Linux 3.0.8

Linux 3.0.8

[Greg KH]

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I'm announcing the release of the 3.0.8 kernel.

All users of the 3.0 kernel series must upgrade.

The updated 3.0.y git tree can be found at (NOTE THE ADDRESS CHANGE):
        git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-3.0.y
and can be browsed at the normal kernel.org git web browser:
        http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary

thanks,

greg k-h

------------

 Makefile                              |    2 
 arch/arm/kernel/perf_event_v7.c       |    4 
 arch/arm/mm/init.c                    |    7 +
 arch/x86/mm/init.c                    |    3 
 crypto/ghash-generic.c                |    6 +
 drivers/firewire/sbp2.c               |    4 
 drivers/gpu/drm/radeon/atom.c         |   15 ++
 drivers/gpu/drm/radeon/atom.h         |    1 
 drivers/gpu/drm/ttm/ttm_bo.c          |   10 +
 drivers/gpu/drm/ttm/ttm_bo_util.c     |    2 
 drivers/hid/hid-ids.h                 |    3 
 drivers/hid/hid-magicmouse.c          |   10 +
 drivers/hid/usbhid/hid-quirks.c       |    1 
 drivers/hwmon/w83627ehf.c             |   20 ++-
 drivers/media/video/uvc/uvc_entity.c  |    2 
 drivers/platform/x86/samsung-laptop.c |   10 +
 fs/cifs/cifsfs.c                      |   10 +
 fs/fuse/dev.c                         |   12 +-
 fs/hfsplus/hfsplus_fs.h               |   16 ++
 fs/hfsplus/part_tbl.c                 |   32 +++--
 fs/hfsplus/super.c                    |   16 +-
 fs/hfsplus/wrapper.c                  |   87 +++++++++++----
 fs/xfs/linux-2.6/xfs_linux.h          |    2 
 fs/xfs/linux-2.6/xfs_super.c          |   48 ++------
 fs/xfs/quota/xfs_dquot_item.c         |   10 +
 fs/xfs/xfs_buf_item.c                 |    3 
 fs/xfs/xfs_inode_item.c               |   10 +
 fs/xfs/xfs_trans.c                    |   27 ++++
 fs/xfs/xfs_trans.h                    |    2 
 fs/xfs/xfs_trans_ail.c                |  192 ++++++++++++++++++++++++----------
 fs/xfs/xfs_trans_priv.h               |   18 +--
 kernel/posix-cpu-timers.c             |    7 -
 kernel/sys.c                          |    2 
 mm/migrate.c                          |    8 -
 net/x25/af_x25.c                      |    3 
 sound/pci/hda/hda_intel.c             |    1 
 sound/pci/hda/patch_conexant.c        |    1 
 37 files changed, 413 insertions(+), 194 deletions(-)

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Re: Linux 3.0.8

[Greg KH]

diff --git a/Makefile b/Makefile
index 11c4249..9f6e3cd 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 3
 PATCHLEVEL = 0
-SUBLEVEL = 7
+SUBLEVEL = 8
 EXTRAVERSION =
 NAME = Sneaky Weasel
 
diff --git a/arch/arm/kernel/perf_event_v7.c b/arch/arm/kernel/perf_event_v7.c
index 4960686..4372763 100644
--- a/arch/arm/kernel/perf_event_v7.c
+++ b/arch/arm/kernel/perf_event_v7.c
@@ -264,8 +264,8 @@ static const unsigned armv7_a9_perf_map[PERF_COUNT_HW_MAX] = {
 	[PERF_COUNT_HW_CPU_CYCLES]	    = ARMV7_PERFCTR_CPU_CYCLES,
 	[PERF_COUNT_HW_INSTRUCTIONS]	    =
 					ARMV7_PERFCTR_INST_OUT_OF_RENAME_STAGE,
-	[PERF_COUNT_HW_CACHE_REFERENCES]    = ARMV7_PERFCTR_COHERENT_LINE_HIT,
-	[PERF_COUNT_HW_CACHE_MISSES]	    = ARMV7_PERFCTR_COHERENT_LINE_MISS,
+	[PERF_COUNT_HW_CACHE_REFERENCES]    = ARMV7_PERFCTR_DCACHE_ACCESS,
+	[PERF_COUNT_HW_CACHE_MISSES]	    = ARMV7_PERFCTR_DCACHE_REFILL,
 	[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV7_PERFCTR_PC_WRITE,
 	[PERF_COUNT_HW_BRANCH_MISSES]	    = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
 	[PERF_COUNT_HW_BUS_CYCLES]	    = ARMV7_PERFCTR_CLOCK_CYCLES,
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index c19571c..4a4eba5 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -473,6 +473,13 @@ static void __init free_unused_memmap(struct meminfo *mi)
 		 */
 		bank_start = min(bank_start,
 				 ALIGN(prev_bank_end, PAGES_PER_SECTION));
+#else
+		/*
+		 * Align down here since the VM subsystem insists that the
+		 * memmap entries are valid from the bank start aligned to
+		 * MAX_ORDER_NR_PAGES.
+		 */
+		bank_start = round_down(bank_start, MAX_ORDER_NR_PAGES);
 #endif
 		/*
 		 * If we had a previous bank, and there is a space
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 3032644..87488b9 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -63,9 +63,8 @@ static void __init find_early_table_space(unsigned long end, int use_pse,
 #ifdef CONFIG_X86_32
 	/* for fixmap */
 	tables += roundup(__end_of_fixed_addresses * sizeof(pte_t), PAGE_SIZE);
-
-	good_end = max_pfn_mapped << PAGE_SHIFT;
 #endif
+	good_end = max_pfn_mapped << PAGE_SHIFT;
 
 	base = memblock_find_in_range(start, good_end, tables, PAGE_SIZE);
 	if (base == MEMBLOCK_ERROR)
diff --git a/crypto/ghash-generic.c b/crypto/ghash-generic.c
index be44256..7835b8f 100644
--- a/crypto/ghash-generic.c
+++ b/crypto/ghash-generic.c
@@ -67,6 +67,9 @@ static int ghash_update(struct shash_desc *desc,
 	struct ghash_ctx *ctx = crypto_shash_ctx(desc->tfm);
 	u8 *dst = dctx->buffer;
 
+	if (!ctx->gf128)
+		return -ENOKEY;
+
 	if (dctx->bytes) {
 		int n = min(srclen, dctx->bytes);
 		u8 *pos = dst + (GHASH_BLOCK_SIZE - dctx->bytes);
@@ -119,6 +122,9 @@ static int ghash_final(struct shash_desc *desc, u8 *dst)
 	struct ghash_ctx *ctx = crypto_shash_ctx(desc->tfm);
 	u8 *buf = dctx->buffer;
 
+	if (!ctx->gf128)
+		return -ENOKEY;
+
 	ghash_flush(ctx, dctx);
 	memcpy(dst, buf, GHASH_BLOCK_SIZE);
 
diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c
index 41841a3..17cef86 100644
--- a/drivers/firewire/sbp2.c
+++ b/drivers/firewire/sbp2.c
@@ -1198,6 +1198,10 @@ static int sbp2_remove(struct device *dev)
 {
 	struct fw_unit *unit = fw_unit(dev);
 	struct sbp2_target *tgt = dev_get_drvdata(&unit->device);
+	struct sbp2_logical_unit *lu;
+
+	list_for_each_entry(lu, &tgt->lu_list, link)
+		cancel_delayed_work_sync(&lu->work);
 
 	sbp2_target_put(tgt);
 	return 0;
diff --git a/drivers/gpu/drm/radeon/atom.c b/drivers/gpu/drm/radeon/atom.c
index ebdb0fd..9a0aee2 100644
--- a/drivers/gpu/drm/radeon/atom.c
+++ b/drivers/gpu/drm/radeon/atom.c
@@ -277,7 +277,12 @@ static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr,
 	case ATOM_ARG_FB:
 		idx = U8(*ptr);
 		(*ptr)++;
-		val = gctx->scratch[((gctx->fb_base + idx) / 4)];
+		if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
+			DRM_ERROR("ATOM: fb read beyond scratch region: %d vs. %d\n",
+				  gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
+			val = 0;
+		} else
+			val = gctx->scratch[(gctx->fb_base / 4) + idx];
 		if (print)
 			DEBUG("FB[0x%02X]", idx);
 		break;
@@ -531,7 +536,11 @@ static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
 	case ATOM_ARG_FB:
 		idx = U8(*ptr);
 		(*ptr)++;
-		gctx->scratch[((gctx->fb_base + idx) / 4)] = val;
+		if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
+			DRM_ERROR("ATOM: fb write beyond scratch region: %d vs. %d\n",
+				  gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
+		} else
+			gctx->scratch[(gctx->fb_base / 4) + idx] = val;
 		DEBUG("FB[0x%02X]", idx);
 		break;
 	case ATOM_ARG_PLL:
@@ -1367,11 +1376,13 @@ int atom_allocate_fb_scratch(struct atom_context *ctx)
 
