Hi, Shijie
Thank you for the update.
I can not apply your patch and get an error:
# git apply v4-1.patch
error: patch failed: ipcs.c:1150
error: ipcs.c: patch does not apply
And it seems to have some patch conflicts, would you mind double checking? That is very helpful for our review and testing.
Thanks
Lianbo
The linux kernel supports the large folio for page cache by default.
But the current CRASH does not support the large folio.
So we may meet the errors when we detected the large folio sometimes,
such as in the email:
https://www.spinics.net/linux/fedora/redhat-crash-utility/msg11238.html
------------------------------
files: page_to_nid: invalid page: 0
files: page_to_nid: invalid page: 0
files: page_to_nid: invalid page: 0
files: page_to_nid: invalid page: 10
files: page_to_nid: invalid page: 10
files: page_to_nid: invalid page: 10
files: page_to_nid: invalid page: 20
files: page_to_nid: invalid page: 20
files: page_to_nid: invalid page: 20
files: page_to_nid: invalid page: 30
files: page_to_nid: invalid page: 30
files: page_to_nid: invalid page: 30
files: page_to_nid: invalid page: 40
files: page_to_nid: invalid page: 40
files: page_to_nid: invalid page: 40
files: page_to_nid: invalid page: 50
files: page_to_nid: invalid page: 50
files: page_to_nid: invalid page: 50
files: page_to_nid: invalid page: 60
files: page_to_nid: invalid page: 60
------------------------------
The first 3 patches are used to add large folio support for CRASH.
The last patch is newly version of an old patch:
it add "files -n" command.
v3->>v4:
Fixes the BPF bug by:
1.) patch 1: Add a new type for do_xarray_info
2.) patch 3: Check XARRAY_TYPE_PAGE_CACHE for
do_xarray_count()/do_xarray_dump()/do_xarray_dump_cb()
v2-->v3:
Rewrited the folio_order() in patch 2 to work with different
kernel versions.
v1-->v2:
1.) Rebase the kernel to later 7.0-rc1(merge window)
2.) Fixed a bug in the patch 3, the latest kernel supports folios
whose page order is bigger then 5:
"xarray: add large folio support"
Huang Shijie (4):
xarray: add a new parameter for do_xarray
add folio_order function
xarray: add large folio support
add "files -n" command for an inode
bpf.c | 8 ++---
defs.h | 14 +++++++-
dev.c | 4 +--
diskdump.c | 10 ++++--
filesys.c | 94 +++++++++++++++++++++++++++++++++++++++++++++++-------
help.c | 24 +++++++++++++-
ipcs.c | 4 +--
kernel.c | 4 +--
memory.c | 74 ++++++++++++++++++++++++++++++++++++++++--
symbols.c | 6 ++++
task.c | 4 +--
tools.c | 16 ++++++++--
12 files changed, 230 insertions(+), 32 deletions(-)
--
2.43.0