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nfsd: safer handling of corrupted c_type

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[ Upstream commit c25bf185e57213b54ea0d632ac04907310993433 ]

This can only happen if there's a bug somewhere, so let's make it a WARN
not a printk.  Also, I think it's safest to ignore the corruption rather
than trying to fix it by removing a cache entry.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
J. Bruce Fields 2020-06-03 11:12:32 -04:00 committed by Greg Kroah-Hartman
parent e585a8b540
commit ca0cac3373
1 changed files with 1 additions and 2 deletions
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3
fs/nfsd/nfscache.c
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@ -469,8 +469,7 @@ nfsd_cache_lookup(struct svc_rqst *rqstp)
rtn = RC_REPLY;
break;
default:
printk(KERN_WARNING "nfsd: bad repcache type %d\n", rp->c_type);
nfsd_reply_cache_free_locked(b, rp, nn);
WARN_ONCE(1, "nfsd: bad repcache type %d\n", rp->c_type);
}
goto out;