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NFSD: De-duplicate net_generic(SVC_NET(rqstp), nfsd_net_id)

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Since this pointer is used repeatedly, move it to a stack variable.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever 2021-12-28 12:41:32 -05:00
parent 33388b3aef
commit fb7622c2db
1 changed files with 4 additions and 7 deletions
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11
fs/nfsd/vfs.c
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@ -954,6 +954,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct nfsd_file *nf,
unsigned long *cnt, int stable,
__be32 *verf)
{
struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
struct file *file = nf->nf_file;
struct super_block *sb = file_inode(file)->i_sb;
struct svc_export *exp;
@ -998,13 +999,10 @@ 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 (verf)
nfsd_copy_boot_verifier(verf,
net_generic(SVC_NET(rqstp),
nfsd_net_id));
nfsd_copy_boot_verifier(verf, nn);
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));
nfsd_reset_boot_verifier(nn);
goto out_nfserr;
}
*cnt = host_err;
@ -1017,8 +1015,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct nfsd_file *nf,
if (stable && use_wgather) {
host_err = wait_for_concurrent_writes(file);
if (host_err < 0)
nfsd_reset_boot_verifier(net_generic(SVC_NET(rqstp),
nfsd_net_id));
nfsd_reset_boot_verifier(nn);
}
out_nfserr: