From fb951eb5e167de9f07973ce0dfff674a2019bfab Mon Sep 17 00:00:00 2001 From: Zongxun Wang Date: Thu, 6 Feb 2014 12:04:20 -0800 Subject: ocfs2: free allocated clusters if error occurs after ocfs2_claim_clusters Even if using the same jbd2 handle, we cannot rollback a transaction. So once some error occurs after successfully allocating clusters, the allocated clusters will never be used and it means they are lost. For example, call ocfs2_claim_clusters successfully when expanding a file, but failed in ocfs2_insert_extent. So we need free the allocated clusters if they are not used indeed. Signed-off-by: Zongxun Wang Signed-off-by: Joseph Qi Acked-by: Joel Becker Cc: Mark Fasheh Cc: Li Zefan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ocfs2/localalloc.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'fs/ocfs2/localalloc.h') diff --git a/fs/ocfs2/localalloc.h b/fs/ocfs2/localalloc.h index 1be9b586446..44a7d1fb2de 100644 --- a/fs/ocfs2/localalloc.h +++ b/fs/ocfs2/localalloc.h @@ -55,6 +55,12 @@ int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb, u32 *bit_off, u32 *num_bits); +int ocfs2_free_local_alloc_bits(struct ocfs2_super *osb, + handle_t *handle, + struct ocfs2_alloc_context *ac, + u32 bit_off, + u32 num_bits); + void ocfs2_local_alloc_seen_free_bits(struct ocfs2_super *osb, unsigned int num_clusters); void ocfs2_la_enable_worker(struct work_struct *work); -- cgit v1.2.3-70-g09d2