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author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2023-07-08 12:13:45 +0200 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-05 08:31:41 +0200 |
commit | f5992717b5826debc4aa58d4da6233563b139320 (patch) | |
tree | 508161da0c47deed4d4fca91df1eb807c0786790 /include/linux/dev_printk.h | |
parent | 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 (diff) |
kobject: Reorder fields in 'struct kobject'
Group some variables based on their sizes to reduce hole and avoid padding.
On x86_64, this shrinks the size of 'struct kobject' from 256 to 244 bytes.
This structure is often included in some other structures. So these other
structures will also benefit from this 8 bytes saving.
This is especially nice for structure like 'cma_kobject' or 'class_dir'
that are now 256 bytes long. When they are kzalloc()'ed, 256 bytes are
allocated, instead of 512.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/6c7d1e3005dbec5483bdb9b7b60071175bf7bf70.1688811201.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/dev_printk.h')
0 files changed, 0 insertions, 0 deletions