From 2621384c29039ada4011278c7ff37399e0834f69 Mon Sep 17 00:00:00 2001
From: johann <johann>
Date: Fri, 14 Sep 2007 12:57:01 +0000
Subject: [PATCH] Branch b1_6 b=13181 i=alex i=nikita
Don't take the BKL in fsfilt_ext3_setattr() for 2.6 kernels.
It causes scheduling issues when removing large files.
---
lustre/ChangeLog | 8 ++++++++
lustre/lvfs/fsfilt_ext3.c | 4 ++--
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/lustre/ChangeLog b/lustre/ChangeLog
index b684804e68..04f281c5e6 100644
--- a/lustre/ChangeLog
+++ b/lustre/ChangeLog
@@ -49,6 +49,14 @@ Bugzilla : 13596
Description: MDS hang after unclean shutdown of lots of clients
Details : Never resend AST requests.
+Severity : normal
+Frequency : when removing large files
+Bugzilla : 13181
+Description: scheduling issue during removal of large Lustre files
+Details : Don't take the BKL in fsfilt_ext3_setattr() for 2.6 kernels.
+ It causes scheduling issues when removing large files (17TB in the
+ present case).
+
--------------------------------------------------------------------------------
2007-09-27 Cluster File Systems, Inc. <info@clusterfs.com>
diff --git a/lustre/lvfs/fsfilt_ext3.c b/lustre/lvfs/fsfilt_ext3.c
index 1e2908bc15..6737ed4aaa 100644
--- a/lustre/lvfs/fsfilt_ext3.c
+++ b/lustre/lvfs/fsfilt_ext3.c
@@ -521,7 +521,7 @@ static int fsfilt_ext3_setattr(struct dentry *dentry, void *handle,
struct inode *inode = dentry->d_inode;
int rc = 0;
- lock_kernel();
+ lock_24kernel();
/* Avoid marking the inode dirty on the superblock list unnecessarily.
* We are already writing the inode to disk as part of this
@@ -573,7 +573,7 @@ static int fsfilt_ext3_setattr(struct dentry *dentry, void *handle,
}
out:
- unlock_kernel();
+ unlock_24kernel();
RETURN(rc);
}
--
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