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| author | Matthew Wilcox <willy@linux.intel.com> | 2015-07-03 16:40:39 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-07-04 21:56:56 +0200 |
| commit | 872eb127e3a6cddcfca1410bb808d9b9bc773dc1 (patch) | |
| tree | d7275d7533753a7077b651a011f09d9ea8b62e9d /fs/dax.c | |
| parent | dax: Add block size note to documentation (diff) | |
| download | linux-872eb127e3a6cddcfca1410bb808d9b9bc773dc1.tar.xz linux-872eb127e3a6cddcfca1410bb808d9b9bc773dc1.zip | |
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>
Diffstat (limited to '')
| -rw-r--r-- | fs/dax.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -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 |