This is a note to let you know that I've just added the patch titled
ext4: call sync_blockdev() before invalidate_bdev() in put_super()
to the 4.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ext4-call-sync_blockdev-before-invalidate_bdev-in-put_super.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 89d96a6f8e6491f24fc8f99fd6ae66820e85c6c1 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@xxxxxxx>
Date: Sat, 20 Jun 2015 22:50:33 -0400
Subject: ext4: call sync_blockdev() before invalidate_bdev() in put_super()
From: Theodore Ts'o <tytso@xxxxxxx>
commit 89d96a6f8e6491f24fc8f99fd6ae66820e85c6c1 upstream.
Normally all of the buffers will have been forced out to disk before
we call invalidate_bdev(), but there will be some cases, where a file
system operation was aborted due to an ext4_error(), where there may
still be some dirty buffers in the buffer cache for the device. So
try to force them out to memory before calling invalidate_bdev().
This fixes a warning triggered by generic/081:
WARNING: CPU: 1 PID: 3473 at /usr/projects/linux/ext4/fs/block_dev.c:56 __blkdev_put+0xb5/0x16f()
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/ext4/super.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -807,6 +807,7 @@ static void ext4_put_super(struct super_
dump_orphan_list(sb, sbi);
J_ASSERT(list_empty(&sbi->s_orphan));
+ sync_blockdev(sb->s_bdev);
invalidate_bdev(sb->s_bdev);
if (sbi->journal_bdev && sbi->journal_bdev != sb->s_bdev) {
/*
Patches currently in stable-queue which might be from tytso@xxxxxxx are
queue-4.1/ext4-correctly-migrate-a-file-with-a-hole-at-the-beginning.patch
queue-4.1/ext4-set-lazytime-on-remount-if-ms_lazytime-is-set-by-mount.patch
queue-4.1/jbd2-fix-ocfs2-corrupt-when-updating-journal-superblock-fails.patch
queue-4.1/ext4-be-more-strict-when-migrating-to-non-extent-based-file.patch
queue-4.1/jbd2-use-gfp_nofs-in-jbd2_cleanup_journal_tail.patch
queue-4.1/ext4-fix-fencepost-error-in-lazytime-optimization.patch
queue-4.1/ext4-replace-open-coded-nofail-allocation-in-ext4_free_blocks.patch
queue-4.1/ext4-don-t-retry-file-block-mapping-on-bigalloc-fs-with-non-extent-file.patch
queue-4.1/bufferhead-add-_gfp-version-for-sb_getblk.patch
queue-4.1/ext4-avoid-deadlocks-in-the-writeback-path-by-using-sb_getblk_gfp.patch
queue-4.1/ext4-call-sync_blockdev-before-invalidate_bdev-in-put_super.patch
queue-4.1/ext4-fix-race-between-truncate-and-__ext4_journalled_writepage.patch
queue-4.1/ext4-fix-reservation-release-on-invalidatepage-for-delalloc-fs.patch
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