Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6

11 files changed, 69 insertions, 40 deletions

diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c
index 77ebc3c263d6..549b0144da11 100644
--- a/fs/bio-integrity.c
+++ b/fs/bio-integrity.c
@@ -140,7 +140,6 @@ int bio_integrity_add_page(struct bio *bio, struct page *page,
 
 	iv = bip_vec_idx(bip, bip->bip_vcnt);
 	BUG_ON(iv == NULL);
-	BUG_ON(iv->bv_page != NULL);
 
 	iv->bv_page = page;
 	iv->bv_len = len;
@@ -465,7 +464,7 @@ static int bio_integrity_verify(struct bio *bio)
 
 		if (ret) {
 			kunmap_atomic(kaddr, KM_USER0);
-			break;
+			return ret;
 		}
 
 		sectors = bv->bv_len / bi->sector_size;
@@ -493,18 +492,13 @@ static void bio_integrity_verify_fn(struct work_struct *work)
 	struct bio_integrity_payload *bip =
 		container_of(work, struct bio_integrity_payload, bip_work);
 	struct bio *bio = bip->bip_bio;
-	int error = bip->bip_error;
+	int error;
 
-	if (bio_integrity_verify(bio)) {
-		clear_bit(BIO_UPTODATE, &bio->bi_flags);
-		error = -EIO;
-	}
+	error = bio_integrity_verify(bio);
 
 	/* Restore original bio completion handler */
 	bio->bi_end_io = bip->bip_end_io;
-
-	if (bio->bi_end_io)
-		bio->bi_end_io(bio, error);
+	bio_endio(bio, error);
 }
 
 /**
@@ -525,7 +519,17 @@ void bio_integrity_endio(struct bio *bio, int error)
 
 	BUG_ON(bip->bip_bio != bio);
 
-	bip->bip_error = error;
+	/* In case of an I/O error there is no point in verifying the
+	 * integrity metadata.  Restore original bio end_io handler
+	 * and run it.
+	 */
+	if (error) {
+		bio->bi_end_io = bip->bip_end_io;
+		bio_endio(bio, error);
+
+		return;
+	}
+
 	INIT_WORK(&bip->bip_work, bio_integrity_verify_fn);
 	queue_work(kintegrityd_wq, &bip->bip_work);
 }
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 5235c67e7594..c8f8d5904f5e 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -538,6 +538,7 @@ static int dev_ifsioc(unsigned int fd, unsigned int cmd, unsigned long arg)
 		 * cannot be fixed without breaking all existing apps.
 		 */
 		case TUNSETIFF:
+		case TUNGETIFF:
 		case SIOCGIFFLAGS:
 		case SIOCGIFMETRIC:
 		case SIOCGIFMTU:
@@ -1982,6 +1983,11 @@ COMPATIBLE_IOCTL(TUNSETNOCSUM)
 COMPATIBLE_IOCTL(TUNSETDEBUG)
 COMPATIBLE_IOCTL(TUNSETPERSIST)
 COMPATIBLE_IOCTL(TUNSETOWNER)
+COMPATIBLE_IOCTL(TUNSETLINK)
+COMPATIBLE_IOCTL(TUNSETGROUP)
+COMPATIBLE_IOCTL(TUNGETFEATURES)
+COMPATIBLE_IOCTL(TUNSETOFFLOAD)
+COMPATIBLE_IOCTL(TUNSETTXFILTER)
 /* Big V */
 COMPATIBLE_IOCTL(VT_SETMODE)
 COMPATIBLE_IOCTL(VT_GETMODE)
@@ -2573,6 +2579,7 @@ HANDLE_IOCTL(SIOCGIFPFLAGS, dev_ifsioc)
 HANDLE_IOCTL(SIOCGIFTXQLEN, dev_ifsioc)
 HANDLE_IOCTL(SIOCSIFTXQLEN, dev_ifsioc)
 HANDLE_IOCTL(TUNSETIFF, dev_ifsioc)
+HANDLE_IOCTL(TUNGETIFF, dev_ifsioc)
 HANDLE_IOCTL(SIOCETHTOOL, ethtool_ioctl)
 HANDLE_IOCTL(SIOCBONDENSLAVE, bond_ioctl)
 HANDLE_IOCTL(SIOCBONDRELEASE, bond_ioctl)
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index 69a3d19ca9fd..4db4ffa1edad 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -1358,7 +1358,7 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
 	struct fake_dirent *fde;
 
 	blocksize =  dir->i_sb->s_blocksize;
-	dxtrace(printk("Creating index\n"));
+	dxtrace(printk(KERN_DEBUG "Creating index: inode %lu\n", dir->i_ino));
 	retval = ext3_journal_get_write_access(handle, bh);
 	if (retval) {
 		ext3_std_error(dir->i_sb, retval);
@@ -1367,6 +1367,19 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
 	}
 	root = (struct dx_root *) bh->b_data;
 
