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authorLinus Torvalds <torvalds@linux-foundation.org>2013-05-08 11:51:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-05-08 11:51:05 -0700
commitebb37277796269da36a8bc5d72ed1e8e1fb7d34b (patch)
tree0ded627a62a5cec70b18d12825dd858855c135d3 /include/linux
parent4de13d7aa8f4d02f4dc99d4609575659f92b3c5a (diff)
parentf50efd2fdbd9b35b11f5778ed85beb764184bda9 (diff)
Merge branch 'for-3.10/drivers' of git://git.kernel.dk/linux-block
Pull block driver updates from Jens Axboe: "It might look big in volume, but when categorized, not a lot of drivers are touched. The pull request contains: - mtip32xx fixes from Micron. - A slew of drbd updates, this time in a nicer series. - bcache, a flash/ssd caching framework from Kent. - Fixes for cciss" * 'for-3.10/drivers' of git://git.kernel.dk/linux-block: (66 commits) bcache: Use bd_link_disk_holder() bcache: Allocator cleanup/fixes cciss: bug fix to prevent cciss from loading in kdump crash kernel cciss: add cciss_allow_hpsa module parameter drivers/block/mg_disk.c: add CONFIG_PM_SLEEP to suspend/resume functions mtip32xx: Workaround for unaligned writes bcache: Make sure blocksize isn't smaller than device blocksize bcache: Fix merge_bvec_fn usage for when it modifies the bvm bcache: Correctly check against BIO_MAX_PAGES bcache: Hack around stuff that clones up to bi_max_vecs bcache: Set ra_pages based on backing device's ra_pages bcache: Take data offset from the bdev superblock. mtip32xx: mtip32xx: Disable TRIM support mtip32xx: fix a smatch warning bcache: Disable broken btree fuzz tester bcache: Fix a format string overflow bcache: Fix a minor memory leak on device teardown bcache: Documentation updates bcache: Use WARN_ONCE() instead of __WARN() bcache: Add missing #include <linux/prefetch.h> ...
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/cgroup_subsys.h6
-rw-r--r--include/linux/drbd.h5
-rw-r--r--include/linux/drbd_limits.h11
-rw-r--r--include/linux/idr.h10
-rw-r--r--include/linux/lru_cache.h1
-rw-r--r--include/linux/rwsem.h10
-rw-r--r--include/linux/sched.h4
7 files changed, 35 insertions, 12 deletions
diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h
index f204a7a9cf38..6e7ec64b69ab 100644
--- a/include/linux/cgroup_subsys.h
+++ b/include/linux/cgroup_subsys.h
@@ -78,3 +78,9 @@ SUBSYS(hugetlb)
#endif
/* */
+
+#ifdef CONFIG_CGROUP_BCACHE
+SUBSYS(bcache)
+#endif
+
+/* */
diff --git a/include/linux/drbd.h b/include/linux/drbd.h
index 0c5a18ec322c..1b4d4ee1168f 100644
--- a/include/linux/drbd.h
+++ b/include/linux/drbd.h
@@ -52,7 +52,7 @@
#endif
extern const char *drbd_buildtag(void);
-#define REL_VERSION "8.4.2"
+#define REL_VERSION "8.4.3"
#define API_VERSION 1
#define PRO_VERSION_MIN 86
#define PRO_VERSION_MAX 101
@@ -319,7 +319,8 @@ enum drbd_state_rv {
SS_IN_TRANSIENT_STATE = -18, /* Retry after the next state change */
SS_CONCURRENT_ST_CHG = -19, /* Concurrent cluster side state change! */
SS_O_VOL_PEER_PRI = -20,
- SS_AFTER_LAST_ERROR = -21, /* Keep this at bottom */
+ SS_OUTDATE_WO_CONN = -21,
+ SS_AFTER_LAST_ERROR = -22, /* Keep this at bottom */
};
/* from drbd_strings.c */
diff --git a/include/linux/drbd_limits.h b/include/linux/drbd_limits.h
index 1fa19c5f5e64..1fedf2b17cc8 100644
--- a/include/linux/drbd_limits.h
+++ b/include/linux/drbd_limits.h
@@ -126,13 +126,12 @@
#define DRBD_RESYNC_RATE_DEF 250
#define DRBD_RESYNC_RATE_SCALE 'k' /* kilobytes */
- /* less than 7 would hit performance unnecessarily.
