ext4: rename ext4_set_bits to mb_set_bits

ext4_set_bits() should actually be mb_set_bits() for uniform API naming
convention.
This is via below cmd -

grep -nr "ext4_set_bits" fs/ext4/ | cut -d ":" -f 1 | xargs sed -i 's/ext4_set_bits/mb_set_bits/g'

Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/f1f6ece1405b76a7a987e9145d1adfaf71e30695.1644992610.git.riteshh@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

fs/ext4/ext4.h

@@ -1279,7 +1279,7 @@ struct ext4_inode_info {
 #define ext4_find_next_zero_bit		find_next_zero_bit_le
 #define ext4_find_next_bit		find_next_bit_le
 
-extern void ext4_set_bits(void *bm, int cur, int len);
+extern void mb_set_bits(void *bm, int cur, int len);
 
 /*
  * Maximal mount counts between two filesystem checks

fs/ext4/mballoc.c

@@ -1689,7 +1689,7 @@ static int mb_test_and_clear_bits(void *bm, int cur, int len)
 	return zero_bit;
 }
 
-void ext4_set_bits(void *bm, int cur, int len)
+void mb_set_bits(void *bm, int cur, int len)
 {
 	__u32 *addr;
 
@@ -1996,7 +1996,7 @@ static int mb_mark_used(struct ext4_buddy *e4b, struct ext4_free_extent *ex)
 	mb_set_largest_free_order(e4b->bd_sb, e4b->bd_info);
 
 	mb_update_avg_fragment_size(e4b->bd_sb, e4b->bd_info);
-	ext4_set_bits(e4b->bd_bitmap, ex->fe_start, len0);
+	mb_set_bits(e4b->bd_bitmap, ex->fe_start, len0);
 	mb_check_buddy(e4b);
 
 	return ret;
@@ -3825,7 +3825,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
 		 * We leak some of the blocks here.
 		 */
 		ext4_lock_group(sb, ac->ac_b_ex.fe_group);
-		ext4_set_bits(bitmap_bh->b_data, ac->ac_b_ex.fe_start,
+		mb_set_bits(bitmap_bh->b_data, ac->ac_b_ex.fe_start,
 			      ac->ac_b_ex.fe_len);
 		ext4_unlock_group(sb, ac->ac_b_ex.fe_group);
 		err = ext4_handle_dirty_metadata(handle, NULL, bitmap_bh);
@@ -3844,7 +3844,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
 		}
 	}
 #endif
-	ext4_set_bits(bitmap_bh->b_data, ac->ac_b_ex.fe_start,
+	mb_set_bits(bitmap_bh->b_data, ac->ac_b_ex.fe_start,
 		      ac->ac_b_ex.fe_len);
 	if (ext4_has_group_desc_csum(sb) &&
 	    (gdp->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT))) {
@@ -3939,7 +3939,7 @@ void ext4_mb_mark_bb(struct super_block *sb, ext4_fsblk_t block,
 
 		clen_changed = clen - already;
 		if (state)
-			ext4_set_bits(bitmap_bh->b_data, blkoff, clen);
+			mb_set_bits(bitmap_bh->b_data, blkoff, clen);
 		else
 			mb_test_and_clear_bits(bitmap_bh->b_data, blkoff, clen);
 		if (ext4_has_group_desc_csum(sb) &&
@@ -4459,7 +4459,7 @@ static void ext4_mb_generate_from_freelist(struct super_block *sb, void *bitmap,
 
 	while (n) {
 		entry = rb_entry(n, struct ext4_free_data, efd_node);
-		ext4_set_bits(bitmap, entry->efd_start_cluster, entry->efd_count);
+		mb_set_bits(bitmap, entry->efd_start_cluster, entry->efd_count);
 		n = rb_next(n);
 	}
 	return;
@@ -4500,7 +4500,7 @@ void ext4_mb_generate_from_pa(struct super_block *sb, void *bitmap,
 		if (unlikely(len == 0))
 			continue;
 		BUG_ON(groupnr != group);
-		ext4_set_bits(bitmap, start, len);
+		mb_set_bits(bitmap, start, len);
 		preallocated += len;
 	}
 	mb_debug(sb, "preallocated %d for group %u\n", preallocated, group);

fs/ext4/resize.c

@@ -483,7 +483,7 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
 		}
 		ext4_debug("mark block bitmap %#04llx (+%llu/%u)\n",
 			   first_cluster, first_cluster - start, count2);
-		ext4_set_bits(bh->b_data, first_cluster - start, count2);
+		mb_set_bits(bh->b_data, first_cluster - start, count2);
 
 		err = ext4_handle_dirty_metadata(handle, NULL, bh);
 		brelse(bh);
@@ -632,7 +632,7 @@ handle_bb:
 		if (overhead != 0) {
 			ext4_debug("mark backup superblock %#04llx (+0)\n",
 				   start);
-			ext4_set_bits(bh->b_data, 0,
+			mb_set_bits(bh->b_data, 0,
 				      EXT4_NUM_B2C(sbi, overhead));
 		}
 		ext4_mark_bitmap_end(EXT4_B2C(sbi, group_data[i].blocks_count),