 		usage_bytes = firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb * 1024;
 	}
+	ctx->scratch_size_bytes = 0;
 	if (usage_bytes == 0)
 		usage_bytes = 20 * 1024;
 	/* allocate some scratch memory */
 	ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
 	if (!ctx->scratch)
 		return -ENOMEM;
+	ctx->scratch_size_bytes = usage_bytes;
 	return 0;
 }
diff --git a/drivers/gpu/drm/radeon/atom.h b/drivers/gpu/drm/radeon/atom.h
index a589a55..93cfe20 100644
--- a/drivers/gpu/drm/radeon/atom.h
+++ b/drivers/gpu/drm/radeon/atom.h
@@ -137,6 +137,7 @@ struct atom_context {
 	int cs_equal, cs_above;
 	int io_mode;
 	uint32_t *scratch;
+	int scratch_size_bytes;
 };
 
 extern int atom_debug;
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index b7f0726..e2b2d78 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -392,10 +392,12 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
 	 * Create and bind a ttm if required.
 	 */
 
-	if (!(new_man->flags & TTM_MEMTYPE_FLAG_FIXED) && (bo->ttm == NULL)) {
-		ret = ttm_bo_add_ttm(bo, false);
-		if (ret)
-			goto out_err;
+	if (!(new_man->flags & TTM_MEMTYPE_FLAG_FIXED)) {
+		if (bo->ttm == NULL) {
+			ret = ttm_bo_add_ttm(bo, false);
+			if (ret)
+				goto out_err;
+		}
 
 		ret = ttm_tt_set_placement_caching(bo->ttm, mem->placement);
 		if (ret)
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 77dbf40..ae3c6f5 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -635,13 +635,13 @@ int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
 		if (ret)
 			return ret;
 
-		ttm_bo_free_old_node(bo);
 		if ((man->flags & TTM_MEMTYPE_FLAG_FIXED) &&
 		    (bo->ttm != NULL)) {
 			ttm_tt_unbind(bo->ttm);
 			ttm_tt_destroy(bo->ttm);
 			bo->ttm = NULL;
 		}
+		ttm_bo_free_old_node(bo);
 	} else {
 		/**
 		 * This should help pipeline ordinary buffer moves.
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index a756ee6..c946d90 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -568,6 +568,9 @@
 #define USB_DEVICE_ID_SAMSUNG_IR_REMOTE	0x0001
 #define USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE	0x0600
 
+#define USB_VENDOR_ID_SIGMA_MICRO	0x1c4f
+#define USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD	0x0002
+
 #define USB_VENDOR_ID_SKYCABLE			0x1223
 #define	USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER	0x3F07
 
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c
index 0ec91c1..56d0539 100644
--- a/drivers/hid/hid-magicmouse.c
+++ b/drivers/hid/hid-magicmouse.c
@@ -501,9 +501,17 @@ static int magicmouse_probe(struct hid_device *hdev,
 	}
 	report->size = 6;
 
+	/*
+	 * Some devices repond with 'invalid report id' when feature
+	 * report switching it into multitouch mode is sent to it.
+	 *
+	 * This results in -EIO from the _raw low-level transport callback,
+	 * but there seems to be no other way of switching the mode.
+	 * Thus the super-ugly hacky success check below.
+	 */
 	ret = hdev->hid_output_raw_report(hdev, feature, sizeof(feature),
 			HID_FEATURE_REPORT);
-	if (ret != sizeof(feature)) {
+	if (ret != -EIO && ret != sizeof(feature)) {
 		hid_err(hdev, "unable to request touch data (%d)\n", ret);
 		goto err_stop_hw;
 	}
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 621959d..4bdb5d4 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -89,6 +89,7 @@ static const struct hid_blacklist {
 
 	{ USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_MULTI_TOUCH, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS, HID_QUIRK_MULTI_INPUT },
+	{ USB_VENDOR_ID_SIGMA_MICRO, USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD, HID_QUIRK_NO_INIT_REPORTS },
 	{ 0, 0 }
 };
 
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index f2b377c..36d7f27 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -390,7 +390,7 @@ temp_from_reg(u16 reg, s16 regval)
 {
 	if (is_word_sized(reg))
 		return LM75_TEMP_FROM_REG(regval);
-	return regval * 1000;
+	return ((s8)regval) * 1000;
 }
 
 static inline u16
@@ -398,7 +398,8 @@ temp_to_reg(u16 reg, long temp)
 {
 	if (is_word_sized(reg))
 		return LM75_TEMP_TO_REG(temp);
-	return DIV_ROUND_CLOSEST(SENSORS_LIMIT(temp, -127000, 128000), 1000);
+	return (s8)DIV_ROUND_CLOSEST(SENSORS_LIMIT(temp, -127000, 128000),
+				     1000);
 }
 
 /* Some of analog inputs have internal scaling (2x), 8mV is ADC LSB */
@@ -1715,7 +1716,8 @@ static void w83627ehf_device_remove_files(struct device *dev)
 }
 
 /* Get the monitoring functions started */
-static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data)
+static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data,
+						   enum kinds kind)
 {
 	int i;
 	u8 tmp, diode;
@@ -1746,10 +1748,16 @@ static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data)
 		w83627ehf_write_value(data, W83627EHF_REG_VBAT, tmp | 0x01);
 
 	/* Get thermal sensor types */
-	diode = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
+	switch (kind) {
+	case w83627ehf:
+		diode = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
+		break;
+	default:
+		diode = 0x70;
+	}
 	for (i = 0; i < 3; i++) {
 		if ((tmp & (0x02 << i)))
-			data->temp_type[i] = (diode & (0x10 << i)) ? 1 : 2;
+			data->temp_type[i] = (diode & (0x10 << i)) ? 1 : 3;
 		else
 			data->temp_type[i] = 4; /* thermistor */
 	}
@@ -2016,7 +2024,7 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
 	}
 
 	/* Initialize the chip */
-	w83627ehf_init_device(data);
+	w83627ehf_init_device(data, sio_data->kind);
 
 	data->vrm = vid_which_vrm();
 	superio_enter(sio_data->sioreg);
diff --git a/drivers/media/video/uvc/uvc_entity.c b/drivers/media/video/uvc/uvc_entity.c
index 48fea37..29e2399 100644
--- a/drivers/media/video/uvc/uvc_entity.c
+++ b/drivers/media/video/uvc/uvc_entity.c
@@ -49,7 +49,7 @@ static int uvc_mc_register_entity(struct uvc_video_chain *chain,
 		if (remote == NULL)
 			return -EINVAL;
 
-		source = (UVC_ENTITY_TYPE(remote) != UVC_TT_STREAMING)
+		source = (UVC_ENTITY_TYPE(remote) == UVC_TT_STREAMING)
 		       ? (remote->vdev ? &remote->vdev->entity : NULL)
 		       : &remote->subdev.entity;
 		if (source == NULL)
diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
index d347116..1658575 100644
--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -601,6 +601,16 @@ static struct dmi_system_id __initdata samsung_dmi_table[] = {
 		.callback = dmi_check_cb,
 	},
 	{
+		.ident = "N150/N210/N220",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR,
+					"SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
+			DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
+		},
+		.callback = dmi_check_cb,
+	},
+	{
 		.ident = "N150/N210/N220/N230",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR,
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index fc7e57b..53e7d72 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -566,6 +566,12 @@ cifs_get_root(struct smb_vol *vol, struct super_block *sb)
 		struct inode *dir = dentry->d_inode;
 		struct dentry *child;
 
+		if (!dir) {
+			dput(dentry);
+			dentry = ERR_PTR(-ENOENT);
+			break;
+		}
+
 		/* skip separators */
 		while (*s == sep)
 			s++;
@@ -581,10 +587,6 @@ cifs_get_root(struct smb_vol *vol, struct super_block *sb)
 		mutex_unlock(&dir->i_mutex);
 		dput(dentry);
 		dentry = child;
-		if (!dentry->d_inode) {
-			dput(dentry);
-			dentry = ERR_PTR(-ENOENT);
-		}
 	} while (!IS_ERR(dentry));
 	_FreeXid(xid);
 	kfree(full_path);
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 168a80f..5cb8614 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -258,10 +258,14 @@ void fuse_queue_forget(struct fuse_conn *fc, struct fuse_forget_link *forget,
 	forget->forget_one.nlookup = nlookup;
 
 	spin_lock(&fc->lock);
-	fc->forget_list_tail->next = forget;
-	fc->forget_list_tail = forget;
-	wake_up(&fc->waitq);
-	kill_fasync(&fc->fasync, SIGIO, POLL_IN);
+	if (fc->connected) {
+		fc->forget_list_tail->next = forget;
+		fc->forget_list_tail = forget;
+		wake_up(&fc->waitq);
+		kill_fasync(&fc->fasync, SIGIO, POLL_IN);
+	} else {
+		kfree(forget);
+	}
 	spin_unlock(&fc->lock);
 }
 
