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LU-11765 ofd: return EAGAIN during 1st CLEANUP_ORPHAN
[fs/lustre-release.git] / lustre / include / obd_support.h
index 042bc2f..ce83162 100644 (file)
  *
  * You should have received a copy of the GNU General Public License
  * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
  *
  * GPL HEADER END
  */
@@ -27,7 +23,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2015, Intel Corporation.
+ * Copyright (c) 2011, 2017, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
 #ifndef _OBD_SUPPORT
 #define _OBD_SUPPORT
 
-#ifndef __KERNEL__
-# error Userspace should not include obd_support.h.
-#endif /* !__KERNEL__ */
-
 #include <linux/atomic.h>
+#include <linux/ctype.h>
 #include <linux/highmem.h>
 #include <linux/slab.h>
 #include <linux/types.h>
@@ -60,6 +53,7 @@ enum {
 extern unsigned int obd_debug_peer_on_timeout;
 extern unsigned int obd_dump_on_timeout;
 extern unsigned int obd_dump_on_eviction;
+extern unsigned int obd_lbug_on_eviction;
 /* obd_timeout should only be used for recovery, not for
    networking / disk / timings affected by load (use Adaptive Timeouts) */
 extern unsigned int obd_timeout;          /* seconds */
@@ -183,10 +177,12 @@ extern char obd_jobid_var[];
 #define OBD_FAIL_MDS_CONNECT_PACK        0x118
 #define OBD_FAIL_MDS_REINT_NET_REP       0x119
 #define OBD_FAIL_MDS_DISCONNECT_NET      0x11a
-#define OBD_FAIL_MDS_GETSTATUS_NET       0x11b
-#define OBD_FAIL_MDS_GETSTATUS_PACK      0x11c
+#define OBD_FAIL_MDS_GET_ROOT_NET       0x11b
+#define OBD_FAIL_MDS_GET_ROOT_PACK      0x11c
 #define OBD_FAIL_MDS_STATFS_PACK         0x11d
+#define OBD_FAIL_MDS_STATFS_SUM_PACK     0x11d
 #define OBD_FAIL_MDS_STATFS_NET          0x11e
+#define OBD_FAIL_MDS_STATFS_SUM_NET      0x11e
 #define OBD_FAIL_MDS_GETATTR_NAME_NET    0x11f
 #define OBD_FAIL_MDS_PIN_NET             0x120
 #define OBD_FAIL_MDS_UNPIN_NET           0x121
@@ -250,6 +246,11 @@ extern char obd_jobid_var[];
 #define OBD_FAIL_MDS_LLOG_CREATE_FAILED2 0x15b
 #define OBD_FAIL_MDS_FLD_LOOKUP                        0x15c
 #define OBD_FAIL_MDS_INTENT_DELAY              0x160
+#define OBD_FAIL_MDS_XATTR_REP                 0x161
+#define OBD_FAIL_MDS_TRACK_OVERFLOW     0x162
+#define OBD_FAIL_MDS_LOV_CREATE_RACE    0x163
+#define OBD_FAIL_MDS_HSM_CDT_DELAY      0x164
+#define OBD_FAIL_MDS_ORPHAN_DELETE      0x165
 
 /* layout lock */
 #define OBD_FAIL_MDS_NO_LL_GETATTR      0x170
@@ -275,6 +276,12 @@ extern char obd_jobid_var[];
 #define OBD_FAIL_OSD_COMPAT_INVALID_ENTRY              0x195
 #define OBD_FAIL_OSD_COMPAT_NO_ENTRY                   0x196
 #define OBD_FAIL_OSD_OST_EA_FID_SET                    0x197
+#define OBD_FAIL_OSD_NO_OI_ENTRY                       0x198
+#define OBD_FAIL_OSD_INDEX_CRASH                       0x199
+
+#define OBD_FAIL_OSD_TXN_START                         0x19a
+
+#define OBD_FAIL_OFD_SET_OID                           0x1e0
 
