Re: [PATCH v2 4/6] Update the maple tree help info for tree cmd

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On Mon, Nov 7, 2022 at 3:53 PM HAGIO KAZUHITO(萩尾 一仁) <k-hagio-ab@xxxxxxx> wrote:
>
> On 2022/10/25 21:38, Tao Liu wrote:
> > Signed-off-by: Tao Liu <ltao@xxxxxxxxxx>
> > ---
> >   help.c | 45 +++++++++++++++++++++++----------------------
> >   1 file changed, 23 insertions(+), 22 deletions(-)
> >
> > diff --git a/help.c b/help.c
> > index 99214c1..fbe8a04 100644
> > --- a/help.c
> > +++ b/help.c
> > @@ -6306,19 +6306,19 @@ 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_root, xarray or rb_root",
>
> These should be a struct name in the kernel, so "maple_tree".
>
> > +"             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 +6347,26 @@ 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 tree, the index, the height, and the slot index values are",
>
> Plural "maple trees".
>
> > +"             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_root, xarray or rb_root",
> > +"             structure, or the address of a structure containing the radix_tree_root,",
> > +"             maple_tree_root, xarray or rb_root structure; if the latter, then",
>
> Ditto, "maple_tree"
>
> (Please take care not to be over 80 chars in an output line.)
>
> > +"             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_tree_node, xa_node or rb_node",
> > +"             structure, bypassing the radix_tree_root, maple_tree_root, xarray,",
> > +"             or rb_root that points to it.",
>
> Ditto, "maple_node" and "maple_tree".
>
Thanks, all get fixed in v3.

Thanks,
Tao Liu

>
> The patch 5/6 and 6/6 look good to me.
>
> Thanks,
> Kazu

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