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index d685752..4e7f64b 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -13,6 +13,7 @@
 #include <linux/fs.h>
 #include <linux/mutex.h>
 #include <linux/buffer_head.h>
+#include <linux/blkdev.h>
 #include "hfsplus_raw.h"
 
 #define DBG_BNODE_REFS	0x00000001
@@ -110,7 +111,9 @@ struct hfsplus_vh;
 struct hfs_btree;
 
 struct hfsplus_sb_info {
+	void *s_vhdr_buf;
 	struct hfsplus_vh *s_vhdr;
+	void *s_backup_vhdr_buf;
 	struct hfsplus_vh *s_backup_vhdr;
 	struct hfs_btree *ext_tree;
 	struct hfs_btree *cat_tree;
@@ -258,6 +261,15 @@ struct hfsplus_readdir_data {
 	struct hfsplus_cat_key key;
 };
 
+/*
+ * Find minimum acceptible I/O size for an hfsplus sb.
+ */
+static inline unsigned short hfsplus_min_io_size(struct super_block *sb)
+{
+	return max_t(unsigned short, bdev_logical_block_size(sb->s_bdev),
+		     HFSPLUS_SECTOR_SIZE);
+}
+
 #define hfs_btree_open hfsplus_btree_open
 #define hfs_btree_close hfsplus_btree_close
 #define hfs_btree_write hfsplus_btree_write
@@ -436,8 +448,8 @@ int hfsplus_compare_dentry(const struct dentry *parent,
 /* wrapper.c */
 int hfsplus_read_wrapper(struct super_block *);
 int hfs_part_find(struct super_block *, sector_t *, sector_t *);
-int hfsplus_submit_bio(struct block_device *bdev, sector_t sector,
-		void *data, int rw);
+int hfsplus_submit_bio(struct super_block *sb, sector_t sector,
+		void *buf, void **data, int rw);
 
 /* time macros */
 #define __hfsp_mt2ut(t)		(be32_to_cpu(t) - 2082844800U)
diff --git a/fs/hfsplus/part_tbl.c b/fs/hfsplus/part_tbl.c
index 40ad88c..eb355d8 100644
--- a/fs/hfsplus/part_tbl.c
+++ b/fs/hfsplus/part_tbl.c
@@ -88,11 +88,12 @@ static int hfs_parse_old_pmap(struct super_block *sb, struct old_pmap *pm,
 	return -ENOENT;
 }
 
-static int hfs_parse_new_pmap(struct super_block *sb, struct new_pmap *pm,
-		sector_t *part_start, sector_t *part_size)
+static int hfs_parse_new_pmap(struct super_block *sb, void *buf,
+		struct new_pmap *pm, sector_t *part_start, sector_t *part_size)
 {
 	struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
 	int size = be32_to_cpu(pm->pmMapBlkCnt);
+	int buf_size = hfsplus_min_io_size(sb);
 	int res;
 	int i = 0;
 
@@ -107,11 +108,14 @@ static int hfs_parse_new_pmap(struct super_block *sb, struct new_pmap *pm,
 		if (++i >= size)
 			return -ENOENT;
 
-		res = hfsplus_submit_bio(sb->s_bdev,
-					 *part_start + HFS_PMAP_BLK + i,
-					 pm, READ);
-		if (res)
-			return res;
+		pm = (struct new_pmap *)((u8 *)pm + HFSPLUS_SECTOR_SIZE);
+		if ((u8 *)pm - (u8 *)buf >= buf_size) {
+			res = hfsplus_submit_bio(sb,
+						 *part_start + HFS_PMAP_BLK + i,
+						 buf, (void **)&pm, READ);
+			if (res)
+				return res;
+		}
 	} while (pm->pmSig == cpu_to_be16(HFS_NEW_PMAP_MAGIC));
 
 	return -ENOENT;
@@ -124,15 +128,15 @@ static int hfs_parse_new_pmap(struct super_block *sb, struct new_pmap *pm,
 int hfs_part_find(struct super_block *sb,
 		sector_t *part_start, sector_t *part_size)
 {
-	void *data;
+	void *buf, *data;
 	int res;
 
-	data = kmalloc(HFSPLUS_SECTOR_SIZE, GFP_KERNEL);
-	if (!data)
+	buf = kmalloc(hfsplus_min_io_size(sb), GFP_KERNEL);
+	if (!buf)
 		return -ENOMEM;
 
-	res = hfsplus_submit_bio(sb->s_bdev, *part_start + HFS_PMAP_BLK,
-				 data, READ);
+	res = hfsplus_submit_bio(sb, *part_start + HFS_PMAP_BLK,
+				 buf, &data, READ);
 	if (res)
 		goto out;
 
@@ -141,13 +145,13 @@ int hfs_part_find(struct super_block *sb,
 		res = hfs_parse_old_pmap(sb, data, part_start, part_size);
 		break;
 	case HFS_NEW_PMAP_MAGIC:
-		res = hfs_parse_new_pmap(sb, data, part_start, part_size);
+		res = hfs_parse_new_pmap(sb, buf, data, part_start, part_size);
 		break;
 	default:
 		res = -ENOENT;
 		break;
 	}
 out:
-	kfree(data);
+	kfree(buf);
 	return res;
 }
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index 84a47b7..c3a76fd 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -197,17 +197,17 @@ int hfsplus_sync_fs(struct super_block *sb, int wait)
 		write_backup = 1;
 	}
 
-	error2 = hfsplus_submit_bio(sb->s_bdev,
+	error2 = hfsplus_submit_bio(sb,
 				   sbi->part_start + HFSPLUS_VOLHEAD_SECTOR,
-				   sbi->s_vhdr, WRITE_SYNC);
+				   sbi->s_vhdr_buf, NULL, WRITE_SYNC);
 	if (!error)
 		error = error2;
 	if (!write_backup)
 		goto out;
 
-	error2 = hfsplus_submit_bio(sb->s_bdev,
+	error2 = hfsplus_submit_bio(sb,
 				  sbi->part_start + sbi->sect_count - 2,
-				  sbi->s_backup_vhdr, WRITE_SYNC);
+				  sbi->s_backup_vhdr_buf, NULL, WRITE_SYNC);
 	if (!error)
 		error2 = error;
 out:
@@ -251,8 +251,8 @@ static void hfsplus_put_super(struct super_block *sb)
 	hfs_btree_close(sbi->ext_tree);
 	iput(sbi->alloc_file);
 	iput(sbi->hidden_dir);
-	kfree(sbi->s_vhdr);
-	kfree(sbi->s_backup_vhdr);
+	kfree(sbi->s_vhdr_buf);
+	kfree(sbi->s_backup_vhdr_buf);
 	unload_nls(sbi->nls);
 	kfree(sb->s_fs_info);
 	sb->s_fs_info = NULL;
@@ -508,8 +508,8 @@ out_close_cat_tree:
 out_close_ext_tree:
 	hfs_btree_close(sbi->ext_tree);
 out_free_vhdr:
-	kfree(sbi->s_vhdr);
-	kfree(sbi->s_backup_vhdr);
+	kfree(sbi->s_vhdr_buf);
+	kfree(sbi->s_backup_vhdr_buf);
 out_unload_nls:
 	unload_nls(sbi->nls);
 	unload_nls(nls);
diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c
index 4ac88ff..7b8112d 100644
--- a/fs/hfsplus/wrapper.c
+++ b/fs/hfsplus/wrapper.c
@@ -31,25 +31,67 @@ static void hfsplus_end_io_sync(struct bio *bio, int err)
 	complete(bio->bi_private);
 }
 
