From: Sunil Mushran <sunil.mushran@oracle.com>
Date: Mon, 15 Aug 2011 20:49:11 +0000 (-0700)
Subject: ocfs2/trivial: Print message indicating unaligned aio+dio write
X-Git-Tag: v4.1.12-92~325^2~6
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=0596d92ba6f7ea450b4deb2eb65ea42aa3ee11ad;p=users%2Fjedix%2Flinux-maple.git

ocfs2/trivial: Print message indicating unaligned aio+dio write

Print a message indicating unaligned aio+dio writes. It prints a message
once per 24 hrs.

Orabug: 17342255

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Srinivas Eeda <srinivas.eeda@oracle.com>
(cherry picked from commit dd146cf4c67bfce3a1fe1495c2f68d149d1c6db0)
---

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index d8b670cbd909..e6e174649974 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2358,6 +2358,14 @@ relock:
 	}
 
 	if (unaligned_dio) {
+		static unsigned long unaligned_warn_time;
+
+		/* Warn about this once per day */
+		if (printk_timed_ratelimit(&unaligned_warn_time, 60*60*24*HZ))
+			printk(KERN_NOTICE "ocfs2: Unaligned AIO/DIO on inode "
+			       "%lld on device %s by %s\n",
+				(unsigned long long)OCFS2_I(inode)->ip_blkno,
+				inode->i_sb->s_id, current->comm);
 		/*
 		 * Wait on previous unaligned aio to complete before
 		 * proceeding.