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| author | Ingo Molnar <mingo@kernel.org> | 2026-04-02 15:03:51 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2026-04-02 15:04:09 +0200 |
| commit | 9853914c08e00d2ccbffbceaaada5ad7c6e4db4c (patch) | |
| tree | 2e01e853871112c32a9cc446479459f1ecb9948d /kernel/dma/debug.c | |
| parent | 265439eb88fda0bf77821e10aafed22cdd450f9d (diff) | |
| parent | e08d007f9d813616ce7093600bc4fdb9c9d81d89 (diff) | |
| download | lwn-9853914c08e00d2ccbffbceaaada5ad7c6e4db4c.tar.gz lwn-9853914c08e00d2ccbffbceaaada5ad7c6e4db4c.zip | |
Merge branch 'sched/urgent' into sched/core, to resolve conflicts
The following fix in sched/urgent:
e08d007f9d81 ("sched/debug: Fix avg_vruntime() usage")
is in conflict with this pending commit in sched/core:
4823725d9d1d ("sched/fair: Increase weight bits for avg_vruntime")
Both modify the same variable definition and initialization blocks,
resolve it by merging the two.
Conflicts:
kernel/sched/debug.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/dma/debug.c')
| -rw-r--r-- | kernel/dma/debug.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c index 86f87e43438c..0677918f06a8 100644 --- a/kernel/dma/debug.c +++ b/kernel/dma/debug.c @@ -453,7 +453,7 @@ static int active_cacheline_set_overlap(phys_addr_t cln, int overlap) return overlap; } -static void active_cacheline_inc_overlap(phys_addr_t cln) +static void active_cacheline_inc_overlap(phys_addr_t cln, bool is_cache_clean) { int overlap = active_cacheline_read_overlap(cln); @@ -462,7 +462,7 @@ static void active_cacheline_inc_overlap(phys_addr_t cln) /* If we overflowed the overlap counter then we're potentially * leaking dma-mappings. */ - WARN_ONCE(overlap > ACTIVE_CACHELINE_MAX_OVERLAP, + WARN_ONCE(!is_cache_clean && overlap > ACTIVE_CACHELINE_MAX_OVERLAP, pr_fmt("exceeded %d overlapping mappings of cacheline %pa\n"), ACTIVE_CACHELINE_MAX_OVERLAP, &cln); } @@ -495,7 +495,7 @@ static int active_cacheline_insert(struct dma_debug_entry *entry, if (rc == -EEXIST) { struct dma_debug_entry *existing; - active_cacheline_inc_overlap(cln); + active_cacheline_inc_overlap(cln, entry->is_cache_clean); existing = radix_tree_lookup(&dma_active_cacheline, cln); /* A lookup failure here after we got -EEXIST is unexpected. */ WARN_ON(!existing); @@ -601,7 +601,8 @@ static void add_dma_entry(struct dma_debug_entry *entry, unsigned long attrs) unsigned long flags; int rc; - entry->is_cache_clean = !!(attrs & DMA_ATTR_CPU_CACHE_CLEAN); + entry->is_cache_clean = attrs & (DMA_ATTR_DEBUGGING_IGNORE_CACHELINES | + DMA_ATTR_REQUIRE_COHERENT); bucket = get_hash_bucket(entry, &flags); hash_bucket_add(bucket, entry); |