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[RFC,PKS/PMEM,39/58] fs/jffs2: Utilize new kmap_thread()

Message ID 20201009195033.3208459-40-ira.weiny@intel.com (mailing list archive)
State New, archived
Headers show
Series PMEM: Introduce stray write protection for PMEM | expand

Commit Message

Ira Weiny Oct. 9, 2020, 7:50 p.m. UTC
From: Ira Weiny <ira.weiny@intel.com>

These kmap() calls are localized to a single thread.  To avoid the over head of
global PKRS updates use the new kmap_thread() call.

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
 fs/jffs2/file.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index 3e6d54f9b011..14dd2b18cc16 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -287,13 +287,13 @@  static int jffs2_write_end(struct file *filp, struct address_space *mapping,
 	/* In 2.4, it was already kmapped by generic_file_write(). Doesn't
 	   hurt to do it again. The alternative is ifdefs, which are ugly. */
-	kmap(pg);
+	kmap_thread(pg);
 	ret = jffs2_write_inode_range(c, f, ri, page_address(pg) + aligned_start,
 				      (pg->index << PAGE_SHIFT) + aligned_start,
 				      end - aligned_start, &writtenlen);
-	kunmap(pg);
+	kunmap_thread(pg);
 	if (ret) {
 		/* There was an error writing. */