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authorChristoph Hellwig <hch@lst.de>2015-04-03 05:56:32 +0200
committerTheodore Ts'o <tytso@mit.edu>2015-04-03 05:56:32 +0200
commit08439fec266c3cc5702953b4f54bdf5649357de0 (patch)
tree3d73d9939e890d998d4287a4433ba4a74396afa5 /fs/ext4
parentext4: remove useless condition in if statement. (diff)
downloadlinux-08439fec266c3cc5702953b4f54bdf5649357de0.tar.xz
linux-08439fec266c3cc5702953b4f54bdf5649357de0.zip
ext4: remove block_device_ejected
bdi->dev now never goes away, so this function became useless. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/super.c18
1 files changed, 1 insertions, 17 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index c681352f7c69..e47a552fea05 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -322,22 +322,6 @@ static void save_error_info(struct super_block *sb, const char *func,
ext4_commit_super(sb, 1);
}
-/*
- * The del_gendisk() function uninitializes the disk-specific data
- * structures, including the bdi structure, without telling anyone
- * else. Once this happens, any attempt to call mark_buffer_dirty()
- * (for example, by ext4_commit_super), will cause a kernel OOPS.
- * This is a kludge to prevent these oops until we can put in a proper
- * hook in del_gendisk() to inform the VFS and file system layers.
- */
-static int block_device_ejected(struct super_block *sb)
-{
- struct inode *bd_inode = sb->s_bdev->bd_inode;
- struct backing_dev_info *bdi = inode_to_bdi(bd_inode);
-
- return bdi->dev == NULL;
-}
-
static void ext4_journal_commit_callback(journal_t *journal, transaction_t *txn)
{
struct super_block *sb = journal->j_private;
@@ -4569,7 +4553,7 @@ static int ext4_commit_super(struct super_block *sb, int sync)
struct buffer_head *sbh = EXT4_SB(sb)->s_sbh;
int error = 0;
- if (!sbh || block_device_ejected(sb))
+ if (!sbh)
return error;
if (buffer_write_io_error(sbh)) {
/*