built successfully.
More configs may be tested in the coming days.
tested configs:
alphaallyesconfig gcc
alpha defconfig gcc
alpharandconfig-r002-20230712 gcc
alpharandconfig-r006-20230711 gcc
Currently if CONFIG_DEBUG_LOCK_ALLOC is not set
- rcu_read_lock_held() always returns 1
- rcu_read_lock_any_held() may return 0 with CONFIG_PREEMPT_RCU
This is inconsistent and it was discovered when trying a fix
for problem reported [1] with CONFIG_DEBUG_LOCK_ALLOC is not
set and CONFIG_PREEMPT_
On 2023/6/28 0:12, Gao Xiang wrote:
Use memcpy_to_page() instead of open-coding them.
In addition, add a missing flush_dcache_page() even though almost all
modern architectures clear `PG_dcache_clean` flag for new file cache
pages so that it doesn't change anything in practice.
Signed-off-by: G
On 2023/6/28 0:12, Gao Xiang wrote:
It's unnecessary to use kmap_atomic() compared with kmap_local_page().
In addition, kmap_atomic() is deprecated now.
Signed-off-by: Gao Xiang
Reviewed-by: Chao Yu
Thanks,
On 2023/7/11 14:21, Xin Yin wrote:
DAX can be used to share page cache between VMs, reducing guest memory
overhead. And chunk based data format is widely used for VM and
container image. So enable dax support for it, make erofs better used
for VM scenarios.
Fixes: c5aa903a59db ("erofs: support r
On 2023/7/10 17:34, Chunhai Guo wrote:
z_erofs_do_read_page() may loop infinitely due to the inappropriate
truncation in the below statement. Since the offset is 64 bits and min_t()
truncates the result to 32 bits. The solution is to replace unsigned int
with a 64-bit type, such as erofs_off_t.
On 2023/7/10 12:25, Chunhai Guo wrote:
z_erofs_pcluster_readmore() may take a long time to loop when the page
offset is large enough, which is unnecessary should be prevented.
For example, when the following case is encountered, it will loop 4691368
times, taking about 27 seconds.
- offset =
On 2023/7/11 14:21, Xin Yin wrote:
DAX can be used to share page cache between VMs, reducing guest memory
overhead. And chunk based data format is widely used for VM and
container image. So enable dax support for it, make erofs better used
for VM scenarios.
Fixes: c5aa903a59db ("erofs: suppor
