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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2024-09-06 16:14:45 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-09-06 08:51:08 -0600 |
| commit | 68d20eb60efbdc80662efedeb088353e9c4aa17f (patch) | |
| tree | 008eb7b4c8374097a2766b8f8f792f8901bc2e8d /drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | |
| parent | 6086aeb49e3d9e25165769b2a0a13ff67f98a1a2 (diff) | |
zram: Shrink zram_table_entry::flags.
The zram_table_entry::flags member is of type long and uses 8 bytes on a
64bit architecture. With a PAGE_SIZE of 256KiB we have PAGE_SHIFT of 18
which in turn leads to __NR_ZRAM_PAGEFLAGS = 27. This still fits in an
ordinary integer.
By reducing the size of `flags' to four bytes, the size of the struct
goes back to 16 bytes. The padding between the lock and ac_time (if
enabled) is also gone.
Make zram_table_entry::flags an unsigned int and update the build test
to reflect the change.
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/r/20240906141520.730009-4-bigeasy@linutronix.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c')
0 files changed, 0 insertions, 0 deletions