ext4: suppress verbose debugging information if malloc-debug is off

If CONFIG_EXT4_DEBUG is enabled, then if a block allocation fails due
to disk being full, a verbose debugging message is printed, even if
the malloc-debug switch has not been enabled.  Suppress the debugging
message so that nothing is printed unless malloc-debug has been turned
on.

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

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 66bee7274d6..2f6f0dd08fc 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3912,7 +3912,8 @@ static void ext4_mb_show_ac(struct ext4_allocation_context *ac)
         struct super_block *sb = ac->ac_sb;
         ext4_group_t ngroups, i;
 
-        if (EXT4_SB(sb)->s_mount_flags & EXT4_MF_FS_ABORTED)
+        if (!mb_enable_debug ||
+            (EXT4_SB(sb)->s_mount_flags & EXT4_MF_FS_ABORTED))
                 return;
 
         printk(KERN_ERR "EXT4-fs: Can't allocate:"