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fusefs: improve warnings about buggy FUSE servers

Description

fusefs: improve warnings about buggy FUSE servers

The fusefs driver will print warning messages about FUSE servers that
commit protocol violations. Previously it would print those warnings on
every violation, but that could spam the console. Now it will print
each warning no more than once per lifetime of the mount. There is also
now a dtrace probe for each violation.

MFC after: 2 weeks
Sponsored by: Axcient
Reviewed by: emaste, pfg
Differential Revision: https://reviews.freebsd.org/D30780

Details

Provenance
asomersAuthored on Jun 15 2021, 8:24 PM
Reviewer
emaste
Differential Revision
D30780: fusefs: improve warnings about buggy FUSE servers
Parents
R10:6e26b4f8f4f6: cxgbe tom: Remove orphaned function max_imm_tls_space().
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