linux/mm/damon
SeongJae Park 76fd0285b4 mm/damon: hide kernel pointer from tracepoint event
DAMON's virtual address spaces monitoring primitive uses 'struct pid *'
of the target process as its monitoring target id.  The kernel address
is exposed as-is to the user space via the DAMON tracepoint,
'damon_aggregated'.

Though primarily only privileged users are allowed to access that, it
would be better to avoid unnecessarily exposing kernel pointers so.
Because the trace result is only required to be able to distinguish each
target, we aren't need to use the pointer as-is.

This makes the tracepoint to use the index of the target in the
context's targets list as its id in the tracepoint, to hide the kernel
space address.

Link: https://lkml.kernel.org/r/20211229131016.23641-5-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-15 16:30:33 +02:00
..
core-test.h mm/damon/core-test: fix wrong expectations for 'damon_split_regions_of()' 2021-10-28 17:18:55 -07:00
core.c mm/damon: hide kernel pointer from tracepoint event 2022-01-15 16:30:33 +02:00
dbgfs-test.h mm/damon: fix a few spelling mistakes in comments and a pr_debug message 2021-11-06 13:30:46 -07:00
dbgfs.c mm/damon/dbgfs: remove an unnecessary variable 2022-01-15 16:30:33 +02:00
Kconfig mm/damon: introduce DAMON-based Reclamation (DAMON_RECLAIM) 2021-11-06 13:30:46 -07:00
Makefile mm/damon: introduce DAMON-based Reclamation (DAMON_RECLAIM) 2021-11-06 13:30:46 -07:00
paddr.c mm/damon/schemes: account scheme actions that successfully applied 2022-01-15 16:30:32 +02:00
prmtv-common.c mm/damon/vaddr,paddr: support pageout prioritization 2021-11-06 13:30:45 -07:00
prmtv-common.h mm/damon: move damon_rand() definition into damon.h 2022-01-15 16:30:32 +02:00
reclaim.c mm/damon/reclaim: provide reclamation statistics 2022-01-15 16:30:33 +02:00
vaddr-test.h mm/damon/vaddr-test: remove unnecessary variables 2021-12-10 17:10:56 -08:00
vaddr.c mm/damon/vaddr: hide kernel pointer from damon_va_three_regions() failure log 2022-01-15 16:30:33 +02:00