foo

Documentation/accounting/delay-accounting.rst

@@ -100,29 +100,29 @@ Get delays, since system boot, for pid 10::
 	# ./getdelays -d -p 10
 	(output similar to next case)
 
-Get sum of delays, since system boot, for all pids with tgid 5::
+Get sum and peak of delays, since system boot, for all pids with tgid 242::
 
-	# ./getdelays -d -t 5
+	bash-4.4# ./getdelays -d -t 242
 	print delayacct stats ON
-	TGID	5
-
-
-	CPU             count     real total  virtual total    delay total  delay average
-	                    8        7000000        6872122        3382277          0.423ms
-	IO              count    delay total  delay average
-                   0              0          0.000ms
-	SWAP            count    delay total  delay average
-                       0              0          0.000ms
-	RECLAIM         count    delay total  delay average
-                   0              0          0.000ms
-	THRASHING       count    delay total  delay average
-                       0              0          0.000ms
-	COMPACT         count    delay total  delay average
-                       0              0          0.000ms
-	WPCOPY          count    delay total  delay average
-                       0              0          0.000ms
-	IRQ             count    delay total  delay average
-                       0              0          0.000ms
+	TGID    242
+
+
+	CPU         count     real total  virtual total    delay total  delay average      delay max
+	              239      296000000      307724885        1127792          0.005ms     0.238382ms
+	IO          count    delay total  delay average      delay max
+	                0              0          0.000ms     0.000000ms
+	SWAP        count    delay total  delay average      delay max
+	                0              0          0.000ms     0.000000ms
+	RECLAIM     count    delay total  delay average      delay max
+	                0              0          0.000ms     0.000000ms
+	THRASHING   count    delay total  delay average      delay max
+	                0              0          0.000ms     0.000000ms
+	COMPACT     count    delay total  delay average      delay max
+	                0              0          0.000ms     0.000000ms
+	WPCOPY      count    delay total  delay average      delay max
+	              230       19100476          0.083ms     0.383822ms
+	IRQ         count    delay total  delay average      delay max
+	                0              0          0.000ms     0.000000ms
 
 Get IO accounting for pid 1, it works only with -p::
 

Documentation/core-api/min_heap.rst

@@ -4,6 +4,8 @@
 Min Heap API
 ============
 
+:Author: Kuan-Wei Chiu <[email protected]>
+
 Introduction
 ============
 

Documentation/core-api/xarray.rst

@@ -42,8 +42,8 @@ call xa_tag_pointer() to create an entry with a tag, xa_untag_pointer()
 to turn a tagged entry back into an untagged pointer and xa_pointer_tag()
 to retrieve the tag of an entry.  Tagged pointers use the same bits that
 are used to distinguish value entries from normal pointers, so you must
-decide whether they want to store value entries or tagged pointers in
-any particular XArray.
+decide whether you want to store value entries or tagged pointers in any
+particular XArray.
 
 The XArray does not support storing IS_ERR() pointers as some
 conflict with value entries or internal entries.
@@ -52,8 +52,9 @@ An unusual feature of the XArray is the ability to create entries which
 occupy a range of indices.  Once stored to, looking up any index in
 the range will return the same entry as looking up any other index in
 the range.  Storing to any index will store to all of them.  Multi-index
-entries can be explicitly split into smaller entries, or storing ``NULL``
-into any entry will cause the XArray to forget about the range.
+entries can be explicitly split into smaller entries. Unsetting (using
+xa_erase() or xa_store() with ``NULL``) any entry will cause the XArray
+to forget about the range.
 
 Normal API
 ==========
@@ -63,13 +64,14 @@ for statically allocated XArrays or xa_init() for dynamically
 allocated ones.  A freshly-initialised XArray contains a ``NULL``
 pointer at every index.
 
