kernel_optimize_test/drivers/oprofile
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
..
buffer_sync.c [PATCH] oprofile: convert from semaphores to mutexes 2006-06-25 10:01:04 -07:00
buffer_sync.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cpu_buffer.c [PATCH] Add oprofile_add_ext_sample 2006-03-28 09:16:02 -08:00
cpu_buffer.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
event_buffer.c [PATCH] oprofile: convert from semaphores to mutexes 2006-06-25 10:01:04 -07:00
event_buffer.h [PATCH] oprofile: convert from semaphores to mutexes 2006-06-25 10:01:04 -07:00
oprof.c [PATCH] oprofile: convert from semaphores to mutexes 2006-06-25 10:01:04 -07:00
oprof.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
oprofile_files.c [PATCH] oprofile trivial user annotations 2005-04-26 07:43:42 -07:00
oprofile_stats.c [PATCH] for_each_possible_cpu: oprofile. 2006-03-28 09:16:05 -08:00
oprofile_stats.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
oprofilefs.c [PATCH] inode_diet: Replace inode.u.generic_ip with inode.i_private 2006-09-27 08:26:17 -07:00
timer_int.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00