-int hfsplus_submit_bio(struct block_device *bdev, sector_t sector,
-		void *data, int rw)
+/*
+ * hfsplus_submit_bio - Perfrom block I/O
+ * @sb: super block of volume for I/O
+ * @sector: block to read or write, for blocks of HFSPLUS_SECTOR_SIZE bytes
+ * @buf: buffer for I/O
+ * @data: output pointer for location of requested data
+ * @rw: direction of I/O
+ *
+ * The unit of I/O is hfsplus_min_io_size(sb), which may be bigger than
+ * HFSPLUS_SECTOR_SIZE, and @buf must be sized accordingly. On reads
+ * @data will return a pointer to the start of the requested sector,
+ * which may not be the same location as @buf.
+ *
+ * If @sector is not aligned to the bdev logical block size it will
+ * be rounded down. For writes this means that @buf should contain data
+ * that starts at the rounded-down address. As long as the data was
+ * read using hfsplus_submit_bio() and the same buffer is used things
+ * will work correctly.
+ */
+int hfsplus_submit_bio(struct super_block *sb, sector_t sector,
+		void *buf, void **data, int rw)
 {
 	DECLARE_COMPLETION_ONSTACK(wait);
 	struct bio *bio;
 	int ret = 0;
+	unsigned int io_size;
+	loff_t start;
+	int offset;
+
+	/*
+	 * Align sector to hardware sector size and find offset. We
+	 * assume that io_size is a power of two, which _should_
+	 * be true.
+	 */
+	io_size = hfsplus_min_io_size(sb);
+	start = (loff_t)sector << HFSPLUS_SECTOR_SHIFT;
+	offset = start & (io_size - 1);
+	sector &= ~((io_size >> HFSPLUS_SECTOR_SHIFT) - 1);
 
 	bio = bio_alloc(GFP_NOIO, 1);
 	bio->bi_sector = sector;
-	bio->bi_bdev = bdev;
+	bio->bi_bdev = sb->s_bdev;
 	bio->bi_end_io = hfsplus_end_io_sync;
 	bio->bi_private = &wait;
 
-	/*
-	 * We always submit one sector at a time, so bio_add_page must not fail.
-	 */
-	if (bio_add_page(bio, virt_to_page(data), HFSPLUS_SECTOR_SIZE,
-			 offset_in_page(data)) != HFSPLUS_SECTOR_SIZE)
-		BUG();
+	if (!(rw & WRITE) && data)
+		*data = (u8 *)buf + offset;
+
+	while (io_size > 0) {
+		unsigned int page_offset = offset_in_page(buf);
+		unsigned int len = min_t(unsigned int, PAGE_SIZE - page_offset,
+					 io_size);
+
+		ret = bio_add_page(bio, virt_to_page(buf), len, page_offset);
+		if (ret != len) {
+			ret = -EIO;
+			goto out;
+		}
+		io_size -= len;
+		buf = (u8 *)buf + len;
+	}
 
 	submit_bio(rw, bio);
 	wait_for_completion(&wait);
@@ -57,8 +99,9 @@ int hfsplus_submit_bio(struct block_device *bdev, sector_t sector,
 	if (!bio_flagged(bio, BIO_UPTODATE))
 		ret = -EIO;
 
+out:
 	bio_put(bio);
-	return ret;
+	return ret < 0 ? ret : 0;
 }
 
 static int hfsplus_read_mdb(void *bufptr, struct hfsplus_wd *wd)
@@ -147,17 +190,17 @@ int hfsplus_read_wrapper(struct super_block *sb)
 	}
 
 	error = -ENOMEM;
-	sbi->s_vhdr = kmalloc(HFSPLUS_SECTOR_SIZE, GFP_KERNEL);
-	if (!sbi->s_vhdr)
+	sbi->s_vhdr_buf = kmalloc(hfsplus_min_io_size(sb), GFP_KERNEL);
+	if (!sbi->s_vhdr_buf)
 		goto out;
-	sbi->s_backup_vhdr = kmalloc(HFSPLUS_SECTOR_SIZE, GFP_KERNEL);
-	if (!sbi->s_backup_vhdr)
+	sbi->s_backup_vhdr_buf = kmalloc(hfsplus_min_io_size(sb), GFP_KERNEL);
+	if (!sbi->s_backup_vhdr_buf)
 		goto out_free_vhdr;
 
 reread:
-	error = hfsplus_submit_bio(sb->s_bdev,
-				   part_start + HFSPLUS_VOLHEAD_SECTOR,
-				   sbi->s_vhdr, READ);
+	error = hfsplus_submit_bio(sb, part_start + HFSPLUS_VOLHEAD_SECTOR,
+				   sbi->s_vhdr_buf, (void **)&sbi->s_vhdr,
+				   READ);
 	if (error)
 		goto out_free_backup_vhdr;
 
@@ -186,9 +229,9 @@ reread:
 		goto reread;
 	}
 
-	error = hfsplus_submit_bio(sb->s_bdev,
-				   part_start + part_size - 2,
-				   sbi->s_backup_vhdr, READ);
+	error = hfsplus_submit_bio(sb, part_start + part_size - 2,
+				   sbi->s_backup_vhdr_buf,
+				   (void **)&sbi->s_backup_vhdr, READ);
 	if (error)
 		goto out_free_backup_vhdr;
 
@@ -232,9 +275,9 @@ reread:
 	return 0;
 
 out_free_backup_vhdr:
-	kfree(sbi->s_backup_vhdr);
+	kfree(sbi->s_backup_vhdr_buf);
 out_free_vhdr:
-	kfree(sbi->s_vhdr);
+	kfree(sbi->s_vhdr_buf);
 out:
 	return error;
 }
diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h
index 8633521..8731516 100644
--- a/fs/xfs/linux-2.6/xfs_linux.h
+++ b/fs/xfs/linux-2.6/xfs_linux.h
@@ -70,6 +70,8 @@
 #include <linux/ctype.h>
 #include <linux/writeback.h>
 #include <linux/capability.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
 #include <linux/list_sort.h>
 
 #include <asm/page.h>
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index a1a881e..347cae9 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -1412,37 +1412,35 @@ xfs_fs_fill_super(
 	sb->s_time_gran = 1;
 	set_posix_acl_flag(sb);
 
-	error = xfs_syncd_init(mp);
-	if (error)
-		goto out_filestream_unmount;
-
 	xfs_inode_shrinker_register(mp);
 
 	error = xfs_mountfs(mp);
 	if (error)
-		goto out_syncd_stop;
+		goto out_filestream_unmount;
+
+	error = xfs_syncd_init(mp);
+	if (error)
+		goto out_unmount;
 
 	root = igrab(VFS_I(mp->m_rootip));
 	if (!root) {
 		error = ENOENT;
-		goto fail_unmount;
+		goto out_syncd_stop;
 	}
 	if (is_bad_inode(root)) {
 		error = EINVAL;
-		goto fail_vnrele;
+		goto out_syncd_stop;
 	}
 	sb->s_root = d_alloc_root(root);
 	if (!sb->s_root) {
 		error = ENOMEM;
-		goto fail_vnrele;
+		goto out_iput;
 	}
 
 	return 0;
 
- out_syncd_stop:
-	xfs_inode_shrinker_unregister(mp);
-	xfs_syncd_stop(mp);
  out_filestream_unmount:
+	xfs_inode_shrinker_unregister(mp);
 	xfs_filestream_unmount(mp);
  out_free_sb:
 	xfs_freesb(mp);
@@ -1456,17 +1454,12 @@ xfs_fs_fill_super(
  out:
 	return -error;
 
- fail_vnrele:
-	if (sb->s_root) {
-		dput(sb->s_root);
-		sb->s_root = NULL;
-	} else {
-		iput(root);
-	}
-
- fail_unmount:
-	xfs_inode_shrinker_unregister(mp);
+ out_iput:
+	iput(root);
+ out_syncd_stop:
 	xfs_syncd_stop(mp);
+ out_unmount:
+	xfs_inode_shrinker_unregister(mp);
 
 	/*
 	 * Blow away any referenced inode in the filestreams cache.
@@ -1667,24 +1660,13 @@ xfs_init_workqueues(void)
 	 */
 	xfs_syncd_wq = alloc_workqueue("xfssyncd", WQ_CPU_INTENSIVE, 8);
 	if (!xfs_syncd_wq)
-		goto out;
-
-	xfs_ail_wq = alloc_workqueue("xfsail", WQ_CPU_INTENSIVE, 8);
-	if (!xfs_ail_wq)
-		goto out_destroy_syncd;
-
+		return -ENOMEM;
 	return 0;
-
-out_destroy_syncd:
-	destroy_workqueue(xfs_syncd_wq);
-out:
-	return -ENOMEM;
 }
 
