linux/drivers/dax
Jane Chu 047218ec90 dax: add .recovery_write dax_operation
Introduce dax_recovery_write() operation. The function is used to
recover a dax range that contains poison. Typical use case is when
a user process receives a SIGBUS with si_code BUS_MCEERR_AR
indicating poison(s) in a dax range, in response, the user process
issues a pwrite() to the page-aligned dax range, thus clears the
poison and puts valid data in the range.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jane Chu <jane.chu@oracle.com>
Link: https://lore.kernel.org/r/20220422224508.440670-6-jane.chu@oracle.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2022-05-16 13:37:59 -07:00
..
hmem dax/hmem: introduce dax_hmem.region_idle parameter 2020-10-13 18:38:28 -07:00
pmem dax: Kill DEV_DAX_PMEM_COMPAT 2021-11-24 19:21:35 -08:00
bus.c Merge branch 'akpm' (patches from Andrew) 2022-01-15 20:37:06 +02:00
bus.h Merge branch 'akpm' (patches from Andrew) 2022-01-15 20:37:06 +02:00
dax-private.h device-dax: add an 'align' attribute 2020-10-13 18:38:28 -07:00
device.c fs: Convert __set_page_dirty_no_writeback to noop_dirty_folio 2022-03-16 13:37:05 -04:00
Kconfig dax: remove CONFIG_DAX_DRIVER 2021-12-04 08:58:51 -08:00
kmem.c dax/kmem: use a single static memory group for a single probed unit 2021-09-08 11:50:23 -07:00
Makefile dax: Kill DEV_DAX_PMEM_COMPAT 2021-11-24 19:21:35 -08:00
pmem.c dax: Kill DEV_DAX_PMEM_COMPAT 2021-11-24 19:21:35 -08:00
super.c dax: add .recovery_write dax_operation 2022-05-16 13:37:59 -07:00