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Avoid waiting for pending dma invoke in spinlock

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Currently, spinlock is acquired and wait state
is entered for dma_invoke to complete. This scenario
leads to watchdog bark for threads waiting to acquire
spinlock. This change is to avoid waiting for dma_invoke
completion after acquiring spinlock.

Change-Id: I9443fd8bfda77194103a871e4ad0295f79cf3034
Signed-off-by: Ansa Ahmed <quic_ansa@quicinc.com>
This commit is contained in:
Ansa Ahmed
2023-05-24 16:24:16 +05:30
committed by Gerrit - the friendly Code Review server
parent 9151ca9fdd
commit 7da4c92f79
1 changed files with 11 additions and 2 deletions
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13
dsp/adsprpc.c
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@@ -5782,8 +5782,17 @@ static int fastrpc_file_free(struct fastrpc_file *fl)
spin_lock_irqsave(&fl->apps->hlock, irq_flags);
is_locked = true;
if (fl->is_dma_invoke_pend)
wait_for_completion(&fl->dma_invoke);
if (!fl->is_dma_invoke_pend)
goto skip_dmainvoke_wait;
is_locked = false;
spin_unlock_irqrestore(&fl->apps->hlock, irq_flags);
wait_for_completion(&fl->dma_invoke);
skip_dmainvoke_wait:
if (!is_locked) {
spin_lock_irqsave(&fl->apps->hlock, irq_flags);
is_locked = true;
}
if (!fl->is_ramdump_pend)
goto skip_dump_wait;
is_locked = false;