ext4: remove unaligned AIO warning printk

Although I put this in, I now think it was a bad decision.  For most
users, there is very little to be done in this case.  They get the
message, once per day, with no real context or proposed action.  TBH,
it generates support calls when it probably does not need to; the
message sounds more dire than the situation really is.

Just nuke it.  Normal investigation via blktrace or whatnot can
reveal poor IO patterns if bad performance is encountered.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index b64a60bf105a0c884c104b251ba59a6e0ef93d1b..1c0aad7db1ec13268e57fa789ec961f118b0d346 100644 (file)
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -108,14 +108,6 @@ ext4_file_dio_write(struct kiocb *iocb, const struct iovec *iov,
 
        /* Unaligned direct AIO must be serialized; see comment above */
        if (unaligned_aio) {
-               static unsigned long unaligned_warn_time;
-
-               /* Warn about this once per day */
-               if (printk_timed_ratelimit(&unaligned_warn_time, 60*60*24*HZ))
-                       ext4_msg(inode->i_sb, KERN_WARNING,
-                                "Unaligned AIO/DIO on inode %ld by %s; "
-                                "performance will be poor.",
-                                inode->i_ino, current->comm);
                mutex_lock(ext4_aio_mutex(inode));
                ext4_unwritten_wait(inode);
        }