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https://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git
synced 2024-12-26 10:19:57 +08:00
mke2fs: add support for cluster size in mke2fs.conf
Add support for specifying the cluster size in mke2fs.conf Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
parent
4c2b28ab67
commit
2d34a25f81
@ -1177,7 +1177,7 @@ out:
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static void PRS(int argc, char *argv[])
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static void PRS(int argc, char *argv[])
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{
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{
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int b, c;
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int b, c;
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int size;
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int cluster_size = 0;
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char *tmp, **cpp;
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char *tmp, **cpp;
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int blocksize = 0;
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int blocksize = 0;
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int inode_ratio = 0;
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int inode_ratio = 0;
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@ -1305,16 +1305,14 @@ profile_error:
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cflag++;
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cflag++;
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break;
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break;
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case 'C':
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case 'C':
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size = strtoul(optarg, &tmp, 0);
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cluster_size = strtoul(optarg, &tmp, 0);
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if (size < EXT2_MIN_CLUSTER_SIZE ||
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if (cluster_size < EXT2_MIN_CLUSTER_SIZE ||
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size > EXT2_MAX_CLUSTER_SIZE || *tmp) {
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cluster_size > EXT2_MAX_CLUSTER_SIZE || *tmp) {
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com_err(program_name, 0,
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com_err(program_name, 0,
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_("invalid fragment size - %s"),
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_("invalid fragment size - %s"),
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optarg);
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optarg);
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exit(1);
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exit(1);
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}
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}
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fs_param.s_log_cluster_size =
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int_log2(size >> EXT2_MIN_CLUSTER_LOG_SIZE);
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break;
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break;
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case 'g':
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case 'g':
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fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
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fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
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@ -1801,9 +1799,12 @@ profile_error:
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fs_param.s_log_block_size =
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fs_param.s_log_block_size =
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int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
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int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
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if (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) {
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if (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) {
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if (fs_param.s_log_cluster_size == 0)
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if (!cluster_size)
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fs_param.s_log_cluster_size =
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cluster_size = get_int_from_profile(fs_types,
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fs_param.s_log_block_size + 4;
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"cluster_size",
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blocksize*4);
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fs_param.s_log_cluster_size =
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int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
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} else
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} else
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fs_param.s_log_cluster_size = fs_param.s_log_block_size;
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fs_param.s_log_cluster_size = fs_param.s_log_block_size;
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@ -395,6 +395,13 @@ on a per-filesystem type basis.
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This relation is a boolean which specifies whether the
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This relation is a boolean which specifies whether the
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.BR mke2fs (8)
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.BR mke2fs (8)
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should attempt to discard device prior to filesystem creation.
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should attempt to discard device prior to filesystem creation.
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.TP
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.I cluster_size
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This relation specifies the default cluster size if the bigalloc file
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system feature is enabled. It can be overridden via the
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.B \-C
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command line option to
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.BR mke2fs (8)
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.SH THE [devices] STANZA
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.SH THE [devices] STANZA
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Each tag in the
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Each tag in the
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.I [devices]
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.I [devices]
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