diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-25 21:37:41 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-25 21:37:41 +0200 |
| commit | a38523185b40fd85d2afe5b5fbfb0952f7153e96 (patch) | |
| tree | 0e93b1fae6f449647cad5b9011442bf33cdc3c5b /drivers | |
| parent | 846e8dd47c264e0b359afed28ea88e0acdee6818 (diff) | |
| parent | 41c9b1be335b5afc3b5fb71c5d16f9d5939cd13f (diff) | |
erge tag 'libnvdimm-fixes-4.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Dan writes:
"libnvdimm/dax for 4.19-rc6
* (2) fixes for the dax error handling updates that were merged for
v4.19-rc1. My mails to Al have been bouncing recently, so I do not have
his ack but the uaccess change is of the trivial / obviously correct
variety. The address_space_operations fixes a regression.
* A filesystem-dax fix to correct the zero page lookup to be compatible
with non-x86 (mips and s390) architectures."
* tag 'libnvdimm-fixes-4.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
device-dax: Add missing address_space_operations
uaccess: Fix is_source param for check_copy_size() in copy_to_iter_mcsafe()
filesystem-dax: Fix use of zero page
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/dax/device.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/dax/device.c b/drivers/dax/device.c index bbe4d72ca105..948806e57cee 100644 --- a/drivers/dax/device.c +++ b/drivers/dax/device.c @@ -535,6 +535,11 @@ static unsigned long dax_get_unmapped_area(struct file *filp, return current->mm->get_unmapped_area(filp, addr, len, pgoff, flags); } +static const struct address_space_operations dev_dax_aops = { + .set_page_dirty = noop_set_page_dirty, + .invalidatepage = noop_invalidatepage, +}; + static int dax_open(struct inode *inode, struct file *filp) { struct dax_device *dax_dev = inode_dax(inode); @@ -544,6 +549,7 @@ static int dax_open(struct inode *inode, struct file *filp) dev_dbg(&dev_dax->dev, "trace\n"); inode->i_mapping = __dax_inode->i_mapping; inode->i_mapping->host = __dax_inode; + inode->i_mapping->a_ops = &dev_dax_aops; filp->f_mapping = inode->i_mapping; filp->f_wb_err = filemap_sample_wb_err(filp->f_mapping); filp->private_data = dev_dax; |