Whamcloud - gitweb
LU-5855 lfsck: misc fixes for zfs-based backend
[fs/lustre-release.git] / lustre / include / obd_support.h
index cc3e2c4..0bdfc4a 100644 (file)
 #ifndef _OBD_SUPPORT
 #define _OBD_SUPPORT
 
+#ifndef __KERNEL__
+# error Userspace should not include obd_support.h.
+#endif /* !__KERNEL__ */
+
+#include <linux/atomic.h>
+#include <linux/highmem.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
 #include <libcfs/libcfs.h>
 #include <lprocfs_status.h>
-
-#if defined(__linux__)
-#include <linux/obd_support.h>
-#elif defined(__APPLE__)
-#include <darwin/obd_support.h>
-#elif defined(__WINNT__)
-#include <winnt/obd_support.h>
-#else
-#error Unsupported operating system.
-#endif
+#include <lustre_handles.h>
 
 /* global variables */
 extern struct lprocfs_stats *obd_memory;
@@ -67,14 +67,15 @@ extern unsigned int obd_timeout;          /* seconds */
 extern unsigned int ldlm_timeout;         /* seconds */
 extern unsigned int obd_timeout_set;
 extern unsigned int ldlm_timeout_set;
+extern unsigned int bulk_timeout;
 extern unsigned int at_min;
 extern unsigned int at_max;
 extern unsigned int at_history;
 extern int at_early_margin;
 extern int at_extra;
-extern unsigned int obd_max_dirty_pages;
-extern atomic_t obd_dirty_pages;
-extern atomic_t obd_dirty_transit_pages;
+extern unsigned long obd_max_dirty_pages;
+extern atomic_long_t obd_dirty_pages;
+extern atomic_long_t obd_dirty_transit_pages;
 extern unsigned int obd_alloc_fail_rate;
 extern char obd_jobid_var[];
 
@@ -424,6 +425,8 @@ int obd_alloc_fail(const void *ptr, const char *name, const char *type,
 #define OBD_FAIL_TGT_CLIENT_ADD          0x711
 #define OBD_FAIL_TGT_RCVG_FLAG           0x712
 #define OBD_FAIL_TGT_DELAY_CONDITIONAL  0x713
+#define OBD_FAIL_TGT_REPLAY_DELAY2       0x714
+#define OBD_FAIL_TGT_REPLAY_RECONNECT   0x715
 
 #define OBD_FAIL_MDC_REVALIDATE_PAUSE    0x800
 #define OBD_FAIL_MDC_ENQUEUE_PAUSE       0x801
@@ -522,6 +525,22 @@ int obd_alloc_fail(const void *ptr, const char *name, const char *type,
 #define OBD_FAIL_LFSCK_INVALID_PFID    0x1619
 #define OBD_FAIL_LFSCK_LOST_SPEOBJ     0x161a
 #define OBD_FAIL_LFSCK_DELAY5          0x161b
+#define OBD_FAIL_LFSCK_BAD_NETWORK     0x161c
+#define OBD_FAIL_LFSCK_NO_LINKEA       0x161d
+#define OBD_FAIL_LFSCK_BAD_PARENT      0x161e
+#define OBD_FAIL_LFSCK_DANGLING2       0x1620
+#define OBD_FAIL_LFSCK_DANGLING3       0x1621
+#define OBD_FAIL_LFSCK_MUL_REF         0x1622
+#define OBD_FAIL_LFSCK_BAD_TYPE                0x1623
+#define OBD_FAIL_LFSCK_NO_NAMEENTRY    0x1624
+#define OBD_FAIL_LFSCK_MORE_NLINK      0x1625
+#define OBD_FAIL_LFSCK_LESS_NLINK      0x1626
+#define OBD_FAIL_LFSCK_LINKEA_OVERFLOW 0x1627
+#define OBD_FAIL_LFSCK_BAD_NAME_HASH   0x1628
+#define OBD_FAIL_LFSCK_LOST_MASTER_LMV 0x1629
+#define OBD_FAIL_LFSCK_LOST_SLAVE_LMV  0x162a
+#define OBD_FAIL_LFSCK_BAD_SLAVE_LMV   0x162b
+#define OBD_FAIL_LFSCK_BAD_SLAVE_NAME  0x162c
 
