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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-28 12:17:17 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-28 12:17:17 -0700 |
| commit | 1731a47444e7bf66d5cf9415bbd6ac5e3903d719 (patch) | |
| tree | 7cf48a70b8042333e580712e19e8da987ce01afa /include | |
| parent | 0fa8dc423c55ad3bef3cafe16ccc1caec8e4c7d7 (diff) | |
| parent | 273752c9ff03eb83856601b2a3458218bb949e46 (diff) | |
| download | linux-1731a47444e7bf66d5cf9415bbd6ac5e3903d719.tar.bz2 | |
Merge tag 'for-4.13/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- a few DM integrity fixes that improve performance. One that address
inefficiencies in the on-disk journal device layout. Another that
makes use of the block layer's on-stack plugging when writing the
journal.
- a dm-bufio fix for the blk_status_t conversion that went in during
the merge window.
- a few DM raid fixes that address correctness when suspending the
device and a validation fix for validation that occurs during device
activation.
- a couple DM zoned target fixes. Important one being the fix to not
use GFP_KERNEL in the IO path due to concerns about deadlock in
low-memory conditions (e.g. swap over a DM zoned device, etc).
- a DM DAX device fix to make sure dm_dax_flush() is called if the
underlying DAX device is operating as a write cache.
* tag 'for-4.13/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm, dax: Make sure dm_dax_flush() is called if device supports it
dm verity fec: fix GFP flags used with mempool_alloc()
dm zoned: use GFP_NOIO in I/O path
dm zoned: remove test for impossible REQ_OP_FLUSH conditions
dm raid: bump target version
dm raid: avoid mddev->suspended access
dm raid: fix activation check in validate_raid_redundancy()
dm raid: remove WARN_ON() in raid10_md_layout_to_format()
dm bufio: fix error code in dm_bufio_write_dirty_buffers()
dm integrity: test for corrupted disk format during table load
dm integrity: WARN_ON if variables representing journal usage get out of sync
dm integrity: use plugging when writing the journal
dm integrity: fix inefficient allocation of journal space
Diffstat (limited to 'include')
| -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 794811875732..df97b7af7e2c 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -87,6 +87,7 @@ size_t dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr, void dax_flush(struct dax_device *dax_dev, pgoff_t pgoff, void *addr, size_t size); void dax_write_cache(struct dax_device *dax_dev, bool wc); +bool dax_write_cache_enabled(struct dax_device *dax_dev); /* * We use lowest available bit in exceptional entry for locking, one bit for |