Signed-off-by: Jan Kara <jack@xxxxxxx>
---
misc/mke2fs.8.in | 5 +++++
misc/mke2fs.c | 36 +++++++++++++++++++++++++++++++++++-
2 files changed, 40 insertions(+), 1 deletion(-)
diff --git a/misc/mke2fs.8.in b/misc/mke2fs.8.in
index 84248ffc9e1d..3747c93a02bf 100644
--- a/misc/mke2fs.8.in
+++ b/misc/mke2fs.8.in
@@ -403,6 +403,11 @@ filesystem to change based on the user running \fBmke2fs\fR.
Set a flag in the filesystem superblock indicating that it may be
mounted using experimental kernel code, such as the ext4dev filesystem.
.TP
+.BI orphan_file_size= size
+Set size of the file for tracking unlinked but still open inodes and inodes
+with truncate in progress. Larger file allows for better scalability, reserving
+a few blocks per cpu is ideal.
+.TP
.B discard
Attempt to discard blocks at mkfs time (discarding blocks initially is useful
on solid state devices and sparse / thin-provisioned storage). When the device
diff --git a/misc/mke2fs.c b/misc/mke2fs.c
index afbcf486bad2..8a5cf9b920e6 100644
--- a/misc/mke2fs.c
+++ b/misc/mke2fs.c
@@ -94,6 +94,7 @@ static gid_t root_gid;
int journal_size;
int journal_flags;
int journal_fc_size;
+static e2_blkcnt_t orphan_file_blocks;
static int lazy_itable_init;
static int packed_meta_blocks;
int no_copy_xattrs;
@@ -1087,6 +1088,21 @@ static void parse_extended_opts(struct ext2_super_block *param,
continue;
}
encoding_flags = arg;
+ } else if (!strcmp(token, "orphan_file_size")) {
+ if (!arg) {
+ r_usage++;
+ badopt = token;
+ continue;
+ }
+ orphan_file_blocks = parse_num_blocks2(arg,
+ fs_param.s_log_block_size);
+ if (orphan_file_blocks == 0) {
+ fprintf(stderr,
+ _("Invalid size of orphan file %s\n"),
+ arg);
+ r_usage++;
+ continue;
+ }
} else {
r_usage++;
badopt = token;
@@ -1154,7 +1170,8 @@ static __u32 ok_features[3] = {
EXT2_FEATURE_COMPAT_EXT_ATTR |
EXT4_FEATURE_COMPAT_SPARSE_SUPER2 |
EXT4_FEATURE_COMPAT_FAST_COMMIT |
- EXT4_FEATURE_COMPAT_STABLE_INODES,
+ EXT4_FEATURE_COMPAT_STABLE_INODES |
+ EXT4_FEATURE_COMPAT_ORPHAN_FILE,
/* Incompat */
EXT2_FEATURE_INCOMPAT_FILETYPE|
EXT3_FEATURE_INCOMPAT_EXTENTS|
@@ -3438,6 +3455,23 @@ no_journal:
fix_cluster_bg_counts(fs);
if (ext2fs_has_feature_quota(&fs_param))
create_quota_inodes(fs);
+ if (ext2fs_has_feature_orphan_file(&fs_param)) {
+ if (!ext2fs_has_feature_journal(&fs_param)) {
+ com_err(program_name, 0, _("cannot set orphan_file "
+ "flag without a journal."));
+ exit(1);
+ }
+ if (!orphan_file_blocks) {
+ orphan_file_blocks =
+ ext2fs_default_orphan_file_blocks(fs);
+ }
+ retval = ext2fs_create_orphan_file(fs, orphan_file_blocks);
+ if (retval) {
+ com_err(program_name, retval,
+ _("while creating orphan file"));
+ exit(1);
+ }
+ }
retval = mk_hugefiles(fs, device_name);
if (retval)
--
2.26.2
