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Make the upgrade method of read-write locks atomic

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Chuandong Li
2023-11-30 23:47:56 +08:00
committed by Tate, Hongliang Tian
parent 07dd0fbd38
commit 5aa3124e66
4 changed files with 527 additions and 115 deletions
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2
services/libs/jinux-std/src/fs/ramfs/fs.rs
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@ -488,7 +488,7 @@ impl Inode for RamInode {
return device.write(buf);
}
let self_inode = self.0.read();
let self_inode = self.0.upread();
let Some(page_cache) = self_inode.inner.as_file() else {
return_errno_with_message!(Errno::EISDIR, "write is not supported");
};