From: Anatol Pomozov Subject: [PATCH 2/2] Extract 'ext4_sb_info' variable Date: Mon, 17 Sep 2012 10:47:17 -0700 Message-ID: <1347904037-24229-2-git-send-email-anatol.pomozov@gmail.com> References: <1347904037-24229-1-git-send-email-anatol.pomozov@gmail.com> Cc: dmonakhov@openvz.org, Anatol Pomozov To: tytso@mit.edu, linux-ext4@vger.kernel.org Return-path: Received: from mail-lb0-f202.google.com ([209.85.217.202]:33456 "EHLO mail-lb0-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753971Ab2IQRr6 (ORCPT ); Mon, 17 Sep 2012 13:47:58 -0400 Received: by mail-lb0-f202.google.com with SMTP id ge1so416750lbb.1 for ; Mon, 17 Sep 2012 10:47:57 -0700 (PDT) In-Reply-To: <1347904037-24229-1-git-send-email-anatol.pomozov@gmail.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: It makes the code more compact and consistent. This change is a refactoring that does not change any functionality. Signed-off-by: Anatol Pomozov --- fs/ext4/namei.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 6863cdf..f9846e4 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -2359,15 +2359,16 @@ static int empty_dir(struct inode *inode) int ext4_orphan_add(handle_t *handle, struct inode *inode) { struct super_block *sb = inode->i_sb; + struct ext4_sb_info *sbi = EXT4_SB(sb); struct ext4_iloc iloc; int err = 0, rc; - if (!EXT4_SB(sb)->s_journal) + if (!sbi->s_journal) return 0; if (!ext4_handle_valid(handle)) return 0; - mutex_lock(&EXT4_SB(sb)->s_orphan_lock); + mutex_lock(&sbi->s_orphan_lock); if (!list_empty(&EXT4_I(inode)->i_orphan)) goto out_unlock; @@ -2380,8 +2381,8 @@ int ext4_orphan_add(handle_t *handle, struct inode *inode) J_ASSERT((S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) || inode->i_nlink == 0); - BUFFER_TRACE(EXT4_SB(sb)->s_sbh, "get_write_access"); - err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh); + BUFFER_TRACE(sbi->s_sbh, "get_write_access"); + err = ext4_journal_get_write_access(handle, sbi->s_sbh); if (err) goto out_unlock; @@ -2393,12 +2394,12 @@ int ext4_orphan_add(handle_t *handle, struct inode *inode) * orphan list. If so skip on-disk list modification. */ if (NEXT_ORPHAN(inode) && NEXT_ORPHAN(inode) <= - (le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count))) + (le32_to_cpu(sbi->s_es->s_inodes_count))) goto mem_insert; /* Insert this inode at the head of the on-disk orphan list... */ - NEXT_ORPHAN(inode) = le32_to_cpu(EXT4_SB(sb)->s_es->s_last_orphan); - EXT4_SB(sb)->s_es->s_last_orphan = cpu_to_le32(inode->i_ino); + NEXT_ORPHAN(inode) = le32_to_cpu(sbi->s_es->s_last_orphan); + sbi->s_es->s_last_orphan = cpu_to_le32(inode->i_ino); err = ext4_handle_dirty_super(handle, sb); rc = ext4_mark_iloc_dirty(handle, inode, &iloc); if (!err) @@ -2414,13 +2415,13 @@ int ext4_orphan_add(handle_t *handle, struct inode *inode) * anyway on the next recovery. */ mem_insert: if (!err) - list_add(&EXT4_I(inode)->i_orphan, &EXT4_SB(sb)->s_orphan); + list_add(&EXT4_I(inode)->i_orphan, &sbi->s_orphan); jbd_debug(4, "superblock will point to %lu\n", inode->i_ino); jbd_debug(4, "orphan inode %lu will point to %d\n", inode->i_ino, NEXT_ORPHAN(inode)); out_unlock: - mutex_unlock(&EXT4_SB(sb)->s_orphan_lock); + mutex_unlock(&sbi->s_orphan_lock); ext4_std_error(inode->i_sb, err); return err; } @@ -2433,24 +2434,23 @@ int ext4_orphan_del(handle_t *handle, struct inode *inode) { struct list_head *prev; struct ext4_inode_info *ei = EXT4_I(inode); - struct ext4_sb_info *sbi; + struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); __u32 ino_next; struct ext4_iloc iloc; int err = 0; - if (!EXT4_SB(inode->i_sb)->s_journal) + if (!sbi->s_journal) return 0; /* ext4_handle_valid() assumes a valid handle_t pointer */ if (handle && !ext4_handle_valid(handle)) return 0; - mutex_lock(&EXT4_SB(inode->i_sb)->s_orphan_lock); + mutex_lock(&sbi->s_orphan_lock); if (list_empty(&ei->i_orphan)) goto out; ino_next = NEXT_ORPHAN(inode); prev = ei->i_orphan.prev; - sbi = EXT4_SB(inode->i_sb); jbd_debug(4, "remove inode %lu from orphan list\n", inode->i_ino); @@ -2496,7 +2496,7 @@ int ext4_orphan_del(handle_t *handle, struct inode *inode) out_err: ext4_std_error(inode->i_sb, err); out: - mutex_unlock(&EXT4_SB(inode->i_sb)->s_orphan_lock); + mutex_unlock(&sbi->s_orphan_lock); return err; out_brelse: -- 1.7.12