diff options
| author | Roy Pledge <Roy.Pledge@freescale.com> | 2014-03-31 17:49:28 (GMT) |
|---|---|---|
| committer | Jose Rivera <German.Rivera@freescale.com> | 2014-03-31 23:22:57 (GMT) |
| commit | fa2a36dedaa987e730d5af05b0bed92ab7e7b13c (patch) | |
| tree | d6c6aebe9d971b8c62f969054765fc8116e0de96 /drivers/staging/fsl_qbman/fsl_usdpaa.c | |
| parent | 1877f35001b018bc7ad0f7b8ef41bdea04311b54 (diff) | |
| download | linux-fsl-qoriq-fa2a36dedaa987e730d5af05b0bed92ab7e7b13c.tar.xz | |
Fix USDPAA DMA Mem freespace calculation
The USDPAA DMA freespace calculation should only count
segments with a reference count of zero as free
Signed-off-by: Roy Pledge <Roy.Pledge@freescale.com>
Change-Id: Ib8752f8ad6cb4179b371b6480f47e84033260efe
Reviewed-on: http://git.am.freescale.net:8181/10526
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Geoff Thorpe <Geoff.Thorpe@freescale.com>
Reviewed-by: Jose Rivera <German.Rivera@freescale.com>
Diffstat (limited to 'drivers/staging/fsl_qbman/fsl_usdpaa.c')
| -rw-r--r-- | drivers/staging/fsl_qbman/fsl_usdpaa.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/staging/fsl_qbman/fsl_usdpaa.c b/drivers/staging/fsl_qbman/fsl_usdpaa.c index fb4aaba..0e6adca 100644 --- a/drivers/staging/fsl_qbman/fsl_usdpaa.c +++ b/drivers/staging/fsl_qbman/fsl_usdpaa.c @@ -1054,7 +1054,8 @@ static long ioctl_dma_stats(struct ctx *ctx, void __user *arg) result.total_bytes = phys_size; list_for_each_entry(frag, &mem_list, list) { - result.free_bytes += frag->len; + if (frag->refs == 0) + result.free_bytes += frag->len; } return copy_to_user(arg, &result, sizeof(result)); } |