From: kbuild test robot <lkp@intel.com>
To: Leonardo Bras <leonardo@linux.ibm.com>
Cc: kbuild-all@lists.01.org,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Arnd Bergmann <arnd@arndb.de>,
Andrew Morton <akpm@linux-foundation.org>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
Nicholas Piggin <npiggin@gmail.com>,
Christophe Leroy <christophe.leroy@c-s.fr>,
Steven Price <steven.price@arm.com>,
Robin Murphy <robin.murphy@arm.com>,
Leonardo Bras <leonardo@linux.ibm.com>,
Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>,
Balbir Singh <bsingharora@gmail.com>,
Reza Arbab <arbab@linux.ibm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Allison Randal <allison@lohutok.net>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Mike Rapoport <rppt@linux.ibm.com>,
Michal Suchanek <msuchanek@suse.de>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
kvm-ppc@vger.kernel.org, linux-arch@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [PATCH v6 02/11] mm/gup: Use functions to track lockless pgtbl walks on gup_pgd_range
Date: Fri, 7 Feb 2020 09:19:40 +0800 [thread overview]
Message-ID: <202002070928.0W7YYLih%lkp@intel.com> (raw)
In-Reply-To: <20200206030900.147032-3-leonardo@linux.ibm.com>
[-- Attachment #1: Type: text/plain, Size: 3079 bytes --]
Hi Leonardo,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on powerpc/next]
[also build test ERROR on paulus-powerpc/kvm-ppc-next linus/master v5.5 next-20200206]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/Leonardo-Bras/Introduces-new-functions-for-tracking-lockless-pagetable-walks/20200207-071035
base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: i386-tinyconfig (attached as .config)
compiler: gcc-7 (Debian 7.5.0-3) 7.5.0
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
mm/gup.c: In function 'get_user_pages_fast':
>> mm/gup.c:2435:27: error: 'IRQS_ENABLED' undeclared (first use in this function); did you mean 'IS_ENABLED'?
end_lockless_pgtbl_walk(IRQS_ENABLED);
^~~~~~~~~~~~
IS_ENABLED
mm/gup.c:2435:27: note: each undeclared identifier is reported only once for each function it appears in
vim +2435 mm/gup.c
2395
2396 /**
2397 * get_user_pages_fast() - pin user pages in memory
2398 * @start: starting user address
2399 * @nr_pages: number of pages from start to pin
2400 * @gup_flags: flags modifying pin behaviour
2401 * @pages: array that receives pointers to the pages pinned.
2402 * Should be at least nr_pages long.
2403 *
2404 * Attempt to pin user pages in memory without taking mm->mmap_sem.
2405 * If not successful, it will fall back to taking the lock and
2406 * calling get_user_pages().
2407 *
2408 * Returns number of pages pinned. This may be fewer than the number
2409 * requested. If nr_pages is 0 or negative, returns 0. If no pages
2410 * were pinned, returns -errno.
