These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 31 insertions, 13 deletions

diff --git a/kernel/fs/hpfs/super.c b/kernel/fs/hpfs/super.c
index 8685c6557..a56159189 100644
--- a/kernel/fs/hpfs/super.c
+++ b/kernel/fs/hpfs/super.c
@@ -199,12 +199,39 @@ static int hpfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 	return 0;
 }
 
+
+long hpfs_ioctl(struct file *file, unsigned cmd, unsigned long arg)
+{
+	switch (cmd) {
+		case FITRIM: {
+			struct fstrim_range range;
+			secno n_trimmed;
+			int r;
+			if (!capable(CAP_SYS_ADMIN))
+				return -EPERM;
+			if (copy_from_user(&range, (struct fstrim_range __user *)arg, sizeof(range)))
+				return -EFAULT;
+			r = hpfs_trim_fs(file_inode(file)->i_sb, range.start >> 9, (range.start + range.len) >> 9, (range.minlen + 511) >> 9, &n_trimmed);
+			if (r)
+				return r;
+			range.len = (u64)n_trimmed << 9;
+			if (copy_to_user((struct fstrim_range __user *)arg, &range, sizeof(range)))
+				return -EFAULT;
+			return 0;
+		}
+		default: {
+			return -ENOIOCTLCMD;
+		}
+	}
+}
+
+
 static struct kmem_cache * hpfs_inode_cachep;
 
 static struct inode *hpfs_alloc_inode(struct super_block *sb)
 {
 	struct hpfs_inode_info *ei;
-	ei = (struct hpfs_inode_info *)kmem_cache_alloc(hpfs_inode_cachep, GFP_NOFS);
+	ei = kmem_cache_alloc(hpfs_inode_cachep, GFP_NOFS);
 	if (!ei)
 		return NULL;
 	ei->vfs_inode.i_version = 1;
@@ -601,6 +628,9 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
 		goto bail4;
 	}
 
+	if (spareblock->n_spares_used)
+		hpfs_load_hotfix_map(s, spareblock);
+
 	/* Load bitmap directory */
 	if (!(sbi->sb_bmp_dir = hpfs_load_bitmap_directory(s, le32_to_cpu(superblock->bitmaps))))
 		goto bail4;
@@ -620,18 +650,6 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
 		mark_buffer_dirty(bh2);
 	}
 
-	if (spareblock->hotfixes_used || spareblock->n_spares_used) {
-		if (errs >= 2) {
-			pr_err("Hotfixes not supported here, try chkdsk\n");
-			mark_dirty(s, 0);
-			goto bail4;
-		}
-		hpfs_error(s, "hotfixes not supported here, try chkdsk");
-		if (errs == 0)
-			pr_err("Proceeding, but your filesystem will be probably corrupted by this driver...\n");
-		else
-			pr_err("This driver may read bad files or crash when operating on disk with hotfixes.\n");
-	}
 	if (le32_to_cpu(spareblock->n_dnode_spares) != le32_to_cpu(spareblock->n_dnode_spares_free)) {
 		if (errs >= 2) {
 			pr_err("Spare dnodes used, try chkdsk\n");