Patch "ext4: make ext4_es_insert_extent() return void" has been added to the 5.15-stable tree

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This is a note to let you know that I've just added the patch titled

    ext4: make ext4_es_insert_extent() return void

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     ext4-make-ext4_es_insert_extent-return-void.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 345939d8af4ebe300ab0c57e48e8e68d6751247f
Author: Baokun Li <libaokun1@xxxxxxxxxx>
Date:   Mon Apr 24 11:38:45 2023 +0800

    ext4: make ext4_es_insert_extent() return void
    
    [ Upstream commit 6c120399cde6b1b5cf65ce403765c579fb3d3e50 ]
    
    Now ext4_es_insert_extent() never return error, so make it return void.
    
    Signed-off-by: Baokun Li <libaokun1@xxxxxxxxxx>
    Reviewed-by: Jan Kara <jack@xxxxxxx>
    Link: https://lore.kernel.org/r/20230424033846.4732-12-libaokun1@xxxxxxxxxx
    Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
    Stable-dep-of: 0ea6560abb3b ("ext4: check the extent status again before inserting delalloc block")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index cece004b32d5c..6c41bf322315c 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3112,8 +3112,9 @@ static int ext4_zeroout_es(struct inode *inode, struct ext4_extent *ex)
 	if (ee_len == 0)
 		return 0;
 
-	return ext4_es_insert_extent(inode, ee_block, ee_len, ee_pblock,
-				     EXTENT_STATUS_WRITTEN);
+	ext4_es_insert_extent(inode, ee_block, ee_len, ee_pblock,
+			      EXTENT_STATUS_WRITTEN);
+	return 0;
 }
 
 /* FIXME!! we need to try to merge to left or right after zero-out  */
diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index ee52dd6afe543..be3b3ccbf70b6 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -848,12 +848,10 @@ static int __es_insert_extent(struct inode *inode, struct extent_status *newes,
 /*
  * ext4_es_insert_extent() adds information to an inode's extent
  * status tree.
- *
- * Return 0 on success, error code on failure.
  */
-int ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
-			  ext4_lblk_t len, ext4_fsblk_t pblk,
-			  unsigned int status)
+void ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
+			   ext4_lblk_t len, ext4_fsblk_t pblk,
+			   unsigned int status)
 {
 	struct extent_status newes;
 	ext4_lblk_t end = lblk + len - 1;
@@ -865,13 +863,13 @@ int ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
 	bool revise_pending = false;
 
 	if (EXT4_SB(inode->i_sb)->s_mount_state & EXT4_FC_REPLAY)
-		return 0;
+		return;
 
 	es_debug("add [%u/%u) %llu %x to extent status tree of inode %lu\n",
 		 lblk, len, pblk, status, inode->i_ino);
 
 	if (!len)
-		return 0;
+		return;
 
 	BUG_ON(end < lblk);
 
@@ -940,7 +938,7 @@ int ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
 		goto retry;
 
 	ext4_es_print_tree(inode);
-	return 0;
+	return;
 }
 
 /*
diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h
index 4ec30a7982605..481ec4381bee6 100644
--- a/fs/ext4/extents_status.h
+++ b/fs/ext4/extents_status.h
@@ -127,9 +127,9 @@ extern int __init ext4_init_es(void);
 extern void ext4_exit_es(void);
 extern void ext4_es_init_tree(struct ext4_es_tree *tree);
 
-extern int ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
-				 ext4_lblk_t len, ext4_fsblk_t pblk,
-				 unsigned int status);
+extern void ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
+				  ext4_lblk_t len, ext4_fsblk_t pblk,
+				  unsigned int status);
 extern void ext4_es_cache_extent(struct inode *inode, ext4_lblk_t lblk,
 				 ext4_lblk_t len, ext4_fsblk_t pblk,
 				 unsigned int status);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 64a783f221052..7ad37c807147b 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -589,10 +589,8 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode,
 		    ext4_es_scan_range(inode, &ext4_es_is_delayed, map->m_lblk,
 				       map->m_lblk + map->m_len - 1))
 			status |= EXTENT_STATUS_DELAYED;
-		ret = ext4_es_insert_extent(inode, map->m_lblk,
-					    map->m_len, map->m_pblk, status);
-		if (ret < 0)
-			retval = ret;
+		ext4_es_insert_extent(inode, map->m_lblk, map->m_len,
+				      map->m_pblk, status);
 	}
 	up_read((&EXT4_I(inode)->i_data_sem));
 
@@ -701,12 +699,8 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode,
 		    ext4_es_scan_range(inode, &ext4_es_is_delayed, map->m_lblk,
 				       map->m_lblk + map->m_len - 1))
 			status |= EXTENT_STATUS_DELAYED;
-		ret = ext4_es_insert_extent(inode, map->m_lblk, map->m_len,
-					    map->m_pblk, status);
-		if (ret < 0) {
-			retval = ret;
-			goto out_sem;
-		}
+		ext4_es_insert_extent(inode, map->m_lblk, map->m_len,
+				      map->m_pblk, status);
 	}
 
 out_sem:
@@ -1784,7 +1778,6 @@ static int ext4_da_map_blocks(struct inode *inode, sector_t iblock,
 		set_buffer_new(bh);
 		set_buffer_delay(bh);
 	} else if (retval > 0) {
-		int ret;
 		unsigned int status;
 
 		if (unlikely(retval != map->m_len)) {
@@ -1797,10 +1790,8 @@ static int ext4_da_map_blocks(struct inode *inode, sector_t iblock,
 
 		status = map->m_flags & EXT4_MAP_UNWRITTEN ?
 				EXTENT_STATUS_UNWRITTEN : EXTENT_STATUS_WRITTEN;
-		ret = ext4_es_insert_extent(inode, map->m_lblk, map->m_len,
-					    map->m_pblk, status);
-		if (ret != 0)
-			retval = ret;
+		ext4_es_insert_extent(inode, map->m_lblk, map->m_len,
+				      map->m_pblk, status);
 	}
 
 out_unlock:




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