fsck.c (wait_one): If the fsck process just started, wait a second
before sending a SIGUSR1, to give it a chance to set the signal
handler; otherwise, fsck will die on an unhandled SIGUSR1.
* mke2fs.c (PRS, set_fs_defaults): Add new option -T which allows the
user to specify the how the filesystem is to be used. Mke2fs now
chooses the filesystem parameters automatically based on the size of
the filesystem and the intended use of the filesystem. Add new option
-n which simply goes through the calculations to determine the
parameters of the filesystem the system would make.
* fsck.c, fsck.h: Add support for new option -C. This option will
automatically manage e2fsck processes so that they will print
completion/progress bars. If multiple filesystems are being checked,
arrange to make sure that only one e2fsck process is displaying a
progress bar at a time.
Theodore Ts'o