diff options
author | Ingo Molnar <mingo@kernel.org> | 2023-10-03 10:32:25 +0300 |
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committer | Ingo Molnar <mingo@kernel.org> | 2023-10-03 10:32:25 +0300 |
commit | de80193308f43d3ae52cd3561e8ba77cd1437311 (patch) | |
tree | 3960ff42c407370dfd8c114e5b828bdece9cf425 /kernel/events | |
parent | 54aee5f15b83437f23b2b2469bcf21bdd9823916 (diff) | |
parent | 8a749fd1a8720d4619c91c8b6e7528c0a355c0aa (diff) | |
download | linux-de80193308f43d3ae52cd3561e8ba77cd1437311.tar.xz |
Merge tag 'v6.6-rc4' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/events')
-rw-r--r-- | kernel/events/core.c | 33 | ||||
-rw-r--r-- | kernel/events/hw_breakpoint.c | 28 | ||||
-rw-r--r-- | kernel/events/uprobes.c | 2 |
3 files changed, 12 insertions, 51 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index 93015cb64d4e..4c72a41f11af 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -8631,7 +8631,7 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event) unsigned int size; char tmp[16]; char *buf = NULL; - char *name; + char *name = NULL; if (vma->vm_flags & VM_READ) prot |= PROT_READ; @@ -8678,29 +8678,18 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event) goto got_name; } else { - if (vma->vm_ops && vma->vm_ops->name) { + if (vma->vm_ops && vma->vm_ops->name) name = (char *) vma->vm_ops->name(vma); - if (name) - goto cpy_name; + if (!name) + name = (char *)arch_vma_name(vma); + if (!name) { + if (vma_is_initial_heap(vma)) + name = "[heap]"; + else if (vma_is_initial_stack(vma)) + name = "[stack]"; + else + name = "//anon"; } - - name = (char *)arch_vma_name(vma); - if (name) - goto cpy_name; - - if (vma->vm_start <= vma->vm_mm->start_brk && - vma->vm_end >= vma->vm_mm->brk) { - name = "[heap]"; - goto cpy_name; - } - if (vma->vm_start <= vma->vm_mm->start_stack && - vma->vm_end >= vma->vm_mm->start_stack) { - name = "[stack]"; - goto cpy_name; - } - - name = "//anon"; - goto cpy_name; } cpy_name: diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c index c3797701339c..6c2cb4e4f48d 100644 --- a/kernel/events/hw_breakpoint.c +++ b/kernel/events/hw_breakpoint.c @@ -523,26 +523,6 @@ toggle_bp_slot(struct perf_event *bp, bool enable, enum bp_type_idx type, int we return 0; } -__weak int arch_reserve_bp_slot(struct perf_event *bp) -{ - return 0; -} - -__weak void arch_release_bp_slot(struct perf_event *bp) -{ -} - -/* - * Function to perform processor-specific cleanup during unregistration - */ -__weak void arch_unregister_hw_breakpoint(struct perf_event *bp) -{ - /* - * A weak stub function here for those archs that don't define - * it inside arch/.../kernel/hw_breakpoint.c - */ -} - /* * Constraints to check before allowing this new breakpoint counter. * @@ -594,7 +574,6 @@ static int __reserve_bp_slot(struct perf_event *bp, u64 bp_type) enum bp_type_idx type; int max_pinned_slots; int weight; - int ret; /* We couldn't initialize breakpoint constraints on boot */ if (!constraints_initialized) @@ -613,10 +592,6 @@ static int __reserve_bp_slot(struct perf_event *bp, u64 bp_type) if (max_pinned_slots > hw_breakpoint_slots_cached(type)) return -ENOSPC; - ret = arch_reserve_bp_slot(bp); - if (ret) - return ret; - return toggle_bp_slot(bp, true, type, weight); } @@ -634,8 +609,6 @@ static void __release_bp_slot(struct perf_event *bp, u64 bp_type) enum bp_type_idx type; int weight; - arch_release_bp_slot(bp); - type = find_slot_idx(bp_type); weight = hw_breakpoint_weight(bp); WARN_ON(toggle_bp_slot(bp, false, type, weight)); @@ -645,7 +618,6 @@ void release_bp_slot(struct perf_event *bp) { struct mutex *mtx = bp_constraints_lock(bp); - arch_unregister_hw_breakpoint(bp); __release_bp_slot(bp, bp->attr.bp_type); bp_constraints_unlock(mtx); } diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index f0ac5b874919..3048589e2e85 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -193,7 +193,7 @@ static int __replace_page(struct vm_area_struct *vma, unsigned long addr, } flush_cache_page(vma, addr, pte_pfn(ptep_get(pvmw.pte))); - ptep_clear_flush_notify(vma, addr, pvmw.pte); + ptep_clear_flush(vma, addr, pvmw.pte); if (new_page) set_pte_at_notify(mm, addr, pvmw.pte, mk_pte(new_page, vma->vm_page_prot)); |