Re: [PATCH v6 05/11] mm: split a folio in minimum folio order chunks

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 5/29/24 15:45, Pankaj Raghav (Samsung) wrote:
From: Luis Chamberlain <mcgrof@xxxxxxxxxx>

split_folio() and split_folio_to_list() assume order 0, to support
minorder we must expand these to check the folio mapping order and use
that.

Set new_order to be at least minimum folio order if it is set in
split_huge_page_to_list() so that we can maintain minimum folio order
requirement in the page cache.

Update the debugfs write files used for testing to ensure the order
is respected as well. We simply enforce the min order when a file
mapping is used.

Signed-off-by: Luis Chamberlain <mcgrof@xxxxxxxxxx>
Signed-off-by: Pankaj Raghav <p.raghav@xxxxxxxxxxx>
---
  include/linux/huge_mm.h | 14 ++++++++----
  mm/huge_memory.c        | 50 ++++++++++++++++++++++++++++++++++++++---
  2 files changed, 57 insertions(+), 7 deletions(-)

Reviewed-by: Hannes Reinecke <hare@xxxxxxx>

Cheers,

Hannes
--
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@xxxxxxx                                +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich





[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux