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authorLinus Torvalds <torvalds@linux-foundation.org>2009-07-29 19:15:18 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-07-29 19:15:18 -0700
commit91a5698d1f253d30f53f0c58d2504eaec481b854 (patch)
tree684d8060e16b33c6ede5b814dbd459e0c5cb1f39 /fs
parent084bad91afd0f40ff4db9ceb56e29234c314d8d1 (diff)
parentdddac6a7b445de95515f64fdf82fe5dc36c02f26 (diff)
Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: PM / Hibernate: Replace bdget call with simple atomic_inc of i_count PM / ACPI: HP G7000 Notebook needs a SCI_EN resume quirk
Diffstat (limited to 'fs')
-rw-r--r--fs/block_dev.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 3a6d4fb2a32..94dfda24c06 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -564,6 +564,16 @@ struct block_device *bdget(dev_t dev)
EXPORT_SYMBOL(bdget);
+/**
+ * bdgrab -- Grab a reference to an already referenced block device
+ * @bdev: Block device to grab a reference to.
+ */
+struct block_device *bdgrab(struct block_device *bdev)
+{
+ atomic_inc(&bdev->bd_inode->i_count);
+ return bdev;
+}
+
long nr_blockdev_pages(void)
{
struct block_device *bdev;