[Intel-wired-lan] [PATCH RFC PKS/PMEM 28/58] fs/cachefiles: Utilize new kmap_thread()
ira.weiny at intel.com
ira.weiny at intel.com
Fri Oct 9 19:50:03 UTC 2020
From: Ira Weiny <ira.weiny at intel.com>
The kmap() calls in this FS are localized to a single thread. To avoid
the over head of global PKRS updates use the new kmap_thread() call.
Cc: David Howells <dhowells at redhat.com>
Signed-off-by: Ira Weiny <ira.weiny at intel.com>
---
fs/cachefiles/rdwr.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
index 3080cda9e824..2468e5c067ba 100644
--- a/fs/cachefiles/rdwr.c
+++ b/fs/cachefiles/rdwr.c
@@ -936,9 +936,9 @@ int cachefiles_write_page(struct fscache_storage *op, struct page *page)
}
}
- data = kmap(page);
+ data = kmap_thread(page);
ret = kernel_write(file, data, len, &pos);
- kunmap(page);
+ kunmap_thread(page);
fput(file);
if (ret != len)
goto error_eio;
--
2.28.0.rc0.12.gb6a658bd00c9
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