Re: [PATCH 2/3] mm/slub: Add Support for free path information of an object.

From: Paul E. McKenney
Date: Fri Mar 19 2021 - 19:24:27 EST


On Thu, Mar 18, 2021 at 01:35:37PM +0100, Vlastimil Babka wrote:
> On 3/16/21 11:37 AM, Maninder Singh wrote:
> > Adding support for inforamtion of free path along with allocation
> > path of an object:
> >
> > slab kmalloc-64 start c8ab0140 data offset 64 pointer offset 0 size 64 allocated at meminfo_proc_show+0x40/0x4fc
> > [ 20.192078] meminfo_proc_show+0x40/0x4fc
> > [ 20.192263] seq_read_iter+0x18c/0x4c4
> > [ 20.192430] proc_reg_read_iter+0x84/0xac
> > [ 20.192617] generic_file_splice_read+0xe8/0x17c
> > [ 20.192816] splice_direct_to_actor+0xb8/0x290
> > [ 20.193008] do_splice_direct+0xa0/0xe0
> > [ 20.193185] do_sendfile+0x2d0/0x438
> > [ 20.193345] sys_sendfile64+0x12c/0x140
> > [ 20.193523] ret_fast_syscall+0x0/0x58
> > [ 20.193695] 0xbeeacde4
> > [ 20.193822] Free path:
> > [ 20.193935] meminfo_proc_show+0x5c/0x4fc
> > [ 20.194115] seq_read_iter+0x18c/0x4c4
> > [ 20.194285] proc_reg_read_iter+0x84/0xac
> > [ 20.194475] generic_file_splice_read+0xe8/0x17c
> > [ 20.194685] splice_direct_to_actor+0xb8/0x290
> > [ 20.194870] do_splice_direct+0xa0/0xe0
> > [ 20.195014] do_sendfile+0x2d0/0x438
> > [ 20.195174] sys_sendfile64+0x12c/0x140
> > [ 20.195336] ret_fast_syscall+0x0/0x58
> > [ 20.195491] 0xbeeacde4
> >
> > Co-developed-by: Vaneet Narang <v.narang@xxxxxxxxxxx>
> > Signed-off-by: Vaneet Narang <v.narang@xxxxxxxxxxx>
> > Signed-off-by: Maninder Singh <maninder1.s@xxxxxxxxxxx>
>
> Acked-by: Vlastimil Babka <vbabka@xxxxxxx>

I have queued 1/3 and 2/3, thank you both!

Would any of the ARM folks be willing to ack 3/3?

Thanx, Paul