From: kernel test robot <lkp@intel.com>
To: Ackerley Tng <ackerleytng@google.com>
Cc: oe-kbuild-all@lists.linux.dev, Isaku Yamahata <isaku.yamahata@intel.com>
Subject: [intel-tdx:kvm-upstream-workaround 349/365] mm/hugetlb.c:6843: warning: expecting prototype for Reserves pages between vma indices @from and @to by handling accounting in(). Prototype was for hugetlb_reserve_pages() instead
Date: Sun, 16 Jul 2023 10:28:08 +0800 [thread overview]
Message-ID: <202307161037.9JQvrf10-lkp@intel.com> (raw)
tree: https://github.com/intel/tdx.git kvm-upstream-workaround
head: da8c3aa0cbb638a0dff13401bc17f817272110e6
commit: c8c40c9db949fdf0d8844aaf62ddd4a02febdb42 [349/365] mm: hugetlb: Decouple hstate, subpool from inode
config: i386-randconfig-r005-20230716 (https://download.01.org/0day-ci/archive/20230716/202307161037.9JQvrf10-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce: (https://download.01.org/0day-ci/archive/20230716/202307161037.9JQvrf10-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202307161037.9JQvrf10-lkp@intel.com/
All warnings (new ones prefixed by >>):
mm/hugetlb.c:6843: warning: Function parameter or member 'h' not described in 'hugetlb_reserve_pages'
mm/hugetlb.c:6843: warning: Function parameter or member 'spool' not described in 'hugetlb_reserve_pages'
mm/hugetlb.c:6843: warning: Function parameter or member 'inode' not described in 'hugetlb_reserve_pages'
mm/hugetlb.c:6843: warning: Function parameter or member 'from' not described in 'hugetlb_reserve_pages'
mm/hugetlb.c:6843: warning: Function parameter or member 'to' not described in 'hugetlb_reserve_pages'
mm/hugetlb.c:6843: warning: Function parameter or member 'vma' not described in 'hugetlb_reserve_pages'
mm/hugetlb.c:6843: warning: Function parameter or member 'vm_flags' not described in 'hugetlb_reserve_pages'
>> mm/hugetlb.c:6843: warning: expecting prototype for Reserves pages between vma indices @from and @to by handling accounting in(). Prototype was for hugetlb_reserve_pages() instead
>> mm/hugetlb.c:6996: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Unreserves pages between vma indices @start and @end by handling accounting
--
>> fs/hugetlbfs/inode.c:554: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Remove folio from page_cache and userspace mappings. Also unreserves pages,
vim +6843 mm/hugetlb.c
8f860591ffb2973 Zhang, Yanmin 2006-03-22 6828
c8c40c9db949fdf Ackerley Tng 2023-06-06 6829 /**
c8c40c9db949fdf Ackerley Tng 2023-06-06 6830 * Reserves pages between vma indices @from and @to by handling accounting in:
c8c40c9db949fdf Ackerley Tng 2023-06-06 6831 * + hstate @h (required)
c8c40c9db949fdf Ackerley Tng 2023-06-06 6832 * + subpool @spool (can be NULL)
c8c40c9db949fdf Ackerley Tng 2023-06-06 6833 * + @inode (required if @vma is NULL)
c8c40c9db949fdf Ackerley Tng 2023-06-06 6834 *
c8c40c9db949fdf Ackerley Tng 2023-06-06 6835 * Will setup resv_map in @vma if necessary.
c8c40c9db949fdf Ackerley Tng 2023-06-06 6836 * Return true if reservation was successful, false otherwise.
