Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull watchdog fix from Thomas Gleixner:
"Trivial CPU hotplug regression fix for the watchdog code"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
watchdog: Fix CPU hotplug regression
diff --git a/arch/sparc/boot/piggyback.c b/arch/sparc/boot/piggyback.c
index c0a798f..bb7c951 100644
--- a/arch/sparc/boot/piggyback.c
+++ b/arch/sparc/boot/piggyback.c
@@ -81,18 +81,18 @@
static int start_line(const char *line)
{
- if (strcmp(line + 8, " T _start\n") == 0)
+ if (strcmp(line + 10, " _start\n") == 0)
return 1;
- else if (strcmp(line + 16, " T _start\n") == 0)
+ else if (strcmp(line + 18, " _start\n") == 0)
return 1;
return 0;
}
static int end_line(const char *line)
{
- if (strcmp(line + 8, " A _end\n") == 0)
+ if (strcmp(line + 10, " _end\n") == 0)
return 1;
- else if (strcmp (line + 16, " A _end\n") == 0)
+ else if (strcmp (line + 18, " _end\n") == 0)
return 1;
return 0;
}
@@ -100,8 +100,8 @@
/*
* Find address for start and end in System.map.
* The file looks like this:
- * f0004000 T _start
- * f0379f79 A _end
+ * f0004000 ... _start
+ * f0379f79 ... _end
* 1234567890123456
* ^coloumn 1
* There is support for 64 bit addresses too.
diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S
index 44025f4..8475a47 100644
--- a/arch/sparc/kernel/sys32.S
+++ b/arch/sparc/kernel/sys32.S
@@ -47,7 +47,7 @@
sra REG4, 0, REG4
SIGN1(sys32_exit, sparc_exit, %o0)
-SIGN1(sys32_exit_group, sys_exit_group, %o0)
+SIGN1(sys32_exit_group, sparc_exit_group, %o0)
SIGN1(sys32_wait4, compat_sys_wait4, %o2)
SIGN1(sys32_creat, sys_creat, %o1)
SIGN1(sys32_mknod, sys_mknod, %o1)
diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
index 7f5f65d..bf23477 100644
--- a/arch/sparc/kernel/syscalls.S
+++ b/arch/sparc/kernel/syscalls.S
@@ -118,10 +118,20 @@
ba,pt %xcc, ret_sys_call
ldx [%sp + PTREGS_OFF + PT_V9_I0], %o0
+ .globl sparc_exit_group
+ .type sparc_exit_group,#function
+sparc_exit_group:
+ sethi %hi(sys_exit_group), %g7
+ ba,pt %xcc, 1f
+ or %g7, %lo(sys_exit_group), %g7
+ .size sparc_exit_group,.-sparc_exit_group
+
.globl sparc_exit
.type sparc_exit,#function
sparc_exit:
- rdpr %pstate, %g2
+ sethi %hi(sys_exit), %g7
+ or %g7, %lo(sys_exit), %g7
+1: rdpr %pstate, %g2
wrpr %g2, PSTATE_IE, %pstate
rdpr %otherwin, %g1
rdpr %cansave, %g3
@@ -129,7 +139,7 @@
wrpr %g3, 0x0, %cansave
wrpr %g0, 0x0, %otherwin
wrpr %g2, 0x0, %pstate
- ba,pt %xcc, sys_exit
+ jmpl %g7, %g0
stb %g0, [%g6 + TI_WSAVED]
.size sparc_exit,.-sparc_exit
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 1c9af9f..017b74a 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -133,7 +133,7 @@
/*170*/ .word sys_lsetxattr, sys_fsetxattr, sys_getxattr, sys_lgetxattr, sys_getdents
.word sys_setsid, sys_fchdir, sys_fgetxattr, sys_listxattr, sys_llistxattr
/*180*/ .word sys_flistxattr, sys_removexattr, sys_lremovexattr, sys_nis_syscall, sys_ni_syscall
- .word sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sys_newuname
+ .word sys_setpgid, sys_fremovexattr, sys_tkill, sparc_exit_group, sys_newuname
/*190*/ .word sys_init_module, sys_sparc64_personality, sys_remap_file_pages, sys_epoll_create, sys_epoll_ctl
.word sys_epoll_wait, sys_ioprio_set, sys_getppid, sys_nis_syscall, sys_sgetmask
/*200*/ .word sys_ssetmask, sys_nis_syscall, sys_newlstat, sys_uselib, sys_nis_syscall
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index da7b449..2144f61 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -498,7 +498,7 @@
* @ubi: UBI device description object
*
* This function returns a physical eraseblock in case of success and a
- * negative error code in case of failure. Might sleep.
