From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: [PATCH 52/77] mmc: convert to idr_alloc() Date: Wed, 6 Feb 2013 11:40:24 -0800 Message-ID: <1360179649-22465-53-git-send-email-tj@kernel.org> References: <1360179649-22465-1-git-send-email-tj@kernel.org> Return-path: In-Reply-To: <1360179649-22465-1-git-send-email-tj@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, Tejun Heo , Chris Ball , linux-mmc@vger.kernel.org List-Id: linux-mmc@vger.kernel.org Convert to the much saner new idr interface. Only compile tested. Signed-off-by: Tejun Heo Cc: Chris Ball Cc: linux-mmc@vger.kernel.org --- drivers/mmc/core/host.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index ee2e16b..1117de7 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -306,19 +306,20 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev) int err; struct mmc_host *host; - if (!idr_pre_get(&mmc_host_idr, GFP_KERNEL)) - return NULL; - host = kzalloc(sizeof(struct mmc_host) + extra, GFP_KERNEL); if (!host) return NULL; /* scanning will be enabled when we're ready */ host->rescan_disable = 1; + idr_preload(GFP_KERNEL); spin_lock(&mmc_host_lock); - err = idr_get_new(&mmc_host_idr, host, &host->index); + err = idr_alloc(&mmc_host_idr, host, 0, 0, GFP_NOWAIT); + if (err >= 0) + host->index = err; spin_unlock(&mmc_host_lock); - if (err) + idr_preload_end(); + if (err < 0) goto free; dev_set_name(&host->class_dev, "mmc%d", host->index); -- 1.8.1