 #define OBD_FAIL_OST                     0x200
 #define OBD_FAIL_OST_CONNECT_NET         0x201
@@ -323,6 +330,18 @@ extern char obd_jobid_var[];
 #define OBD_FAIL_OST_SET_INFO_NET        0x232
 #define OBD_FAIL_OST_NODESTROY          0x233
 #define OBD_FAIL_OST_READ_SIZE          0x234
+#define OBD_FAIL_OST_LADVISE_NET        0x235
+#define OBD_FAIL_OST_PAUSE_PUNCH         0x236
+#define OBD_FAIL_OST_LADVISE_PAUSE      0x237
+#define OBD_FAIL_OST_FAKE_RW            0x238
+#define OBD_FAIL_OST_LIST_ASSERT         0x239
+#define OBD_FAIL_OST_GL_WORK_ALLOC      0x240
+#define OBD_FAIL_OST_SKIP_LV_CHECK      0x241
+#define OBD_FAIL_OST_STATFS_DELAY       0x242
+#define OBD_FAIL_OST_INTEGRITY_FAULT    0x243
+#define OBD_FAIL_OST_INTEGRITY_CMP      0x244
+#define OBD_FAIL_OST_DISCONNECT_DELAY   0x245
+#define OBD_FAIL_OST_DELAY_TRANS        0x246
 
 #define OBD_FAIL_LDLM                    0x300
 #define OBD_FAIL_LDLM_NAMESPACE_NEW      0x301
@@ -366,6 +385,9 @@ extern char obd_jobid_var[];
 #define OBD_FAIL_LDLM_WATERMARK_LOW     0x327
 #define OBD_FAIL_LDLM_WATERMARK_HIGH    0x328
 
+#define OBD_FAIL_LDLM_GRANT_CHECK        0x32a
+#define OBD_FAIL_LDLM_PROLONG_PAUSE     0x32b
+
 /* LOCKLESS IO */
 #define OBD_FAIL_LDLM_SET_CONTENTION     0x385
 
@@ -380,7 +402,7 @@ extern char obd_jobid_var[];
 #define OBD_FAIL_OSC_CHECKSUM_RECEIVE    0x408
 #define OBD_FAIL_OSC_CHECKSUM_SEND       0x409
 #define OBD_FAIL_OSC_BRW_PREP_REQ2       0x40a
-#define OBD_FAIL_OSC_CONNECT_CKSUM       0x40b
+/* #define OBD_FAIL_OSC_CONNECT_CKSUM       0x40b Obsolete since 2.9 */
 #define OBD_FAIL_OSC_CKSUM_ADLER_ONLY    0x40c
 #define OBD_FAIL_OSC_DIO_PAUSE           0x40d
 #define OBD_FAIL_OSC_OBJECT_CONTENTION   0x40e
@@ -389,6 +411,7 @@ extern char obd_jobid_var[];
 #define OBD_FAIL_OSC_NO_GRANT            0x411
 #define OBD_FAIL_OSC_DELAY_SETTIME      0x412
 #define OBD_FAIL_OSC_CONNECT_GRANT_PARAM 0x413
+#define OBD_FAIL_OSC_DELAY_IO            0x414
 
 #define OBD_FAIL_PTLRPC                  0x500
 #define OBD_FAIL_PTLRPC_ACK              0x501
@@ -412,18 +435,24 @@ extern char obd_jobid_var[];
 #define OBD_FAIL_PTLRPC_CLIENT_BULK_CB2  0x515
 #define OBD_FAIL_PTLRPC_DELAY_IMP_FULL   0x516
 #define OBD_FAIL_PTLRPC_CANCEL_RESEND    0x517
+#define OBD_FAIL_PTLRPC_DROP_BULK       0x51a
+#define OBD_FAIL_PTLRPC_LONG_REQ_UNLINK  0x51b
+#define OBD_FAIL_PTLRPC_LONG_BOTH_UNLINK 0x51c
 #define OBD_FAIL_PTLRPC_CLIENT_BULK_CB3  0x520
+#define OBD_FAIL_PTLRPC_BULK_ATTACH      0x521
+#define OBD_FAIL_PTLRPC_CONNECT_RACE    0x531
 
