On Sun, 01 Jul 2007 03:35:48 -0400
Mingming Cao <cmm@xxxxxxxxxx> wrote:
> Add a mount option to turn off extents.
Please update the changelog to describe the reason for making this change.
> Signed-off-by: Mingming Cao <cmm@xxxxxxxxxx>
> ---
> Index: linux-2.6.22-rc4/fs/ext4/super.c
> ===================================================================
> --- linux-2.6.22-rc4.orig/fs/ext4/super.c 2007-06-11 17:02:18.000000000 -0700
> +++ linux-2.6.22-rc4/fs/ext4/super.c 2007-06-11 17:02:22.000000000 -0700
> @@ -725,7 +725,7 @@
> Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
> Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota,
> Opt_ignore, Opt_barrier, Opt_err, Opt_resize, Opt_usrquota,
> - Opt_grpquota, Opt_extents,
> + Opt_grpquota, Opt_extents, Opt_noextents,
> };
>
> static match_table_t tokens = {
> @@ -776,6 +776,7 @@
> {Opt_usrquota, "usrquota"},
> {Opt_barrier, "barrier=%u"},
> {Opt_extents, "extents"},
> + {Opt_noextents, "noextents"},
> {Opt_err, NULL},
> {Opt_resize, "resize"},
> };
> @@ -1111,6 +1112,9 @@
> case Opt_extents:
> set_opt (sbi->s_mount_opt, EXTENTS);
> break;
> + case Opt_noextents:
> + clear_opt (sbi->s_mount_opt, EXTENTS);
> + break;
> default:
> printk (KERN_ERR
> "EXT4-fs: Unrecognized mount option \"%s\" "
>
>
> -
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