2411 */
2412 int get_user_pages_fast(unsigned long start, int nr_pages,
2413 unsigned int gup_flags, struct page **pages)
2414 {
2415 unsigned long addr, len, end;
2416 int nr = 0, ret = 0;
2417
2418 if (WARN_ON_ONCE(gup_flags & ~(FOLL_WRITE | FOLL_LONGTERM)))
2419 return -EINVAL;
2420
2421 start = untagged_addr(start) & PAGE_MASK;
2422 addr = start;
2423 len = (unsigned long) nr_pages << PAGE_SHIFT;
2424 end = start + len;
2425
2426 if (end <= start)
2427 return 0;
2428 if (unlikely(!access_ok((void __user *)start, len)))
2429 return -EFAULT;
2430
2431 if (IS_ENABLED(CONFIG_HAVE_FAST_GUP) &&
2432 gup_fast_permitted(start, end)) {
2433 begin_lockless_pgtbl_walk();
2434 gup_pgd_range(addr, end, gup_flags, pages, &nr);
> 2435 end_lockless_pgtbl_walk(IRQS_ENABLED);
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 7206 bytes --]
next prev parent reply other threads:[~2020-02-07 1:20 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-06 3:08 [PATCH v6 00/11] Introduces new functions for tracking lockless pagetable walks Leonardo Bras
2020-02-06 3:08 ` [PATCH v6 01/11] asm-generic/pgtable: Adds generic functions to track lockless pgtable walks Leonardo Bras
2020-02-06 5:54 ` Christophe Leroy
2020-02-07 2:19 ` Leonardo Bras
2020-02-07 5:39 ` kbuild test robot
2020-02-06 3:08 ` [PATCH v6 02/11] mm/gup: Use functions to track lockless pgtbl walks on gup_pgd_range Leonardo Bras
2020-02-06 3:25 ` Leonardo Bras
[not found] ` <0c2f5a89-4890-fd84-6a6d-e470ba110399@nvidia.com>
2020-02-17 20:55 ` Leonardo Bras
2020-10-15 14:46 ` Michal Suchánek
2020-10-16 3:27 ` Aneesh Kumar K.V
2020-02-07 1:19 ` kbuild test robot [this message]
2020-02-07 8:01 ` kbuild test robot
2020-02-06 3:08 ` [PATCH v6 03/11] powerpc/mm: Adds arch-specificic functions to track lockless pgtable walks Leonardo Bras
2020-02-06 5:46 ` Christophe Leroy
2020-02-07 4:38 ` Leonardo Bras
2020-02-17 20:32 ` Leonardo Bras
2020-02-06 3:08 ` [PATCH v6 04/11] powerpc/mce_power: Use functions to track lockless pgtbl walks Leonardo Bras
2020-02-06 5:48 ` Christophe Leroy
2020-02-07 4:00 ` Leonardo Bras
2020-02-06 3:08 ` [PATCH v6 05/11] powerpc/perf: " Leonardo Bras
2020-02-06 3:08 ` [PATCH v6 06/11] powerpc/mm/book3s64/hash: " Leonardo Bras
2020-02-06 6:06 ` Christophe Leroy
2020-02-07 3:49 ` Leonardo Bras
2020-02-06 3:08 ` [PATCH v6 07/11] powerpc/kvm/e500: " Leonardo Bras
2020-02-06 6:18 ` Christophe Leroy
2020-02-07 3:10 ` Leonardo Bras
2020-02-06 3:08 ` [PATCH v6 08/11] powerpc/kvm/book3s_hv: " Leonardo Bras
2020-02-06 3:08 ` [PATCH v6 09/11] powerpc/kvm/book3s_64: " Leonardo Bras
2020-02-06 3:08 ` [PATCH v6 10/11] powerpc/mm: Adds counting method to track lockless pagetable walks Leonardo Bras
2020-02-06 6:23 ` Christophe Leroy
2020-02-07 1:56 ` Leonardo Bras
2020-02-06 3:09 ` [PATCH v6 11/11] powerpc/mm/book3s64/pgtable: Uses counting method to skip serializing Leonardo Bras
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=202002070928.0W7YYLih%lkp@intel.com \
--to=lkp@intel.com \
--cc=akpm@linux-foundation.org \
--cc=allison@lohutok.net \
--cc=aneesh.kumar@linux.ibm.com \
--cc=arbab@linux.ibm.com \
--cc=arnd@arndb.de \
--cc=benh@kernel.crashing.org \
--cc=bsingharora@gmail.com \
--cc=christophe.leroy@c-s.fr \
--cc=gregkh@linuxfoundation.org \
--cc=kbuild-all@lists.01.org \
--cc=kvm-ppc@vger.kernel.org \
--cc=leonardo@linux.ibm.com \
--cc=linux-arch@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mahesh@linux.vnet.ibm.com \
--cc=mpe@ellerman.id.au \
--cc=msuchanek@suse.de \
--cc=npiggin@gmail.com \
--cc=paulus@samba.org \
--cc=robin.murphy@arm.com \
--cc=rppt@linux.ibm.com \
--cc=steven.price@arm.com \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).