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NFSD: Refactor nfsd4_do_copy() 

Refactor: Now that nfsd4_do_copy() no longer calls the cleanup
helpers, plumb the use of struct file pointers all the way down to
_nfsd_copy_file_range().

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever 2022-07-27 14:40:59 -04:00
parent 478ed7b10d
commit 3b7bf5933c
1 changed files with 14 additions and 8 deletions
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22
fs/nfsd/nfs4proc.c
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@ -1670,10 +1670,10 @@ static void nfsd4_init_copy_res(struct nfsd4_copy *copy, bool sync)
gen_boot_verifier(&copy->cp_res.wr_verifier, copy->cp_clp->net);
}
static ssize_t _nfsd_copy_file_range(struct nfsd4_copy *copy)
static ssize_t _nfsd_copy_file_range(struct nfsd4_copy *copy,
struct file *dst,
struct file *src)
{
struct file *dst = copy->nf_dst->nf_file;
struct file *src = copy->nf_src->nf_file;
errseq_t since;
ssize_t bytes_copied = 0;
u64 bytes_total = copy->cp_count;
@ -1709,12 +1709,15 @@ static ssize_t _nfsd_copy_file_range(struct nfsd4_copy *copy)
return bytes_copied;
}
static __be32 nfsd4_do_copy(struct nfsd4_copy *copy, bool sync)
static __be32 nfsd4_do_copy(struct nfsd4_copy *copy,
struct file *src, struct file *dst,
bool sync)
{
__be32 status;
ssize_t bytes;
bytes = _nfsd_copy_file_range(copy);
bytes = _nfsd_copy_file_range(copy, dst, src);
/* for async copy, we ignore the error, client can always retry
* to get the error
*/
@ -1779,11 +1782,13 @@ static int nfsd4_do_async_copy(void *data)
nfsd4_interssc_disconnect(copy->ss_mnt);
goto do_callback;
}
copy->nfserr = nfsd4_do_copy(copy, 0);
copy->nfserr = nfsd4_do_copy(copy, copy->nf_src->nf_file,
copy->nf_dst->nf_file, false);
nfsd4_cleanup_inter_ssc(copy->ss_mnt, copy->nf_src->nf_file,
copy->nf_dst);
} else {
copy->nfserr = nfsd4_do_copy(copy, 0);
copy->nfserr = nfsd4_do_copy(copy, copy->nf_src->nf_file,
copy->nf_dst->nf_file, false);
nfsd4_cleanup_intra_ssc(copy->nf_src, copy->nf_dst);
}
@ -1861,7 +1866,8 @@ nfsd4_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
wake_up_process(async_copy->copy_task);
status = nfs_ok;
} else {
status = nfsd4_do_copy(copy, 1);
status = nfsd4_do_copy(copy, copy->nf_src->nf_file,
copy->nf_dst->nf_file, true);
nfsd4_cleanup_intra_ssc(copy->nf_src, copy->nf_dst);
}
out: