What little docs there were had a cut & paste error. We can do better. :) Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx> --- diff --git a/debugfs/debug_cmds.ct b/debugfs/debug_cmds.ct index 520933a..9a05ef7 100644 --- a/debugfs/debug_cmds.ct +++ b/debugfs/debug_cmds.ct @@ -181,10 +181,10 @@ request do_set_mmp_value, "Set MMP value", request do_extent_open, "Open inode for extent manipulation", extent_open, eo; -request do_zap_block, "Zap block", +request do_zap_block, "Zap block: fill with 0, pattern, flip bits etc.", zap_block, zap; -request do_dump_block, "Zap block", +request do_dump_block, "Dump contents of a block", block_dump, bp; end; diff --git a/debugfs/debugfs.8.in b/debugfs/debugfs.8.in index bfcb1a8..4164c3a 100644 --- a/debugfs/debugfs.8.in +++ b/debugfs/debugfs.8.in @@ -215,6 +215,10 @@ option is given set the owner, group and permissions information on to match .IR filespec . .TP +.I dump_block [-f out_file] block_num +Dump the contents of a block, optionally to +.IR out_file . +.TP .I dump_mmp Display the multiple-mount protection (mmp) field values. .TP @@ -612,6 +616,14 @@ Create a file in the filesystem named and copy the contents of .I source_file into the destination file. +.TP +.I zap_block [-f file] [-o offset] [-l length] [-p pattern] block_num +Zero, or pattern-fill, portions of a block within a file or +within the filesystem. +.TP +.I zap_block [-f file] [-b bit] block_num +Bit-flip portions of a block within a file or +within the filesystem. .SH ENVIRONMENT VARIABLES .TP .B DEBUGFS_PAGER, PAGER -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