+	/* The 0th block becomes the root, move the dirents out */
+	fde = &root->dotdot;
+	de = (struct ext3_dir_entry_2 *)((char *)fde +
+			ext3_rec_len_from_disk(fde->rec_len));
+	if ((char *) de >= (((char *) root) + blocksize)) {
+		ext3_error(dir->i_sb, __func__,
+			   "invalid rec_len for '..' in inode %lu",
+			   dir->i_ino);
+		brelse(bh);
+		return -EIO;
+	}
+	len = ((char *) root) + blocksize - (char *) de;
+
 	bh2 = ext3_append (handle, dir, &block, &retval);
 	if (!(bh2)) {
 		brelse(bh);
@@ -1375,11 +1388,6 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
 	EXT3_I(dir)->i_flags |= EXT3_INDEX_FL;
 	data1 = bh2->b_data;
 
-	/* The 0th block becomes the root, move the dirents out */
-	fde = &root->dotdot;
-	de = (struct ext3_dir_entry_2 *)((char *)fde +
-			ext3_rec_len_from_disk(fde->rec_len));
-	len = ((char *) root) + blocksize - (char *) de;
 	memcpy (data1, de, len);
 	de = (struct ext3_dir_entry_2 *) data1;
 	top = data1 + len;
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 6bba06b09dd1..9a50b8052dcf 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -684,15 +684,15 @@ ext4_fsblk_t ext4_count_free_blocks(struct super_block *sb)
 		gdp = ext4_get_group_desc(sb, i, NULL);
 		if (!gdp)
 			continue;
-		desc_count += le16_to_cpu(gdp->bg_free_blocks_count);
+		desc_count += ext4_free_blks_count(sb, gdp);
 		brelse(bitmap_bh);
 		bitmap_bh = ext4_read_block_bitmap(sb, i);
 		if (bitmap_bh == NULL)
 			continue;
 
 		x = ext4_count_free(bitmap_bh, sb->s_blocksize);
-		printk(KERN_DEBUG "group %lu: stored = %d, counted = %u\n",
-			i, le16_to_cpu(gdp->bg_free_blocks_count), x);
+		printk(KERN_DEBUG "group %u: stored = %d, counted = %u\n",
+			i, ext4_free_blks_count(sb, gdp), x);
 		bitmap_count += x;
 	}
 	brelse(bitmap_bh);
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index c668e4377d76..aafc9eba1c25 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1206,8 +1206,11 @@ static inline void ext4_r_blocks_count_set(struct ext4_super_block *es,
 
 static inline loff_t ext4_isize(struct ext4_inode *raw_inode)
 {
-	return ((loff_t)le32_to_cpu(raw_inode->i_size_high) << 32) |
-		le32_to_cpu(raw_inode->i_size_lo);
+	if (S_ISREG(le16_to_cpu(raw_inode->i_mode)))
+		return ((loff_t)le32_to_cpu(raw_inode->i_size_high) << 32) |
+			le32_to_cpu(raw_inode->i_size_lo);
+	else
+		return (loff_t) le32_to_cpu(raw_inode->i_size_lo);
 }
 
 static inline void ext4_isize_set(struct ext4_inode *raw_inode, loff_t i_size)
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 54bf0623a9ae..e2eab196875f 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3048,7 +3048,7 @@ retry:
 			WARN_ON(ret <= 0);
 			printk(KERN_ERR "%s: ext4_ext_get_blocks "
 				    "returned error inode#%lu, block=%u, "
-				    "max_blocks=%lu", __func__,
+				    "max_blocks=%u", __func__,
 				    inode->i_ino, block, max_blocks);
 #endif
 			ext4_mark_inode_dirty(handle, inode);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index a6444cee0c7e..03ba20be1329 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -360,9 +360,9 @@ static int ext4_block_to_path(struct inode *inode,
 		final = ptrs;
 	} else {
 		ext4_warning(inode->i_sb, "ext4_block_to_path",
-				"block %lu > max",
+				"block %lu > max in inode %lu",
 				i_block + direct_blocks +
-				indirect_blocks + double_blocks);
+				indirect_blocks + double_blocks, inode->i_ino);
 	}
 	if (boundary)
 		*boundary = final - 1 - (i_block & (ptrs - 1));
@@ -2821,9 +2821,6 @@ static sector_t ext4_bmap(struct address_space *mapping, sector_t block)
 		filemap_write_and_wait(mapping);
 	}
 
