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(parent: 9271d7e) | patch
nfsd: Fix races with check_stateid_generation()
authorTrond Myklebust <trond.myklebust@primarydata.com>
Fri, 3 Nov 2017 12:00:16 +0000 (08:00 -0400)
committerJ. Bruce Fields <bfields@redhat.com>
Mon, 27 Nov 2017 21:45:10 +0000 (16:45 -0500)
commit03da3169c67f67729d8b52cee4e5689b0a3f94c0
tree3298b80d391fa2ac9e082534850ba7d3a925cdc3tree | snapshot
parent9271d7e509c1bfc0b9a418caec29ec8d1ac38270commit | diff
nfsd: Fix races with check_stateid_generation()

The various functions that call check_stateid_generation() in order
to compare a client-supplied stateid with the nfs4_stid state, usually
need to atomically check for closed state. Those that perform the
check after locking the st_mutex using nfsd4_lock_ol_stateid()
should now be OK, but we do want to fix up the others.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
fs/nfsd/nfs4state.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)