You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

Eric W. Biederman 077130c0cf [NET]: Fix race when opening a proc file while a network namespace is exiting. ... The problem: proc_net files remember which network namespace the are against but do not remember hold a reference count (as that would pin the network namespace). So we currently have a small window where the reference count on a network namespace may be incremented when opening a /proc file when it has already gone to zero. To fix this introduce maybe_get_net and get_proc_net. maybe_get_net increments the network namespace reference count only if it is greater then zero, ensuring we don't increment a reference count after it has gone to zero. get_proc_net handles all of the magic to go from a proc inode to the network namespace instance and call maybe_get_net on it. PROC_NET the old accessor is removed so that we don't get confused and use the wrong helper function. Then I fix up the callers to use get_proc_net and handle the case case where get_proc_net returns NULL. In that case I return -ENXIO because effectively the network namespace has already gone away so the files we are trying to access don't exist anymore. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Paul E. McKenney <paulmck@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>		18 years ago
..
Kconfig	[WIRELESS]: Remove wext over netlink.	18 years ago
Makefile	[PATCH] cfg80211: Radiotap parser	18 years ago
core.c	[PATCH] cfg80211: fix initialisation if built-in	18 years ago
core.h	[WIRELESS] cfg80211: New wireless config infrastructure.	18 years ago
radiotap.c	[WIRELESS] radiotap parser: accept all other fields	18 years ago
sysfs.c	[PATCH] net/wireless/sysfs.c: Shut up build warning	18 years ago
sysfs.h	[WIRELESS] cfg80211: New wireless config infrastructure.	18 years ago
wext.c	[NET]: Fix race when opening a proc file while a network namespace is exiting.	18 years ago