On Thu, Jan 31, 2019 at 02:41:52PM -0500, John Dorminy wrote:
> > On Wed, Jan 30, 2019 at 09:08:50AM -0500, John Dorminy wrote:
> > > (I use WRITE_SAME to fill devices with a particular pattern in order
> > > to catch failures to initialize disk structures appropriately,
> > > personally, but it's
On Thu, Jan 31, 2019 at 5:39 AM Christoph Hellwig wrote:
>
> On Wed, Jan 30, 2019 at 09:08:50AM -0500, John Dorminy wrote:
> > (I use WRITE_SAME to fill devices with a particular pattern in order
> > to catch failures to initialize disk structures appropriately,
> > personally, but it's just for c
On Wed, Jan 30, 2019 at 09:08:50AM -0500, John Dorminy wrote:
> (I use WRITE_SAME to fill devices with a particular pattern in order
> to catch failures to initialize disk structures appropriately,
> personally, but it's just for convenience/speed.)
How do you use it? We don't have a user interfa
From: Huaisheng Ye
When use persistent memory as cache data device, sometimes
the super block of pmem has messy data stored in it. That would
have risk to lead fn ctr failed to work due to invalid magic or
version.
Here we expand pmem_reinit to optional parameters in order to solve
this issue. W
From: Huaisheng Ye
seq_count is important for flush operations, output it within status
for debugging and analyzing code behavior.
Signed-off-by: Huaisheng Ye
---
drivers/md/dm-writecache.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/md/dm-writecache.c b/dri
From: Huaisheng Ye
writecache_flush_region doesn't use size to calculate flush region.
That uses _set_bits to mark the region in dirty_bitmap directly.
Signed-off-by: Huaisheng Ye
---
drivers/md/dm-writecache.c | 12 ++--
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/dr
From: Huaisheng Ye
writecache_flush_region only works when SSD mode.
If wc->pmem_mode sets, writecache_flush_region doesn't need to be called in
writecache_flush_entry.
Signed-off-by: Huaisheng Ye
---
drivers/md/dm-writecache.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/md/dm
From: Huaisheng Ye
Add intro and usage guide for reinit.
Signed-off-by: Huaisheng Ye
---
Documentation/device-mapper/writecache.txt | 4
1 file changed, 4 insertions(+)
diff --git a/Documentation/device-mapper/writecache.txt
b/Documentation/device-mapper/writecache.txt
index 01532b3..25
On 1/30/2019 10:08 PM, John Dorminy wrote:
Alternately, could possibly WRITE_SAME bios be accepted with the
minimum sector size of the stack rather than the max, e.g. 512 in this
example rather than 4k? They'd need to have a granularity of the
larger sector size, though, presumabily necessitati
From: Huaisheng Ye
This patch set could be used for dm-writecache when use persistent
memory as cache data device.
Patch 1 and 2 go towards removing unused parameter and codes which
actually doesn't really work.
Patch 3 and 4 are targeted at solving problem fn ctr failed to work
due to invalid
10 matches
Mail list logo
