[PATCH v2 1/2] erofs-utils: lib/cache.c: replace &g_sbi with sbi

[Hongzhen Luo]

Prepare for the upcoming per-sbi buffer.

Signed-off-by: Hongzhen Luo <hongzhen at linux.alibaba.com>
---
v2: Changes since v1: remain unchanged
v1: https://lore.kernel.org/all/20240710065929.114911-1-hongzhen@linux.alibaba.com/
---
 include/erofs/cache.h |  9 ++++++---
 lib/cache.c           | 28 +++++++++++++++++-----------
 2 files changed, 23 insertions(+), 14 deletions(-)

diff --git a/include/erofs/cache.h b/include/erofs/cache.h
index 234185f..288843e 100644
--- a/include/erofs/cache.h
+++ b/include/erofs/cache.h
@@ -55,15 +55,17 @@ struct erofs_buffer_block {
 
 static inline const int get_alignsize(int type, int *type_ret)
 {
+	struct erofs_sb_info *sbi = &g_sbi;
+
 	if (type == DATA)
-		return erofs_blksiz(&g_sbi);
+		return erofs_blksiz(sbi);
 
 	if (type == INODE) {
 		*type_ret = META;
 		return sizeof(struct erofs_inode_compact);
 	} else if (type == DIRA) {
 		*type_ret = META;
-		return erofs_blksiz(&g_sbi);
+		return erofs_blksiz(sbi);
 	} else if (type == XATTR) {
 		*type_ret = META;
 		return sizeof(struct erofs_xattr_entry);
@@ -83,11 +85,12 @@ extern const struct erofs_bhops erofs_skip_write_bhops;
 static inline erofs_off_t erofs_btell(struct erofs_buffer_head *bh, bool end)
 {
 	const struct erofs_buffer_block *bb = bh->block;
+	struct erofs_sb_info *sbi = &g_sbi;
 
 	if (bb->blkaddr == NULL_ADDR)
 		return NULL_ADDR_UL;
 
-	return erofs_pos(&g_sbi, bb->blkaddr) +
+	return erofs_pos(sbi, bb->blkaddr) +
 		(end ? list_next_entry(bh, list)->off : bh->off);
 }
 
diff --git a/lib/cache.c b/lib/cache.c
index e3dc9de..69a3055 100644
--- a/lib/cache.c
+++ b/lib/cache.c
@@ -51,12 +51,13 @@ void erofs_buffer_init(erofs_blk_t startblk)
 static void erofs_bupdate_mapped(struct erofs_buffer_block *bb)
 {
 	struct list_head *bkt;
+	struct erofs_sb_info *sbi = &g_sbi;
 
 	if (bb->blkaddr == NULL_ADDR)
 		return;
 
 	bkt = mapped_buckets[bb->type] +
-		(bb->buffers.off & (erofs_blksiz(&g_sbi) - 1));
+		(bb->buffers.off & (erofs_blksiz(sbi) - 1));
 	list_del(&bb->mapped_list);
 	list_add_tail(&bb->mapped_list, bkt);
 }
@@ -69,7 +70,8 @@ static int __erofs_battach(struct erofs_buffer_block *bb,
 			   unsigned int extrasize,
 			   bool dryrun)
 {
-	const unsigned int blksiz = erofs_blksiz(&g_sbi);
+	struct erofs_sb_info *sbi = &g_sbi;
+	const unsigned int blksiz = erofs_blksiz(sbi);
 	const unsigned int blkmask = blksiz - 1;
 	erofs_off_t boff = bb->buffers.off;
 	const erofs_off_t alignedoffset = roundup(boff, alignsize);
@@ -86,7 +88,7 @@ static int __erofs_battach(struct erofs_buffer_block *bb,
 		blkaddr = bb->blkaddr;
 		if (blkaddr != NULL_ADDR) {
 			tailupdate = (tail_blkaddr == blkaddr +
-				      BLK_ROUND_UP(&g_sbi, boff));
+				      BLK_ROUND_UP(sbi, boff));
 			if (oob && !tailupdate)
 				return -EINVAL;
 		}
@@ -102,7 +104,7 @@ static int __erofs_battach(struct erofs_buffer_block *bb,
 		bb->buffers.off = boff;
 		/* need to update the tail_blkaddr */
 		if (tailupdate)
-			tail_blkaddr = blkaddr + BLK_ROUND_UP(&g_sbi, boff);
+			tail_blkaddr = blkaddr + BLK_ROUND_UP(sbi, boff);
 		erofs_bupdate_mapped(bb);
 	}
 	return ((alignedoffset + incr - 1) & blkmask) + 1;
@@ -125,7 +127,8 @@ static int erofs_bfind_for_attach(int type, erofs_off_t size,
 				  unsigned int alignsize,
 				  struct erofs_buffer_block **bbp)
 {
-	const unsigned int blksiz = erofs_blksiz(&g_sbi);
+	struct erofs_sb_info *sbi = &g_sbi;
+	const unsigned int blksiz = erofs_blksiz(sbi);
 	struct erofs_buffer_block *cur, *bb;
 	unsigned int used0, used_before, usedmax, used;
 	int ret;
@@ -315,6 +318,7 @@ struct erofs_buffer_head *erofs_battach(struct erofs_buffer_head *bh,
 static erofs_blk_t __erofs_mapbh(struct erofs_buffer_block *bb)
 {
 	erofs_blk_t blkaddr;
+	struct erofs_sb_info *sbi = &g_sbi;
 
