ext4: Convert BUG_ON checks to use ext4_error() instead

Convert a bunch of BUG_ONs to emit a ext4_error() message and return
EIO.  This is a first pass and most notably does _not_ cover
mballoc.c, which is a morass of void functions.

Signed-off-by: Frank Mayhar <fmayhar@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

1 files changed, 36 insertions, 0 deletions

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 5e8f9077b0fc..5a18e9ec7cf9 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -347,6 +347,42 @@ void __ext4_error(struct super_block *sb, const char *function,
         ext4_handle_error(sb);
 }
 
+void ext4_error_inode(const char *function, struct inode *inode,
+                      const char *fmt, ...)
+{
+        va_list args;
+
+        va_start(args, fmt);
+        printk(KERN_CRIT "EXT4-fs error (device %s): %s: inode #%lu: (comm %s) ",
+               inode->i_sb->s_id, function, inode->i_ino, current->comm);
+        vprintk(fmt, args);
+        printk("\n");
+        va_end(args);
+
+        ext4_handle_error(inode->i_sb);
+}
+
+void ext4_error_file(const char *function, struct file *file,
+                     const char *fmt, ...)
+{
+        va_list args;
+        struct inode *inode = file->f_dentry->d_inode;
+        char pathname[80], *path;
+
+        va_start(args, fmt);
+        path = d_path(&(file->f_path), pathname, sizeof(pathname));
+        if (!path)
+                path = "(unknown)";
+        printk(KERN_CRIT
+               "EXT4-fs error (device %s): %s: inode #%lu (comm %s path %s): ",
+               inode->i_sb->s_id, function, inode->i_ino, current->comm, path);
+        vprintk(fmt, args);
+        printk("\n");
+        va_end(args);
+
+        ext4_handle_error(inode->i_sb);
+}
+
 static const char *ext4_decode_error(struct super_block *sb, int errno,
                                      char nbuf[16])
 {