Reduce max_segs to a value that allows allocation of an entire descriptor list within a single page. This avoids doing a higher order GFP_ATOMIC allocation when setting up a transfer which can potentially fail and lead to I/O failures. Signed-off-by: Will Newton <willn@xxxxxxxx> --- drivers/mmc/host/omap_hsmmc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 1438a72..d5f42d9 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -2864,9 +2864,9 @@ static int omap_hsmmc_probe(struct platform_device *pdev) host->use_adma = true; } - /* Since we do only SG emulation, we can have as many segs - * as we want. */ - mmc->max_segs = 1024; + /* Set this to a value that allows allocating an entire descriptor + list within a page (zero order allocation). */ + mmc->max_segs = 64; mmc->max_blk_size = 512; /* Block Length at max can be 1024 */ mmc->max_blk_count = 0xFFFF; /* No. of Blocks is 16 bits */ -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
