diff options
| -rw-r--r-- | fs/nfs/nfs4namespace.c | 84 |
1 files changed, 46 insertions, 38 deletions
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c index b112857301f7..956cbbc2ae9f 100644 --- a/fs/nfs/nfs4namespace.c +++ b/fs/nfs/nfs4namespace.c @@ -110,6 +110,48 @@ static inline int valid_ipaddr4(const char *buf) return 0; } +static struct vfsmount *try_location(struct nfs_clone_mount *mountdata, + char *page, char *page2, + const struct nfs4_fs_location *location) +{ + struct vfsmount *mnt = ERR_PTR(-ENOENT); + char *mnt_path; + unsigned int s = 0; + + mnt_path = nfs4_pathname_string(&location->rootpath, page2, PAGE_SIZE); + if (IS_ERR(mnt_path)) + return mnt; + mountdata->mnt_path = mnt_path; + + while (s < location->nservers) { + struct sockaddr_in addr = { + .sin_family = AF_INET, + .sin_port = htons(NFS_PORT), + }; + + if (location->servers[s].len <= 0 || + valid_ipaddr4(location->servers[s].data) < 0) { + s++; + continue; + } + + mountdata->hostname = location->servers[s].data; + addr.sin_addr.s_addr = in_aton(mountdata->hostname), + mountdata->addr = (struct sockaddr *)&addr; + mountdata->addrlen = sizeof(addr); + + snprintf(page, PAGE_SIZE, "%s:%s", + mountdata->hostname, + mountdata->mnt_path); + + mnt = vfs_kern_mount(&nfs4_referral_fs_type, 0, page, mountdata); + if (!IS_ERR(mnt)) + break; + s++; + } + return mnt; +} + /** * nfs_follow_referral - set up mountpoint when hitting a referral on moved error * @mnt_parent - mountpoint of parent directory @@ -128,7 +170,6 @@ static struct vfsmount *nfs_follow_referral(const struct vfsmount *mnt_parent, .authflavor = NFS_SB(mnt_parent->mnt_sb)->client->cl_auth->au_flavor, }; char *page = NULL, *page2 = NULL; - unsigned int s; int loc, error; if (locations == NULL || locations->nlocations <= 0) @@ -153,9 +194,8 @@ static struct vfsmount *nfs_follow_referral(const struct vfsmount *mnt_parent, } loc = 0; - while (loc < locations->nlocations && IS_ERR(mnt)) { + while (loc < locations->nlocations) { const struct nfs4_fs_location *location = &locations->locations[loc]; - char *mnt_path; if (location == NULL || location->nservers <= 0 || location->rootpath.ncomponents == 0) { @@ -163,41 +203,9 @@ static struct vfsmount *nfs_follow_referral(const struct vfsmount *mnt_parent, continue; } - mnt_path = nfs4_pathname_string(&location->rootpath, page2, PAGE_SIZE); - if (IS_ERR(mnt_path)) { - loc++; - continue; - } - mountdata.mnt_path = mnt_path; - - s = 0; - while (s < location->nservers) { - struct sockaddr_in addr = { - .sin_family = AF_INET, - .sin_port = htons(NFS_PORT), - }; - - if (location->servers[s].len <= 0 || - valid_ipaddr4(location->servers[s].data) < 0) { - s++; - continue; - } - - mountdata.hostname = location->servers[s].data; - addr.sin_addr.s_addr = in_aton(mountdata.hostname), - mountdata.addr = (struct sockaddr *)&addr; - mountdata.addrlen = sizeof(addr); - - snprintf(page, PAGE_SIZE, "%s:%s", - mountdata.hostname, - mountdata.mnt_path); - - mnt = vfs_kern_mount(&nfs4_referral_fs_type, 0, page, &mountdata); - if (!IS_ERR(mnt)) { - break; - } - s++; - } + mnt = try_location(&mountdata, page, page2, location); + if (!IS_ERR(mnt)) + break; loc++; } |