 #define OBD_FAIL_LFSCK_NOTIFY_NET      0x16f0
 #define OBD_FAIL_LFSCK_QUERY_NET       0x16f1
@@ -538,6 +557,33 @@ int obd_alloc_fail(const void *ptr, const char *name, const char *type,
 /* LMV */
 #define OBD_FAIL_UNKNOWN_LMV_STRIPE            0x1901
 
+/* DT */
+#define OBD_FAIL_DT_DECLARE_ATTR_GET           0x2000
+#define OBD_FAIL_DT_ATTR_GET                   0x2001
+#define OBD_FAIL_DT_DECLARE_ATTR_SET           0x2002
+#define OBD_FAIL_DT_ATTR_SET                   0x2003
+#define OBD_FAIL_DT_DECLARE_XATTR_GET          0x2004
+#define OBD_FAIL_DT_XATTR_GET                  0x2005
+#define OBD_FAIL_DT_DECLARE_XATTR_SET          0x2006
+#define OBD_FAIL_DT_XATTR_SET                  0x2007
+#define OBD_FAIL_DT_DECLARE_XATTR_DEL          0x2008
+#define OBD_FAIL_DT_XATTR_DEL                  0x2009
+#define OBD_FAIL_DT_XATTR_LIST                 0x200a
+#define OBD_FAIL_DT_DECLARE_CREATE             0x200b
+#define OBD_FAIL_DT_CREATE                     0x200c
+#define OBD_FAIL_DT_DECLARE_DESTROY            0x200d
+#define OBD_FAIL_DT_DESTROY                    0x200e
+#define OBD_FAIL_DT_INDEX_TRY                  0x200f
+#define OBD_FAIL_DT_DECLARE_REF_ADD            0x2010
+#define OBD_FAIL_DT_REF_ADD                    0x2011
+#define OBD_FAIL_DT_DECLARE_REF_DEL            0x2012
+#define OBD_FAIL_DT_REF_DEL                    0x2013
+#define OBD_FAIL_DT_DECLARE_INSERT             0x2014
+#define OBD_FAIL_DT_INSERT                     0x2015
+#define OBD_FAIL_DT_DECLARE_DELETE             0x2016
+#define OBD_FAIL_DT_DELETE                     0x2017
+#define OBD_FAIL_DT_LOOKUP                     0x2018
+
 /* Assign references to moved code to reduce code changes */
 #define OBD_FAIL_PRECHECK(id)                   CFS_FAIL_PRECHECK(id)
 #define OBD_FAIL_CHECK(id)                      CFS_FAIL_CHECK(id)
@@ -576,7 +622,7 @@ extern void obd_update_maxusage(void);
 extern __u64 obd_memory_max(void);
 extern __u64 obd_pages_max(void);
 
-#else
+#else /* LPROCFS */
 
 extern __u64 obd_alloc;
 extern __u64 obd_pages;
@@ -614,7 +660,7 @@ static inline void obd_pages_sub(int order)
 #define obd_memory_max() (obd_max_alloc)
 #define obd_pages_max() (obd_max_pages)
 
-#endif
+#endif /* !LPROCFS */
 
 #define OBD_DEBUG_MEMUSAGE (1)
 
@@ -648,22 +694,6 @@ static inline void obd_pages_sub(int order)
 #define OBD_ALLOC_FAIL_MASK ((1 << OBD_ALLOC_FAIL_BITS) - 1)
 #define OBD_ALLOC_FAIL_MULT (OBD_ALLOC_FAIL_MASK / 100)
 
-#if defined(LUSTRE_UTILS) /* this version is for utils only */
-#define __OBD_MALLOC_VERBOSE(ptr, cptab, cpt, size, flags)                   \
-do {                                                                         \
-       (ptr) = (cptab) == NULL ?                                             \
-               kmalloc(size, flags | __GFP_ZERO) :                           \
-               cfs_cpt_malloc(cptab, cpt, size, flags | __GFP_ZERO);         \
-       if (unlikely((ptr) == NULL)) {                                        \
-               CERROR("kmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n",  \
-                      (int)(size), __FILE__, __LINE__);                      \
-       } else {                                                              \
-               CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p\n",          \
-                      (int)(size), ptr);                                     \
-       }                                                                     \
-} while (0)
-
-#else /* this version is for the kernel and liblustre */
 #define OBD_FREE_RTN0(ptr)                                                    \
 ({                                                                            \
        kfree(ptr);                                                        \
@@ -684,7 +714,6 @@ do {                                                                              \
                 OBD_ALLOC_POST(ptr, size, "kmalloced");                       \
         }                                                                     \
 } while (0)
-#endif
 
