nfsd: add fh_want_write() for early-verified SETATTR in nfsd_proc_setattr()

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The BOTH_TIME_SET branch calls fh_verify() early so setattr_prepare()
can inspect the dentry. This causes nfsd_setattr() to skip
fh_want_write(), so notify_change() runs without a mount write
reference.

Add the missing fh_want_write() call after the early fh_verify().

Fixes: cc265089ce ("nfsd: Disable NFSv2 timestamp workaround for NFSv3+")
Cc: stable@vger.kernel.org
Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Link: https://patch.msgid.link/20260611-nfsd-testing-v2-11-5b90e276f2d9@kernel.org
Signed-off-by: Chuck Lever <cel@kernel.org>

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Jeff Layton 2026-06-11 16:00:54 -04:00 • committed by Chuck Lever

parent 246a90a510

commit 4e475be769

1 changed files with 7 additions and 0 deletions

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fs/nfsd/nfsproc.c

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