staging/lustre: Remove memory allocation fault injection framework
Lustre memory allocation wrappers also included a fault injection
framework that's totally redundant, since in-kernel offering is
actually superior to what we had.
So let's remove it.
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/lustre/lustre/include/obd_support.h b/drivers/staging/lustre/lustre/include/obd_support.h
index 8a3323c..3d92f19 100644
--- a/drivers/staging/lustre/lustre/include/obd_support.h
+++ b/drivers/staging/lustre/lustre/include/obd_support.h
@@ -66,13 +66,8 @@
extern unsigned int obd_max_dirty_pages;
extern atomic_t obd_dirty_pages;
extern atomic_t obd_dirty_transit_pages;
-extern unsigned int obd_alloc_fail_rate;
extern char obd_jobid_var[];
-/* lvfs.c */
-int obd_alloc_fail(const void *ptr, const char *name, const char *type,
- size_t size, const char *file, int line);
-
/* Some hash init argument constants */
#define HASH_POOLS_BKT_BITS 3
#define HASH_POOLS_CUR_BITS 3
@@ -428,8 +423,6 @@
#define OBD_FAIL_LPROC_REMOVE 0xB00
-#define OBD_FAIL_GENERAL_ALLOC 0xC00
-
#define OBD_FAIL_SEQ 0x1000
#define OBD_FAIL_SEQ_QUERY_NET 0x1001
#define OBD_FAIL_SEQ_EXHAUST 0x1002
@@ -545,12 +538,6 @@
#endif /* !OBD_DEBUG_MEMUSAGE */
-#define HAS_FAIL_ALLOC_FLAG OBD_FAIL_CHECK(OBD_FAIL_GENERAL_ALLOC)
-
-#define OBD_ALLOC_FAIL_BITS 24
-#define OBD_ALLOC_FAIL_MASK ((1 << OBD_ALLOC_FAIL_BITS) - 1)
-#define OBD_ALLOC_FAIL_MULT (OBD_ALLOC_FAIL_MASK / 100)
-
#ifdef CONFIG_DEBUG_SLAB
#define POISON(ptr, c, s) do {} while (0)
#define POISON_PTR(ptr) ((void)0)
@@ -596,13 +583,8 @@
kmem_cache_alloc(slab, type | __GFP_ZERO) : \
kmem_cache_alloc_node(slab, type | __GFP_ZERO, \
cfs_cpt_spread_node(cptab, cpt)); \
- if (likely((ptr) != NULL && \
- (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 || \
- !obd_alloc_fail(ptr, #ptr, "slab-", size, \
- __FILE__, __LINE__) || \
- OBD_SLAB_FREE_RTN0(ptr, slab)))) { \
+ if (likely(ptr)) \
OBD_ALLOC_POST(ptr, size, "slab-alloced"); \
- } \
} while (0)
#define OBD_SLAB_ALLOC_GFP(ptr, slab, size, flags) \
diff --git a/drivers/staging/lustre/lustre/obdclass/class_obd.c b/drivers/staging/lustre/lustre/obdclass/class_obd.c
index b151154..fb4138c 100644
--- a/drivers/staging/lustre/lustre/obdclass/class_obd.c
+++ b/drivers/staging/lustre/lustre/obdclass/class_obd.c
@@ -64,8 +64,6 @@
static DEFINE_SPINLOCK(obd_updatemax_lock);
/* The following are visible and mutable through /proc/sys/lustre/. */
-unsigned int obd_alloc_fail_rate;
-EXPORT_SYMBOL(obd_alloc_fail_rate);
unsigned int obd_debug_peer_on_timeout;
EXPORT_SYMBOL(obd_debug_peer_on_timeout);
unsigned int obd_dump_on_timeout;
@@ -132,25 +130,6 @@
}
EXPORT_SYMBOL(lustre_get_jobid);
-int obd_alloc_fail(const void *ptr, const char *name, const char *type,
- size_t size, const char *file, int line)
-{
- if (ptr == NULL ||
- (cfs_rand() & OBD_ALLOC_FAIL_MASK) < obd_alloc_fail_rate) {
- CERROR("%s%salloc of %s (%llu bytes) failed at %s:%d\n",
- ptr ? "force " : "", type, name, (__u64)size, file,
- line);
- CERROR("%llu total bytes and %llu total pages"
- " (%llu bytes) allocated by Lustre\n",
- obd_memory_sum(),
- obd_pages_sum() << PAGE_CACHE_SHIFT,
- obd_pages_sum());
- return 1;
- }
- return 0;
-}
-EXPORT_SYMBOL(obd_alloc_fail);
-
static inline void obd_data2conn(struct lustre_handle *conn,
struct obd_ioctl_data *data)
{