 #define OBD_FAIL_OBD_PING_NET            0x600
-#define OBD_FAIL_OBD_LOG_CANCEL_NET      0x601
+/*     OBD_FAIL_OBD_LOG_CANCEL_NET      0x601 obsolete since 1.5 */
 #define OBD_FAIL_OBD_LOGD_NET            0x602
 /*     OBD_FAIL_OBD_QC_CALLBACK_NET     0x603 obsolete since 2.4 */
 #define OBD_FAIL_OBD_DQACQ               0x604
 #define OBD_FAIL_OBD_LLOG_SETUP          0x605
-#define OBD_FAIL_OBD_LOG_CANCEL_REP      0x606
+/*     OBD_FAIL_OBD_LOG_CANCEL_REP      0x606 obsolete since 1.5 */
 #define OBD_FAIL_OBD_IDX_READ_NET        0x607
 #define OBD_FAIL_OBD_IDX_READ_BREAK     0x608
 #define OBD_FAIL_OBD_NO_LRU             0x609
+#define OBD_FAIL_OBDCLASS_MODULE_LOAD   0x60a
 
 #define OBD_FAIL_TGT_REPLY_NET           0x700
 #define OBD_FAIL_TGT_CONN_RACE           0x701
@@ -443,13 +472,20 @@ extern char obd_jobid_var[];
 #define OBD_FAIL_TGT_REPLAY_RECONNECT   0x715
 #define OBD_FAIL_TGT_MOUNT_RACE                 0x716
 #define OBD_FAIL_TGT_REPLAY_TIMEOUT     0x717
+#define OBD_FAIL_TGT_CLIENT_DEL                 0x718
+#define OBD_FAIL_TGT_SLUGGISH_NET       0x719
+#define OBD_FAIL_TGT_RCVD_EIO           0x720
+#define OBD_FAIL_TGT_RECOVERY_REQ_RACE  0x721
+#define OBD_FAIL_TGT_REPLY_DATA_RACE    0x722
 
 #define OBD_FAIL_MDC_REVALIDATE_PAUSE    0x800
 #define OBD_FAIL_MDC_ENQUEUE_PAUSE       0x801
 #define OBD_FAIL_MDC_OLD_EXT_FLAGS       0x802
 #define OBD_FAIL_MDC_GETATTR_ENQUEUE     0x803
-#define OBD_FAIL_MDC_RPCS_SEM           0x804
+#define OBD_FAIL_MDC_RPCS_SEM           0x804 /* deprecated */
 #define OBD_FAIL_MDC_LIGHTWEIGHT        0x805
+#define OBD_FAIL_MDC_CLOSE              0x806
+#define OBD_FAIL_MDC_MERGE              0x807
 
 #define OBD_FAIL_MGS                     0x900
 #define OBD_FAIL_MGS_ALL_REQUEST_NET     0x901
@@ -465,6 +501,7 @@ extern char obd_jobid_var[];
 #define OBD_FAIL_MGS_TARGET_DEL_NET     0x90b
 #define OBD_FAIL_MGS_CONFIG_READ_NET    0x90c
 #define OBD_FAIL_MGS_LDLM_REPLY_NET     0x90d
+#define OBD_FAIL_MGS_WRITE_TARGET_DELAY         0x90e
 
 #define OBD_FAIL_QUOTA_DQACQ_NET                       0xA01
 #define OBD_FAIL_QUOTA_EDQUOT            0xA02
@@ -488,18 +525,23 @@ extern char obd_jobid_var[];
 #define OBD_FAIL_SEC_CTX_HDL_PAUSE       0x1204
 
 #define OBD_FAIL_LLOG                               0x1300
-#define OBD_FAIL_LLOG_ORIGIN_CONNECT_NET            0x1301
+/* was OBD_FAIL_LLOG_ORIGIN_CONNECT_NET            0x1301 until 2.4 */
 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_CREATE_NET      0x1302
-#define OBD_FAIL_LLOG_ORIGIN_HANDLE_DESTROY_NET     0x1303
+/* was OBD_FAIL_LLOG_ORIGIN_HANDLE_DESTROY_NET     0x1303 until 2.11 */
 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_READ_HEADER_NET 0x1304
 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_NEXT_BLOCK_NET  0x1305
 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_PREV_BLOCK_NET  0x1306
-#define OBD_FAIL_LLOG_ORIGIN_HANDLE_WRITE_REC_NET   0x1307
-#define OBD_FAIL_LLOG_ORIGIN_HANDLE_CLOSE_NET       0x1308
-#define OBD_FAIL_LLOG_CATINFO_NET                   0x1309
+/* was OBD_FAIL_LLOG_ORIGIN_HANDLE_WRITE_REC_NET   0x1307 until 2.1 */
+/* was OBD_FAIL_LLOG_ORIGIN_HANDLE_CLOSE_NET       0x1308 until 1.8 */
+/* was OBD_FAIL_LLOG_CATINFO_NET                   0x1309 until 2.3 */
 #define OBD_FAIL_MDS_SYNC_CAPA_SL                   0x1310
 #define OBD_FAIL_SEQ_ALLOC                          0x1311
 #define OBD_FAIL_CAT_RECORDS                       0x1312
+#define OBD_FAIL_CAT_FREE_RECORDS                  0x1313
+#define OBD_FAIL_TIME_IN_CHLOG_USER                0x1314
+#define CFS_FAIL_CHLOG_USER_REG_UNREG_RACE         0x1315
+#define OBD_FAIL_FORCE_GC_THREAD                   0x1316
+#define OBD_FAIL_LLOG_PROCESS_TIMEOUT              0x1317
 
