AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

dma-debug: make things less spammy under memory pressure

Browse Source 
[ Upstream commit e19f8fa6ce1ca9b8b934ba7d2e8f34c95abc6e60 ]

Limit the error msg to avoid flooding the console.  If you have a lot of
threads hitting this at once, they could have already gotten passed the
dma_debug_disabled() check before they get to the point of allocation
failure, resulting in quite a lot of this error message spamming the
log.  Use pr_err_once() to limit that.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Rob Clark 2022-06-01 07:51:16 -07:00 committed by Greg Kroah-Hartman
parent 1b54c00657
commit d7be05aff2
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
kernel/dma/debug.c
View File

@ -564,7 +564,7 @@ static void add_dma_entry(struct dma_debug_entry *entry)
rc = active_cacheline_insert(entry); rc = active_cacheline_insert(entry);
if (rc == -ENOMEM) { if (rc == -ENOMEM) {
pr_err("cacheline tracking ENOMEM, dma-debug disabled\n"); pr_err_once("cacheline tracking ENOMEM, dma-debug disabled\n");
global_disable = true; global_disable = true;
} }