One disadvantage of enlarging the size of dev_t is
that struct inode grows. Bad.
We used to have i_dev and i_rdev; today i_rdev has split into
i_rdev, i_bdev and i_cdev. Bad.
It looks like these four fields can be replaced by a single one,
making struct inode smaller. Not bad.
The first step would be to delete the field i_dev, and
all assignments to it, and replace all remaining occurrences
by i_sb->s_dev.
Roughly speaking, the only use of this field is in the stat
system call.
Any objections?
Andries
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This archive was generated by hypermail 2b29 : Sat Nov 23 2002 - 22:00:34 EST