 #define OBD_ALLOC_GFP(ptr, size, gfp_mask)                                   \
        __OBD_MALLOC_VERBOSE(ptr, NULL, 0, size, gfp_mask)
@@ -703,10 +732,15 @@ do {                                                                            \
 #define OBD_CPT_ALLOC_PTR(ptr, cptab, cpt)                                   \
        OBD_CPT_ALLOC(ptr, cptab, cpt, sizeof *(ptr))
 
-# define __OBD_VMALLOC_VERBOSE(ptr, cptab, cpt, size)                        \
+/* Direct use of __vmalloc() allows for protection flag specification
+ * (and particularly to not set __GFP_FS, which is likely to cause some
+ * deadlock situations in our code).
+ */
+#define __OBD_VMALLOC_VERBOSE(ptr, cptab, cpt, size)                         \
 do {                                                                         \
        (ptr) = cptab == NULL ?                                               \
-               vzalloc(size) :                                       \
+               __vmalloc(size, GFP_NOFS | __GFP_HIGHMEM | __GFP_ZERO,        \
+                         PAGE_KERNEL) :                                      \
                cfs_cpt_vzalloc(cptab, cpt, size);                            \
        if (unlikely((ptr) == NULL)) {                                        \
                CERROR("vmalloc of '" #ptr "' (%d bytes) failed\n",           \
@@ -718,13 +752,11 @@ do {                                                                            \
        }                                                                     \
 } while(0)
 
-# define OBD_VMALLOC(ptr, size)                                                      \
+#define OBD_VMALLOC(ptr, size)                                               \
         __OBD_VMALLOC_VERBOSE(ptr, NULL, 0, size)
-# define OBD_CPT_VMALLOC(ptr, cptab, cpt, size)                                      \
+#define OBD_CPT_VMALLOC(ptr, cptab, cpt, size)                               \
         __OBD_VMALLOC_VERBOSE(ptr, cptab, cpt, size)
 
-#ifdef __KERNEL__
-
 /* Allocations above this size are considered too big and could not be done
  * atomically.
  *
@@ -758,17 +790,6 @@ do {                                                                          \
                 OBD_FREE(ptr, size);                                          \
 } while (0)
 
-#else /* !__KERNEL__ */
-
-#define OBD_ALLOC_LARGE(ptr, size)                                           \
-       OBD_ALLOC(ptr, size)
-#define OBD_CPT_ALLOC_LARGE(ptr, cptab, cpt, size)                           \
-       OBD_ALLOC(ptr, size)
-#define OBD_FREE_LARGE(ptr, size)                                            \
-       OBD_FREE(ptr, size)
-
-#endif /* __KERNEL__ */
-
 #ifdef CONFIG_DEBUG_SLAB
 #define POISON(ptr, c, s) do {} while (0)
 #define POISON_PTR(ptr)  ((void)0)
@@ -784,7 +805,6 @@ do {                                                                          \
 #define POISON_PAGE(page, val) do { } while (0)
 #endif
 
-#ifdef __KERNEL__
 #define OBD_FREE(ptr, size)                                                   \
 do {                                                                          \
         OBD_FREE_PRE(ptr, size, "kfreed");                                    \
@@ -804,11 +824,6 @@ do {                                                                             \
        POISON_PTR(ptr);                                                      \
 } while(0)
 
-#else
-#define OBD_FREE(ptr, size) ((void)(size), free((ptr)))
-#define OBD_FREE_RCU(ptr, size, handle) (OBD_FREE(ptr, size))
-#endif /* ifdef __KERNEL__ */
-
 #define OBD_VFREE(ptr, size)                           \
        do {                                            \
                OBD_FREE_PRE(ptr, size, "vfreed");      \