Merge branch 'master' into gfs2

4 files changed, 25 insertions, 23 deletions

diff --git a/fs/udf/file.c b/fs/udf/file.c
index a59e5f33daf6..7aedd552cba1 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -103,19 +103,21 @@ const struct address_space_operations udf_adinicb_aops = {
         .commit_write           = udf_adinicb_commit_write,
 };
 
-static ssize_t udf_file_write(struct file * file, const char __user * buf,
-        size_t count, loff_t *ppos)
+static ssize_t udf_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
+                              unsigned long nr_segs, loff_t ppos)
 {
         ssize_t retval;
+        struct file *file = iocb->ki_filp;
         struct inode *inode = file->f_dentry->d_inode;
         int err, pos;
+        size_t count = iocb->ki_left;
 
         if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB)
         {
                 if (file->f_flags & O_APPEND)
                         pos = inode->i_size;
                 else
-                        pos = *ppos;
+                        pos = ppos;
 
                 if (inode->i_sb->s_blocksize < (udf_file_entry_alloc_offset(inode) +
                         pos + count))
@@ -136,7 +138,7 @@ static ssize_t udf_file_write(struct file * file, const char __user * buf,
                 }
         }
 
-        retval = generic_file_write(file, buf, count, ppos);
+        retval = generic_file_aio_write(iocb, iov, nr_segs, ppos);
 
         if (retval > 0)
                 mark_inode_dirty(inode);
@@ -249,11 +251,13 @@ static int udf_release_file(struct inode * inode, struct file * filp)
 }
 
 const struct file_operations udf_file_operations = {
-        .read                   = generic_file_read,
+        .read                   = do_sync_read,
+        .aio_read               = generic_file_aio_read,
         .ioctl                  = udf_ioctl,
         .open                   = generic_file_open,
         .mmap                   = generic_file_mmap,
-        .write                  = udf_file_write,
+        .write                  = do_sync_write,
+        .aio_write              = udf_file_aio_write,
         .release                = udf_release_file,
         .fsync                  = udf_fsync_file,
         .sendfile               = generic_file_sendfile,
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index b223b32db991..ae21a0e59e95 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -1165,7 +1165,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
                         inode->i_op = &udf_dir_inode_operations;
                         inode->i_fop = &udf_dir_operations;
                         inode->i_mode |= S_IFDIR;
-                        inode->i_nlink ++;
+                        inc_nlink(inode);
                         break;
                 }
                 case ICBTAG_FILE_TYPE_REALTIME:
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index ab9a7629d23e..73163325e5ec 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -762,7 +762,7 @@ static int udf_mkdir(struct inode * dir, struct dentry * dentry, int mode)
                 cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
         cfi.fileCharacteristics |= FID_FILE_CHAR_DIRECTORY;
         udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
-        dir->i_nlink++;
+        inc_nlink(dir);
         mark_inode_dirty(dir);
         d_instantiate(dentry, inode);
         if (fibh.sbh != fibh.ebh)
@@ -876,10 +876,9 @@ static int udf_rmdir(struct inode * dir, struct dentry * dentry)
                 udf_warning(inode->i_sb, "udf_rmdir",
                         "empty directory has nlink != 2 (%d)",
                         inode->i_nlink);
-        inode->i_nlink = 0;
+        clear_nlink(inode);
         inode->i_size = 0;
-        mark_inode_dirty(inode);
-        dir->i_nlink --;
+        inode_dec_link_count(inode);
         inode->i_ctime = dir->i_ctime = dir->i_mtime = current_fs_time(dir->i_sb);
         mark_inode_dirty(dir);
 
@@ -923,8 +922,7 @@ static int udf_unlink(struct inode * dir, struct dentry * dentry)
                 goto end_unlink;
         dir->i_ctime = dir->i_mtime = current_fs_time(dir->i_sb);
         mark_inode_dirty(dir);
-        inode->i_nlink--;
-        mark_inode_dirty(inode);
+        inode_dec_link_count(inode);
         inode->i_ctime = dir->i_ctime;
         retval = 0;
 
@@ -1101,8 +1099,7 @@ out:
         return err;
 
 out_no_entry:
-        inode->i_nlink--;
-        mark_inode_dirty(inode);
+        inode_dec_link_count(inode);
         iput(inode);
         goto out;
 }
@@ -1150,7 +1147,7 @@ static int udf_link(struct dentry * old_dentry, struct inode * dir,
         if (fibh.sbh != fibh.ebh)
                 udf_release_data(fibh.ebh);
         udf_release_data(fibh.sbh);
-        inode->i_nlink ++;
+        inc_nlink(inode);
         inode->i_ctime = current_fs_time(inode->i_sb);
         mark_inode_dirty(inode);
         atomic_inc(&inode->i_count);
@@ -1261,9 +1258,8 @@ static int udf_rename (struct inode * old_dir, struct dentry * old_dentry,
 
         if (new_inode)
         {
-                new_inode->i_nlink--;
                 new_inode->i_ctime = current_fs_time(new_inode->i_sb);
-                mark_inode_dirty(new_inode);
+                inode_dec_link_count(new_inode);
         }
         old_dir->i_ctime = old_dir->i_mtime = current_fs_time(old_dir->i_sb);
         mark_inode_dirty(old_dir);
@@ -1279,16 +1275,14 @@ static int udf_rename (struct inode * old_dir, struct dentry * old_dentry,
                 }
                 else
                         mark_buffer_dirty_inode(dir_bh, old_inode);
-                old_dir->i_nlink --;
-                mark_inode_dirty(old_dir);
+                inode_dec_link_count(old_dir);
                 if (new_inode)
                 {
-                        new_inode->i_nlink --;
-                        mark_inode_dirty(new_inode);
+                        inode_dec_link_count(new_inode);
                 }
                 else
                 {
-                        new_dir->i_nlink ++;
+                        inc_nlink(new_dir);
                         mark_inode_dirty(new_dir);
                 }
         }
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 5dd356cbbda6..1d3b5d2070e5 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -1621,6 +1621,10 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
                 goto error_out;
         }
 
+        if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_READ_ONLY)
+                printk("UDF-fs: Partition marked readonly; forcing readonly mount\n");
+                sb->s_flags |= MS_RDONLY;
+
         if ( udf_find_fileset(sb, &fileset, &rootdir) )
         {
                 printk("UDF-fs: No fileset found\n");