c8c40c9db949fdf Ackerley Tng 2023-06-06 6837 */
c8c40c9db949fdf Ackerley Tng 2023-06-06 6838 bool hugetlb_reserve_pages(struct hstate *h, struct hugepage_subpool *spool,
c8c40c9db949fdf Ackerley Tng 2023-06-06 6839 struct inode *inode,
a1e78772d72b261 Mel Gorman 2008-07-23 6840 long from, long to,
5a6fe1259506760 Mel Gorman 2009-02-10 6841 struct vm_area_struct *vma,
ca16d140af91feb KOSAKI Motohiro 2011-05-26 6842 vm_flags_t vm_flags)
e4e574b767ba631 Adam Litke 2007-10-16 @6843 {
c5094ec79cbe487 Mike Kravetz 2022-12-16 6844 long chg = -1, add = -1;
9119a41e9091fb3 Joonsoo Kim 2014-04-03 6845 struct resv_map *resv_map;
075a61d07a8eca2 Mina Almasry 2020-04-01 6846 struct hugetlb_cgroup *h_cg = NULL;
0db9d74ed8845a3 Mina Almasry 2020-04-01 6847 long gbl_reserve, regions_needed = 0;
e4e574b767ba631 Adam Litke 2007-10-16 6848
63489f8e8211440 Mike Kravetz 2018-03-22 6849 /* This should never happen */
63489f8e8211440 Mike Kravetz 2018-03-22 6850 if (from > to) {
63489f8e8211440 Mike Kravetz 2018-03-22 6851 VM_WARN(1, "%s called with a negative range\n", __func__);
33b8f84a4ee7849 Mike Kravetz 2021-02-24 6852 return false;
63489f8e8211440 Mike Kravetz 2018-03-22 6853 }
63489f8e8211440 Mike Kravetz 2018-03-22 6854
8d9bfb2608145cf Mike Kravetz 2022-09-14 6855 /*
e700898fa075c69 Mike Kravetz 2022-12-12 6856 * vma specific semaphore used for pmd sharing and fault/truncation
e700898fa075c69 Mike Kravetz 2022-12-12 6857 * synchronization
8d9bfb2608145cf Mike Kravetz 2022-09-14 6858 */
8d9bfb2608145cf Mike Kravetz 2022-09-14 6859 hugetlb_vma_lock_alloc(vma);
8d9bfb2608145cf Mike Kravetz 2022-09-14 6860
17c9d12e126cb0d Mel Gorman 2009-02-11 6861 /*
17c9d12e126cb0d Mel Gorman 2009-02-11 6862 * Only apply hugepage reservation if asked. At fault time, an
17c9d12e126cb0d Mel Gorman 2009-02-11 6863 * attempt will be made for VM_NORESERVE to allocate a page
90481622d75715b David Gibson 2012-03-21 6864 * without using reserves
17c9d12e126cb0d Mel Gorman 2009-02-11 6865 */
ca16d140af91feb KOSAKI Motohiro 2011-05-26 6866 if (vm_flags & VM_NORESERVE)
33b8f84a4ee7849 Mike Kravetz 2021-02-24 6867 return true;
17c9d12e126cb0d Mel Gorman 2009-02-11 6868
a1e78772d72b261 Mel Gorman 2008-07-23 6869 /*
a1e78772d72b261 Mel Gorman 2008-07-23 6870 * Shared mappings base their reservation on the number of pages that
a1e78772d72b261 Mel Gorman 2008-07-23 6871 * are already allocated on behalf of the file. Private mappings need
a1e78772d72b261 Mel Gorman 2008-07-23 6872 * to reserve the full area even if read-only as mprotect() may be
a1e78772d72b261 Mel Gorman 2008-07-23 6873 * called to make the mapping read-write. Assume !vma is a shm mapping
a1e78772d72b261 Mel Gorman 2008-07-23 6874 */
9119a41e9091fb3 Joonsoo Kim 2014-04-03 6875 if (!vma || vma->vm_flags & VM_MAYSHARE) {
f27a5136f70a8c9 Mike Kravetz 2019-05-13 6876 /*
f27a5136f70a8c9 Mike Kravetz 2019-05-13 6877 * resv_map can not be NULL as hugetlb_reserve_pages is only
f27a5136f70a8c9 Mike Kravetz 2019-05-13 6878 * called for inodes for which resv_maps were created (see
f27a5136f70a8c9 Mike Kravetz 2019-05-13 6879 * hugetlbfs_get_inode).
