diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2026-02-11 14:32:19 -0800 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2026-02-27 16:40:21 +0100 |
| commit | 28c75fbfec8f024db1278194918e5f6eda4c570f (patch) | |
| tree | 696274c764edcaed15ee5e3373f9db63c649809b /kernel | |
| parent | 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f (diff) | |
perf/core: Pass GFP flags to attach_task_ctx_data()
This is a preparation for the next change to reduce the computational
complexity in the global context data handling for LBR callstacks.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260211223222.3119790-2-namhyung@kernel.org
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/events/core.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index ac70d68217b6..90b0c9324cbf 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -5370,15 +5370,15 @@ static void unaccount_freq_event(void) static struct perf_ctx_data * -alloc_perf_ctx_data(struct kmem_cache *ctx_cache, bool global) +alloc_perf_ctx_data(struct kmem_cache *ctx_cache, bool global, gfp_t gfp_flags) { struct perf_ctx_data *cd; - cd = kzalloc_obj(*cd); + cd = kzalloc_obj(*cd, gfp_flags); if (!cd) return NULL; - cd->data = kmem_cache_zalloc(ctx_cache, GFP_KERNEL); + cd->data = kmem_cache_zalloc(ctx_cache, gfp_flags); if (!cd->data) { kfree(cd); return NULL; @@ -5412,11 +5412,11 @@ static inline void perf_free_ctx_data_rcu(struct perf_ctx_data *cd) static int attach_task_ctx_data(struct task_struct *task, struct kmem_cache *ctx_cache, - bool global) + bool global, gfp_t gfp_flags) { struct perf_ctx_data *cd, *old = NULL; - cd = alloc_perf_ctx_data(ctx_cache, global); + cd = alloc_perf_ctx_data(ctx_cache, global, gfp_flags); if (!cd) return -ENOMEM; @@ -5499,7 +5499,7 @@ again: return 0; alloc: - ret = attach_task_ctx_data(p, ctx_cache, true); + ret = attach_task_ctx_data(p, ctx_cache, true, GFP_KERNEL); put_task_struct(p); if (ret) { __detach_global_ctx_data(); @@ -5519,7 +5519,7 @@ attach_perf_ctx_data(struct perf_event *event) return -ENOMEM; if (task) - return attach_task_ctx_data(task, ctx_cache, false); + return attach_task_ctx_data(task, ctx_cache, false, GFP_KERNEL); ret = attach_global_ctx_data(ctx_cache); if (ret) @@ -9240,7 +9240,7 @@ perf_event_alloc_task_data(struct task_struct *child, return; attach: - attach_task_ctx_data(child, ctx_cache, true); + attach_task_ctx_data(child, ctx_cache, true, GFP_KERNEL); } void perf_event_fork(struct task_struct *task) |