summaryrefslogtreecommitdiff
path: root/fs/block_dev.c
diff options
context:
space:
mode:
authorDavid Howells <dhowells@redhat.com>2006-08-29 19:06:11 +0100
committerJens Axboe <axboe@nelson.home.kernel.dk>2006-09-30 20:52:27 +0200
commitb71e8a4ce03b3098c7801ee5e6e08d1a39a226c2 (patch)
tree69e287c96181862f911b19dfd37abb968d26bdaf /fs/block_dev.c
parent811d736f9e8013966e1a5a930c0db09508bdbb15 (diff)
[PATCH] BLOCK: Move __invalidate_device() to block_dev.c [try #6]
Move __invalidate_device() from fs/inode.c to fs/block_dev.c so that it can more easily be disabled when the block layer is disabled. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/block_dev.c')
-rw-r--r--fs/block_dev.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 335c38bb86e..0c361ea7e5a 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1315,3 +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);