From: "Aneesh Kumar K.V" Subject: [PATCH] ext4: Enable extent format for symlink. Date: Tue, 4 Mar 2008 18:11:23 +0530 Message-ID: <1204634483-16527-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Cc: linux-ext4@vger.kernel.org, "Aneesh Kumar K.V" To: cmm@us.ibm.com, tytso@mit.edu Return-path: Received: from e28smtp01.in.ibm.com ([59.145.155.1]:45093 "EHLO e28smtp01.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1764242AbYCDMl1 (ORCPT ); Tue, 4 Mar 2008 07:41:27 -0500 Received: from d28relay02.in.ibm.com (d28relay02.in.ibm.com [9.184.220.59]) by e28smtp01.in.ibm.com (8.13.1/8.13.1) with ESMTP id m24CfPOr023689 for ; Tue, 4 Mar 2008 18:11:25 +0530 Received: from d28av04.in.ibm.com (d28av04.in.ibm.com [9.184.220.66]) by d28relay02.in.ibm.com (8.13.8/8.13.8/NCO v8.7) with ESMTP id m24CfOFF803006 for ; Tue, 4 Mar 2008 18:11:24 +0530 Received: from d28av04.in.ibm.com (loopback [127.0.0.1]) by d28av04.in.ibm.com (8.13.1/8.13.3) with ESMTP id m24CfNxl027002 for ; Tue, 4 Mar 2008 12:41:24 GMT Sender: linux-ext4-owner@vger.kernel.org List-ID: This patch enable extent format for normal symlink. Extent format enables to refere file system blocks > 32 bits. Enabling extent format for symlink enables to have symlink block beyond 2**32 blocks. We still don't enable extent format for fast symlink. Signed-off-by: Aneesh Kumar K.V --- fs/ext4/ialloc.c | 4 ++-- fs/ext4/namei.c | 2 ++ 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 5027af5..1462189 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -842,8 +842,8 @@ got: goto fail_free_drop; } if (test_opt(sb, EXTENTS)) { - /* set extent flag only for directory and file */ - if (S_ISDIR(mode) || S_ISREG(mode)) { + /* set extent flag only for diretory, file and normal symlink*/ + if (S_ISDIR(mode) || S_ISREG(mode) || S_ISLNK(mode)) { EXT4_I(inode)->i_flags |= EXT4_EXTENTS_FL; ext4_ext_tree_init(handle, inode); err = ext4_update_incompat_feature(handle, sb, diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index da942bc..63c33e0 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -2222,6 +2222,8 @@ retry: goto out_stop; } } else { + /* clear the extent format for fast symlink */ + EXT4_I(inode)->i_flags &= ~EXT4_EXTENTS_FL; inode->i_op = &ext4_fast_symlink_inode_operations; memcpy((char*)&EXT4_I(inode)->i_data,symname,l); inode->i_size = l-1; -- 1.5.4.3.422.g34cd6.dirty