-	BUG_ON(!EXT4_JOURNAL(inode) &&
-	       EXT4_I(inode)->i_state & EXT4_STATE_JDATA);
-
 	if (EXT4_JOURNAL(inode) && EXT4_I(inode)->i_state & EXT4_STATE_JDATA) {
 		/*
 		 * This is a REALLY heavyweight approach, but the use of
@@ -3622,7 +3619,7 @@ static void ext4_free_data(handle_t *handle, struct inode *inode,
 		 * block pointed to itself, it would have been detached when
 		 * the block was cleared. Check for this instead of OOPSing.
 		 */
-		if (bh2jh(this_bh))
+		if ((EXT4_JOURNAL(inode) == NULL) || bh2jh(this_bh))
 			ext4_handle_dirty_metadata(handle, inode, this_bh);
 		else
 			ext4_error(inode->i_sb, __func__,
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 918aec0c8a11..deba54f6cbed 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3025,7 +3025,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
 		goto out_err;
 
 	ext4_debug("using block group %u(%d)\n", ac->ac_b_ex.fe_group,
-			gdp->bg_free_blocks_count);
+			ext4_free_blks_count(sb, gdp));
 
 	err = ext4_journal_get_write_access(handle, gdp_bh);
 	if (err)
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index fec0b4c2f5f1..ba702bd7910d 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1368,7 +1368,7 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
 	struct fake_dirent *fde;
 
 	blocksize =  dir->i_sb->s_blocksize;
-	dxtrace(printk(KERN_DEBUG "Creating index\n"));
+	dxtrace(printk(KERN_DEBUG "Creating index: inode %lu\n", dir->i_ino));
 	retval = ext4_journal_get_write_access(handle, bh);
 	if (retval) {
 		ext4_std_error(dir->i_sb, retval);
@@ -1377,6 +1377,20 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
 	}
 	root = (struct dx_root *) bh->b_data;
 
+	/* The 0th block becomes the root, move the dirents out */
+	fde = &root->dotdot;
+	de = (struct ext4_dir_entry_2 *)((char *)fde +
+		ext4_rec_len_from_disk(fde->rec_len));
+	if ((char *) de >= (((char *) root) + blocksize)) {
+		ext4_error(dir->i_sb, __func__,
+			   "invalid rec_len for '..' in inode %lu",
+			   dir->i_ino);
+		brelse(bh);
+		return -EIO;
+	}
+	len = ((char *) root) + blocksize - (char *) de;
+
+	/* Allocate new block for the 0th block's dirents */
 	bh2 = ext4_append(handle, dir, &block, &retval);
 	if (!(bh2)) {
 		brelse(bh);
@@ -1385,11 +1399,6 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
 	EXT4_I(dir)->i_flags |= EXT4_INDEX_FL;
 	data1 = bh2->b_data;
 
-	/* The 0th block becomes the root, move the dirents out */
-	fde = &root->dotdot;
-	de = (struct ext4_dir_entry_2 *)((char *)fde +
-		ext4_rec_len_from_disk(fde->rec_len));
-	len = ((char *) root) + blocksize - (char *) de;
 	memcpy (data1, de, len);
 	de = (struct ext4_dir_entry_2 *) data1;
 	top = data1 + len;
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index c328be5d6885..c06886abd658 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -861,12 +861,13 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
 	gdp = (struct ext4_group_desc *)((char *)primary->b_data +
 					 gdb_off * EXT4_DESC_SIZE(sb));
 
+	memset(gdp, 0, EXT4_DESC_SIZE(sb));
 	ext4_block_bitmap_set(sb, gdp, input->block_bitmap); /* LV FIXME */
 	ext4_inode_bitmap_set(sb, gdp, input->inode_bitmap); /* LV FIXME */
 	ext4_inode_table_set(sb, gdp, input->inode_table); /* LV FIXME */
 	ext4_free_blks_set(sb, gdp, input->free_blocks_count);
 	ext4_free_inodes_set(sb, gdp, EXT4_INODES_PER_GROUP(sb));
-	gdp->bg_flags |= cpu_to_le16(EXT4_BG_INODE_ZEROED);
+	gdp->bg_flags = cpu_to_le16(EXT4_BG_INODE_ZEROED);
 	gdp->bg_checksum = ext4_group_desc_csum(sbi, input->group, gdp);
 
 	/*
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 56675306ed81..eb343008eded 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -37,10 +37,10 @@
 #include <linux/proc_fs.h>
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
+#include <linux/math64.h>
 
 #include <asm/uaccess.h>
 #include <asm/page.h>
-#include <asm/div64.h>
 
 EXPORT_SYMBOL(jbd2_journal_start);
 EXPORT_SYMBOL(jbd2_journal_restart);
@@ -846,8 +846,8 @@ static int jbd2_seq_info_show(struct seq_file *seq, void *v)
 	    jiffies_to_msecs(s->stats->u.run.rs_flushing / s->stats->ts_tid));
 	seq_printf(seq, "  %ums logging transaction\n",
 	    jiffies_to_msecs(s->stats->u.run.rs_logging / s->stats->ts_tid));
-	seq_printf(seq, "  %luus average transaction commit time\n",
-		   do_div(s->journal->j_average_commit_time, 1000));
+	seq_printf(seq, "  %lluus average transaction commit time\n",
+		   div_u64(s->journal->j_average_commit_time, 1000));
 	seq_printf(seq, "  %lu handles per transaction\n",
 	    s->stats->u.run.rs_handle_count / s->stats->ts_tid);
 	seq_printf(seq, "  %lu blocks per transaction\n",