[PATCH 06/15] squashfs: use bvec_virt

[Christoph Hellwig]

Use bvec_virt instead of open coding it.

Signed-off-by: Christoph Hellwig <hch at lst.de>
---
 fs/squashfs/block.c        | 7 +++----
 fs/squashfs/lz4_wrapper.c  | 2 +-
 fs/squashfs/lzo_wrapper.c  | 2 +-
 fs/squashfs/xz_wrapper.c   | 2 +-
 fs/squashfs/zlib_wrapper.c | 2 +-
 fs/squashfs/zstd_wrapper.c | 2 +-
 6 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/fs/squashfs/block.c b/fs/squashfs/block.c
index 855f0e87066d..2db8bcf7ff85 100644
--- a/fs/squashfs/block.c
+++ b/fs/squashfs/block.c
@@ -49,8 +49,7 @@ static int copy_bio_to_actor(struct bio *bio,
 
 		bytes_to_copy = min_t(int, bytes_to_copy,
 				      req_length - copied_bytes);
-		memcpy(actor_addr + actor_offset,
-		       page_address(bvec->bv_page) + bvec->bv_offset + offset,
+		memcpy(actor_addr + actor_offset, bvec_virt(bvec) + offset,
 		       bytes_to_copy);
 
 		actor_offset += bytes_to_copy;
@@ -177,7 +176,7 @@ int squashfs_read_data(struct super_block *sb, u64 index, int length,
 			goto out_free_bio;
 		}
 		/* Extract the length of the metadata block */
-		data = page_address(bvec->bv_page) + bvec->bv_offset;
+		data = bvec_virt(bvec);
 		length = data[offset];
 		if (offset < bvec->bv_len - 1) {
 			length |= data[offset + 1] << 8;
@@ -186,7 +185,7 @@ int squashfs_read_data(struct super_block *sb, u64 index, int length,
 				res = -EIO;
 				goto out_free_bio;
 			}
-			data = page_address(bvec->bv_page) + bvec->bv_offset;
+			data = bvec_virt(bvec);
 			length |= data[0] << 8;
 		}
 		bio_free_pages(bio);
diff --git a/fs/squashfs/lz4_wrapper.c b/fs/squashfs/lz4_wrapper.c
index 233d5582fbee..b685b6238316 100644
--- a/fs/squashfs/lz4_wrapper.c
+++ b/fs/squashfs/lz4_wrapper.c
@@ -101,7 +101,7 @@ static int lz4_uncompress(struct squashfs_sb_info *msblk, void *strm,
 	while (bio_next_segment(bio, &iter_all)) {
 		int avail = min(bytes, ((int)bvec->bv_len) - offset);
 
-		data = page_address(bvec->bv_page) + bvec->bv_offset;
+		data = bvec_virt(bvec);
 		memcpy(buff, data + offset, avail);
 		buff += avail;
 		bytes -= avail;
diff --git a/fs/squashfs/lzo_wrapper.c b/fs/squashfs/lzo_wrapper.c
index 97bb7d92ddcd..cb510a631968 100644
--- a/fs/squashfs/lzo_wrapper.c
+++ b/fs/squashfs/lzo_wrapper.c
@@ -76,7 +76,7 @@ static int lzo_uncompress(struct squashfs_sb_info *msblk, void *strm,
 	while (bio_next_segment(bio, &iter_all)) {
 		int avail = min(bytes, ((int)bvec->bv_len) - offset);
 
-		data = page_address(bvec->bv_page) + bvec->bv_offset;
+		data = bvec_virt(bvec);
 		memcpy(buff, data + offset, avail);
 		buff += avail;
 		bytes -= avail;
diff --git a/fs/squashfs/xz_wrapper.c b/fs/squashfs/xz_wrapper.c
index e80419aed862..68f6d09bb3a2 100644
--- a/fs/squashfs/xz_wrapper.c
+++ b/fs/squashfs/xz_wrapper.c
@@ -146,7 +146,7 @@ static int squashfs_xz_uncompress(struct squashfs_sb_info *msblk, void *strm,
 			}
 
 			avail = min(length, ((int)bvec->bv_len) - offset);
-			data = page_address(bvec->bv_page) + bvec->bv_offset;
+			data = bvec_virt(bvec);
 			length -= avail;
 			stream->buf.in = data + offset;
 			stream->buf.in_size = avail;
diff --git a/fs/squashfs/zlib_wrapper.c b/fs/squashfs/zlib_wrapper.c
index bcb881ec47f2..a20e9042146b 100644
--- a/fs/squashfs/zlib_wrapper.c
+++ b/fs/squashfs/zlib_wrapper.c
@@ -76,7 +76,7 @@ static int zlib_uncompress(struct squashfs_sb_info *msblk, void *strm,
 			}
 
 			avail = min(length, ((int)bvec->bv_len) - offset);
-			data = page_address(bvec->bv_page) + bvec->bv_offset;
+			data = bvec_virt(bvec);
 			length -= avail;
 			stream->next_in = data + offset;
 			stream->avail_in = avail;
diff --git a/fs/squashfs/zstd_wrapper.c b/fs/squashfs/zstd_wrapper.c
index b7cb1faa652d..0015cf8b5582 100644
--- a/fs/squashfs/zstd_wrapper.c
+++ b/fs/squashfs/zstd_wrapper.c
@@ -94,7 +94,7 @@ static int zstd_uncompress(struct squashfs_sb_info *msblk, void *strm,
 			}
 
 			avail = min(length, ((int)bvec->bv_len) - offset);
-			data = page_address(bvec->bv_page) + bvec->bv_offset;
+			data = bvec_virt(bvec);
 			length -= avail;
 			in_buf.src = data + offset;
 			in_buf.size = avail;
-- 
2.30.2