+ * negative error code in case of failure.
*/
static int __wl_get_peb(struct ubi_device *ubi)
{
@@ -540,13 +540,6 @@
* ubi_wl_get_peb() after removing e from the pool. */
prot_queue_add(ubi, e);
#endif
- err = ubi_self_check_all_ff(ubi, e->pnum, ubi->vid_hdr_aloffset,
- ubi->peb_size - ubi->vid_hdr_aloffset);
- if (err) {
- ubi_err("new PEB %d does not contain all 0xFF bytes", e->pnum);
- return err;
- }
-
return e->pnum;
}
@@ -679,17 +672,30 @@
#else
static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi)
{
- return find_wl_entry(ubi, &ubi->free, WL_FREE_MAX_DIFF);
+ struct ubi_wl_entry *e;
+
+ e = find_wl_entry(ubi, &ubi->free, WL_FREE_MAX_DIFF);
+ self_check_in_wl_tree(ubi, e, &ubi->free);
+ rb_erase(&e->u.rb, &ubi->free);
+
+ return e;
}
int ubi_wl_get_peb(struct ubi_device *ubi)
{
- int peb;
+ int peb, err;
spin_lock(&ubi->wl_lock);
peb = __wl_get_peb(ubi);
spin_unlock(&ubi->wl_lock);
+ err = ubi_self_check_all_ff(ubi, peb, ubi->vid_hdr_aloffset,
+ ubi->peb_size - ubi->vid_hdr_aloffset);
+ if (err) {
+ ubi_err("new PEB %d does not contain all 0xFF bytes", peb);
+ return err;
+ }
+
return peb;
}
#endif
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 16b7a72..3b2365c 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -1276,7 +1276,7 @@
} __attribute__ ((packed));
struct megasas_aen_event {
- struct work_struct hotplug_work;
+ struct delayed_work hotplug_work;
struct megasas_instance *instance;
};
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index d2c5366..e4f2baa 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -2060,9 +2060,9 @@
} else {
ev->instance = instance;
instance->ev = ev;
- INIT_WORK(&ev->hotplug_work, megasas_aen_polling);
- schedule_delayed_work(
- (struct delayed_work *)&ev->hotplug_work, 0);
+ INIT_DELAYED_WORK(&ev->hotplug_work,
+ megasas_aen_polling);
+ schedule_delayed_work(&ev->hotplug_work, 0);
}
}
}
@@ -4352,8 +4352,7 @@
/* cancel the delayed work if this work still in queue */
if (instance->ev != NULL) {
struct megasas_aen_event *ev = instance->ev;
- cancel_delayed_work_sync(
- (struct delayed_work *)&ev->hotplug_work);
+ cancel_delayed_work_sync(&ev->hotplug_work);
instance->ev = NULL;
}
@@ -4545,8 +4544,7 @@
/* cancel the delayed work if this work still in queue*/
if (instance->ev != NULL) {
struct megasas_aen_event *ev = instance->ev;
- cancel_delayed_work_sync(
- (struct delayed_work *)&ev->hotplug_work);
+ cancel_delayed_work_sync(&ev->hotplug_work);
instance->ev = NULL;
}
@@ -5190,7 +5188,7 @@
megasas_aen_polling(struct work_struct *work)
{
struct megasas_aen_event *ev =
- container_of(work, struct megasas_aen_event, hotplug_work);
+ container_of(work, struct megasas_aen_event, hotplug_work.work);
struct megasas_instance *instance = ev->instance;
union megasas_evt_class_locale class_locale;
struct Scsi_Host *host;
diff --git a/fs/buffer.c b/fs/buffer.c
index 3586fb0..ec0aca8 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2893,6 +2893,55 @@
bio_put(bio);
}
+/*
+ * This allows us to do IO even on the odd last sectors
+ * of a device, even if the bh block size is some multiple
+ * of the physical sector size.
