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authorMateusz Guzik <mjg@FreeBSD.org>2019-08-21 23:24:40 +0000
committerMateusz Guzik <mjg@FreeBSD.org>2019-08-21 23:24:40 +0000
commit81f666e79dfde97ef26a61863b08c9e59eeb32c1 (patch)
treec4d2b2b089a4aa5718a3f8199de892de81f244f2 /sys/sys/lockstat.h
parent6ad06a5e50a1e1ea91e25346e15656d2259b3ed8 (diff)
downloadsrc-81f666e79dfde97ef26a61863b08c9e59eeb32c1.tar.gz
src-81f666e79dfde97ef26a61863b08c9e59eeb32c1.zip
nullfs: lock the vnode with LK_SHARED in null_vptocnp
null_nodeget which follows almost always finds the target vnode in the hash, avoiding insmntque1 altogether. Should it be needed, it already checks if the lock needs to be upgraded. Reviewed by: kib Tested by: pho Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D20244
Notes
Notes: svn path=/head/; revision=351360
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