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-rw-r--r--misc/mke2fs.8.in12
1 files changed, 12 insertions, 0 deletions
diff --git a/misc/mke2fs.8.in b/misc/mke2fs.8.in
index c0b53245..30f97bb5 100644
--- a/misc/mke2fs.8.in
+++ b/misc/mke2fs.8.in
@@ -365,6 +365,13 @@ small risk if the system crashes before the journal has been overwritten
entirely one time. If the option value is omitted, it defaults to 1 to
enable lazy journal inode zeroing.
.TP
+.B assume_storage_prezeroed\fR[\fB= \fI<0 to disable, 1 to enable>\fR]
+If enabled,
+.BR mke2fs
+assumes that the storage device has been prezeroed, skips zeroing the journal
+and inode tables, and annotates the block group flags to signal that the inode
+table has been zeroed.
+.TP
.B no_copy_xattrs
Normally
.B mke2fs
@@ -403,6 +410,11 @@ file system to change based on the user running \fBmke2fs\fR.
Set a flag in the file system superblock indicating that it may be
mounted using experimental kernel code, such as the ext4dev file system.
.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