 STATIC void
 xfs_destroy_workqueues(void)
 {
-	destroy_workqueue(xfs_ail_wq);
 	destroy_workqueue(xfs_syncd_wq);
 }
 
diff --git a/fs/xfs/quota/xfs_dquot_item.c b/fs/xfs/quota/xfs_dquot_item.c
index 9e0e2fa..8126fc2 100644
--- a/fs/xfs/quota/xfs_dquot_item.c
+++ b/fs/xfs/quota/xfs_dquot_item.c
@@ -183,13 +183,14 @@ xfs_qm_dqunpin_wait(
  * search the buffer cache can be a time consuming thing, and AIL lock is a
  * spinlock.
  */
-STATIC void
+STATIC bool
 xfs_qm_dquot_logitem_pushbuf(
 	struct xfs_log_item	*lip)
 {
 	struct xfs_dq_logitem	*qlip = DQUOT_ITEM(lip);
 	struct xfs_dquot	*dqp = qlip->qli_dquot;
 	struct xfs_buf		*bp;
+	bool			ret = true;
 
 	ASSERT(XFS_DQ_IS_LOCKED(dqp));
 
@@ -201,17 +202,20 @@ xfs_qm_dquot_logitem_pushbuf(
 	if (completion_done(&dqp->q_flush) ||
 	    !(lip->li_flags & XFS_LI_IN_AIL)) {
 		xfs_dqunlock(dqp);
-		return;
+		return true;
 	}
 
 	bp = xfs_incore(dqp->q_mount->m_ddev_targp, qlip->qli_format.qlf_blkno,
 			dqp->q_mount->m_quotainfo->qi_dqchunklen, XBF_TRYLOCK);
 	xfs_dqunlock(dqp);
 	if (!bp)
-		return;
+		return true;
 	if (XFS_BUF_ISDELAYWRITE(bp))
 		xfs_buf_delwri_promote(bp);
+	if (XFS_BUF_ISPINNED(bp))
+		ret = false;
 	xfs_buf_relse(bp);
+	return ret;
 }
 
 /*
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index 7b7e005..a7342e8 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -632,7 +632,7 @@ xfs_buf_item_push(
  * the xfsbufd to get this buffer written. We have to unlock the buffer
  * to allow the xfsbufd to write it, too.
  */
-STATIC void
+STATIC bool
 xfs_buf_item_pushbuf(
 	struct xfs_log_item	*lip)
 {
@@ -646,6 +646,7 @@ xfs_buf_item_pushbuf(
 
 	xfs_buf_delwri_promote(bp);
 	xfs_buf_relse(bp);
+	return true;
 }
 
 STATIC void
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index b1e88d5..391044c 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -713,13 +713,14 @@ xfs_inode_item_committed(
  * marked delayed write. If that's the case, we'll promote it and that will
  * allow the caller to write the buffer by triggering the xfsbufd to run.
  */
-STATIC void
+STATIC bool
 xfs_inode_item_pushbuf(
 	struct xfs_log_item	*lip)
 {
 	struct xfs_inode_log_item *iip = INODE_ITEM(lip);
 	struct xfs_inode	*ip = iip->ili_inode;
 	struct xfs_buf		*bp;
+	bool			ret = true;
 
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED));
 
@@ -730,7 +731,7 @@ xfs_inode_item_pushbuf(
 	if (completion_done(&ip->i_flush) ||
 	    !(lip->li_flags & XFS_LI_IN_AIL)) {
 		xfs_iunlock(ip, XFS_ILOCK_SHARED);
-		return;
+		return true;
 	}
 
 	bp = xfs_incore(ip->i_mount->m_ddev_targp, iip->ili_format.ilf_blkno,
@@ -738,10 +739,13 @@ xfs_inode_item_pushbuf(
 
 	xfs_iunlock(ip, XFS_ILOCK_SHARED);
 	if (!bp)
-		return;
+		return true;
 	if (XFS_BUF_ISDELAYWRITE(bp))
 		xfs_buf_delwri_promote(bp);
+	if (XFS_BUF_ISPINNED(bp))
+		ret = false;
 	xfs_buf_relse(bp);
+	return ret;
 }
 
 /*
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index c83f63b..efc147f 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -1426,6 +1426,7 @@ xfs_trans_committed(
 static inline void
 xfs_log_item_batch_insert(
 	struct xfs_ail		*ailp,
+	struct xfs_ail_cursor	*cur,
 	struct xfs_log_item	**log_items,
 	int			nr_items,
 	xfs_lsn_t		commit_lsn)
@@ -1434,7 +1435,7 @@ xfs_log_item_batch_insert(
 
 	spin_lock(&ailp->xa_lock);
 	/* xfs_trans_ail_update_bulk drops ailp->xa_lock */
-	xfs_trans_ail_update_bulk(ailp, log_items, nr_items, commit_lsn);
+	xfs_trans_ail_update_bulk(ailp, cur, log_items, nr_items, commit_lsn);
 
 	for (i = 0; i < nr_items; i++)
 		IOP_UNPIN(log_items[i], 0);
@@ -1452,6 +1453,13 @@ xfs_log_item_batch_insert(
  * as an iclog write error even though we haven't started any IO yet. Hence in
  * this case all we need to do is IOP_COMMITTED processing, followed by an
  * IOP_UNPIN(aborted) call.
+ *
+ * The AIL cursor is used to optimise the insert process. If commit_lsn is not
+ * at the end of the AIL, the insert cursor avoids the need to walk
+ * the AIL to find the insertion point on every xfs_log_item_batch_insert()
+ * call. This saves a lot of needless list walking and is a net win, even
+ * though it slightly increases that amount of AIL lock traffic to set it up
+ * and tear it down.
  */
 void
 xfs_trans_committed_bulk(
@@ -1463,8 +1471,13 @@ xfs_trans_committed_bulk(
 #define LOG_ITEM_BATCH_SIZE	32
 	struct xfs_log_item	*log_items[LOG_ITEM_BATCH_SIZE];
 	struct xfs_log_vec	*lv;
+	struct xfs_ail_cursor	cur;
 	int			i = 0;
 
+	spin_lock(&ailp->xa_lock);
+	xfs_trans_ail_cursor_last(ailp, &cur, commit_lsn);
+	spin_unlock(&ailp->xa_lock);
+
 	/* unpin all the log items */
 	for (lv = log_vector; lv; lv = lv->lv_next ) {
 		struct xfs_log_item	*lip = lv->lv_item;
@@ -1493,7 +1506,9 @@ xfs_trans_committed_bulk(
 			/*
 			 * Not a bulk update option due to unusual item_lsn.
 			 * Push into AIL immediately, rechecking the lsn once
-			 * we have the ail lock. Then unpin the item.
+			 * we have the ail lock. Then unpin the item. This does
+			 * not affect the AIL cursor the bulk insert path is
+			 * using.
 			 */
 			spin_lock(&ailp->xa_lock);
 			if (XFS_LSN_CMP(item_lsn, lip->li_lsn) > 0)
@@ -1507,7 +1522,7 @@ xfs_trans_committed_bulk(
 		/* Item is a candidate for bulk AIL insert.  */
 		log_items[i++] = lv->lv_item;
 		if (i >= LOG_ITEM_BATCH_SIZE) {
-			xfs_log_item_batch_insert(ailp, log_items,
+			xfs_log_item_batch_insert(ailp, &cur, log_items,
 					LOG_ITEM_BATCH_SIZE, commit_lsn);
 			i = 0;
 		}
@@ -1515,7 +1530,11 @@ xfs_trans_committed_bulk(
 
 	/* make sure we insert the remainder! */
 	if (i)
-		xfs_log_item_batch_insert(ailp, log_items, i, commit_lsn);
+		xfs_log_item_batch_insert(ailp, &cur, log_items, i, commit_lsn);
+
+	spin_lock(&ailp->xa_lock);
+	xfs_trans_ail_cursor_done(ailp, &cur);
+	spin_unlock(&ailp->xa_lock);
 }
 
 /*
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index 06a9759..53597f4 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -350,7 +350,7 @@ typedef struct xfs_item_ops {
 	void (*iop_unlock)(xfs_log_item_t *);
 	xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t);
 	void (*iop_push)(xfs_log_item_t *);
-	void (*iop_pushbuf)(xfs_log_item_t *);
+	bool (*iop_pushbuf)(xfs_log_item_t *);
 	void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t);
 } xfs_item_ops_t;
 
diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c
index 5fc2380..a4c281b 100644
--- a/fs/xfs/xfs_trans_ail.c
+++ b/fs/xfs/xfs_trans_ail.c
@@ -28,8 +28,6 @@
 #include "xfs_trans_priv.h"
 #include "xfs_error.h"
 
-struct workqueue_struct	*xfs_ail_wq;	/* AIL workqueue */
-
 #ifdef DEBUG
 /*
  * Check that the list is sorted as it should be.
@@ -272,9 +270,9 @@ xfs_trans_ail_cursor_clear(
 }
 
