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| author |   SeongJae Park <sj@kernel.org> | 2022-01-14 14:10:47 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-15 16:30:33 +0200 |
| commit | 962fe7a6b1b2f9deb1b31b3344afa3b11afdf7ab (patch) | |
| tree | a2010d80ce1cc4e351121aaee92acb700b03b370 /mm/damon | |
| parent | mm/damon/vaddr: use pr_debug() for damon_va_three_regions() failure logging (diff) | |
| download | linux-dev-962fe7a6b1b2f9deb1b31b3344afa3b11afdf7ab.tar.xz linux-dev-962fe7a6b1b2f9deb1b31b3344afa3b11afdf7ab.zip | |
mm/damon/vaddr: hide kernel pointer from damon_va_three_regions() failure log
The failure log message for 'damon_va_three_regions()' prints the target
id, which is a 'struct pid' pointer in the case. To avoid exposing the
kernel pointer via the log, this makes the log to use the index of the
target in the context's targets list instead.
Link: https://lkml.kernel.org/r/20211229131016.23641-4-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>
Diffstat (limited to 'mm/damon')
| -rw-r--r-- | mm/damon/vaddr.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c index 223829655d64..89b6468da2b9 100644 --- a/mm/damon/vaddr.c +++ b/mm/damon/vaddr.c @@ -232,13 +232,19 @@ static int damon_va_three_regions(struct damon_target *t, static void __damon_va_init_regions(struct damon_ctx *ctx, struct damon_target *t) { + struct damon_target *ti; struct damon_region *r; struct damon_addr_range regions[3]; unsigned long sz = 0, nr_pieces; - int i; + int i, tidx = 0; if (damon_va_three_regions(t, regions)) { - pr_debug("Failed to get three regions of target %lu\n", t->id); + damon_for_each_target(ti, ctx) { + if (ti == t) + break; + tidx++; + } + pr_debug("Failed to get three regions of %dth target\n", tidx); return; } |