commit 2533a2107785d6cf4df1a7f3a951af8b1b8271e3
Author: Erez Zadok <[EMAIL PROTECTED]>
Date: Tue Dec 25 17:03:29 2007 -0500
Unionfs: use locking around i_size_write in 32-bit systems
CC: Hugh Dickins <[EMAIL PROTECTED]>
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
diff --git a/fs/unionfs/super.c b/fs/unionfs/super.c
index 4902af6..99ec8d2 100644
--- a/fs/unionfs/super.c
+++ b/fs/unionfs/super.c
@@ -69,7 +69,13 @@ static void unionfs_read_inode(struct inode *inode)
*/
static void unionfs_delete_inode(struct inode *inode)
{
+#if BITS_PER_LONG == 32 && defined(CONFIG_SMP)
+ spin_lock(&inode->i_lock);
+#endif
i_size_write(inode, 0); /* every f/s seems to do that */
+#if BITS_PER_LONG == 32 && defined(CONFIG_SMP)
+ spin_unlock(&inode->i_lock);
+#endif
if (inode->i_data.nrpages)
truncate_inode_pages(&inode->i_data, 0);
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