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authorPaul Mundt <lethal@linux-sh.org>2011-05-31 13:10:26 +0900
committerPaul Mundt <lethal@linux-sh.org>2011-05-31 13:10:26 +0900
commit8181d3ef26ed1d9eb21e2cdcac374e1f457fdc06 (patch)
tree1a081f09ebcf2a84de899ddeadd0e4c5e48b50d2 /drivers/block/drbd/drbd_int.h
parent54525552c6ccfd867e819845da14be994e303218 (diff)
parent55922c9d1b84b89cb946c777fddccb3247e7df2c (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-fixes-for-linus
Diffstat (limited to 'drivers/block/drbd/drbd_int.h')
-rw-r--r--drivers/block/drbd/drbd_int.h19
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index d871b14ed5a..ef2ceed3be4 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -700,7 +700,7 @@ struct drbd_request {
* see drbd_endio_pri(). */
struct bio *private_bio;
- struct hlist_node colision;
+ struct hlist_node collision;
sector_t sector;
unsigned int size;
unsigned int epoch; /* barrier_nr */
@@ -766,7 +766,7 @@ struct digest_info {
struct drbd_epoch_entry {
struct drbd_work w;
- struct hlist_node colision;
+ struct hlist_node collision;
struct drbd_epoch *epoch; /* for writes */
struct drbd_conf *mdev;
struct page *pages;
@@ -1129,6 +1129,8 @@ struct drbd_conf {
int rs_in_flight; /* resync sectors in flight (to proxy, in proxy and from proxy) */
int rs_planed; /* resync sectors already planned */
atomic_t ap_in_flight; /* App sectors in flight (waiting for ack) */
+ int peer_max_bio_size;
+ int local_max_bio_size;
};
static inline struct drbd_conf *minor_to_mdev(unsigned int minor)
@@ -1218,8 +1220,6 @@ extern void drbd_free_resources(struct drbd_conf *mdev);
extern void tl_release(struct drbd_conf *mdev, unsigned int barrier_nr,
unsigned int set_size);
extern void tl_clear(struct drbd_conf *mdev);
-enum drbd_req_event;
-extern void tl_restart(struct drbd_conf *mdev, enum drbd_req_event what);
extern void _tl_add_barrier(struct drbd_conf *, struct drbd_tl_epoch *);
extern void drbd_free_sock(struct drbd_conf *mdev);
extern int drbd_send(struct drbd_conf *mdev, struct socket *sock,
@@ -1434,6 +1434,7 @@ struct bm_extent {
* hash table. */
#define HT_SHIFT 8
#define DRBD_MAX_BIO_SIZE (1U<<(9+HT_SHIFT))
+#define DRBD_MAX_BIO_SIZE_SAFE (1 << 12) /* Works always = 4k */
#define DRBD_MAX_SIZE_H80_PACKET (1 << 15) /* The old header only allows packets up to 32Kib data */
@@ -1518,9 +1519,9 @@ extern void drbd_resume_io(struct drbd_conf *mdev);
extern char *ppsize(char *buf, unsigned long long size);
extern sector_t drbd_new_dev_size(struct drbd_conf *, struct drbd_backing_dev *, int);
enum determine_dev_size { dev_size_error = -1, unchanged = 0, shrunk = 1, grew = 2 };
-extern enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *, enum dds_flags) __must_hold(local);
+extern enum determine_dev_size drbd_determine_dev_size(struct drbd_conf *, enum dds_flags) __must_hold(local);
extern void resync_after_online_grow(struct drbd_conf *);
-extern void drbd_setup_queue_param(struct drbd_conf *mdev, unsigned int) __must_hold(local);
+extern void drbd_reconsider_max_bio_size(struct drbd_conf *mdev);
extern enum drbd_state_rv drbd_set_role(struct drbd_conf *mdev,
enum drbd_role new_role,
int force);
@@ -1828,6 +1829,8 @@ static inline void __drbd_chk_io_error_(struct drbd_conf *mdev, int forcedetach,
if (!forcedetach) {
if (__ratelimit(&drbd_ratelimit_state))
dev_err(DEV, "Local IO failed in %s.\n", where);
+ if (mdev->state.disk > D_INCONSISTENT)
+ _drbd_set_state(_NS(mdev, disk, D_INCONSISTENT), CS_HARD, NULL);
break;
}
/* NOTE fall through to detach case if forcedetach set */
@@ -2153,6 +2156,10 @@ static inline int get_net_conf(struct drbd_conf *mdev)
static inline void put_ldev(struct drbd_conf *mdev)
{
int i = atomic_dec_return(&mdev->local_cnt);
+
+ /* This may be called from some endio handler,
+ * so we must not sleep here. */
+
__release(local);
D_ASSERT(i >= 0);
if (i == 0) {