-You can then set entries using xa_store() and get entries
-using xa_load().  xa_store will overwrite any entry with the
-new entry and return the previous entry stored at that index.  You can
-use xa_erase() instead of calling xa_store() with a
-``NULL`` entry.  There is no difference between an entry that has never
-been stored to, one that has been erased and one that has most recently
-had ``NULL`` stored to it.
+You can then set entries using xa_store() and get entries using
+xa_load().  xa_store() will overwrite any entry with the new entry and
+return the previous entry stored at that index.  You can unset entries
+using xa_erase() or by setting the entry to ``NULL`` using xa_store().
+There is no difference between an entry that has never been stored to
+and one that has been erased with xa_erase(); an entry that has most
+recently had ``NULL`` stored to it is also equivalent except if the
+XArray was initialized with ``XA_FLAGS_ALLOC``.
 
 You can conditionally replace an entry at an index by using
 xa_cmpxchg().  Like cmpxchg(), it will only succeed if

arch/alpha/lib/fpreg.c

@@ -10,7 +10,6 @@
 #include <linux/preempt.h>
 #include <asm/fpu.h>
 #include <asm/thread_info.h>
-#include <asm/fpu.h>
 
 #if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67)
 #define STT(reg,val)  asm volatile ("ftoit $f"#reg",%0" : "=r"(val));

arch/arm/mach-pxa/sharpsl_pm.c

@@ -31,10 +31,10 @@
 /*
  * Constants
  */
-#define SHARPSL_CHARGE_ON_TIME_INTERVAL        (msecs_to_jiffies(1*60*1000))  /* 1 min */
-#define SHARPSL_CHARGE_FINISH_TIME             (msecs_to_jiffies(10*60*1000)) /* 10 min */
-#define SHARPSL_BATCHK_TIME                    (msecs_to_jiffies(15*1000))    /* 15 sec */
-#define SHARPSL_BATCHK_TIME_SUSPEND            (60*10)                        /* 10 min */
+#define SHARPSL_CHARGE_ON_TIME_INTERVAL        (secs_to_jiffies(60))
+#define SHARPSL_CHARGE_FINISH_TIME             (secs_to_jiffies(10*60))
+#define SHARPSL_BATCHK_TIME                    (secs_to_jiffies(15))
+#define SHARPSL_BATCHK_TIME_SUSPEND            (60*10) /* 10 min */
 
 #define SHARPSL_WAIT_CO_TIME                   15  /* 15 sec */
 #define SHARPSL_WAIT_DISCHARGE_ON              100 /* 100 msec */

arch/m68k/configs/amiga_defconfig

@@ -629,7 +629,6 @@ CONFIG_TEST_PRINTF=m
 CONFIG_TEST_SCANF=m
 CONFIG_TEST_BITMAP=m
 CONFIG_TEST_UUID=m
-CONFIG_TEST_XARRAY=m
 CONFIG_TEST_MAPLE_TREE=m
 CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_IDA=m

arch/m68k/configs/apollo_defconfig

@@ -586,7 +586,6 @@ CONFIG_TEST_PRINTF=m
 CONFIG_TEST_SCANF=m
 CONFIG_TEST_BITMAP=m
 CONFIG_TEST_UUID=m
-CONFIG_TEST_XARRAY=m
 CONFIG_TEST_MAPLE_TREE=m
 CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_IDA=m

arch/m68k/configs/atari_defconfig

@@ -606,7 +606,6 @@ CONFIG_TEST_PRINTF=m
 CONFIG_TEST_SCANF=m
 CONFIG_TEST_BITMAP=m
 CONFIG_TEST_UUID=m
-CONFIG_TEST_XARRAY=m
 CONFIG_TEST_MAPLE_TREE=m
 CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_IDA=m

arch/m68k/configs/bvme6000_defconfig

@@ -578,7 +578,6 @@ CONFIG_TEST_PRINTF=m
 CONFIG_TEST_SCANF=m
 CONFIG_TEST_BITMAP=m
 CONFIG_TEST_UUID=m
-CONFIG_TEST_XARRAY=m
 CONFIG_TEST_MAPLE_TREE=m
 CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_IDA=m

arch/m68k/configs/hp300_defconfig

@@ -588,7 +588,6 @@ CONFIG_TEST_PRINTF=m
 CONFIG_TEST_SCANF=m
 CONFIG_TEST_BITMAP=m
 CONFIG_TEST_UUID=m
-CONFIG_TEST_XARRAY=m
 CONFIG_TEST_MAPLE_TREE=m
 CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_IDA=m

