8e18e2941c
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> |
||
|---|---|---|
| .. | ||
| Makefile | ||
| vxfs_bmap.c | ||
| vxfs_dir.h | ||
| vxfs_extern.h | ||
| vxfs_fshead.c | ||
| vxfs_fshead.h | ||
| vxfs_immed.c | ||
| vxfs_inode.c | ||
| vxfs_inode.h | ||
| vxfs_lookup.c | ||
| vxfs_olt.c | ||
| vxfs_olt.h | ||
| vxfs_subr.c | ||
| vxfs_super.c | ||
| vxfs.h | ||