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Merge 4.4.147 into android-4.4
authorGreg Kroah-Hartman <gregkh@google.com>
Thu, 9 Aug 2018 14:04:22 +0000 (16:04 +0200)
committerGreg Kroah-Hartman <gregkh@google.com>
Thu, 9 Aug 2018 14:04:22 +0000 (16:04 +0200)
Changes in 4.4.147
scsi: qla2xxx: Fix ISP recovery on unload
scsi: qla2xxx: Return error when TMF returns
genirq: Make force irq threading setup more robust
nohz: Fix local_timer_softirq_pending()
netlink: Do not subscribe to non-existent groups
netlink: Don't shift with UB on nlk->ngroups
netlink: Don't shift on 64 for ngroups
ext4: fix false negatives *and* false positives in ext4_check_descriptors()
ACPI / PCI: Bail early in acpi_pci_add_bus() if there is no ACPI handle
ring_buffer: tracing: Inherit the tracing setting to next ring buffer
i2c: imx: Fix reinit_completion() use
jfs: Fix inconsistency between memory allocation and ea_buf->max_size
Linux 4.4.147

Change-Id: I067f9844278976dddef8063961a70e189c423de3
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
13 files changed:
Makefile
drivers/i2c/busses/i2c-imx.c
drivers/pci/pci-acpi.c
drivers/scsi/qla2xxx/qla_init.c
drivers/scsi/qla2xxx/qla_os.c
fs/ext4/super.c
fs/jfs/xattr.c
include/linux/ring_buffer.h
kernel/irq/manage.c
kernel/time/tick-sched.c
kernel/trace/ring_buffer.c
kernel/trace/trace.c
net/netlink/af_netlink.c

index 3a44e80..6aa30c1 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 4
 PATCHLEVEL = 4
-SUBLEVEL = 146
+SUBLEVEL = 147
 EXTRAVERSION =
 NAME = Blurry Fish Butt
 
index d4d8536..a4abf7d 100644 (file)
@@ -382,6 +382,7 @@ static int i2c_imx_dma_xfer(struct imx_i2c_struct *i2c_imx,
                goto err_desc;
        }
 
+       reinit_completion(&dma->cmd_complete);
        txdesc->callback = i2c_imx_dma_callback;
        txdesc->callback_param = i2c_imx;
        if (dma_submit_error(dmaengine_submit(txdesc))) {
@@ -631,7 +632,6 @@ static int i2c_imx_dma_write(struct imx_i2c_struct *i2c_imx,
         * The first byte must be transmitted by the CPU.
         */
        imx_i2c_write_reg(msgs->addr << 1, i2c_imx, IMX_I2C_I2DR);
-       reinit_completion(&i2c_imx->dma->cmd_complete);
        time_left = wait_for_completion_timeout(
                                &i2c_imx->dma->cmd_complete,
                                msecs_to_jiffies(DMA_TIMEOUT));
@@ -690,7 +690,6 @@ static int i2c_imx_dma_read(struct imx_i2c_struct *i2c_imx,
        if (result)
                return result;
 
-       reinit_completion(&i2c_imx->dma->cmd_complete);
        time_left = wait_for_completion_timeout(
                                &i2c_imx->dma->cmd_complete,
                                msecs_to_jiffies(DMA_TIMEOUT));
index a32ba75..afaf134 100644 (file)
@@ -543,7 +543,7 @@ void acpi_pci_add_bus(struct pci_bus *bus)
        union acpi_object *obj;
        struct pci_host_bridge *bridge;
 
-       if (acpi_pci_disabled || !bus->bridge)
+       if (acpi_pci_disabled || !bus->bridge || !ACPI_HANDLE(bus->bridge))
                return;
 
        acpi_pci_slot_enumerate(bus);
index a9eb3cd..41a6466 100644 (file)
@@ -325,11 +325,10 @@ qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint32_t lun,
 
        wait_for_completion(&tm_iocb->u.tmf.comp);
 
-       rval = tm_iocb->u.tmf.comp_status == CS_COMPLETE ?
-           QLA_SUCCESS : QLA_FUNCTION_FAILED;
+       rval = tm_iocb->u.tmf.data;
 
-       if ((rval != QLA_SUCCESS) || tm_iocb->u.tmf.data) {
-               ql_dbg(ql_dbg_taskm, vha, 0x8030,
+       if (rval != QLA_SUCCESS) {
+               ql_log(ql_log_warn, vha, 0x8030,
                    "TM IOCB failed (%x).\n", rval);
        }
 
index 5cbf20a..18b1974 100644 (file)
@@ -4938,8 +4938,9 @@ qla2x00_do_dpc(void *data)
                        }
                }
 
-               if (test_and_clear_bit(ISP_ABORT_NEEDED,
-                                               &base_vha->dpc_flags)) {
+               if (test_and_clear_bit
+                   (ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
+                   !test_bit(UNLOADING, &base_vha->dpc_flags)) {
 
                        ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
                            "ISP abort scheduled.\n");
index c5ba22b..a26b71d 100644 (file)
@@ -2101,7 +2101,7 @@ static int ext4_check_descriptors(struct super_block *sb,
        struct ext4_sb_info *sbi = EXT4_SB(sb);
        ext4_fsblk_t first_block = le32_to_cpu(sbi->s_es->s_first_data_block);
        ext4_fsblk_t last_block;
-       ext4_fsblk_t last_bg_block = sb_block + ext4_bg_num_gdb(sb, 0) + 1;
+       ext4_fsblk_t last_bg_block = sb_block + ext4_bg_num_gdb(sb, 0);
        ext4_fsblk_t block_bitmap;
        ext4_fsblk_t inode_bitmap;
        ext4_fsblk_t inode_table;
@@ -3776,13 +3776,13 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
                        goto failed_mount2;
                }
        }
+       sbi->s_gdb_count = db_count;
        if (!ext4_check_descriptors(sb, logical_sb_block, &first_not_zeroed)) {
                ext4_msg(sb, KERN_ERR, "group descriptors corrupted!");
                ret = -EFSCORRUPTED;
                goto failed_mount2;
        }
 
