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From: Chris Mason <mason@suse.com>
To: viro@math.psu.edu, alan@redhat.com
Cc: linux-kernel@vger.kernel.org
Subject: generic_file_write change in 2.4.0-ac8
Date: Fri, 12 Jan 2001 15:26:32 -0500	[thread overview]
Message-ID: <30380000.979331192@tiny> (raw)


Hi guys,

This code for generic_file_write calls vmtruncate without i_sem held.  Is
that intentional?  It should cause problems for reiserfs at least...

-chris

diff -u --new-file --recursive --exclude-from /usr/src/exclude
linux-2.4.0/mm/filemap.c linux.ac/mm/filemap.c
--- linux-2.4.0/mm/filemap.c	Wed Jan  3 02:59:45 2001
+++ linux.ac/mm/filemap.c	Thu Jan 11 17:26:55 2001
@@ -2578,6 +2625,13 @@
 	ClearPageUptodate(page);
 	kunmap(page);
 	goto unlock;
+sync_failure:
+	UnlockPage(page);
+	deactivate_page(page);
+	page_cache_release(page);
+	if (pos + bytes > inode->i_size)
+		vmtruncate(inode, inode->i_size);
+	goto done;
 }

 

-
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             reply	other threads:[~2001-01-12 20:27 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-01-12 20:26 Chris Mason [this message]
2001-01-12 21:30 ` generic_file_write change in 2.4.0-ac8 Alexander Viro
2001-01-12 21:52   ` Chris Mason

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