 /*
- * Return the item in the AIL with the current lsn.
- * Return the current tree generation number for use
- * in calls to xfs_trans_next_ail().
+ * Initialise the cursor to the first item in the AIL with the given @lsn.
+ * This searches the list from lowest LSN to highest. Pass a @lsn of zero
+ * to initialise the cursor to the first item in the AIL.
  */
 xfs_log_item_t *
 xfs_trans_ail_cursor_first(
@@ -300,31 +298,97 @@ out:
 }
 
 /*
- * splice the log item list into the AIL at the given LSN.
+ * Initialise the cursor to the last item in the AIL with the given @lsn.
+ * This searches the list from highest LSN to lowest. If there is no item with
+ * the value of @lsn, then it sets the cursor to the last item with an LSN lower
+ * than @lsn.
+ */
+static struct xfs_log_item *
+__xfs_trans_ail_cursor_last(
+	struct xfs_ail		*ailp,
+	xfs_lsn_t		lsn)
+{
+	xfs_log_item_t		*lip;
+
+	list_for_each_entry_reverse(lip, &ailp->xa_ail, li_ail) {
+		if (XFS_LSN_CMP(lip->li_lsn, lsn) <= 0)
+			return lip;
+	}
+	return NULL;
+}
+
+/*
+ * Initialise the cursor to the last item in the AIL with the given @lsn.
+ * This searches the list from highest LSN to lowest.
+ */
+struct xfs_log_item *
+xfs_trans_ail_cursor_last(
+	struct xfs_ail		*ailp,
+	struct xfs_ail_cursor	*cur,
+	xfs_lsn_t		lsn)
+{
+	xfs_trans_ail_cursor_init(ailp, cur);
+	cur->item = __xfs_trans_ail_cursor_last(ailp, lsn);
+	return cur->item;
+}
+
+/*
+ * splice the log item list into the AIL at the given LSN. We splice to the
+ * tail of the given LSN to maintain insert order for push traversals. The
+ * cursor is optional, allowing repeated updates to the same LSN to avoid
+ * repeated traversals.
  */
 static void
 xfs_ail_splice(
-	struct xfs_ail  *ailp,
-	struct list_head *list,
-	xfs_lsn_t       lsn)
+	struct xfs_ail		*ailp,
+	struct xfs_ail_cursor	*cur,
+	struct list_head	*list,
+	xfs_lsn_t		lsn)
 {
-	xfs_log_item_t  *next_lip;
+	struct xfs_log_item	*lip = cur ? cur->item : NULL;
+	struct xfs_log_item	*next_lip;
 
-	/* If the list is empty, just insert the item.  */
-	if (list_empty(&ailp->xa_ail)) {
-		list_splice(list, &ailp->xa_ail);
-		return;
-	}
+	/*
+	 * Get a new cursor if we don't have a placeholder or the existing one
+	 * has been invalidated.
+	 */
+	if (!lip || (__psint_t)lip & 1) {
+		lip = __xfs_trans_ail_cursor_last(ailp, lsn);
 
-	list_for_each_entry_reverse(next_lip, &ailp->xa_ail, li_ail) {
-		if (XFS_LSN_CMP(next_lip->li_lsn, lsn) <= 0)
-			break;
+		if (!lip) {
+			/* The list is empty, so just splice and return.  */
+			if (cur)
+				cur->item = NULL;
+			list_splice(list, &ailp->xa_ail);
+			return;
+		}
 	}
 
-	ASSERT(&next_lip->li_ail == &ailp->xa_ail ||
-	       XFS_LSN_CMP(next_lip->li_lsn, lsn) <= 0);
-
-	list_splice_init(list, &next_lip->li_ail);
+	/*
+	 * Our cursor points to the item we want to insert _after_, so we have
+	 * to update the cursor to point to the end of the list we are splicing
+	 * in so that it points to the correct location for the next splice.
+	 * i.e. before the splice
+	 *
+	 *  lsn -> lsn -> lsn + x -> lsn + x ...
+	 *          ^
+	 *          | cursor points here
+	 *
+	 * After the splice we have:
+	 *
+	 *  lsn -> lsn -> lsn -> lsn -> .... -> lsn -> lsn + x -> lsn + x ...
+	 *          ^                            ^
+	 *          | cursor points here         | needs to move here
+	 *
+	 * So we set the cursor to the last item in the list to be spliced
+	 * before we execute the splice, resulting in the cursor pointing to
+	 * the correct item after the splice occurs.
+	 */
+	if (cur) {
+		next_lip = list_entry(list->prev, struct xfs_log_item, li_ail);
+		cur->item = next_lip;
+	}
+	list_splice(list, &lip->li_ail);
 }
 
 /*
@@ -340,16 +404,10 @@ xfs_ail_delete(
 	xfs_trans_ail_cursor_clear(ailp, lip);
 }
 
-/*
- * xfs_ail_worker does the work of pushing on the AIL. It will requeue itself
- * to run at a later time if there is more work to do to complete the push.
- */
-STATIC void
-xfs_ail_worker(
-	struct work_struct	*work)
+static long
+xfsaild_push(
+	struct xfs_ail		*ailp)
 {
-	struct xfs_ail		*ailp = container_of(to_delayed_work(work),
-					struct xfs_ail, xa_work);
 	xfs_mount_t		*mp = ailp->xa_mount;
 	struct xfs_ail_cursor	*cur = &ailp->xa_cursors;
 	xfs_log_item_t		*lip;
@@ -412,8 +470,13 @@ xfs_ail_worker(
 
 		case XFS_ITEM_PUSHBUF:
 			XFS_STATS_INC(xs_push_ail_pushbuf);
-			IOP_PUSHBUF(lip);
-			ailp->xa_last_pushed_lsn = lsn;
+
+			if (!IOP_PUSHBUF(lip)) {
+				stuck++;
+				flush_log = 1;
+			} else {
+				ailp->xa_last_pushed_lsn = lsn;
+			}
 			push_xfsbufd = 1;
 			break;
 
@@ -425,7 +488,6 @@ xfs_ail_worker(
 
 		case XFS_ITEM_LOCKED:
 			XFS_STATS_INC(xs_push_ail_locked);
-			ailp->xa_last_pushed_lsn = lsn;
 			stuck++;
 			break;
 
@@ -486,20 +548,6 @@ out_done:
 		/* We're past our target or empty, so idle */
 		ailp->xa_last_pushed_lsn = 0;
 
-		/*
-		 * We clear the XFS_AIL_PUSHING_BIT first before checking
-		 * whether the target has changed. If the target has changed,
-		 * this pushes the requeue race directly onto the result of the
-		 * atomic test/set bit, so we are guaranteed that either the
-		 * the pusher that changed the target or ourselves will requeue
-		 * the work (but not both).
-		 */
-		clear_bit(XFS_AIL_PUSHING_BIT, &ailp->xa_flags);
-		smp_rmb();
-		if (XFS_LSN_CMP(ailp->xa_target, target) == 0 ||
-		    test_and_set_bit(XFS_AIL_PUSHING_BIT, &ailp->xa_flags))
-			return;
-
 		tout = 50;
 	} else if (XFS_LSN_CMP(lsn, target) >= 0) {
 		/*
@@ -522,9 +570,30 @@ out_done:
 		tout = 20;
 	}
 
-	/* There is more to do, requeue us.  */
-	queue_delayed_work(xfs_syncd_wq, &ailp->xa_work,
-					msecs_to_jiffies(tout));
+	return tout;
+}
+
+static int
+xfsaild(
+	void		*data)
+{
+	struct xfs_ail	*ailp = data;
+	long		tout = 0;	/* milliseconds */
+
+	while (!kthread_should_stop()) {
+		if (tout && tout <= 20)
+			__set_current_state(TASK_KILLABLE);
+		else
+			__set_current_state(TASK_INTERRUPTIBLE);
+		schedule_timeout(tout ?
+				 msecs_to_jiffies(tout) : MAX_SCHEDULE_TIMEOUT);
+
+		try_to_freeze();
+
+		tout = xfsaild_push(ailp);
+	}
+
+	return 0;
 }
 
 /*
@@ -559,8 +628,9 @@ xfs_ail_push(
 	 */
 	smp_wmb();
 	xfs_trans_ail_copy_lsn(ailp, &ailp->xa_target, &threshold_lsn);
-	if (!test_and_set_bit(XFS_AIL_PUSHING_BIT, &ailp->xa_flags))
-		queue_delayed_work(xfs_syncd_wq, &ailp->xa_work, 0);
+	smp_wmb();
+
+	wake_up_process(ailp->xa_task);
 }
 
