From the third glance it is fine, as for GFP_NOIO kvmalloc only does
kmalloc allocation and do not try vmalloc. Series is fine, but I will
resend it anyway, cause I found that there is already a patch in
mainstream which dublicates my first patch.
On 11/18/24 14:20, Pavel Tikhomirov wrote:
Oh, from the second glance, it looks like I can't use kvmalloc for the
pool allocation as mempool_alloc tries to call mempool_t->alloc directly
first, and only then fallbacks to elements from pool, but kvmalloc is
not good for GFP_NOIO allocations...
Please disregard this series, I will try to come up with something
better. Probably I just need to switch to kmalloc if see GFP_NOIO in flags.
On 11/18/24 13:54, Pavel Tikhomirov wrote:
note: not yet fully tested (waiting for reproduce)
https://virtuozzo.atlassian.net/browse/VSTOR-94596
Signed-off-by: Pavel Tikhomirov <ptikhomi...@virtuozzo.com>
Pavel Tikhomirov (2):
mempool: add kvmalloc/kvfree version
dm-qcow2: add memory pool for compression buffers
drivers/md/dm-qcow2-map.c | 18 ++++++++++++++----
drivers/md/dm-qcow2-target.c | 18 ++++++++++++++++--
include/linux/mempool.h | 15 +++++++++++++++
mm/mempool.c | 13 +++++++++++++
4 files changed, 58 insertions(+), 6 deletions(-)
--
Best regards, Tikhomirov Pavel
Senior Software Developer, Virtuozzo.
_______________________________________________
Devel mailing list
Devel@openvz.org
https://lists.openvz.org/mailman/listinfo/devel
