1 files changed, 45 insertions, 0 deletions

diff --git a/recipes-kernel/linux/linux-ti33x-psp-3.2/3.2.17/0024-jbd2-use-GFP_NOFS-for-blkdev_issue_flush.patch b/recipes-kernel/linux/linux-ti33x-psp-3.2/3.2.17/0024-jbd2-use-GFP_NOFS-for-blkdev_issue_flush.patch
new file mode 100644
index 00000000..2c66b9a8
--- /dev/null
+++ b/recipes-kernel/linux/linux-ti33x-psp-3.2/3.2.17/0024-jbd2-use-GFP_NOFS-for-blkdev_issue_flush.patch
@@ -0,0 +1,45 @@
+From 6556e20032c10ba45a6101a9454265c0f8c0fbc6 Mon Sep 17 00:00:00 2001
+From: Shaohua Li <shli@kernel.org>
+Date: Fri, 13 Apr 2012 10:27:35 +0800
+Subject: [PATCH 024/165] jbd2: use GFP_NOFS for blkdev_issue_flush
+
+commit 99aa78466777083255b876293e9e83dec7cd809a upstream.
+
+flush request is issued in transaction commit code path, so looks using
+GFP_KERNEL to allocate memory for flush request bio falls into the classic
+deadlock issue.  I saw btrfs and dm get it right, but ext4, xfs and md are
+using GFP.
+
+Signed-off-by: Shaohua Li <shli@fusionio.com>
+Signed-off-by: Theodore Ts'o <tytso@mit.edu>
+Reviewed-by: Jan Kara <jack@suse.cz>
+Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
+---
+ fs/jbd2/commit.c |    4 ++--
+ 1 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
+index 68d704d..d751f04 100644
+--- a/fs/jbd2/commit.c
++++ b/fs/jbd2/commit.c
+@@ -683,7 +683,7 @@ start_journal_io:
+        if (commit_transaction->t_need_data_flush &&
+            (journal->j_fs_dev != journal->j_dev) &&
+            (journal->j_flags & JBD2_BARRIER))
+-               blkdev_issue_flush(journal->j_fs_dev, GFP_KERNEL, NULL);
++               blkdev_issue_flush(journal->j_fs_dev, GFP_NOFS, NULL);
+ 
+        /* Done it all: now write the commit record asynchronously. */
+        if (JBD2_HAS_INCOMPAT_FEATURE(journal,
+@@ -819,7 +819,7 @@ wait_for_iobuf:
+        if (JBD2_HAS_INCOMPAT_FEATURE(journal,
+                                      JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT) &&
+            journal->j_flags & JBD2_BARRIER) {
+-               blkdev_issue_flush(journal->j_dev, GFP_KERNEL, NULL);
++               blkdev_issue_flush(journal->j_dev, GFP_NOFS, NULL);
+        }
+ 
+        if (err)
+-- 
+1.7.7.6
+