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| author | David Wang <[email protected]> | 2024-12-13 01:33:32 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2024-12-19 03:04:46 +0000 |
| commit | 640a603943a7659340c10044c0a1c98ae4e13189 (patch) | |
| tree | fbe3be6535a01d7f7dd285216a8ccef7db88d521 /tools/net/ynl/pyynl/cli.py | |
| parent | mm/vmstat: fix a W=1 clang compiler warning (diff) | |
| download | kernel-640a603943a7659340c10044c0a1c98ae4e13189.tar.gz kernel-640a603943a7659340c10044c0a1c98ae4e13189.zip | |
mm/codetag: clear tags before swap
When CONFIG_MEM_ALLOC_PROFILING_DEBUG is set, kernel WARN would be
triggered when calling __alloc_tag_ref_set() during swap:
alloc_tag was not cleared (got tag for mm/filemap.c:1951)
WARNING: CPU: 0 PID: 816 at ./include/linux/alloc_tag.h...
Clear code tags before swap can fix the warning. And this patch also fix
a potential invalid address dereference in alloc_tag_add_check() when
CONFIG_MEM_ALLOC_PROFILING_DEBUG is set and ref->ct is CODETAG_EMPTY,
which is defined as ((void *)1).
Link: https://lkml.kernel.org/r/[email protected]
Fixes: 51f43d5d82ed ("mm/codetag: swap tags when migrate pages")
Signed-off-by: David Wang <[email protected]>
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-lkp/[email protected]
Acked-by: Suren Baghdasaryan <[email protected]>
Cc: Kent Overstreet <[email protected]>
Cc: Yu Zhao <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'tools/net/ynl/pyynl/cli.py')
0 files changed, 0 insertions, 0 deletions