arch/m68k/configs/mac_defconfig

@@ -605,7 +605,6 @@ CONFIG_TEST_PRINTF=m
 CONFIG_TEST_SCANF=m
 CONFIG_TEST_BITMAP=m
 CONFIG_TEST_UUID=m
-CONFIG_TEST_XARRAY=m
 CONFIG_TEST_MAPLE_TREE=m
 CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_IDA=m

arch/m68k/configs/multi_defconfig

@@ -692,7 +692,6 @@ CONFIG_TEST_PRINTF=m
 CONFIG_TEST_SCANF=m
 CONFIG_TEST_BITMAP=m
 CONFIG_TEST_UUID=m
-CONFIG_TEST_XARRAY=m
 CONFIG_TEST_MAPLE_TREE=m
 CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_IDA=m

arch/m68k/configs/mvme147_defconfig

@@ -578,7 +578,6 @@ CONFIG_TEST_PRINTF=m
 CONFIG_TEST_SCANF=m
 CONFIG_TEST_BITMAP=m
 CONFIG_TEST_UUID=m
-CONFIG_TEST_XARRAY=m
 CONFIG_TEST_MAPLE_TREE=m
 CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_IDA=m

arch/m68k/configs/mvme16x_defconfig

@@ -579,7 +579,6 @@ CONFIG_TEST_PRINTF=m
 CONFIG_TEST_SCANF=m
 CONFIG_TEST_BITMAP=m
 CONFIG_TEST_UUID=m
-CONFIG_TEST_XARRAY=m
 CONFIG_TEST_MAPLE_TREE=m
 CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_IDA=m

arch/m68k/configs/q40_defconfig

@@ -595,7 +595,6 @@ CONFIG_TEST_PRINTF=m
 CONFIG_TEST_SCANF=m
 CONFIG_TEST_BITMAP=m
 CONFIG_TEST_UUID=m
-CONFIG_TEST_XARRAY=m
 CONFIG_TEST_MAPLE_TREE=m
 CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_IDA=m

arch/m68k/configs/sun3_defconfig

@@ -575,7 +575,6 @@ CONFIG_TEST_PRINTF=m
 CONFIG_TEST_SCANF=m
 CONFIG_TEST_BITMAP=m
 CONFIG_TEST_UUID=m
-CONFIG_TEST_XARRAY=m
 CONFIG_TEST_MAPLE_TREE=m
 CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_IDA=m

arch/m68k/configs/sun3x_defconfig

@@ -576,7 +576,6 @@ CONFIG_TEST_PRINTF=m
 CONFIG_TEST_SCANF=m
 CONFIG_TEST_BITMAP=m
 CONFIG_TEST_UUID=m
-CONFIG_TEST_XARRAY=m
 CONFIG_TEST_MAPLE_TREE=m
 CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_IDA=m

arch/powerpc/configs/ppc64_defconfig

@@ -451,7 +451,6 @@ CONFIG_TEST_PRINTF=m
 CONFIG_TEST_SCANF=m
 CONFIG_TEST_BITMAP=m
 CONFIG_TEST_UUID=m
-CONFIG_TEST_XARRAY=m
 CONFIG_TEST_MAPLE_TREE=m
 CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_IDA=m

arch/powerpc/kvm/book3s_hv.c

@@ -4957,7 +4957,7 @@ int kvmhv_run_single_vcpu(struct kvm_vcpu *vcpu, u64 time_limit,
 			 * states are synchronized from L0 to L1. L1 needs to inform L0 about
 			 * MER=1 only when there are pending external interrupts.
 			 * In the above if check, MER bit is set if there are pending
-			 * external interrupts. Hence, explicity mask off MER bit
+			 * external interrupts. Hence, explicitly mask off MER bit
 			 * here as otherwise it may generate spurious interrupts in L2 KVM
 			 * causing an endless loop, which results in L2 guest getting hung.
 			 */

arch/powerpc/platforms/pseries/papr_scm.c

@@ -544,7 +544,7 @@ static int drc_pmem_query_health(struct papr_scm_priv *p)
 
