From: David Chinner Date: Thu, 10 Apr 2008 02:21:46 +0000 (+1000) Subject: [XFS] Warn if errors come from block_truncate_page(). X-Git-Tag: v2.6.26-rc1~1147^2~26 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d87dd6360dce86cad9099aed74f14b4dd0143301;p=linux-2.6 [XFS] Warn if errors come from block_truncate_page(). block_truncate_page() can return errors that we currently ignore and silently discard. We should not ever get errors reported here - an error indicates a bug somewhere else. Hence catch the error and issue a stack dump to the syslog because we cannot propagate the error any further up the call chain. SGI-PV: 980084 SGI-Modid: xfs-linux-melb:xfs-kern:30800a Signed-off-by: David Chinner Signed-off-by: Niv Sardi Signed-off-by: Lachlan McIlroy --- diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c index 53f8feb28e..41e7baabfd 100644 --- a/fs/xfs/linux-2.6/xfs_iops.c +++ b/fs/xfs/linux-2.6/xfs_iops.c @@ -692,11 +692,19 @@ xfs_vn_setattr( return -error; } +/* + * block_truncate_page can return an error, but we can't propagate it + * at all here. Leave a complaint + stack trace in the syslog because + * this could be bad. If it is bad, we need to propagate the error further. + */ STATIC void xfs_vn_truncate( struct inode *inode) { - block_truncate_page(inode->i_mapping, inode->i_size, xfs_get_blocks); + int error; + error = block_truncate_page(inode->i_mapping, inode->i_size, + xfs_get_blocks); + WARN_ON(error); } STATIC int