Taehee Yoo 61fbf5933d net: bpfilter: restart bpfilter_umh when error occurred ... The bpfilter_umh will be stopped via __stop_umh() when the bpfilter error occurred. The bpfilter_umh() couldn't start again because there is no restart routine. The section of the bpfilter_umh_{start/end} is no longer .init.rodata because these area should be reused in the restart routine. hence the section name is changed to .bpfilter_umh. The bpfilter_ops->start() is restart callback. it will be called when bpfilter_umh is stopped. The stop bit means bpfilter_umh is stopped. this bit is set by both start and stop routine. Before this patch, Test commands: $ iptables -vnL $ kill -9 <pid of bpfilter_umh> $ iptables -vnL [ 480.045136] bpfilter: write fail -32 $ iptables -vnL All iptables commands will fail. After this patch, Test commands: $ iptables -vnL $ kill -9 <pid of bpfilter_umh> $ iptables -vnL $ iptables -vnL Now, all iptables commands will work. Fixes: d2ba09c17a ("net: add skeleton of bpfilter kernel module") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2019-01-11 18:05:41 -08:00
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.gitignore	bpfilter: ignore binary files	2018-06-20 09:07:46 +09:00
bpfilter_kern.c	net: bpfilter: restart bpfilter_umh when error occurred	2019-01-11 18:05:41 -08:00
bpfilter_umh_blob.S	net: bpfilter: restart bpfilter_umh when error occurred	2019-01-11 18:05:41 -08:00
Kconfig	bpfilter: remove trailing newline	2018-07-24 14:10:42 -07:00
main.c	bpfilter: don't pass O_CREAT when opening console for debug	2018-05-24 09:36:49 -04:00
Makefile	kbuild: Rename HOSTLDFLAGS to KBUILD_HOSTLDFLAGS	2018-07-18 01:18:05 +09:00
msgfmt.h