 /*
@@ -645,6 +715,7 @@ xfs_trans_unlocked_item(
 void
 xfs_trans_ail_update_bulk(
 	struct xfs_ail		*ailp,
+	struct xfs_ail_cursor	*cur,
 	struct xfs_log_item	**log_items,
 	int			nr_items,
 	xfs_lsn_t		lsn) __releases(ailp->xa_lock)
@@ -674,7 +745,7 @@ xfs_trans_ail_update_bulk(
 		list_add(&lip->li_ail, &tmp);
 	}
 
-	xfs_ail_splice(ailp, &tmp, lsn);
+	xfs_ail_splice(ailp, cur, &tmp, lsn);
 
 	if (!mlip_changed) {
 		spin_unlock(&ailp->xa_lock);
@@ -794,9 +865,18 @@ xfs_trans_ail_init(
 	ailp->xa_mount = mp;
 	INIT_LIST_HEAD(&ailp->xa_ail);
 	spin_lock_init(&ailp->xa_lock);
-	INIT_DELAYED_WORK(&ailp->xa_work, xfs_ail_worker);
+
+	ailp->xa_task = kthread_run(xfsaild, ailp, "xfsaild/%s",
+			ailp->xa_mount->m_fsname);
+	if (IS_ERR(ailp->xa_task))
+		goto out_free_ailp;
+
 	mp->m_ail = ailp;
 	return 0;
+
+out_free_ailp:
+	kmem_free(ailp);
+	return ENOMEM;
 }
 
 void
@@ -805,6 +885,6 @@ xfs_trans_ail_destroy(
 {
 	struct xfs_ail	*ailp = mp->m_ail;
 
-	cancel_delayed_work_sync(&ailp->xa_work);
+	kthread_stop(ailp->xa_task);
 	kmem_free(ailp);
 }
diff --git a/fs/xfs/xfs_trans_priv.h b/fs/xfs/xfs_trans_priv.h
index 6b164e9..fe2e3cb 100644
--- a/fs/xfs/xfs_trans_priv.h
+++ b/fs/xfs/xfs_trans_priv.h
@@ -64,24 +64,19 @@ struct xfs_ail_cursor {
  */
 struct xfs_ail {
 	struct xfs_mount	*xa_mount;
+	struct task_struct	*xa_task;
 	struct list_head	xa_ail;
 	xfs_lsn_t		xa_target;
 	struct xfs_ail_cursor	xa_cursors;
 	spinlock_t		xa_lock;
-	struct delayed_work	xa_work;
 	xfs_lsn_t		xa_last_pushed_lsn;
-	unsigned long		xa_flags;
 };
 
-#define XFS_AIL_PUSHING_BIT	0
-
 /*
  * From xfs_trans_ail.c
  */
-
-extern struct workqueue_struct	*xfs_ail_wq;	/* AIL workqueue */
-
 void	xfs_trans_ail_update_bulk(struct xfs_ail *ailp,
+				struct xfs_ail_cursor *cur,
 				struct xfs_log_item **log_items, int nr_items,
 				xfs_lsn_t lsn) __releases(ailp->xa_lock);
 static inline void
@@ -90,7 +85,7 @@ xfs_trans_ail_update(
 	struct xfs_log_item	*lip,
 	xfs_lsn_t		lsn) __releases(ailp->xa_lock)
 {
-	xfs_trans_ail_update_bulk(ailp, &lip, 1, lsn);
+	xfs_trans_ail_update_bulk(ailp, NULL, &lip, 1, lsn);
 }
 
 void	xfs_trans_ail_delete_bulk(struct xfs_ail *ailp,
@@ -111,10 +106,13 @@ xfs_lsn_t		xfs_ail_min_lsn(struct xfs_ail *ailp);
 void			xfs_trans_unlocked_item(struct xfs_ail *,
 					xfs_log_item_t *);
 
-struct xfs_log_item	*xfs_trans_ail_cursor_first(struct xfs_ail *ailp,
+struct xfs_log_item *	xfs_trans_ail_cursor_first(struct xfs_ail *ailp,
+					struct xfs_ail_cursor *cur,
+					xfs_lsn_t lsn);
+struct xfs_log_item *	xfs_trans_ail_cursor_last(struct xfs_ail *ailp,
 					struct xfs_ail_cursor *cur,
 					xfs_lsn_t lsn);
-struct xfs_log_item	*xfs_trans_ail_cursor_next(struct xfs_ail *ailp,
+struct xfs_log_item *	xfs_trans_ail_cursor_next(struct xfs_ail *ailp,
 					struct xfs_ail_cursor *cur);
 void			xfs_trans_ail_cursor_done(struct xfs_ail *ailp,
 					struct xfs_ail_cursor *cur);
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index c8008dd..640ded8 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -274,9 +274,7 @@ void thread_group_cputimer(struct task_struct *tsk, struct task_cputime *times)
 	struct task_cputime sum;
 	unsigned long flags;
 
-	spin_lock_irqsave(&cputimer->lock, flags);
 	if (!cputimer->running) {
-		cputimer->running = 1;
 		/*
 		 * The POSIX timer interface allows for absolute time expiry
 		 * values through the TIMER_ABSTIME flag, therefore we have
@@ -284,8 +282,11 @@ void thread_group_cputimer(struct task_struct *tsk, struct task_cputime *times)
 		 * it.
 		 */
 		thread_group_cputime(tsk, &sum);
+		spin_lock_irqsave(&cputimer->lock, flags);
+		cputimer->running = 1;
 		update_gt_cputime(&cputimer->cputime, &sum);
-	}
+	} else
+		spin_lock_irqsave(&cputimer->lock, flags);
 	*times = cputimer->cputime;
 	spin_unlock_irqrestore(&cputimer->lock, flags);
 }
diff --git a/kernel/sys.c b/kernel/sys.c
index 5c942cf..f88dadc 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1135,7 +1135,7 @@ DECLARE_RWSEM(uts_sem);
 static int override_release(char __user *release, int len)
 {
 	int ret = 0;
-	char buf[len];
+	char buf[65];
 
 	if (current->personality & UNAME26) {
 		char *rest = UTS_RELEASE;
diff --git a/mm/migrate.c b/mm/migrate.c
index 666e4e6..14d0a6a 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -120,10 +120,10 @@ static int remove_migration_pte(struct page *new, struct vm_area_struct *vma,
 
 		ptep = pte_offset_map(pmd, addr);
 
-		if (!is_swap_pte(*ptep)) {
-			pte_unmap(ptep);
-			goto out;
-		}
+		/*
+		 * Peek to check is_swap_pte() before taking ptlock?  No, we
+		 * can race mremap's move_ptes(), which skips anon_vma lock.
+		 */
 
 		ptl = pte_lockptr(mm, pmd);
 	}
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 4680b1e..373e14f 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -295,7 +295,8 @@ static struct sock *x25_find_listener(struct x25_address *addr,
 			 * Found a listening socket, now check the incoming
 			 * call user data vs this sockets call user data
 			 */
-			if(skb->len > 0 && x25_sk(s)->cudmatchlength > 0) {
+			if (x25_sk(s)->cudmatchlength > 0 &&
+				skb->len >= x25_sk(s)->cudmatchlength) {
 				if((memcmp(x25_sk(s)->calluserdata.cuddata,
 					skb->data,
 					x25_sk(s)->cudmatchlength)) == 0) {
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 486f6de..981b6fd 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2352,6 +2352,7 @@ static struct snd_pci_quirk position_fix_list[] __devinitdata = {
 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
 	SND_PCI_QUIRK(0x1028, 0x01f6, "Dell Latitude 131L", POS_FIX_LPIB),
+	SND_PCI_QUIRK(0x1028, 0x02c6, "Dell Inspiron 1010", POS_FIX_LPIB),
 	SND_PCI_QUIRK(0x1028, 0x0470, "Dell Inspiron 1120", POS_FIX_LPIB),
 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 7bbc5f2..cf1fa36 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -3097,6 +3097,7 @@ static const struct snd_pci_quirk cxt5066_cfg_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x21c5, "Thinkpad Edge 13", CXT5066_THINKPAD),
 	SND_PCI_QUIRK(0x17aa, 0x21c6, "Thinkpad Edge 13", CXT5066_ASUS),
  	SND_PCI_QUIRK(0x17aa, 0x215e, "Lenovo Thinkpad", CXT5066_THINKPAD),
+	SND_PCI_QUIRK(0x17aa, 0x21cf, "Lenovo T520 & W520", CXT5066_AUTO),
 	SND_PCI_QUIRK(0x17aa, 0x21da, "Lenovo X220", CXT5066_THINKPAD),
 	SND_PCI_QUIRK(0x17aa, 0x21db, "Lenovo X220-tablet", CXT5066_THINKPAD),
 	SND_PCI_QUIRK(0x17aa, 0x3a0d, "Lenovo U350", CXT5066_ASUS),

Re: Linux 3.0.8

[Randy Dunlap]

On 10/24/11 22:19, Greg KH wrote:
> I'm announcing the release of the 3.0.8 kernel.
> 
> All users of the 3.0 kernel series must upgrade.

