On Tue, Dec 6, 2022 at 4:40 PM <crash-utility-request(a)redhat.com&gt; wrote: > Date: Tue, 6 Dec 2022 16:40:21 +0800 > From: Tao Liu <ltao(a)redhat.com&gt; > To: crash-utility(a)redhat.com > Subject: [Crash-utility] [PATCH v3 5/6] Update the maple tree help > info for tree cmd > Message-ID: <20221206084022.58693-6-ltao(a)redhat.com&gt; > Content-Type: text/plain; charset="US-ASCII"; x-default=true > > Signed-off-by: Tao Liu <ltao(a)redhat.com&gt; > --- > help.c | 46 ++++++++++++++++++++++++---------------------- > 1 file changed, 24 insertions(+), 22 deletions(-) > > diff --git a/help.c b/help.c > index 99214c1..f764d08 100644 > --- a/help.c > +++ b/help.c > @@ -6306,19 +6306,20 @@ NULL > > char *help_tree[] = { > "tree", > -"display radix tree, XArray or red-black tree", > -"[-t [radix|xarray|rbtree]] [-r offset] [-[s|S] struct[.member[,member]]]\n -[x|d] [-o offset] [-l] [-p] [-N] start", > -" This command dumps the contents of a radix tree, an XAarray, or a red-black", > -" tree. The arguments are as follows:\n", > +"display radix tree, XArray, red-black tree or maple tree", > +"[-t [radix|xarray|rbtree|maple]] [-r offset] [-[s|S] struct[.member[,member]]]\n" > +" -[x|d] [-o offset] [-l] [-p] [-v] [-N] start", > +" This command dumps the contents of a radix tree, an XAarray, a red-black", > +" tree, or a maple tree. The arguments are as follows:\n", > " -t type The type of tree to dump; the type string can be one of ", > -" \"radix\", \"rbtree\", or \"xarray\", or alternatively, \"ra\",", > -" \"rb\" or \"x\" are acceptable. If not specified, rbtree is the", > -" default type.", > +" \"radix\", \"rbtree\", \"xarray\", or \"maple\", or alternatively,", > +" \"ra\", \"rb\", \"x\" or \"m\" are acceptable. If not specified,", > +" rbtree is the default type.", > " -r offset If the \"start\" argument is the address of a data structure that", > -" contains an radix_tree_root, xarray or rb_root structure, then this", > -" is the offset to that structure member. If the offset is non-zero,", > -" then this option is required. The offset may be entered in either", > -" of two manners:", > +" contains an radix_tree_root, maple_tree, xarray or rb_root", > +" structure, then this is the offset to that structure member. If", > +" the offset is non-zero, then this option is required. The offset", > +" may be entered in either of two manners:", > " 1. In \"structure.member\" format.", > " 2. A number of bytes.", > " -o offset For red-black trees only, the offset of the rb_node within its ", > @@ -6347,25 +6348,26 @@ char *help_tree[] = { > " -p Display the node's position information, showing the relationship", > " between it and the root. For red-black trees, a position that", > " indicates \"root/l/r\" means that the node is the right child", > -" of the left child of the root node. For radix trees and xarrays,", > -" the index, the height, and the slot index values are shown with", > -" respect to the root.", > +" of the left child of the root node. For radix trees, xarrays and", > +" maple trees, the index, the height, and the slot index values are", > +" shown with respect to the root.", > " -x Override default output format with hexadecimal format.", > " -d Override default output format with decimal format.", > +" -v For maple trees only, showing the contents of each maple tree node.", > " ", > " The meaning of the \"start\" argument, which can be expressed either in", > " hexadecimal format or symbolically, depends upon whether the -N option", > " is prepended:", > " ", > -" start The address of a radix_tree_root, xarray or rb_root structure, or", > -" the address of a structure containing the radix_tree_root, xarray", > -" or rb_root structure; if the latter, then the \"-r offset\" option", > -" must be used if the member offset of the root structure is ", > -" non-zero.", > +" start The address of a radix_tree_root, maple_tree, xarray or rb_root", > +" structure, or the address of a structure containing the", > +" radix_tree_root, maple_tree, xarray or rb_root structure; if the", > +" latter, then the \"-r offset\" option must be used if the member", > +" offset of the root structure is non-zero.", > " ", > -" -N start The address of a radix_tree_node, xa_node or rb_node structure,", > -" bypassing the radix_tree_root, xarray, or rb_root that points", > -" to it.", > +" -N start The address of a radix_tree_node, maple_node, xa_node or rb_node", > +" structure, bypassing the radix_tree_root, maple_tree, xarray, or", > +" rb_root that points to it.", > "", > "\nEXAMPLES", > " The vmap_area_root is a standalone rb_root structure. Display the ", Could you please also add a simple example for the maple tree option to the above EXAMPLES section? That looks more helpful. BTW: I noticed that you had put several examples to patch[2] log.

Thanks. Lianbo > -- > 2.33.1