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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-06-05 08:41:04 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-06-05 08:41:04 +0300 |
| commit | 2076b2a4a6b7e36a33dad178ff6f7c45657b00cc (patch) | |
| tree | f02d8a54bf3b6c27777baa7f9c6a349cbc2bfc56 /lib/debugobjects.c | |
| parent | 49c80922ff8115bc86c82e5fc9e6842cd87db689 (diff) | |
| parent | 9561de3a55bed6bdd44a12820ba81ec416e705a7 (diff) | |
| download | linux-2076b2a4a6b7e36a33dad178ff6f7c45657b00cc.tar.xz | |
Merge 6.4-rc5 into tty-next
We need the tty fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/debugobjects.c')
| -rw-r--r-- | lib/debugobjects.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/lib/debugobjects.c b/lib/debugobjects.c index 003edc5ebd67..984985c39c9b 100644 --- a/lib/debugobjects.c +++ b/lib/debugobjects.c @@ -126,7 +126,7 @@ static const char *obj_states[ODEBUG_STATE_MAX] = { static void fill_pool(void) { - gfp_t gfp = GFP_ATOMIC | __GFP_NORETRY | __GFP_NOWARN; + gfp_t gfp = __GFP_HIGH | __GFP_NOWARN; struct debug_obj *obj; unsigned long flags; @@ -591,10 +591,21 @@ static void debug_objects_fill_pool(void) { /* * On RT enabled kernels the pool refill must happen in preemptible - * context: + * context -- for !RT kernels we rely on the fact that spinlock_t and + * raw_spinlock_t are basically the same type and this lock-type + * inversion works just fine. */ - if (!IS_ENABLED(CONFIG_PREEMPT_RT) || preemptible()) + if (!IS_ENABLED(CONFIG_PREEMPT_RT) || preemptible()) { + /* + * Annotate away the spinlock_t inside raw_spinlock_t warning + * by temporarily raising the wait-type to WAIT_SLEEP, matching + * the preemptible() condition above. + */ + static DEFINE_WAIT_OVERRIDE_MAP(fill_pool_map, LD_WAIT_SLEEP); + lock_map_acquire_try(&fill_pool_map); fill_pool(); + lock_map_release(&fill_pool_map); + } } static void |