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NFSD: nfsd_file_put() can sleep

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[ Upstream commit 08af54b3e5729bc1d56ad3190af811301bdc37a1 ]

Now that there are no more callers of nfsd_file_put() that might
hold a spin lock, ensure the lockdep infrastructure can catch
newly introduced calls to nfsd_file_put() made while a spinlock
is held.

Link: https://lore.kernel.org/linux-nfs/ece7fd1d-5fb3-5155-54ba-347cfc19bd9a@oracle.com/T/#mf1855552570cf9a9c80d1e49d91438cd9085aada
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chuck Lever 2022-05-11 13:02:21 -04:00 • committed by Ksawlii
parent bb58cbbf0a
commit b09116ac30
1 changed files with 2 additions and 0 deletions
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2
fs/nfsd/filecache.c
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@ -302,6 +302,8 @@ nfsd_file_put_noref(struct nfsd_file *nf)
void void
nfsd_file_put(struct nfsd_file *nf) nfsd_file_put(struct nfsd_file *nf)
{ {
might_sleep();
set_bit(NFSD_FILE_REFERENCED, &nf->nf_flags); set_bit(NFSD_FILE_REFERENCED, &nf->nf_flags);
if (test_bit(NFSD_FILE_HASHED, &nf->nf_flags) == 0) { if (test_bit(NFSD_FILE_HASHED, &nf->nf_flags) == 0) {
nfsd_file_flush(nf); nfsd_file_flush(nf);