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authorFlorian Westphal <fw@strlen.de>2016-08-09 13:16:06 +0300
committerSteffen Klassert <steffen.klassert@secunet.com>2016-08-10 12:23:23 +0300
commitdf7274eb70b7c8488170ebe8757dd94647a8e1e5 (patch)
tree9c750e4e1ef1315fcc8a8dd517591b97b94cf955 /lib/ioremap.c
parent02efdff7e209859c2755ebe93b3bd0e3d40123ab (diff)
downloadlinux-df7274eb70b7c8488170ebe8757dd94647a8e1e5.tar.xz
xfrm: state: delay freeing until rcu grace period has elapsed
The hash table backend memory and the state structs are free'd via kfree/vfree. Once we only rely on rcu during lookups we have to make sure no other cpu is currently accessing this before doing the free. Free operations already happen from worker so we can use synchronize_rcu to wait until concurrent readers are done. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'lib/ioremap.c')
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