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authorLinus Torvalds <torvalds@linux-foundation.org>2013-02-27 20:58:09 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-27 20:58:09 -0800
commit2a7d2b96d5cba7568139d9ab157a0e97ab32440f (patch)
treead029d8cc7b7068b7250e914360ec6315fdfa114 /drivers/firewire/core-cdev.c
parente3c4877de8b9d93bd47b6ee88eb594b1c1e10da5 (diff)
parentb67bfe0d42cac56c512dd5da4b1b347a23f4b70a (diff)
Merge branch 'akpm' (final batch from Andrew)
Merge third patch-bumb from Andrew Morton: "This wraps me up for -rc1. - Lots of misc stuff and things which were deferred/missed from patchbombings 1 & 2. - ocfs2 things - lib/scatterlist - hfsplus - fatfs - documentation - signals - procfs - lockdep - coredump - seqfile core - kexec - Tejun's large IDR tree reworkings - ipmi - partitions - nbd - random() things - kfifo - tools/testing/selftests updates - Sasha's large and pointless hlist cleanup" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (163 commits) hlist: drop the node parameter from iterators kcmp: make it depend on CHECKPOINT_RESTORE selftests: add a simple doc tools/testing/selftests/Makefile: rearrange targets selftests/efivarfs: add create-read test selftests/efivarfs: add empty file creation test selftests: add tests for efivarfs kfifo: fix kfifo_alloc() and kfifo_init() kfifo: move kfifo.c from kernel/ to lib/ arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS w1: add support for DS2413 Dual Channel Addressable Switch memstick: move the dereference below the NULL test drivers/pps/clients/pps-gpio.c: use devm_kzalloc Documentation/DMA-API-HOWTO.txt: fix typo include/linux/eventfd.h: fix incorrect filename is a comment mtd: mtd_stresstest: use prandom_bytes() mtd: mtd_subpagetest: convert to use prandom library mtd: mtd_speedtest: use prandom_bytes mtd: mtd_pagetest: convert to use prandom library mtd: mtd_oobtest: convert to use prandom library ...
Diffstat (limited to 'drivers/firewire/core-cdev.c')
-rw-r--r--drivers/firewire/core-cdev.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index f8d22872d75..27ac423ab25 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -487,27 +487,28 @@ static int ioctl_get_info(struct client *client, union ioctl_arg *arg)
static int add_client_resource(struct client *client,
struct client_resource *resource, gfp_t gfp_mask)
{
+ bool preload = gfp_mask & __GFP_WAIT;
unsigned long flags;
int ret;
- retry:
- if (idr_pre_get(&client->resource_idr, gfp_mask) == 0)
- return -ENOMEM;
-
+ if (preload)
+ idr_preload(gfp_mask);
spin_lock_irqsave(&client->lock, flags);
+
if (client->in_shutdown)
ret = -ECANCELED;
else
- ret = idr_get_new(&client->resource_idr, resource,
- &resource->handle);
+ ret = idr_alloc(&client->resource_idr, resource, 0, 0,
+ GFP_NOWAIT);
if (ret >= 0) {
+ resource->handle = ret;
client_get(client);
schedule_if_iso_resource(resource);
}
- spin_unlock_irqrestore(&client->lock, flags);
- if (ret == -EAGAIN)
- goto retry;
+ spin_unlock_irqrestore(&client->lock, flags);
+ if (preload)
+ idr_preload_end();
return ret < 0 ? ret : 0;
}
@@ -1779,7 +1780,6 @@ static int fw_device_op_release(struct inode *inode, struct file *file)
wait_event(client->tx_flush_wait, !has_outbound_transactions(client));
idr_for_each(&client->resource_idr, shutdown_resource, client);
- idr_remove_all(&client->resource_idr);
idr_destroy(&client->resource_idr);
list_for_each_entry_safe(event, next_event, &client->event_list, link)