From 307cdb54b80e036978b7b717abcbcfdac0b34e38 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 30 Oct 2019 12:24:58 -0700 Subject: [PATCH] xfs: don't log the inode in xfs_fs_map_blocks if it Even if we are asked for a write layout there is no point in logging the inode unless we actually modified it in some way. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- fs/xfs/xfs_pnfs.c | 42 ++++++++++++++++++------------------------ 1 file changed, 18 insertions(+), 24 deletions(-) diff --git a/fs/xfs/xfs_pnfs.c b/fs/xfs/xfs_pnfs.c index 3634ffff3b07..ada46e9f5ff1 100644 --- a/fs/xfs/xfs_pnfs.c +++ b/fs/xfs/xfs_pnfs.c @@ -150,30 +150,24 @@ xfs_fs_map_blocks( ASSERT(!nimaps || imap.br_startblock != DELAYSTARTBLOCK); - if (write) { - enum xfs_prealloc_flags flags = 0; - - if (!nimaps || imap.br_startblock == HOLESTARTBLOCK) { - /* - * xfs_iomap_write_direct() expects to take ownership of - * the shared ilock. - */ - xfs_ilock(ip, XFS_ILOCK_SHARED); - error = xfs_iomap_write_direct(ip, offset, length, - &imap, nimaps); - if (error) - goto out_unlock; - - /* - * Ensure the next transaction is committed - * synchronously so that the blocks allocated and - * handed out to the client are guaranteed to be - * present even after a server crash. - */ - flags |= XFS_PREALLOC_SET | XFS_PREALLOC_SYNC; - } - - error = xfs_update_prealloc_flags(ip, flags); + if (write && (!nimaps || imap.br_startblock == HOLESTARTBLOCK)) { + /* + * xfs_iomap_write_direct() expects to take ownership of the + * shared ilock. + */ + xfs_ilock(ip, XFS_ILOCK_SHARED); + error = xfs_iomap_write_direct(ip, offset, length, &imap, + nimaps); + if (error) + goto out_unlock; + + /* + * Ensure the next transaction is committed synchronously so + * that the blocks allocated and handed out to the client are + * guaranteed to be present even after a server crash. + */ + error = xfs_update_prealloc_flags(ip, + XFS_PREALLOC_SET | XFS_PREALLOC_SYNC); if (error) goto out_unlock; } -- GitLab