-       sbi->s_gdb_count = db_count;
        get_random_bytes(&sbi->s_next_generation, sizeof(u32));
        spin_lock_init(&sbi->s_next_gen_lock);
 
index 48b15a6..40a26a5 100644 (file)
@@ -493,15 +493,17 @@ static int ea_get(struct inode *inode, struct ea_buffer *ea_buf, int min_size)
        if (size > PSIZE) {
                /*
                 * To keep the rest of the code simple.  Allocate a
-                * contiguous buffer to work with
+                * contiguous buffer to work with. Make the buffer large
+                * enough to make use of the whole extent.
                 */
-               ea_buf->xattr = kmalloc(size, GFP_KERNEL);
+               ea_buf->max_size = (size + sb->s_blocksize - 1) &
+                   ~(sb->s_blocksize - 1);
+
+               ea_buf->xattr = kmalloc(ea_buf->max_size, GFP_KERNEL);
                if (ea_buf->xattr == NULL)
                        return -ENOMEM;
 
                ea_buf->flag = EA_MALLOC;
-               ea_buf->max_size = (size + sb->s_blocksize - 1) &
-                   ~(sb->s_blocksize - 1);
 
                if (ea_size == 0)
                        return 0;
index 4acc552..19d0778 100644 (file)
@@ -162,6 +162,7 @@ void ring_buffer_record_enable(struct ring_buffer *buffer);
 void ring_buffer_record_off(struct ring_buffer *buffer);
 void ring_buffer_record_on(struct ring_buffer *buffer);
 int ring_buffer_record_is_on(struct ring_buffer *buffer);
+int ring_buffer_record_is_set_on(struct ring_buffer *buffer);
 void ring_buffer_record_disable_cpu(struct ring_buffer *buffer, int cpu);
 void ring_buffer_record_enable_cpu(struct ring_buffer *buffer, int cpu);
 
index 5f55a8b..0df2b44 100644 (file)
@@ -1012,6 +1012,13 @@ static int irq_setup_forced_threading(struct irqaction *new)
        if (new->flags & (IRQF_NO_THREAD | IRQF_PERCPU | IRQF_ONESHOT))
                return 0;
 
+       /*
+        * No further action required for interrupts which are requested as
+        * threaded interrupts already
+        */
+       if (new->handler == irq_default_primary_handler)
+               return 0;
+
        new->flags |= IRQF_ONESHOT;
 
        /*
@@ -1019,7 +1026,7 @@ static int irq_setup_forced_threading(struct irqaction *new)
         * thread handler. We force thread them as well by creating a
         * secondary action.
         */
-       if (new->handler != irq_default_primary_handler && new->thread_fn) {
+       if (new->handler && new->thread_fn) {
                /* Allocate the secondary action */
                new->secondary = kzalloc(sizeof(struct irqaction), GFP_KERNEL);
                if (!new->secondary)
index a935cbd..4cd1145 100644 (file)
@@ -570,7 +570,7 @@ static void tick_nohz_restart(struct tick_sched *ts, ktime_t now)
 
 static inline bool local_timer_softirq_pending(void)
 {
-       return local_softirq_pending() & TIMER_SOFTIRQ;
+       return local_softirq_pending() & BIT(TIMER_SOFTIRQ);
 }
 
 static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts,
index d9cd619..fdaa88f 100644 (file)
@@ -3142,6 +3142,22 @@ int ring_buffer_record_is_on(struct ring_buffer *buffer)
 }
 
 /**
+ * ring_buffer_record_is_set_on - return true if the ring buffer is set writable
+ * @buffer: The ring buffer to see if write is set enabled
+ *
+ * Returns true if the ring buffer is set writable by ring_buffer_record_on().
+ * Note that this does NOT mean it is in a writable state.
+ *
+ * It may return true when the ring buffer has been disabled by
+ * ring_buffer_record_disable(), as that is a temporary disabling of
+ * the ring buffer.
+ */
+int ring_buffer_record_is_set_on(struct ring_buffer *buffer)
+{
+       return !(atomic_read(&buffer->record_disabled) & RB_BUFFER_OFF);
+}
+
+/**
  * ring_buffer_record_disable_cpu - stop all writes into the cpu_buffer
  * @buffer: The ring buffer to stop writes to.
  * @cpu: The CPU buffer to stop
index 293faa2..6627647 100644 (file)
@@ -1089,6 +1089,12 @@ update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu)
 
        arch_spin_lock(&tr->max_lock);
 
+       /* Inherit the recordable setting from trace_buffer */
+       if (ring_buffer_record_is_set_on(tr->trace_buffer.buffer))
+               ring_buffer_record_on(tr->max_buffer.buffer);
+       else
+               ring_buffer_record_off(tr->max_buffer.buffer);
+
        buf = tr->trace_buffer.buffer;
        tr->trace_buffer.buffer = tr->max_buffer.buffer;
        tr->max_buffer.buffer = buf;
index 9708fff..bf29201 100644 (file)
@@ -986,6 +986,11 @@ static int netlink_bind(struct socket *sock, struct sockaddr *addr,
                        return err;
        }
 
+       if (nlk->ngroups == 0)
+               groups = 0;
+       else if (nlk->ngroups < 8*sizeof(groups))
+               groups &= (1UL << nlk->ngroups) - 1;
+
        bound = nlk->bound;
        if (bound) {
                /* Ensure nlk->portid is up-to-date. */