diff options
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index 4346468139e..0c361ea7e5a 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -17,11 +17,13 @@ #include <linux/module.h> #include <linux/blkpg.h> #include <linux/buffer_head.h> +#include <linux/writeback.h> #include <linux/mpage.h> #include <linux/mount.h> #include <linux/uio.h> #include <linux/namei.h> #include <asm/uaccess.h> +#include "internal.h" struct bdev_inode { struct block_device bdev; @@ -1313,3 +1315,24 @@ void close_bdev_excl(struct block_device *bdev) } EXPORT_SYMBOL(close_bdev_excl); + +int __invalidate_device(struct block_device *bdev) +{ + struct super_block *sb = get_super(bdev); + int res = 0; + + if (sb) { + /* + * no need to lock the super, get_super holds the + * read mutex so the filesystem cannot go away + * under us (->put_super runs with the write lock + * hold). + */ + shrink_dcache_sb(sb); + res = invalidate_inodes(sb); + drop_super(sb); + } + invalidate_bdev(bdev, 0); + return res; +} +EXPORT_SYMBOL(__invalidate_device); |