From 2c08c981c3467466fa9d6f7456870149485e6800 Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Mon, 29 Jul 2024 16:23:19 -0700 Subject: [PATCH] libxfs: create attr log item opcodes and formats for parent pointers Update xfs_attr_defer_add to use the pptr-specific opcodes if it's reading or writing parent pointers. Signed-off-by: Darrick J. Wong Reviewed-by: Christoph Hellwig --- libxfs/defer_item.c | 52 +++++++++++++++++++++++++++++++++++++++------ 1 file changed, 46 insertions(+), 6 deletions(-) diff --git a/libxfs/defer_item.c b/libxfs/defer_item.c index 9955e189d..8cdf57eac 100644 --- a/libxfs/defer_item.c +++ b/libxfs/defer_item.c @@ -676,21 +676,61 @@ xfs_attr_defer_add( enum xfs_attr_defer_op op) { struct xfs_attr_intent *new; + unsigned int log_op = 0; + bool is_pptr = args->attr_filter & XFS_ATTR_PARENT; + + if (is_pptr) { + ASSERT(xfs_has_parent(args->dp->i_mount)); + ASSERT((args->attr_filter & ~XFS_ATTR_PARENT) != 0); + ASSERT(args->op_flags & XFS_DA_OP_LOGGED); + ASSERT(args->valuelen == sizeof(struct xfs_parent_rec)); + } - new = kmem_cache_zalloc(xfs_attr_intent_cache, GFP_NOFS | __GFP_NOFAIL); + new = kmem_cache_zalloc(xfs_attr_intent_cache, + GFP_NOFS | __GFP_NOFAIL); new->xattri_da_args = args; + /* Compute log operation from the higher level op and namespace. */ switch (op) { case XFS_ATTR_DEFER_SET: - new->xattri_op_flags = XFS_ATTRI_OP_FLAGS_SET; - new->xattri_dela_state = xfs_attr_init_add_state(args); + if (is_pptr) + log_op = XFS_ATTRI_OP_FLAGS_PPTR_SET; + else + log_op = XFS_ATTRI_OP_FLAGS_SET; break; case XFS_ATTR_DEFER_REPLACE: - new->xattri_op_flags = XFS_ATTRI_OP_FLAGS_REPLACE; - new->xattri_dela_state = xfs_attr_init_replace_state(args); + if (is_pptr) + log_op = XFS_ATTRI_OP_FLAGS_PPTR_REPLACE; + else + log_op = XFS_ATTRI_OP_FLAGS_REPLACE; break; case XFS_ATTR_DEFER_REMOVE: - new->xattri_op_flags = XFS_ATTRI_OP_FLAGS_REMOVE; + if (is_pptr) + log_op = XFS_ATTRI_OP_FLAGS_PPTR_REMOVE; + else + log_op = XFS_ATTRI_OP_FLAGS_REMOVE; + break; + default: + ASSERT(0); + break; + } + new->xattri_op_flags = log_op; + + /* Set up initial attr operation state. */ + switch (log_op) { + case XFS_ATTRI_OP_FLAGS_PPTR_SET: + case XFS_ATTRI_OP_FLAGS_SET: + new->xattri_dela_state = xfs_attr_init_add_state(args); + break; + case XFS_ATTRI_OP_FLAGS_PPTR_REPLACE: + ASSERT(args->new_valuelen == args->valuelen); + new->xattri_dela_state = xfs_attr_init_replace_state(args); + break; + case XFS_ATTRI_OP_FLAGS_REPLACE: + new->xattri_dela_state = xfs_attr_init_replace_state(args); + break; + case XFS_ATTRI_OP_FLAGS_PPTR_REMOVE: + case XFS_ATTRI_OP_FLAGS_REMOVE: new->xattri_dela_state = xfs_attr_init_remove_state(args); break; } -- 2.39.5