mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-11 12:28:41 +08:00
dax: Use copy_from_iter_nocache
When userspace does a write, there's no need for the written data to pollute the CPU cache. This matches the original XIP code. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
parent
44f4c054ca
commit
872eb127e3
2
fs/dax.c
2
fs/dax.c
@ -155,7 +155,7 @@ static ssize_t dax_io(struct inode *inode, struct iov_iter *iter,
|
||||
}
|
||||
|
||||
if (iov_iter_rw(iter) == WRITE)
|
||||
len = copy_from_iter(addr, max - pos, iter);
|
||||
len = copy_from_iter_nocache(addr, max - pos, iter);
|
||||
else if (!hole)
|
||||
len = copy_to_iter(addr, max - pos, iter);
|
||||
else
|
||||
|
Loading…
Reference in New Issue
Block a user