 #define OBD_FAIL_LLITE                              0x1400
 #define OBD_FAIL_LLITE_FAULT_TRUNC_RACE             0x1401
@@ -510,6 +552,13 @@ extern char obd_jobid_var[];
 #define OBD_FAIL_MAKE_LOVEA_HOLE                   0x1406
 #define OBD_FAIL_LLITE_LOST_LAYOUT                 0x1407
 #define OBD_FAIL_LLITE_NO_CHECK_DEAD               0x1408
+#define OBD_FAIL_GETATTR_DELAY                     0x1409
+#define OBD_FAIL_LLITE_CREATE_FILE_PAUSE           0x1409
+#define OBD_FAIL_LLITE_NEWNODE_PAUSE               0x140a
+#define OBD_FAIL_LLITE_SETDIRSTRIPE_PAUSE          0x140b
+#define OBD_FAIL_LLITE_CREATE_NODE_PAUSE           0x140c
+#define OBD_FAIL_LLITE_IMUTEX_SEC                  0x140e
+#define OBD_FAIL_LLITE_IMUTEX_NOSEC                0x140f
 
 #define OBD_FAIL_FID_INDIR     0x1501
 #define OBD_FAIL_FID_INLMA     0x1502
@@ -552,15 +601,17 @@ extern char obd_jobid_var[];
 #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_ASSISTANT_DIRECT        0x162d
+#define OBD_FAIL_LFSCK_ENGINE_DELAY    0x162d
+#define OBD_FAIL_LFSCK_LOST_MDTOBJ2    0x162e
+#define OBD_FAIL_LFSCK_BAD_PFL_RANGE   0x162f
+#define OBD_FAIL_LFSCK_NO_AGENTOBJ     0x1630
+#define OBD_FAIL_LFSCK_NO_AGENTENT     0x1631
 
 #define OBD_FAIL_LFSCK_NOTIFY_NET      0x16f0
 #define OBD_FAIL_LFSCK_QUERY_NET       0x16f1
@@ -574,14 +625,17 @@ extern char obd_jobid_var[];
 #define OBD_FAIL_INVALIDATE_UPDATE     0x1705
 
 /* MIGRATE */
-#define OBD_FAIL_MIGRATE_NET_REP               0x1800
 #define OBD_FAIL_MIGRATE_ENTRIES               0x1801
-#define OBD_FAIL_MIGRATE_LINKEA                        0x1802
-#define OBD_FAIL_MIGRATE_DELAY                 0x1803
 
 /* LMV */
 #define OBD_FAIL_UNKNOWN_LMV_STRIPE            0x1901
 
+/* FLR */
+#define OBD_FAIL_FLR_GLIMPSE_IMMUTABLE         0x1A00
+#define OBD_FAIL_FLR_LV_DELAY                  0x1A01
+#define OBD_FAIL_FLR_LV_INC                    0x1A02
+#define OBD_FAIL_FLR_RANDOM_PICK_MIRROR        0x1A03
+
 /* DT */
 #define OBD_FAIL_DT_DECLARE_ATTR_GET           0x2000
 #define OBD_FAIL_DT_ATTR_GET                   0x2001
@@ -608,10 +662,23 @@ extern char obd_jobid_var[];
 #define OBD_FAIL_DT_DECLARE_DELETE             0x2016
 #define OBD_FAIL_DT_DELETE                     0x2017
 #define OBD_FAIL_DT_LOOKUP                     0x2018
+#define OBD_FAIL_DT_TXN_STOP                   0x2019
 
