From 459aaebc3784a92d96b0208e2622dedeff585f06 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 6 Apr 2009 18:48:30 +0200 Subject: [PATCH] xfs: flush delayed allcoation blocks on ENOSPC in create If we are creating lots of small files, we can fail to get a reservation for inode create earlier than we should due to EOF preallocation done during delayed allocation reservation. Hence on the first reservation ENOSPC failure flush all the delayed allocation blocks out of the system and retry. This fixes the last commonly triggered spurious ENOSPC issue that has been reported. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig --- fs/xfs/xfs_vnodeops.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index 7394c7af5de5a..19cf90a9c7628 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -1457,6 +1457,13 @@ xfs_create( error = xfs_trans_reserve(tp, resblks, log_res, 0, XFS_TRANS_PERM_LOG_RES, log_count); if (error == ENOSPC) { + /* flush outstanding delalloc blocks and retry */ + xfs_flush_inodes(dp); + error = xfs_trans_reserve(tp, resblks, XFS_CREATE_LOG_RES(mp), 0, + XFS_TRANS_PERM_LOG_RES, XFS_CREATE_LOG_COUNT); + } + if (error == ENOSPC) { + /* No space at all so try a "no-allocation" reservation */ resblks = 0; error = xfs_trans_reserve(tp, 0, log_res, 0, XFS_TRANS_PERM_LOG_RES, log_count); -- 2.39.5