From acf3bb007e5636ef4c17505affb0974175108553 Mon Sep 17 00:00:00 2001 From: Tristan Ye Date: Fri, 21 Jan 2011 18:20:18 +0800 Subject: Ocfs2/refcounttree: Fix a bug for refcounttree to writeback clusters in a right number. Current refcounttree codes actually didn't writeback the new pages out in write-back mode, due to a bug of always passing a ZERO number of clusters to 'ocfs2_cow_sync_writeback', the patch tries to pass a proper one in. Signed-off-by: Tristan Ye Cc: stable@kernel.org Signed-off-by: Joel Becker --- fs/ocfs2/refcounttree.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index b5f9160..19ebc5a 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -3228,7 +3228,7 @@ static int ocfs2_make_clusters_writable(struct super_block *sb, u32 num_clusters, unsigned int e_flags) { int ret, delete, index, credits = 0; - u32 new_bit, new_len; + u32 new_bit, new_len, orig_num_clusters; unsigned int set_len; struct ocfs2_super *osb = OCFS2_SB(sb); handle_t *handle; @@ -3261,6 +3261,8 @@ static int ocfs2_make_clusters_writable(struct super_block *sb, goto out; } + orig_num_clusters = num_clusters; + while (num_clusters) { ret = ocfs2_get_refcount_rec(ref_ci, context->ref_root_bh, p_cluster, num_clusters, @@ -3348,7 +3350,8 @@ static int ocfs2_make_clusters_writable(struct super_block *sb, * in write-back mode. */ if (context->get_clusters == ocfs2_di_get_clusters) { - ret = ocfs2_cow_sync_writeback(sb, context, cpos, num_clusters); + ret = ocfs2_cow_sync_writeback(sb, context, cpos, + orig_num_clusters); if (ret) mlog_errno(ret); } -- cgit v1.1