I noticed that "must" word in 3.0.7 also.  Please explain.


> The updated 3.0.y git tree can be found at (NOTE THE ADDRESS CHANGE):
>         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-3.0.y
> and can be browsed at the normal kernel.org git web browser:
>         http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary


-- 
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***

Re: Linux 3.0.8

[Greg KH]

On Mon, Oct 24, 2011 at 10:40:44PM -0700, Randy Dunlap wrote:
> On 10/24/11 22:19, Greg KH wrote:
> > I'm announcing the release of the 3.0.8 kernel.
> > 
> > All users of the 3.0 kernel series must upgrade.
> 
> I noticed that "must" word in 3.0.7 also.  Please explain.

Nothing new, I've been saying that for years.

greg k-h

Re: Linux 3.0.8

[Valdis.Kletnieks]

[-- Attachment #1: Type: text/plain, Size: 870 bytes --]

On Tue, 25 Oct 2011 09:02:40 +0200, Greg KH said:
> On Mon, Oct 24, 2011 at 10:40:44PM -0700, Randy Dunlap wrote:
> > On 10/24/11 22:19, Greg KH wrote:
> > > All users of the 3.0 kernel series must upgrade.
> > I noticed that "must" word in 3.0.7 also.  Please explain.
> Nothing new, I've been saying that for years.

I think Randy means that out of the 29 commits for .7->.8, there's only one
(Hugh Dicken's mremap fix) and *maybe* Peter Zijlstra's cputimer fix, which
even *possibly* rise to the "all users" level, as everything else is against
XFS or CIFS or ARM or something else that's not an across-the-board issue.

And the changelog for the mremap commit says that "but this lucky report
hints", which sort of implies it's a very hard-to-hit bug that nobody even knew
was there.

So it's not obvious from just the shortlog that it's a "MUST upgrade"  category.

[-- Attachment #2: Type: application/pgp-signature, Size: 227 bytes --]

Re: Linux 3.0.8

[Mike Galbraith]

On Tue, 2011-10-25 at 04:41 -0400, Valdis.Kletnieks@vt.edu wrote:
> On Tue, 25 Oct 2011 09:02:40 +0200, Greg KH said:
> > On Mon, Oct 24, 2011 at 10:40:44PM -0700, Randy Dunlap wrote:
> > > On 10/24/11 22:19, Greg KH wrote:
> > > > All users of the 3.0 kernel series must upgrade.
> > > I noticed that "must" word in 3.0.7 also.  Please explain.
> > Nothing new, I've been saying that for years.
> 
> I think Randy means that out of the 29 commits for .7->.8, there's only one
> (Hugh Dicken's mremap fix) and *maybe* Peter Zijlstra's cputimer fix, which
> even *possibly* rise to the "all users" level, as everything else is against
> XFS or CIFS or ARM or something else that's not an across-the-board issue.
> 
> And the changelog for the mremap commit says that "but this lucky report
> hints", which sort of implies it's a very hard-to-hit bug that nobody even knew
> was there.
> 
> So it's not obvious from just the shortlog that it's a "MUST upgrade"  category.

Seems like perfectly fine boilerplate to me.  If I want the warmest
fuzzy I can get, I must upgrade.  Peter's patch fixed a box killer that
I don't care to hit (dead bugs being kinda boring), so I must upgrade.

	-Mike

Re: Linux 3.0.8

[Randy Dunlap]

On 10/26/11 01:14, Mike Galbraith wrote:
> On Tue, 2011-10-25 at 04:41 -0400, Valdis.Kletnieks@vt.edu wrote:
>> On Tue, 25 Oct 2011 09:02:40 +0200, Greg KH said:
>>> On Mon, Oct 24, 2011 at 10:40:44PM -0700, Randy Dunlap wrote:
>>>> On 10/24/11 22:19, Greg KH wrote:
>>>>> All users of the 3.0 kernel series must upgrade.
>>>> I noticed that "must" word in 3.0.7 also.  Please explain.
>>> Nothing new, I've been saying that for years.
>>
>> I think Randy means that out of the 29 commits for .7->.8, there's only one
>> (Hugh Dicken's mremap fix) and *maybe* Peter Zijlstra's cputimer fix, which
>> even *possibly* rise to the "all users" level, as everything else is against
>> XFS or CIFS or ARM or something else that's not an across-the-board issue.
>>
>> And the changelog for the mremap commit says that "but this lucky report
>> hints", which sort of implies it's a very hard-to-hit bug that nobody even knew
>> was there.
>>
>> So it's not obvious from just the shortlog that it's a "MUST upgrade"  category.
> 
> Seems like perfectly fine boilerplate to me.  If I want the warmest
> fuzzy I can get, I must upgrade.  Peter's patch fixed a box killer that
> I don't care to hit (dead bugs being kinda boring), so I must upgrade.

Sure, if it's just boilerplate, that's fine.
My mistake was thinking that it was something new & different.


-- 
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***

Re: Linux 3.0.8

[Paul Bolle]

On Tue, 2011-10-25 at 07:19 +0200, Greg KH wrote:
> The updated 3.0.y git tree can be found at (NOTE THE ADDRESS CHANGE):
>         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-3.0.y
> and can be browsed at the normal kernel.org git web browser:
>         http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary

Somehow I seem to be able to generate perfect copies of patch-3.0.4.bz2
(and earlier), by simply doing a command like:
    git diff v3.0 v3.04 | bzip2 -9 > patch-3.0.4-git.bz2 

But for patch-3.0.5 (and above) trivial commands like
     git diff v3.0 v3.0.8 > patch-3.0.8-git

do not generate perfect copies anymore. Have you perhaps changed the way
you generate the patches since v3.0.5?  Not that this matters much,
since tags v3.0.5 (and up) are signed by your "Linux kernel stable
release signing key", but I still wonder what could cause this
difference. Maybe it's just a git upgrade on your side.


Paul Bolle

Re: Linux 3.0.8

[Greg KH]

On Thu, Oct 27, 2011 at 02:02:49PM +0200, Paul Bolle wrote:
> On Tue, 2011-10-25 at 07:19 +0200, Greg KH wrote:
> > The updated 3.0.y git tree can be found at (NOTE THE ADDRESS CHANGE):
> >         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-3.0.y
> > and can be browsed at the normal kernel.org git web browser:
> >         http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary
> 
> Somehow I seem to be able to generate perfect copies of patch-3.0.4.bz2
> (and earlier), by simply doing a command like:
>     git diff v3.0 v3.04 | bzip2 -9 > patch-3.0.4-git.bz2 
> 
> But for patch-3.0.5 (and above) trivial commands like
>      git diff v3.0 v3.0.8 > patch-3.0.8-git
> 
> do not generate perfect copies anymore. Have you perhaps changed the way
> you generate the patches since v3.0.5?  Not that this matters much,
> since tags v3.0.5 (and up) are signed by your "Linux kernel stable
> release signing key", but I still wonder what could cause this
> difference. Maybe it's just a git upgrade on your side.

We have found out that different versions of git will generate different
patches.  The end result of the patch when you apply it will always be
the same, but this is a non-trivial problem to solve.

That's why we generate the patches on our local machine and upload them,
instead of just generating the signature and having the server create
it.

Can you verify that the end result from your patch, and my patch,
produces the same tree?  If not, we need to resolve that.

thanks,

greg k-h

Re: Linux 3.0.8

[Paul Bolle]

On Thu, 2011-10-27 at 14:08 +0200, Greg KH wrote:
> Can you verify that the end result from your patch, and my patch,
> produces the same tree?  If not, we need to resolve that.

Yes, they do produce the same tree.

Ie, if I commit the changes introduced by your patch-3.0.8 onto v3.0 I
get a HEAD that is identical to v3.0.8 (as a git diff between these two
shows nothing). And the (git diff) patches I can generate locally
between v3.0 and either that HEAD or v3.0.8 are identical (but not
identical to your patch-3.0.8, obviously).

So, it's just that git generated a different patch on your system than
it does on mine.

Thanks,


Paul Bolle