ext4: rename ext4_has_free_blocks() to ext4_has_free_clusters()

Rename the function so it is more clear what is going on.  Also rename
the various variables so it's clearer what's happening.

Also fix a missing blocks to cluster conversion when reading the
number of reserved blocks for root.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 557c34ffa05b..88dc63a01756 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2255,7 +2255,7 @@ static int ext4_nonda_switch(struct super_block *sb)
                 percpu_counter_read_positive(&sbi->s_freeclusters_counter));
         dirty_blocks = percpu_counter_read_positive(&sbi->s_dirtyclusters_counter);
         if (2 * free_blocks < 3 * dirty_blocks ||
-                free_blocks < (dirty_blocks + EXT4_FREEBLOCKS_WATERMARK)) {
+                free_blocks < (dirty_blocks + EXT4_FREECLUSTERS_WATERMARK)) {
                 /*
                  * free block count is less than 150% of dirty blocks
                  * or free blocks is less than watermark