mirror of https://gitee.com/openkylin/linux.git
nfs: replace while loop by for loops in nfs_follow_referral
Whoever wrote this had a bizarre allergy to for loops. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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@ -116,24 +116,22 @@ static struct vfsmount *try_location(struct nfs_clone_mount *mountdata,
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{
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struct vfsmount *mnt = ERR_PTR(-ENOENT);
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char *mnt_path;
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unsigned int s = 0;
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unsigned int s;
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mnt_path = nfs4_pathname_string(&location->rootpath, page2, PAGE_SIZE);
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if (IS_ERR(mnt_path))
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return mnt;
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mountdata->mnt_path = mnt_path;
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while (s < location->nservers) {
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for (s = 0; s < location->nservers; s++) {
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struct sockaddr_in addr = {
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.sin_family = AF_INET,
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.sin_port = htons(NFS_PORT),
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};
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if (location->servers[s].len <= 0 ||
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valid_ipaddr4(location->servers[s].data) < 0) {
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s++;
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valid_ipaddr4(location->servers[s].data) < 0)
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continue;
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}
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mountdata->hostname = location->servers[s].data;
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addr.sin_addr.s_addr = in_aton(mountdata->hostname),
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@ -147,7 +145,6 @@ static struct vfsmount *try_location(struct nfs_clone_mount *mountdata,
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mnt = vfs_kern_mount(&nfs4_referral_fs_type, 0, page, mountdata);
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if (!IS_ERR(mnt))
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break;
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s++;
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}
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return mnt;
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}
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@ -193,20 +190,16 @@ static struct vfsmount *nfs_follow_referral(const struct vfsmount *mnt_parent,
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goto out;
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}
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loc = 0;
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while (loc < locations->nlocations) {
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for (loc = 0; loc < locations->nlocations; loc++) {
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const struct nfs4_fs_location *location = &locations->locations[loc];
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if (location == NULL || location->nservers <= 0 ||
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location->rootpath.ncomponents == 0) {
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loc++;
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location->rootpath.ncomponents == 0)
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continue;
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}
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mnt = try_location(&mountdata, page, page2, location);
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if (!IS_ERR(mnt))
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break;
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loc++;
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}
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out:
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