- * 919 slots context information per transaction,
- * 32k activity log, 4k transaction size,
- * one transaction in flight:
- * 919 * 7 = 6433 */
+ /* less than 7 would hit performance unnecessarily. */
#define DRBD_AL_EXTENTS_MIN 7
-#define DRBD_AL_EXTENTS_MAX 6433
+ /* we use u16 as "slot number", (u16)~0 is "FREE".
+ * If you use >= 292 kB on-disk ring buffer,
+ * this is the maximum you can use: */
+#define DRBD_AL_EXTENTS_MAX 0xfffe
#define DRBD_AL_EXTENTS_DEF 1237
#define DRBD_AL_EXTENTS_SCALE '1'
diff --git a/include/linux/idr.h b/include/linux/idr.h
index a470ac3ef49d..871a213a8477 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -124,11 +124,13 @@ static inline void *idr_find(struct idr *idr, int id)
* @idp: idr handle
* @entry: the type * to use as cursor
* @id: id entry's key
+ *
+ * @entry and @id do not need to be initialized before the loop, and
+ * after normal terminatinon @entry is left with the value NULL. This
+ * is convenient for a "not found" value.
*/
-#define idr_for_each_entry(idp, entry, id) \
- for (id = 0, entry = (typeof(entry))idr_get_next((idp), &(id)); \
- entry != NULL; \
- ++id, entry = (typeof(entry))idr_get_next((idp), &(id)))
+#define idr_for_each_entry(idp, entry, id) \
+ for (id = 0; ((entry) = idr_get_next(idp, &(id))) != NULL; ++id)
/*
* Don't use the following functions. These exist only to suppress
diff --git a/include/linux/lru_cache.h b/include/linux/lru_cache.h
index 4019013c6593..46262284de47 100644
--- a/include/linux/lru_cache.h
+++ b/include/linux/lru_cache.h
@@ -256,6 +256,7 @@ extern void lc_destroy(struct lru_cache *lc);
extern void lc_set(struct lru_cache *lc, unsigned int enr, int index);
extern void lc_del(struct lru_cache *lc, struct lc_element *element);
+extern struct lc_element *lc_get_cumulative(struct lru_cache *lc, unsigned int enr);
extern struct lc_element *lc_try_get(struct lru_cache *lc, unsigned int enr);
extern struct lc_element *lc_find(struct lru_cache *lc, unsigned int enr);
extern struct lc_element *lc_get(struct lru_cache *lc, unsigned int enr);
diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
index 8da67d625e13..0616ffe45702 100644
--- a/include/linux/rwsem.h
+++ b/include/linux/rwsem.h
@@ -133,10 +133,20 @@ do { \
_down_write_nest_lock(sem, &(nest_lock)->dep_map); \
} while (0);
+/*
+ * Take/release a lock when not the owner will release it.
+ *
+ * [ This API should be avoided as much as possible - the
+ * proper abstraction for this case is completions. ]
+ */
+extern void down_read_non_owner(struct rw_semaphore *sem);
+extern void up_read_non_owner(struct rw_semaphore *sem);
#else
# define down_read_nested(sem, subclass) down_read(sem)
# define down_write_nest_lock(sem, nest_lock) down_write(sem)
# define down_write_nested(sem, subclass) down_write(sem)
+# define down_read_non_owner(sem) down_read(sem)
+# define up_read_non_owner(sem) up_read(sem)
#endif
#endif /* _LINUX_RWSEM_H */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 022c085ac3c5..caa8f4d0186b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1411,6 +1411,10 @@ struct task_struct {
#ifdef CONFIG_UPROBES
struct uprobe_task *utask;
#endif
+#if defined(CONFIG_BCACHE) || defined(CONFIG_BCACHE_MODULE)
+ unsigned int sequential_io;
+ unsigned int sequential_io_avg;
+#endif
};
/* Future-safe accessor for struct task_struct's cpus_allowed. */