diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/fs/nfsclient/nfs_clvnops.c | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/sys/fs/nfsclient/nfs_clvnops.c b/sys/fs/nfsclient/nfs_clvnops.c index ff43dff121a4..80317cfd7a50 100644 --- a/sys/fs/nfsclient/nfs_clvnops.c +++ b/sys/fs/nfsclient/nfs_clvnops.c @@ -3638,7 +3638,7 @@ nfs_copy_file_range(struct vop_copy_file_range_args *ap) struct vattr *vap; struct uio io; struct nfsmount *nmp; - size_t len, len2, copiedlen; + size_t len, len2; int error, inattrflag, outattrflag, ret, ret2; off_t inoff, outoff; bool consecutive, must_commit, tryoutcred; @@ -3731,7 +3731,11 @@ nfs_copy_file_range(struct vop_copy_file_range_args *ap) } else error = 0; } - copiedlen = 0; + + /* + * len will be set to 0 upon a successful Copy RPC. + * As such, this only loops when the Copy RPC needs to be retried. + */ while (len > 0 && error == 0) { inattrflag = outattrflag = 0; len2 = len; @@ -3761,18 +3765,9 @@ nfs_copy_file_range(struct vop_copy_file_range_args *ap) } else error = NFSERR_OFFLOADNOREQS; } - /* - * If the Copy returns a length == 0, it hit the - * EOF on the input file. - */ - if (len2 == 0) { - *ap->a_lenp = copiedlen; - len = 0; - } else { - len -= len2; - copiedlen += len2; - } - if (len == 0 && must_commit && error == 0) + *ap->a_lenp = len2; + len = 0; + if (len2 > 0 && must_commit && error == 0) error = ncl_commit(outvp, outoff, *ap->a_lenp, ap->a_outcred, curthread); if (error == 0 && ret != 0) @@ -3783,6 +3778,9 @@ nfs_copy_file_range(struct vop_copy_file_range_args *ap) /* * Try consecutive == false, which is ok only if all * bytes are copied. + * If only some bytes were copied when consecutive + * is false, there is no way to know which bytes + * still need to be written. */ consecutive = false; error = 0; |