 	/* Jiffies offset for which the health data is assumed to be same */
 	cache_timeout = p->lasthealth_jiffies +
-		msecs_to_jiffies(MIN_HEALTH_QUERY_INTERVAL * 1000);
+		secs_to_jiffies(MIN_HEALTH_QUERY_INTERVAL);
 
 	/* Fetch new health info is its older than MIN_HEALTH_QUERY_INTERVAL */
 	if (time_after(jiffies, cache_timeout))

arch/s390/kernel/lgr.c

@@ -166,7 +166,7 @@ static struct timer_list lgr_timer;
  */
 static void lgr_timer_set(void)
 {
-	mod_timer(&lgr_timer, jiffies + msecs_to_jiffies(LGR_TIMER_INTERVAL_SECS * MSEC_PER_SEC));
+	mod_timer(&lgr_timer, jiffies + secs_to_jiffies(LGR_TIMER_INTERVAL_SECS));
 }
 
 /*

arch/s390/kernel/time.c

@@ -662,12 +662,12 @@ static void stp_check_leap(void)
 		if (ret < 0)
 			pr_err("failed to set leap second flags\n");
 		/* arm Timer to clear leap second flags */
-		mod_timer(&stp_timer, jiffies + msecs_to_jiffies(14400 * MSEC_PER_SEC));
+		mod_timer(&stp_timer, jiffies + secs_to_jiffies(14400));
 	} else {
 		/* The day the leap second is scheduled for hasn't been reached. Retry
 		 * in one hour.
 		 */
-		mod_timer(&stp_timer, jiffies + msecs_to_jiffies(3600 * MSEC_PER_SEC));
+		mod_timer(&stp_timer, jiffies + secs_to_jiffies(3600));
 	}
 }
 

arch/s390/kernel/topology.c

@@ -371,7 +371,7 @@ static void set_topology_timer(void)
 	if (atomic_add_unless(&topology_poll, -1, 0))
 		mod_timer(&topology_timer, jiffies + msecs_to_jiffies(100));
 	else
-		mod_timer(&topology_timer, jiffies + msecs_to_jiffies(60 * MSEC_PER_SEC));
+		mod_timer(&topology_timer, jiffies + secs_to_jiffies(60));
 }
 
 void topology_expect_change(void)

arch/s390/mm/cmm.c

@@ -204,7 +204,7 @@ static void cmm_set_timer(void)
 			del_timer(&cmm_timer);
 		return;
 	}
-	mod_timer(&cmm_timer, jiffies + msecs_to_jiffies(cmm_timeout_seconds * MSEC_PER_SEC));
+	mod_timer(&cmm_timer, jiffies + secs_to_jiffies(cmm_timeout_seconds));
 }
 
 static void cmm_timer_fn(struct timer_list *unused)

drivers/accel/habanalabs/common/device.c

@@ -817,7 +817,7 @@ static void device_hard_reset_pending(struct work_struct *work)
 		}
 
 		queue_delayed_work(hdev->reset_wq, &device_reset_work->reset_work,
-					msecs_to_jiffies(HL_PENDING_RESET_PER_SEC * 1000));
+					secs_to_jiffies(HL_PENDING_RESET_PER_SEC));
 	}
 }
 

drivers/accel/habanalabs/common/habanalabs_drv.c

@@ -362,8 +362,7 @@ static void fixup_device_params_per_asic(struct hl_device *hdev, int timeout)
 		 * a different default timeout for Gaudi
 		 */
 		if (timeout == HL_DEFAULT_TIMEOUT_LOCKED)
-			hdev->timeout_jiffies = msecs_to_jiffies(GAUDI_DEFAULT_TIMEOUT_LOCKED *
-										MSEC_PER_SEC);
+			hdev->timeout_jiffies = secs_to_jiffies(GAUDI_DEFAULT_TIMEOUT_LOCKED);
 
 		hdev->reset_upon_device_release = 0;
 		break;

