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NFSD: Clean up nfsd_vfs_write()

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[ Upstream commit 33388b3aefefd4d83764dab8038cb54068161a44 ]

The RWF_SYNC and !RWF_SYNC arms are now exactly alike except that
the RWF_SYNC arm resets the boot verifier twice in a row. Fix that
redundancy and de-duplicate the code.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chuck Lever 2021-12-28 14:19:41 -05:00 committed by Ksawlii
parent f9c454e287
commit 15dea95570
1 changed files with 5 additions and 16 deletions
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21
fs/nfsd/vfs.c
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@ -1022,22 +1022,11 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct nfsd_file *nf,
iov_iter_kvec(&iter, WRITE, vec, vlen, *cnt);
since = READ_ONCE(file->f_wb_err);
if (flags & RWF_SYNC) {
if (verf)
nfsd_copy_boot_verifier(verf,
net_generic(SVC_NET(rqstp),
nfsd_net_id));
host_err = vfs_iter_write(file, &iter, &pos, flags);
if (host_err < 0)
nfsd_reset_boot_verifier(net_generic(SVC_NET(rqstp),
nfsd_net_id));
} else {
if (verf)
nfsd_copy_boot_verifier(verf,
net_generic(SVC_NET(rqstp),
nfsd_net_id));
host_err = vfs_iter_write(file, &iter, &pos, flags);
}
if (verf)
nfsd_copy_boot_verifier(verf,
net_generic(SVC_NET(rqstp),
nfsd_net_id));
host_err = vfs_iter_write(file, &iter, &pos, flags);
if (host_err < 0) {
nfsd_reset_boot_verifier(net_generic(SVC_NET(rqstp),
nfsd_net_id));