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author | Gang Li <gang.li@linux.dev> | 2024-02-22 17:04:18 +0300 |
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committer | Andrew Morton <akpm@linux-foundation.org> | 2024-03-07 00:04:17 +0300 |
commit | bd5ed02e23958cb56d0f5a90ebe620c8b47dab47 (patch) | |
tree | f74aed31a2559235399ec12100278a1a6a9e6a02 /fs/bcachefs/sb-counters.c | |
parent | eb52286634f042432ec775077a73334603a1c6e4 (diff) | |
download | linux-bd5ed02e23958cb56d0f5a90ebe620c8b47dab47.tar.xz |
padata: downgrade padata_do_multithreaded to serial execution for non-SMP
hugetlb parallelization depends on PADATA, and PADATA depends on SMP.
PADATA consists of two distinct functionality: One part is
padata_do_multithreaded which disregards order and simply divides tasks
into several groups for parallel execution. Hugetlb init parallelization
depends on padata_do_multithreaded.
The other part is composed of a set of APIs that, while handling data in
an out-of-order parallel manner, can eventually return the data with
ordered sequence. Currently Only `crypto/pcrypt.c` use them.
All users of PADATA of non-SMP case currently only use
padata_do_multithreaded. It is easy to implement a serial one in
include/linux/padata.h. And it is not necessary to implement another
functionality unless the only user of crypto/pcrypt.c does not depend on
SMP in the future.
Link: https://lkml.kernel.org/r/20240222140422.393911-6-gang.li@linux.dev
Signed-off-by: Gang Li <ligang.bdlg@bytedance.com>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
Acked-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Jane Chu <jane.chu@oracle.com>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'fs/bcachefs/sb-counters.c')
0 files changed, 0 insertions, 0 deletions