 	if (bb->blkaddr == NULL_ADDR) {
 		bb->blkaddr = tail_blkaddr;
@@ -322,7 +326,7 @@ static erofs_blk_t __erofs_mapbh(struct erofs_buffer_block *bb)
 		erofs_bupdate_mapped(bb);
 	}
 
-	blkaddr = bb->blkaddr + BLK_ROUND_UP(&g_sbi, bb->buffers.off);
+	blkaddr = bb->blkaddr + BLK_ROUND_UP(sbi, bb->buffers.off);
 	if (blkaddr > tail_blkaddr)
 		tail_blkaddr = blkaddr;
 
@@ -360,7 +364,8 @@ static void erofs_bfree(struct erofs_buffer_block *bb)
 
 int erofs_bflush(struct erofs_buffer_block *bb)
 {
-	const unsigned int blksiz = erofs_blksiz(&g_sbi);
+	struct erofs_sb_info *sbi = &g_sbi;
+	const unsigned int blksiz = erofs_blksiz(sbi);
 	struct erofs_buffer_block *p, *n;
 	erofs_blk_t blkaddr;
 
@@ -392,11 +397,11 @@ int erofs_bflush(struct erofs_buffer_block *bb)
 
 		padding = blksiz - (p->buffers.off & (blksiz - 1));
 		if (padding != blksiz)
-			erofs_dev_fillzero(&g_sbi, erofs_pos(&g_sbi, blkaddr) - padding,
+			erofs_dev_fillzero(sbi, erofs_pos(sbi, blkaddr) - padding,
 					   padding, true);
 
 		if (p->type != DATA)
-			erofs_metablkcnt += BLK_ROUND_UP(&g_sbi, p->buffers.off);
+			erofs_metablkcnt += BLK_ROUND_UP(sbi, p->buffers.off);
 		erofs_dbg("block %u to %u flushed", p->blkaddr, blkaddr - 1);
 		erofs_bfree(p);
 	}
@@ -408,10 +413,11 @@ void erofs_bdrop(struct erofs_buffer_head *bh, bool tryrevoke)
 	struct erofs_buffer_block *const bb = bh->block;
 	const erofs_blk_t blkaddr = bh->block->blkaddr;
 	bool rollback = false;
+	struct erofs_sb_info *sbi = &g_sbi;
 
 	/* tail_blkaddr could be rolled back after revoking all bhs */
 	if (tryrevoke && blkaddr != NULL_ADDR &&
-	    tail_blkaddr == blkaddr + BLK_ROUND_UP(&g_sbi, bb->buffers.off))
+	    tail_blkaddr == blkaddr + BLK_ROUND_UP(sbi, bb->buffers.off))
 		rollback = true;
 
 	bh->op = &erofs_drop_directly_bhops;
@@ -421,7 +427,7 @@ void erofs_bdrop(struct erofs_buffer_head *bh, bool tryrevoke)
 		return;
 
 	if (!rollback && bb->type != DATA)
-		erofs_metablkcnt += BLK_ROUND_UP(&g_sbi, bb->buffers.off);
+		erofs_metablkcnt += BLK_ROUND_UP(sbi, bb->buffers.off);
 	erofs_bfree(bb);
 	if (rollback)
 		tail_blkaddr = blkaddr;
-- 
2.43.5