linux/drivers/i2c
Theodore Ts'o 8e18e2941c [PATCH] inode_diet: Replace inode.u.generic_ip with inode.i_private
The following patches reduce the size of the VFS inode structure by 28 bytes
on a UP x86.  (It would be more on an x86_64 system).  This is a 10% reduction
in the inode size on a UP kernel that is configured in a production mode
(i.e., with no spinlock or other debugging functions enabled; if you want to
save memory taken up by in-core inodes, the first thing you should do is
disable the debugging options; they are responsible for a huge amount of bloat
in the VFS inode structure).

This patch:

The filesystem or device-specific pointer in the inode is inside a union,
which is pretty pointless given that all 30+ users of this field have been
using the void pointer.  Get rid of the union and rename it to i_private, with
a comment to explain who is allowed to use the void pointer.  This is just a
cleanup, but it allows us to reuse the union 'u' for something something where
the union will actually be used.

[judith@osdl.org: powerpc build fix]
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Judith Lebzelter <judith@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27 08:26:17 -07:00
..
algos i2c: Constify i2c_algorithm declarations, part 1 2006-09-26 15:38:52 -07:00
busses i2c: Constify i2c_algorithm declarations, part 2 2006-09-26 15:38:52 -07:00
chips [PATCH] inode_diet: Replace inode.u.generic_ip with inode.i_private 2006-09-27 08:26:17 -07:00
i2c-core.c i2c: Warn on i2c client creation failure 2006-09-26 15:38:52 -07:00
i2c-dev.c i2c-dev: attach/detach_adapter cleanups 2006-09-26 15:38:51 -07:00
Kconfig i2c: Fix copy-n-paste in subsystem Kconfig 2006-09-26 15:38:51 -07:00
Makefile [PATCH] hwmon: hwmon vs i2c, second round (07/11) 2005-09-05 09:14:22 -07:00