ext4: use ext4_kvzalloc()/ext4_kvmalloc() for s_group_desc and s_group_info

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

3 files changed, 15 insertions, 13 deletions

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index fa716c9b2455..d5021e82f8cc 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2331,7 +2331,7 @@ static int ext4_mb_init_backend(struct super_block *sb)
         /* An 8TB filesystem with 64-bit pointers requires a 4096 byte
          * kmalloc. A 128kb malloc should suffice for a 256TB filesystem.
          * So a two level scheme suffices for now. */
-        sbi->s_group_info = kzalloc(array_size, GFP_KERNEL);
+        sbi->s_group_info = ext4_kvzalloc(array_size, GFP_KERNEL);
         if (sbi->s_group_info == NULL) {
                 printk(KERN_ERR "EXT4-fs: can't allocate buddy meta group\n");
                 return -ENOMEM;
@@ -2365,7 +2365,7 @@ err_freebuddy:
                 kfree(sbi->s_group_info[i]);
         iput(sbi->s_buddy_cache);
 err_freesgi:
-        kfree(sbi->s_group_info);
+        ext4_kvfree(sbi->s_group_info);
         return -ENOMEM;
 }
 
@@ -2559,7 +2559,7 @@ int ext4_mb_release(struct super_block *sb)
                         EXT4_DESC_PER_BLOCK_BITS(sb);
                 for (i = 0; i < num_meta_group_infos; i++)
                         kfree(sbi->s_group_info[i]);
-                kfree(sbi->s_group_info);
+                ext4_kvfree(sbi->s_group_info);
         }
         kfree(sbi->s_mb_offsets);
         kfree(sbi->s_mb_maxs);
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 71085df97bbd..707d3f16f7ce 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -467,12 +467,13 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
         if (unlikely(err))
                 goto exit_dindj;
 
-        n_group_desc = kmalloc((gdb_num + 1) * sizeof(struct buffer_head *),
-                        GFP_NOFS);
+        n_group_desc = ext4_kvmalloc((gdb_num + 1) *
+                                     sizeof(struct buffer_head *),
+                                     GFP_NOFS);
         if (!n_group_desc) {
                 err = -ENOMEM;
-                ext4_warning(sb,
-                              "not enough memory for %lu groups", gdb_num + 1);
+                ext4_warning(sb, "not enough memory for %lu groups",
+                             gdb_num + 1);
                 goto exit_inode;
         }
 
@@ -507,7 +508,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
         n_group_desc[gdb_num] = gdb_bh;
         EXT4_SB(sb)->s_group_desc = n_group_desc;
         EXT4_SB(sb)->s_gdb_count++;
-        kfree(o_group_desc);
+        ext4_kvfree(o_group_desc);
 
         le16_add_cpu(&es->s_reserved_gdt_blocks, -1);
         err = ext4_handle_dirty_metadata(handle, NULL, EXT4_SB(sb)->s_sbh);
@@ -517,7 +518,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
         return err;
 
 exit_inode:
-        kfree(n_group_desc);
+        ext4_kvfree(n_group_desc);
         /* ext4_handle_release_buffer(handle, iloc.bh); */
         brelse(iloc.bh);
 exit_dindj:
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 658f5864e9cf..e2d88baf91d3 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -819,7 +819,7 @@ static void ext4_put_super(struct super_block *sb)
 
         for (i = 0; i < sbi->s_gdb_count; i++)
                 brelse(sbi->s_group_desc[i]);
-        kfree(sbi->s_group_desc);
+        ext4_kvfree(sbi->s_group_desc);
         ext4_kvfree(sbi->s_flex_groups);
         percpu_counter_destroy(&sbi->s_freeblocks_counter);
         percpu_counter_destroy(&sbi->s_freeinodes_counter);
@@ -3439,8 +3439,9 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
                         (EXT4_MAX_BLOCK_FILE_PHYS / EXT4_BLOCKS_PER_GROUP(sb)));
         db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) /
                    EXT4_DESC_PER_BLOCK(sb);
-        sbi->s_group_desc = kmalloc(db_count * sizeof(struct buffer_head *),
-                                    GFP_KERNEL);
+        sbi->s_group_desc = ext4_kvmalloc(db_count *
+                                          sizeof(struct buffer_head *),
+                                          GFP_KERNEL);
         if (sbi->s_group_desc == NULL) {
                 ext4_msg(sb, KERN_ERR, "not enough memory");
                 goto failed_mount;
@@ -3783,7 +3784,7 @@ failed_mount3:
 failed_mount2:
         for (i = 0; i < db_count; i++)
                 brelse(sbi->s_group_desc[i]);
-        kfree(sbi->s_group_desc);
+        ext4_kvfree(sbi->s_group_desc);
 failed_mount:
         if (sbi->s_proc) {
                 remove_proc_entry(sb->s_id, ext4_proc_root);