Force a filesystem shutdown when the backing device is known to be dead. I.e. blk_queue_enter() permanently returns -ENODEV. Cc: xfs@xxxxxxxxxxx Suggested-by: Dave Chinner <david@xxxxxxxxxxxxx> Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx> --- fs/block_dev.c | 3 ++- fs/xfs/xfs_super.c | 9 +++++++++ include/linux/fs.h | 2 ++ 3 files changed, 13 insertions(+), 1 deletion(-) diff --git a/fs/block_dev.c b/fs/block_dev.c index 39989e990df9..dfe9a53a7c53 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1802,7 +1802,7 @@ int __invalidate_device(struct block_device *bdev, bool kill_dirty) } EXPORT_SYMBOL(__invalidate_device); -static void generic_bdi_gone(struct super_block *sb) +void generic_bdi_gone(struct super_block *sb) { struct inode *inode, *_inode = NULL; @@ -1828,6 +1828,7 @@ static void generic_bdi_gone(struct super_block *sb) spin_unlock(&sb->s_inode_list_lock); iput(_inode); } +EXPORT_SYMBOL(generic_bdi_gone); void shutdown_partition(struct gendisk *disk, int partno) { diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 36bd8825bfb0..63c36508e9db 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1618,6 +1618,14 @@ xfs_fs_free_cached_objects( return xfs_reclaim_inodes_nr(XFS_M(sb), sc->nr_to_scan); } +static void +xfs_fs_bdi_gone( + struct super_block *sb) +{ + xfs_force_shutdown(XFS_M(sb), SHUTDOWN_DEVICE_REQ); + generic_bdi_gone(sb); +} + static const struct super_operations xfs_super_operations = { .alloc_inode = xfs_fs_alloc_inode, .destroy_inode = xfs_fs_destroy_inode, @@ -1632,6 +1640,7 @@ static const struct super_operations xfs_super_operations = { .show_options = xfs_fs_show_options, .nr_cached_objects = xfs_fs_nr_cached_objects, .free_cached_objects = xfs_fs_free_cached_objects, + .bdi_gone = xfs_fs_bdi_gone, }; static struct file_system_type xfs_fs_type = { diff --git a/include/linux/fs.h b/include/linux/fs.h index 0e201ed38045..b1e8e049e4b8 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2265,6 +2265,7 @@ extern struct super_block *freeze_bdev(struct block_device *); extern void emergency_thaw_all(void); extern int thaw_bdev(struct block_device *bdev, struct super_block *sb); extern int fsync_bdev(struct block_device *); +extern void generic_bdi_gone(struct super_block *sb); extern struct super_block *blockdev_superblock; @@ -2277,6 +2278,7 @@ static inline void bd_forget(struct inode *inode) {} static inline int sync_blockdev(struct block_device *bdev) { return 0; } static inline void kill_bdev(struct block_device *bdev) {} static inline void invalidate_bdev(struct block_device *bdev) {} +static inline void generic_bdi_gone(struct super_block *sb) {} static inline struct super_block *freeze_bdev(struct block_device *sb) { _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs