Aneesh Kumar K.V wrote:
On Mon, Aug 24, 2009 at 03:39:24PM -0700, Brian Rogers wrote:
Hi all.
The first time since boot that I run e4defrag on a directory of
significant size, I get this warning in dmesg:
This might be happening when it hits files that don't use extents, but I
haven't tried e4defrag on a single non-extents file to verify that
theory. I've just so far only seen this happen when I defrag a directory
where I get the "operation not supported" message.
If I use chattr +e to migrate a file to use extents, I get this:
[ 470.400044] ------------[ cut here ]------------
[ 470.400065] WARNING: at fs/inode.c:1210 generic_delete_inode+0x65/0x16a()
Can you try this patch
commit 832ecbfe5f3cf16916552759fbeff085992a66c4
Author: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Date: Tue Aug 25 15:14:11 2009 +0530
ext4: unlock the new inode before iput
We need to unlock the new inode before iput. This patch fix the below warning.
[ 470.400044] ------------[ cut here ]------------
[ 470.400065] WARNING: at fs/inode.c:1210 generic_delete_inode+0x65/0x16a()
[ 470.400072] Hardware name: N/A
.....
...
[ 470.400353] Pid: 4451, comm: chattr Not tainted 2.6.31-rc7-red-debug #4
[ 470.400359] Call Trace:
[ 470.400372] [<ffffffff81037771>] warn_slowpath_common+0x77/0x8f
[ 470.400385] [<ffffffff81037798>] warn_slowpath_null+0xf/0x11
[ 470.400395] [<ffffffff810b7f28>] generic_delete_inode+0x65/0x16a
[ 470.400405] [<ffffffff810b8044>] generic_drop_inode+0x17/0x1bd
[ 470.400413] [<ffffffff810b7083>] iput+0x61/0x65
[ 470.400455] [<ffffffffa003b229>] ext4_ext_migrate+0x5eb/0x66a [ext4]
[ 470.400492] [<ffffffffa002b1f8>] ext4_ioctl+0x340/0x756 [ext4]
[ 470.400507] [<ffffffff810b1a91>] vfs_ioctl+0x1d/0x82
[ 470.400517] [<ffffffff810b1ff0>] do_vfs_ioctl+0x483/0x4c9
[ 470.400527] [<ffffffff81059c30>] ? trace_hardirqs_on+0xd/0xf
[ 470.400537] [<ffffffff810b2087>] sys_ioctl+0x51/0x74
[ 470.400549] [<ffffffff8100ba6b>] system_call_fastpath+0x16/0x1b
[ 470.400557] ---[ end trace ab85723542352dac ]---
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 313a50b..05361ad 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -618,7 +618,7 @@ err_out:
tmp_inode->i_nlink = 0;
ext4_journal_stop(handle);
-
+ unlock_new_inode(tmp_inode);
iput(tmp_inode);
return retval;
That fixed the chattr-triggered warning. Thanks!
Brian
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