+ *
+ * We'll just truncate the bio to the size of the device,
+ * and clear the end of the buffer head manually.
+ *
+ * Truly out-of-range accesses will turn into actual IO
+ * errors, this only handles the "we need to be able to
+ * do IO at the final sector" case.
+ */
+static void guard_bh_eod(int rw, struct bio *bio, struct buffer_head *bh)
+{
+ sector_t maxsector;
+ unsigned bytes;
+
+ maxsector = i_size_read(bio->bi_bdev->bd_inode) >> 9;
+ if (!maxsector)
+ return;
+
+ /*
+ * If the *whole* IO is past the end of the device,
+ * let it through, and the IO layer will turn it into
+ * an EIO.
+ */
+ if (unlikely(bio->bi_sector >= maxsector))
+ return;
+
+ maxsector -= bio->bi_sector;
+ bytes = bio->bi_size;
+ if (likely((bytes >> 9) <= maxsector))
+ return;
+
+ /* Uhhuh. We've got a bh that straddles the device size! */
+ bytes = maxsector << 9;
+
+ /* Truncate the bio.. */
+ bio->bi_size = bytes;
+ bio->bi_io_vec[0].bv_len = bytes;
+
+ /* ..and clear the end of the buffer for reads */
+ if ((rw & RW_MASK) == READ) {
+ void *kaddr = kmap_atomic(bh->b_page);
+ memset(kaddr + bh_offset(bh) + bytes, 0, bh->b_size - bytes);
+ kunmap_atomic(kaddr);
+ }
+}
+
int submit_bh(int rw, struct buffer_head * bh)
{
struct bio *bio;
@@ -2929,6 +2978,9 @@
bio->bi_end_io = end_bio_bh_io_sync;
bio->bi_private = bh;
+ /* Take care of bh's that straddle the end of the device */
+ guard_bh_eod(rw, bio, bh);
+
bio_get(bio);
submit_bio(rw, bio);
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index a123b13..7d8dfc7 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -701,6 +701,13 @@
#define COMPACTION_BUILD 0
#endif
+/* This helps us to avoid #ifdef CONFIG_SYMBOL_PREFIX */
+#ifdef CONFIG_SYMBOL_PREFIX
+#define SYMBOL_PREFIX CONFIG_SYMBOL_PREFIX
+#else
+#define SYMBOL_PREFIX ""
+#endif
+
/* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */
#ifdef CONFIG_FTRACE_MCOUNT_RECORD
# define REBUILD_DUE_TO_FTRACE_MCOUNT_RECORD
diff --git a/kernel/modsign_pubkey.c b/kernel/modsign_pubkey.c
index 4646eb2..767e559 100644
--- a/kernel/modsign_pubkey.c
+++ b/kernel/modsign_pubkey.c
@@ -21,10 +21,10 @@
extern __initdata const u8 modsign_certificate_list[];
extern __initdata const u8 modsign_certificate_list_end[];
asm(".section .init.data,\"aw\"\n"
- "modsign_certificate_list:\n"
+ SYMBOL_PREFIX "modsign_certificate_list:\n"
".incbin \"signing_key.x509\"\n"
".incbin \"extra_certificates\"\n"
- "modsign_certificate_list_end:"
+ SYMBOL_PREFIX "modsign_certificate_list_end:"
);
/*
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 084aa47..1dae900 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1361,8 +1361,8 @@
WARN_ON_ONCE(timer->function != delayed_work_timer_fn ||
timer->data != (unsigned long)dwork);
- BUG_ON(timer_pending(timer));
- BUG_ON(!list_empty(&work->entry));
+ WARN_ON_ONCE(timer_pending(timer));
+ WARN_ON_ONCE(!list_empty(&work->entry));
/*
* If @delay is 0, queue @dwork->work immediately. This is for