5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chuck Lever chuck.lever@oracle.com
[ Upstream commit ad1e46c9b07b13659635ee5405f83ad0df143116 ]
Instead of manufacturing a phony struct nfsd_file, pass the struct file returned by nfs42_ssc_open() directly to nfsd4_do_copy().
[ cel: adjusted to apply to v5.15.y ] Signed-off-by: Chuck Lever chuck.lever@oracle.com --- fs/nfsd/nfs4proc.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-)
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 24c7d5e6c8c33..f63c3c4c10ca7 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -1755,29 +1755,31 @@ static void cleanup_async_copy(struct nfsd4_copy *copy) nfs4_put_copy(copy); }
+/** + * nfsd4_do_async_copy - kthread function for background server-side COPY + * @data: arguments for COPY operation + * + * Return values: + * %0: Copy operation is done. + */ static int nfsd4_do_async_copy(void *data) { struct nfsd4_copy *copy = (struct nfsd4_copy *)data; struct nfsd4_copy *cb_copy;
if (nfsd4_ssc_is_inter(copy)) { - copy->nf_src = kzalloc(sizeof(struct nfsd_file), GFP_KERNEL); - if (!copy->nf_src) { - copy->nfserr = nfserr_serverfault; - /* ss_mnt will be unmounted by the laundromat */ - goto do_callback; - } - copy->nf_src->nf_file = nfs42_ssc_open(copy->ss_mnt, ©->c_fh, - ©->stateid); - if (IS_ERR(copy->nf_src->nf_file)) { + struct file *filp; + + filp = nfs42_ssc_open(copy->ss_mnt, ©->c_fh, + ©->stateid); + if (IS_ERR(filp)) { copy->nfserr = nfserr_offload_denied; /* ss_mnt will be unmounted by the laundromat */ goto do_callback; } - copy->nfserr = nfsd4_do_copy(copy, copy->nf_src->nf_file, + copy->nfserr = nfsd4_do_copy(copy, filp, copy->nf_dst->nf_file, false); - nfsd4_cleanup_inter_ssc(copy->ss_mnt, copy->nf_src->nf_file, - copy->nf_dst); + nfsd4_cleanup_inter_ssc(copy->ss_mnt, filp, copy->nf_dst); } else { copy->nfserr = nfsd4_do_copy(copy, copy->nf_src->nf_file, copy->nf_dst->nf_file, false); @@ -1799,8 +1801,6 @@ static int nfsd4_do_async_copy(void *data) ©->fh, copy->cp_count, copy->nfserr); nfsd4_run_cb(&cb_copy->cp_cb); out: - if (nfsd4_ssc_is_inter(copy)) - kfree(copy->nf_src); cleanup_async_copy(copy); return 0; }