 #define OBD_FAIL_OSP_CHECK_INVALID_REC         0x2100
 #define OBD_FAIL_OSP_CHECK_ENOMEM              0x2101
+#define OBD_FAIL_OSP_FAKE_PRECREATE            0x2102
+#define OBD_FAIL_OSP_RPCS_SEM                  0x2104
+
+ /* barrier */
+#define OBD_FAIL_MGS_BARRIER_READ_NET          0x2200
+#define OBD_FAIL_MGS_BARRIER_NOTIFY_NET                0x2201
+
+#define OBD_FAIL_BARRIER_DELAY                 0x2202
+#define OBD_FAIL_BARRIER_FAILURE               0x2203
+
+#define OBD_FAIL_OSD_FAIL_AT_TRUNCATE          0x2301
 
+/* LNet is allocated failure locations 0xe000 to 0xffff */
 /* 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)
@@ -693,11 +760,13 @@ static inline void obd_memory_sub(long size)
 
 #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 (likely((ptr) != NULL))                                            \
-               OBD_ALLOC_POST(ptr, size, "kmalloced");                       \
+       if (cptab)                                                            \
+               ptr = cfs_cpt_malloc((cptab), (cpt), (size),                  \
+                                    (flags) | __GFP_ZERO | __GFP_NOWARN);    \
+       if (!(cptab) || unlikely(!(ptr))) /* retry without CPT if failure */  \
+               ptr = kmalloc(size, (flags) | __GFP_ZERO);                    \
+       if (likely((ptr) != NULL))                                            \
+               OBD_ALLOC_POST((ptr), (size), "kmalloced");                   \
 } while (0)
 
 #define OBD_ALLOC_GFP(ptr, size, gfp_mask)                                   \
@@ -730,7 +799,7 @@ do {                                                                              \
        if (unlikely((ptr) == NULL)) {                                        \
                CERROR("vmalloc of '" #ptr "' (%d bytes) failed\n",           \
                       (int)(size));                                          \
-               CERROR(LPU64" total bytes allocated by Lustre, %d by LNET\n", \
+               CERROR("%llu total bytes allocated by Lustre, %d by LNET\n", \
                       obd_memory_sum(), atomic_read(&libcfs_kmemory));       \
        } else {                                                              \
                OBD_ALLOC_POST(ptr, size, "vmalloced");                       \
@@ -744,7 +813,11 @@ do {                                                                             \
 
 #define OBD_ALLOC_LARGE(ptr, size)                                            \
 do {                                                                          \
-       OBD_ALLOC_GFP(ptr, size, GFP_NOFS | __GFP_NOWARN);                    \
+       /* LU-8196 - force large allocations to use vmalloc, not kmalloc */   \
+       if ((size) > KMALLOC_MAX_SIZE)                                          \
+               ptr = NULL;                                                   \
+       else                                                                  \
+               OBD_ALLOC_GFP(ptr, size, GFP_NOFS | __GFP_NOWARN);            \
        if (ptr == NULL)                                                      \
                 OBD_VMALLOC(ptr, size);                                       \
 } while (0)
@@ -765,7 +838,7 @@ do {                                                                              \
 #endif
 
 #ifdef POISON_BULK
-#define POISON_PAGE(page, val) do { memset(kmap(page), val, PAGE_CACHE_SIZE); \
+#define POISON_PAGE(page, val) do { memset(kmap(page), val, PAGE_SIZE); \
                                     kunmap(page); } while (0)
 #else
 #define POISON_PAGE(page, val) do { } while (0)
@@ -858,4 +931,16 @@ do {                                                                          \
 #define KEY_IS(str) \
         (keylen >= (sizeof(str)-1) && memcmp(key, str, (sizeof(str)-1)) == 0)
 
+/* LUSTRE_LMA_FL_MASKS defines which flags will be stored in LMA */
+
+static inline int lma_to_lustre_flags(__u32 lma_flags)
+{
+       return (lma_flags & LMAI_ORPHAN) ? LUSTRE_ORPHAN_FL : 0;
+}
+
+static inline int lustre_to_lma_flags(__u32 la_flags)
+{
+       return (la_flags & LUSTRE_ORPHAN_FL) ? LMAI_ORPHAN : 0;
+}
+
 #endif