: Miklos Szeredi <mszeredi@redhat.com> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>		2017-04-10 17:37:36 +02:00
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dnotify	fsnotify: Pass fsnotify_iter_info into handle_event handler	2017-04-10 17:37:36 +02:00
fanotify	fanotify: Release SRCU lock when waiting for userspace response	2017-04-10 17:37:36 +02:00
inotify	fsnotify: Pass fsnotify_iter_info into handle_event handler	2017-04-10 17:37:36 +02:00
fdinfo.c	fsnotify: Move object pointer to fsnotify_mark_connector	2017-04-10 17:37:35 +02:00
fdinfo.h	fs: Convert show_fdinfo functions to void	2014-11-05 14:13:23 -05:00
fsnotify.c	fsnotify: Pass fsnotify_iter_info into handle_event handler	2017-04-10 17:37:36 +02:00
fsnotify.h	fsnotify: Provide framework for dropping SRCU lock in ->handle_event	2017-04-10 17:37:36 +02:00
group.c	fsnotify: Provide framework for dropping SRCU lock in ->handle_event	2017-04-10 17:37:36 +02:00
inode_mark.c	fsnotify: Free fsnotify_mark_connector when there is no mark attached	2017-04-10 17:37:35 +02:00
Kconfig	rcu: Make SRCU optional by using CONFIG_SRCU	2015-01-06 11:04:29 -08:00
Makefile	fs, notify: add procfs fdinfo helper	2012-12-17 17:15:28 -08:00
mark.c	fsnotify: Provide framework for dropping SRCU lock in ->handle_event	2017-04-10 17:37:36 +02:00
notification.c	fsnotify: clean up spinlock assertions	2016-10-07 18:46:26 -07:00
vfsmount_mark.c	fsnotify: Free fsnotify_mark_connector when there is no mark attached	2017-04-10 17:37:35 +02:00