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Date: Tue, 15 Jan 2013 23:22:50 +0800 From: Zheng Liu <gnehzuil.liu@...il.com> To: Theodore Ts'o <tytso@....edu> Cc: Ext4 Developers List <linux-ext4@...r.kernel.org> Subject: Re: [PATCH 2/5] mke2fs: the -g option will now specify the clusters per block group On Mon, Jan 14, 2013 at 07:37:09PM -0500, Theodore Ts'o wrote: > If bigalloc is enabled, then -g will specify the clusters per block > group. (If bigalloc is not enabled, then a cluster == a block, so the > meaning of -g is not changed.) > > Signed-off-by: "Theodore Ts'o" <tytso@....edu> Reviewed-by: Zheng Liu <wenqing.lz@...bao.com> Regards, - Zheng > --- > misc/mke2fs.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/misc/mke2fs.c b/misc/mke2fs.c > index 75d0e48..5cb49b3 100644 > --- a/misc/mke2fs.c > +++ b/misc/mke2fs.c > @@ -1962,6 +1962,15 @@ profile_error: > } > } > > + /* > + * If the bigalloc feature is enabled, then the -g option will > + * specify the number of clusters per group. > + */ > + if (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) { > + fs_param.s_clusters_per_group = fs_param.s_blocks_per_group; > + fs_param.s_blocks_per_group = 0; > + } > + > if (inode_size == 0) > inode_size = get_int_from_profile(fs_types, "inode_size", 0); > if (!flex_bg_size && (fs_param.s_feature_incompat & > -- > 1.7.12.rc0.22.gcdd159b > -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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