X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=fs%2Fjbd2%2Fcommit.c;h=8d6f934c3d9543d3c87a77f5ec3566df7a2b2a37;hb=832b5d0bf94cab3ab1ca690fca3c3d931f5fa7cd;hp=1073259902a60b47a6504d9ce4b7ae4d19d81bb0;hpb=3d904704c8a23cda6423f82aadea1336df31b864;p=platform%2Fkernel%2Flinux-starfive.git

diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 1073259..8d6f934 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -298,14 +298,12 @@ static int journal_finish_inode_data_buffers(journal_t *journal,
 
 static __u32 jbd2_checksum_data(__u32 crc32_sum, struct buffer_head *bh)
 {
-	struct page *page = bh->b_page;
 	char *addr;
 	__u32 checksum;
 
-	addr = kmap_atomic(page);
-	checksum = crc32_be(crc32_sum,
-		(void *)(addr + offset_in_page(bh->b_data)), bh->b_size);
-	kunmap_atomic(addr);
+	addr = kmap_local_folio(bh->b_folio, bh_offset(bh));
+	checksum = crc32_be(crc32_sum, addr, bh->b_size);
+	kunmap_local(addr);
 
 	return checksum;
 }
@@ -322,7 +320,6 @@ static void jbd2_block_tag_csum_set(journal_t *j, journal_block_tag_t *tag,
 				    struct buffer_head *bh, __u32 sequence)
 {
 	journal_block_tag3_t *tag3 = (journal_block_tag3_t *)tag;
-	struct page *page = bh->b_page;
 	__u8 *addr;
 	__u32 csum32;
 	__be32 seq;
@@ -331,11 +328,10 @@ static void jbd2_block_tag_csum_set(journal_t *j, journal_block_tag_t *tag,
 		return;
 
 	seq = cpu_to_be32(sequence);
-	addr = kmap_atomic(page);
+	addr = kmap_local_folio(bh->b_folio, bh_offset(bh));
 	csum32 = jbd2_chksum(j, j->j_csum_seed, (__u8 *)&seq, sizeof(seq));
-	csum32 = jbd2_chksum(j, csum32, addr + offset_in_page(bh->b_data),
-			     bh->b_size);
-	kunmap_atomic(addr);
+	csum32 = jbd2_chksum(j, csum32, addr, bh->b_size);
+	kunmap_local(addr);
 
 	if (jbd2_has_feature_csum3(j))
 		tag3->t_checksum = cpu_to_be32(csum32);