Searched hist:"7674 a42f" (Results 1 – 3 of 3) sorted by relevance
/openbmc/linux/fs/erofs/ |
H A D | utils.c | 7674a42f Mon May 29 07:37:27 CDT 2023 Gao Xiang <hsiangkao@linux.alibaba.com> erofs: use struct lockref to replace handcrafted approach
Let's avoid the current handcrafted lockref although `struct lockref` inclusion usually increases extra 4 bytes with an explicit spinlock if CONFIG_DEBUG_SPINLOCK is off.
Apart from the size difference, note that the meaning of refcount is also changed to active users. IOWs, it doesn't take an extra refcount for XArray tree insertion.
I don't observe any significant performance difference at least on our cloud compute server but the new one indeed simplifies the overall codebase a bit.
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> Reviewed-by: Yue Hu <huyue2@coolpad.com> Link: https://lore.kernel.org/r/20230529123727.79943-1-hsiangkao@linux.alibaba.com
|
H A D | internal.h | 7674a42f Mon May 29 07:37:27 CDT 2023 Gao Xiang <hsiangkao@linux.alibaba.com> erofs: use struct lockref to replace handcrafted approach
Let's avoid the current handcrafted lockref although `struct lockref` inclusion usually increases extra 4 bytes with an explicit spinlock if CONFIG_DEBUG_SPINLOCK is off.
Apart from the size difference, note that the meaning of refcount is also changed to active users. IOWs, it doesn't take an extra refcount for XArray tree insertion.
I don't observe any significant performance difference at least on our cloud compute server but the new one indeed simplifies the overall codebase a bit.
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> Reviewed-by: Yue Hu <huyue2@coolpad.com> Link: https://lore.kernel.org/r/20230529123727.79943-1-hsiangkao@linux.alibaba.com
|
H A D | zdata.c | 7674a42f Mon May 29 07:37:27 CDT 2023 Gao Xiang <hsiangkao@linux.alibaba.com> erofs: use struct lockref to replace handcrafted approach
Let's avoid the current handcrafted lockref although `struct lockref` inclusion usually increases extra 4 bytes with an explicit spinlock if CONFIG_DEBUG_SPINLOCK is off.
Apart from the size difference, note that the meaning of refcount is also changed to active users. IOWs, it doesn't take an extra refcount for XArray tree insertion.
I don't observe any significant performance difference at least on our cloud compute server but the new one indeed simplifies the overall codebase a bit.
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> Reviewed-by: Yue Hu <huyue2@coolpad.com> Link: https://lore.kernel.org/r/20230529123727.79943-1-hsiangkao@linux.alibaba.com
|