diff options
| author | John Groves <John@Groves.net> | 2026-03-27 21:05:03 +0000 |
|---|---|---|
| committer | Ira Weiny <ira.weiny@intel.com> | 2026-03-30 08:20:48 -0500 |
| commit | 700ecbc1f5aa02ba9ad68d7be1ef7a9c8eae07e9 (patch) | |
| tree | be7b743bf0eebf89e239af1c97dc39ea01722b78 /include/linux | |
| parent | 099c81a1f0ab3e948d73c5ab2b7a3b702af36e64 (diff) | |
dax: Add dax_set_ops() for setting dax_operations at bind time
Add a new dax_set_ops() function that allows drivers to set the
dax_operations after the dax_device has been allocated. This is needed
for fsdev_dax where the operations need to be set during probe and
cleared during unbind.
The fsdev driver uses devm_add_action_or_reset() for cleanup consistency,
avoiding the complexity of mixing devm-managed resources with manual
cleanup in a remove() callback. This ensures cleanup happens automatically
in the correct reverse order when the device is unbound.
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Signed-off-by: John Groves <john@groves.net>
Link: https://patch.msgid.link/0100019d311d65a0-b9c1419e-f3a0-4afd-b0bd-848f18ff5950-000000@email.amazonses.com
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/dax.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/dax.h b/include/linux/dax.h index 73cfc1a7c8f1..b19bfe0c2fd1 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -243,6 +243,7 @@ static inline void dax_break_layout_final(struct inode *inode) bool dax_alive(struct dax_device *dax_dev); void *dax_get_private(struct dax_device *dax_dev); +int dax_set_ops(struct dax_device *dax_dev, const struct dax_operations *ops); long dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, long nr_pages, enum dax_access_mode mode, void **kaddr, unsigned long *pfn); size_t dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr, |