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nfs: pass string length to pr_notice message about readdir loops 

There is no guarantee that the strings in the nfs_cache_array will be
NULL-terminated. In the event that we end up hitting a readdir loop, we
need to ensure that we pass the warning message the length of the
string.

Reported-by: Lachlan McIlroy <lmcilroy@redhat.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Jeff Layton 2014-04-05 08:45:57 -04:00 committed by Trond Myklebust
parent e911b8158e
commit 9581a4ae75
1 changed files with 3 additions and 4 deletions
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7
fs/nfs/dir.c
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@ -313,10 +313,9 @@ int nfs_readdir_search_for_cookie(struct nfs_cache_array *array, nfs_readdir_des
if (printk_ratelimit()) {
pr_notice("NFS: directory %pD2 contains a readdir loop."
"Please contact your server vendor. "
"The file: %s has duplicate cookie %llu\n",
desc->file,
array->array[i].string.name,
*desc->dir_cookie);
"The file: %.*s has duplicate cookie %llu\n",
desc->file, array->array[i].string.len,
array->array[i].string.name, *desc->dir_cookie);
}
status = -ELOOP;
goto out;