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nfsroot: set tcp as the default transport protocol 

UDP is disabled by default in commit b24ee6c64c ("NFS: allow
deprecation of NFS UDP protocol"), but the default mount options
is still udp, change it to tcp to avoid the "Unsupported transport
protocol udp" error if no protocol is specified when mount nfs.

Fixes: b24ee6c64c ("NFS: allow deprecation of NFS UDP protocol")
Signed-off-by: Liwei Song <liwei.song@windriver.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Liwei Song 2020-03-25 11:50:13 +08:00 committed by Trond Myklebust
parent 8605cf0e85
commit 89c8023fd4
1 changed files with 1 additions and 1 deletions
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2
fs/nfs/nfsroot.c
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@ -88,7 +88,7 @@
#define NFS_ROOT "/tftpboot/%s"
/* Default NFSROOT mount options. */
#define NFS_DEF_OPTIONS "vers=2,udp,rsize=4096,wsize=4096"
#define NFS_DEF_OPTIONS "vers=2,tcp,rsize=4096,wsize=4096"
/* Parameters passed from the kernel command line */
static char nfs_root_parms[NFS_MAXPATHLEN + 1] __initdata = "";