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authorTejun Heo <tj@kernel.org>2010-05-15 20:09:30 +0200
committerJens Axboe <jens.axboe@oracle.com>2010-05-21 20:01:02 +0200
commit1493bf217f7f59a5d9e2095a7dbcec00fb36ca8b (patch)
tree9c03b0bd903a338d061958f8d65d196b14c81376 /fs/partitions/check.h
parentc3e33e043f5e9c583aa59d5591a614b2a8243d3a (diff)
downloadop-kernel-dev-1493bf217f7f59a5d9e2095a7dbcec00fb36ca8b.zip
op-kernel-dev-1493bf217f7f59a5d9e2095a7dbcec00fb36ca8b.tar.gz
block: use struct parsed_partitions *state universally in partition check code
Make the following changes to partition check code. * Add ->bdev to struct parsed_partitions. * Introduce read_part_sector() which is a simple wrapper around read_dev_sector() which takes struct parsed_partitions *state instead of @bdev. * For functions which used to take @state and @bdev, drop @bdev. For functions which used to take @bdev, replace it with @state. * While updating, drop superflous checks on NULL state/bdev in ldm.c. This cleans up the API a bit and enables better handling of IO errors during partition check as the generic partition check code now has much better visibility into what went wrong in the low level code paths. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Ben Hutchings <ben@decadent.org.uk> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'fs/partitions/check.h')
-rw-r--r--fs/partitions/check.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/partitions/check.h b/fs/partitions/check.h
index 98dbe1a..4b31a97 100644
--- a/fs/partitions/check.h
+++ b/fs/partitions/check.h
@@ -6,6 +6,7 @@
* description.
*/
struct parsed_partitions {
+ struct block_device *bdev;
char name[BDEVNAME_SIZE];
struct {
sector_t from;
@@ -16,6 +17,12 @@ struct parsed_partitions {
int limit;
};
+static inline void *read_part_sector(struct parsed_partitions *state,
+ sector_t n, Sector *p)
+{
+ return read_dev_sector(state->bdev, n, p);
+}
+
static inline void
put_partition(struct parsed_partitions *p, int n, sector_t from, sector_t size)
{
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