Messages in this thread Patch in this message | | | From | Will Deacon <> | Subject | [PATCH v2 3/4] swiotlb: Emit diagnostic in swiotlb_exit() | Date | Tue, 20 Jul 2021 14:38:25 +0100 |
| |
A recent debugging session would have been made a little bit easier if we had noticed sooner that swiotlb_exit() was being called during boot.
Add a simple diagnostic message to swiotlb_exit() to complement the one from swiotlb_print_info() during initialisation.
Cc: Claire Chang <tientzu@chromium.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/20210705190352.GA19461@willie-the-truck Suggested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Tested-by: Nathan Chancellor <nathan@kernel.org> Tested-by: Claire Chang <tientzu@chromium.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Will Deacon <will@kernel.org> --- kernel/dma/swiotlb.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index 7948f274f9bb..b3c793ed9e64 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -334,6 +334,7 @@ void __init swiotlb_exit(void) if (!mem->nslabs) return; + pr_info("tearing down default memory pool\n"); size = array_size(sizeof(*mem->slots), mem->nslabs); if (mem->late_alloc) free_pages((unsigned long)mem->slots, get_order(size)); -- 2.32.0.402.g57bb445576-goog
| |