[PATCH 2/2] ext4: rename system_blks to s_system_blks inside ext4_sb_info

[brookxu <brookxu.cn@xxxxxxxxx>]

Rename system_blks to s_system_blks inside ext4_sb_info, keep
the naming rules consistent with other variables, which is
convenient for code reading and writing.

Signed-off-by: Chunguang Xu <brookxu@xxxxxxxxxxx>
---
 fs/ext4/block_validity.c | 14 +++++++-------
 fs/ext4/ext4.h           |  2 +-
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/fs/ext4/block_validity.c b/fs/ext4/block_validity.c
index 16e9b2f..69240b4 100644
--- a/fs/ext4/block_validity.c
+++ b/fs/ext4/block_validity.c
@@ -138,7 +138,7 @@ static void debug_print_tree(struct ext4_sb_info *sbi)
 
     printk(KERN_INFO "System zones: ");
     rcu_read_lock();
-    system_blks = rcu_dereference(sbi->system_blks);
+    system_blks = rcu_dereference(sbi->s_system_blks);
     node = rb_first(&system_blks->root);
     while (node) {
         entry = rb_entry(node, struct ext4_system_zone, node);
@@ -263,11 +263,11 @@ int ext4_setup_system_zone(struct super_block *sb)
     int ret;
 
     if (!test_opt(sb, BLOCK_VALIDITY)) {
-        if (sbi->system_blks)
+        if (sbi->s_system_blks)
             ext4_release_system_zone(sb);
         return 0;
     }
-    if (sbi->system_blks)
+    if (sbi->s_system_blks)
         return 0;
 
     system_blks = kzalloc(sizeof(*system_blks), GFP_KERNEL);
@@ -308,7 +308,7 @@ int ext4_setup_system_zone(struct super_block *sb)
      * with ext4_data_block_valid() accessing the rbtree at the same
      * time.
      */
-    rcu_assign_pointer(sbi->system_blks, system_blks);
+    rcu_assign_pointer(sbi->s_system_blks, system_blks);
 
     if (test_opt(sb, DEBUG))
         debug_print_tree(sbi);
@@ -333,9 +333,9 @@ void ext4_release_system_zone(struct super_block *sb)
 {
     struct ext4_system_blocks *system_blks;
 
-    system_blks = rcu_dereference_protected(EXT4_SB(sb)->system_blks,
+    system_blks = rcu_dereference_protected(EXT4_SB(sb)->s_system_blks,
                     lockdep_is_held(&sb->s_umount));
-    rcu_assign_pointer(EXT4_SB(sb)->system_blks, NULL);
+    rcu_assign_pointer(EXT4_SB(sb)->s_system_blks, NULL);
 
     if (system_blks)
         call_rcu(&system_blks->rcu, ext4_destroy_system_zone);
@@ -353,7 +353,7 @@ int ext4_data_block_valid(struct ext4_sb_info *sbi, ext4_fsblk_t start_blk,
      * mount option.
      */
     rcu_read_lock();
-    system_blks = rcu_dereference(sbi->system_blks);
+    system_blks = rcu_dereference(sbi->s_system_blks);
     ret = ext4_data_block_valid_rcu(sbi, system_blks, start_blk,
                     count);
     rcu_read_unlock();
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 8ca9adf..d60a462 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1470,7 +1470,7 @@ struct ext4_sb_info {
     int s_jquota_fmt;            /* Format of quota to use */
 #endif
     unsigned int s_want_extra_isize; /* New inodes should reserve # bytes */
-    struct ext4_system_blocks __rcu *system_blks;
+    struct ext4_system_blocks __rcu *s_system_blks;
 
 #ifdef EXTENTS_STATS
     /* ext4 extents stats */
-- 
1.8.3.1