| From | "Theodore Ts'o" <> | Subject | [PATCH 42/49] ext4: Enable the multiblock allocator by default | Date | Mon, 21 Jan 2008 22:02:21 -0500 |
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From: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Enable the multiblock allocator by default.
Fix ext4_show_options() so if it is not enabled, the nomballoc option included in /proc/mounts.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/super.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 136d095..91a11ec 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -736,6 +736,8 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs) seq_puts(seq, ",nobh"); if (!test_opt(sb, EXTENTS)) seq_puts(seq, ",noextents"); + if (!test_opt(sb, MBALLOC)) + seq_puts(seq, ",nomballoc"); if (test_opt(sb, I_VERSION)) seq_puts(seq, ",i_version"); @@ -1902,6 +1904,11 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent) * User -o noextents to turn it off */ set_opt(sbi->s_mount_opt, EXTENTS); + /* + * turn on mballoc feature by default in ext4 filesystem + * User -o nomballoc to turn it off + */ + set_opt(sbi->s_mount_opt, MBALLOC); if (!parse_options ((char *) data, sb, &journal_inum, &journal_devnum, NULL, 0)) -- 1.5.4.rc3.31.g1271-dirty
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