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authorDan Williams <dan.j.williams@intel.com>2016-07-25 06:55:45 +0200
committerDan Williams <dan.j.williams@intel.com>2016-08-24 07:58:51 +0200
commit3bc52c45bac26bf7ed1dc8d287ad1aeaed1250b6 (patch)
tree3ac261a353583b2490ce2b65a4da4941085308ea /fs/char_dev.c
parentdax: convert to the cdev api (diff)
downloadlinux-3bc52c45bac26bf7ed1dc8d287ad1aeaed1250b6.tar.xz
linux-3bc52c45bac26bf7ed1dc8d287ad1aeaed1250b6.zip
dax: define a unified inode/address_space for device-dax mappings
In support of enabling resize / truncate of device-dax instances, define a pseudo-fs to provide a unified inode/address space for vm operations. Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'fs/char_dev.c')
-rw-r--r--fs/char_dev.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/char_dev.c b/fs/char_dev.c
index 6edd825231c5..44a240c4bb65 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -406,6 +406,7 @@ void cd_forget(struct inode *inode)
spin_lock(&cdev_lock);
list_del_init(&inode->i_devices);
inode->i_cdev = NULL;
+ inode->i_mapping = &inode->i_data;
spin_unlock(&cdev_lock);
}