From: Frank Filz <ffilzlnx@us.ibm.com>
Date: Tue, 17 Oct 2006 17:24:42 +0000 (-0700)
Subject: NFS: Remove use of the Big Kernel Lock around nfs calls to readlink
X-Git-Tag: archive/raspbian/4.9.13-1+rpi1~10^2~39374^2~47^2~87
X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https:/%22bookmarks:///%22http:/www.example.com/cgi/%22https:/%22bookmarks:/?a=commitdiff_plain;h=eb5f8545ffff98a11c6656d4d2106341ab69c57d;p=linux-4.9.git

NFS: Remove use of the Big Kernel Lock around nfs calls to readlink

Remove use of the Big Kernel Lock around indirect calls to
nfs3_proc_readlink and nfs4_proc_readlink, both of which
basically call rpc_call_sync.

Signed-off-by: Frank Filz <ffilz@us.ibm.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---

diff --git a/fs/nfs/symlink.c b/fs/nfs/symlink.c
index 600bbe630abd..6c686112cc03 100644
--- a/fs/nfs/symlink.c
+++ b/fs/nfs/symlink.c
@@ -33,9 +33,7 @@ static int nfs_symlink_filler(struct inode *inode, struct page *page)
 {
 	int error;
 
-	lock_kernel();
 	error = NFS_PROTO(inode)->readlink(inode, page, 0, PAGE_SIZE);
-	unlock_kernel();
 	if (error < 0)
 		goto error;
 	SetPageUptodate(page);