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authorMauro Carvalho Chehab <mchehab@kernel.org>2023-06-04 15:50:38 +0300
committerMauro Carvalho Chehab <mchehab@kernel.org>2023-06-04 15:50:38 +0300
commit899e373ef0b0d3f1c2712a849f019de4f46bfa02 (patch)
treef823db81e141a59085ace0e7268fb89895afa3c2 /lib/debugobjects.c
parent81f3affa19d6ab0c32aef46b053838219eef7e71 (diff)
parent7877cb91f1081754a1487c144d85dc0d2e2e7fc4 (diff)
downloadlinux-899e373ef0b0d3f1c2712a849f019de4f46bfa02.tar.xz
Merge tag 'v6.4-rc4' into v4l_for_linus
Linux 6.4-rc4 * tag 'v6.4-rc4': (606 commits) Linux 6.4-rc4 cxl: Explicitly initialize resources when media is not ready x86: re-introduce support for ERMS copies for user space accesses NVMe: Add MAXIO 1602 to bogus nid list. module: error out early on concurrent load of the same module file x86/topology: Fix erroneous smp_num_siblings on Intel Hybrid platforms cpufreq: amd-pstate: Update policy->cur in amd_pstate_adjust_perf() io_uring: unlock sqd->lock before sq thread release CPU MAINTAINERS: update arm64 Microchip entries udplite: Fix NULL pointer dereference in __sk_mem_raise_allocated(). net: phy: mscc: enable VSC8501/2 RGMII RX clock net: phy: mscc: remove unnecessary phydev locking net: phy: mscc: add support for VSC8501 net: phy: mscc: add VSC8502 to MODULE_DEVICE_TABLE net/handshake: Enable the SNI extension to work properly net/handshake: Unpin sock->file if a handshake is cancelled net/handshake: handshake_genl_notify() shouldn't ignore @flags net/handshake: Fix uninitialized local variable net/handshake: Fix handshake_dup() ref counting net/handshake: Remove unneeded check from handshake_dup() ...
Diffstat (limited to 'lib/debugobjects.c')
-rw-r--r--lib/debugobjects.c17
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