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authorLi RongQing <roy.qing.li@gmail.com>2015-09-24 05:19:09 +0300
committerTrond Myklebust <trond.myklebust@primarydata.com>2015-10-21 23:49:19 +0300
commitc646619355d196293daffdbb4fd877c8f5048e49 (patch)
tree48a5e32f2761e5d46d0ff2f8082a63f165c951c4 /fs/nfs/nfsroot.c
parentc6fa8e6de3dc420cba092bf155b2ed25bcd537f7 (diff)
downloadlinux-c646619355d196293daffdbb4fd877c8f5048e49.tar.xz
nfsroot: make nfsroot to accept the 1024 bytes long directory name
although NFS_MAXPATHLEN is defined to 1024, nfs client hopes to accept a 1024 byte path, but nfs_root_parms is limited to 256, and the nfs path will truncated when a user inputs nfs path from kernel cmdline enlarge nfs_root_parms to 1024, to make it accept the 1024 bytes long directory name, since nfs_root_parms is defined as _initdata, it will be released after system bootup Signed-off-by: Li RongQing <roy.qing.li@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/nfsroot.c')
-rw-r--r--fs/nfs/nfsroot.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfs/nfsroot.c b/fs/nfs/nfsroot.c
index 9bc9f04fb7f6..89a15dbe5efc 100644
--- a/fs/nfs/nfsroot.c
+++ b/fs/nfs/nfsroot.c
@@ -90,7 +90,7 @@
#define NFS_DEF_OPTIONS "vers=2,udp,rsize=4096,wsize=4096"
/* Parameters passed from the kernel command line */
-static char nfs_root_parms[256] __initdata = "";
+static char nfs_root_parms[NFS_MAXPATHLEN + 1] __initdata = "";
/* Text-based mount options passed to super.c */
static char nfs_root_options[256] __initdata = NFS_DEF_OPTIONS;