Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
拉取/合并请求描述:(PR description)
[
为什么提交这份PR (why to submit this PR)
在验证根文件系统可行性的时候发现在tmpfs文件系统下读写文件系统会崩溃
你的解决方案是什么 (what is your solution)
tmp文件系统读写过程中,执行dfs_tmpfs_read时,由于file->vnode->size是无符号类型,所以在进行if(count < file->vnode->size - ops)这一步时会导致如果size小于ops时,减出来的数不是负数,而是一个非常大的正数,这样会导致即使文件没有内容读了。也会执行memcpy(buf, &(d_file->data[*pos]), length);这个函数,进而导致内存报错,所以在该函数中强制转换了一部分数据类型,目前运行正常,我编写了一个utest在rt-thread/examples/utest/testcases/dfs/tmpfs目录下,目前已经可以正常通过测试。
请提供验证的bsp和config (provide the config and bsp)
]
当前拉取/合并请求的状态 Intent for your PR
必须选择一项 Choose one (Mandatory):
代码质量 Code Quality:
我在这个拉取/合并请求中已经考虑了 As part of this pull request, I've considered the following:
#if 0
代码,不包含已经被注释了的代码 All redundant code is removed and cleaned up