drivers/block/xen-blkback/blkback.c

@@ -544,7 +544,7 @@ static void print_stats(struct xen_blkif_ring *ring)
 		 ring->st_rd_req, ring->st_wr_req,
 		 ring->st_f_req, ring->st_ds_req,
 		 ring->persistent_gnt_c, max_pgrants);
-	ring->st_print = jiffies + msecs_to_jiffies(10 * 1000);
+	ring->st_print = jiffies + secs_to_jiffies(10);
 	ring->st_rd_req = 0;
 	ring->st_wr_req = 0;
 	ring->st_oo_req = 0;

drivers/gpu/drm/xe/xe_device.c

@@ -514,7 +514,7 @@ static int wait_for_lmem_ready(struct xe_device *xe)
 	drm_dbg(&xe->drm, "Waiting for lmem initialization\n");
 
 	start = jiffies;
-	timeout = start + msecs_to_jiffies(60 * 1000); /* 60 sec! */
+	timeout = start + secs_to_jiffies(60); /* 60 sec! */
 
 	do {
 		if (signal_pending(current))

drivers/infiniband/hw/hfi1/iowait.h

@@ -92,7 +92,7 @@ struct iowait_work {
  *
  * The lock field is used by waiters to record
  * the seqlock_t that guards the list head.
- * Waiters explicity know that, but the destroy
+ * Waiters explicitly know that, but the destroy
  * code that unwaits QPs does not.
  */
 struct iowait {

drivers/infiniband/hw/usnic/usnic_abi.h

@@ -72,7 +72,7 @@ struct usnic_ib_create_qp_resp {
 	u64				bar_bus_addr;
 	u32				bar_len;
 /*
- * WQ, RQ, CQ are explicity specified bc exposing a generic resources inteface
+ * WQ, RQ, CQ are explicitly specified bc exposing a generic resources inteface
  * expands the scope of ABI to many files.
  */
 	u32				wq_cnt;

drivers/net/wireless/ath/ath11k/debugfs.c

@@ -178,7 +178,7 @@ static int ath11k_debugfs_fw_stats_request(struct ath11k *ar,
 	 * received 'update stats' event, we keep a 3 seconds timeout in case,
 	 * fw_stats_done is not marked yet
 	 */
-	timeout = jiffies + msecs_to_jiffies(3 * 1000);
+	timeout = jiffies + secs_to_jiffies(3);
 
 	ath11k_debugfs_fw_stats_reset(ar);
 

drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c

@@ -1810,7 +1810,7 @@ void brcmf_fws_rxreorder(struct brcmf_if *ifp, struct sk_buff *pkt)
 			rfi->cur_idx = cur_idx;
 		}
 	} else {
-		/* explicity window move updating the expected index */
+		/* explicitly window move updating the expected index */
 		exp_idx = reorder_data[BRCMF_RXREORDER_EXPIDX_OFFSET];
 
 		brcmf_dbg(DATA, "flow-%d (0x%x): change expected: %d -> %d\n",

drivers/scsi/arcmsr/arcmsr_hba.c

@@ -1044,7 +1044,7 @@ static void arcmsr_init_get_devmap_timer(struct AdapterControlBlock *pacb)
 static void arcmsr_init_set_datetime_timer(struct AdapterControlBlock *pacb)
 {
 	timer_setup(&pacb->refresh_timer, arcmsr_set_iop_datetime, 0);
-	pacb->refresh_timer.expires = jiffies + msecs_to_jiffies(60 * 1000);
+	pacb->refresh_timer.expires = jiffies + secs_to_jiffies(60);
 	add_timer(&pacb->refresh_timer);
 }
 

drivers/scsi/cxlflash/superpipe.c

@@ -966,7 +966,7 @@ static int cxlflash_disk_detach(struct scsi_device *sdev, void *detach)
  *
  * This routine is the release handler for the fops registered with
  * the CXL services on an initial attach for a context. It is called
- * when a close (explicity by the user or as part of a process tear
+ * when a close (explicitly by the user or as part of a process tear
  * down) is performed on the adapter file descriptor returned to the
  * user. The user should be aware that explicitly performing a close
  * considered catastrophic and subsequent usage of the superpipe API