f27a5136f70a8c9 Mike Kravetz 2019-05-13 6880 */
4e35f483850ba46 Joonsoo Kim 2014-04-03 6881 resv_map = inode_resv_map(inode);
9119a41e9091fb3 Joonsoo Kim 2014-04-03 6882
0db9d74ed8845a3 Mina Almasry 2020-04-01 6883 chg = region_chg(resv_map, from, to, ®ions_needed);
9119a41e9091fb3 Joonsoo Kim 2014-04-03 6884 } else {
e9fe92ae0cd28aa Mina Almasry 2020-04-01 6885 /* Private mapping. */
9119a41e9091fb3 Joonsoo Kim 2014-04-03 6886 resv_map = resv_map_alloc();
17c9d12e126cb0d Mel Gorman 2009-02-11 6887 if (!resv_map)
8d9bfb2608145cf Mike Kravetz 2022-09-14 6888 goto out_err;
17c9d12e126cb0d Mel Gorman 2009-02-11 6889
a1e78772d72b261 Mel Gorman 2008-07-23 6890 chg = to - from;
84afd99b8398c9d Andy Whitcroft 2008-07-23 6891
17c9d12e126cb0d Mel Gorman 2009-02-11 6892 set_vma_resv_map(vma, resv_map);
17c9d12e126cb0d Mel Gorman 2009-02-11 6893 set_vma_resv_flags(vma, HPAGE_RESV_OWNER);
17c9d12e126cb0d Mel Gorman 2009-02-11 6894 }
17c9d12e126cb0d Mel Gorman 2009-02-11 6895
33b8f84a4ee7849 Mike Kravetz 2021-02-24 6896 if (chg < 0)
c50ac050811d648 Dave Hansen 2012-05-29 6897 goto out_err;
075a61d07a8eca2 Mina Almasry 2020-04-01 6898
33b8f84a4ee7849 Mike Kravetz 2021-02-24 6899 if (hugetlb_cgroup_charge_cgroup_rsvd(hstate_index(h),
33b8f84a4ee7849 Mike Kravetz 2021-02-24 6900 chg * pages_per_huge_page(h), &h_cg) < 0)
075a61d07a8eca2 Mina Almasry 2020-04-01 6901 goto out_err;
075a61d07a8eca2 Mina Almasry 2020-04-01 6902
075a61d07a8eca2 Mina Almasry 2020-04-01 6903 if (vma && !(vma->vm_flags & VM_MAYSHARE) && h_cg) {
075a61d07a8eca2 Mina Almasry 2020-04-01 6904 /* For private mappings, the hugetlb_cgroup uncharge info hangs
075a61d07a8eca2 Mina Almasry 2020-04-01 6905 * of the resv_map.
075a61d07a8eca2 Mina Almasry 2020-04-01 6906 */
075a61d07a8eca2 Mina Almasry 2020-04-01 6907 resv_map_set_hugetlb_cgroup_uncharge_info(resv_map, h_cg, h);
075a61d07a8eca2 Mina Almasry 2020-04-01 6908 }
075a61d07a8eca2 Mina Almasry 2020-04-01 6909
1c5ecae3a93fa1a Mike Kravetz 2015-04-15 6910 /*
1c5ecae3a93fa1a Mike Kravetz 2015-04-15 6911 * There must be enough pages in the subpool for the mapping. If
1c5ecae3a93fa1a Mike Kravetz 2015-04-15 6912 * the subpool has a minimum size, there may be some global
1c5ecae3a93fa1a Mike Kravetz 2015-04-15 6913 * reservations already in place (gbl_reserve).
1c5ecae3a93fa1a Mike Kravetz 2015-04-15 6914 */
1c5ecae3a93fa1a Mike Kravetz 2015-04-15 6915 gbl_reserve = hugepage_subpool_get_pages(spool, chg);
33b8f84a4ee7849 Mike Kravetz 2021-02-24 6916 if (gbl_reserve < 0)
075a61d07a8eca2 Mina Almasry 2020-04-01 6917 goto out_uncharge_cgroup;
5a6fe1259506760 Mel Gorman 2009-02-10 6918
5a6fe1259506760 Mel Gorman 2009-02-10 6919 /*
17c9d12e126cb0d Mel Gorman 2009-02-11 6920 * Check enough hugepages are available for the reservation.
90481622d75715b David Gibson 2012-03-21 6921 * Hand the pages back to the subpool if there are not
5a6fe1259506760 Mel Gorman 2009-02-10 6922 */
33b8f84a4ee7849 Mike Kravetz 2021-02-24 6923 if (hugetlb_acct_memory(h, gbl_reserve) < 0)
075a61d07a8eca2 Mina Almasry 2020-04-01 6924 goto out_put_pages;
17c9d12e126cb0d Mel Gorman 2009-02-11 6925
17c9d12e126cb0d Mel Gorman 2009-02-11 6926 /*
17c9d12e126cb0d Mel Gorman 2009-02-11 6927 * Account for the reservations made. Shared mappings record regions
17c9d12e126cb0d Mel Gorman 2009-02-11 6928 * that have reservations as they are shared by multiple VMAs.
17c9d12e126cb0d Mel Gorman 2009-02-11 6929 * When the last VMA disappears, the region map says how much
17c9d12e126cb0d Mel Gorman 2009-02-11 6930 * the reservation was and the page cache tells how much of
17c9d12e126cb0d Mel Gorman 2009-02-11 6931 * the reservation was consumed. Private mappings are per-VMA and
17c9d12e126cb0d Mel Gorman 2009-02-11 6932 * only the consumed reservations are tracked. When the VMA
17c9d12e126cb0d Mel Gorman 2009-02-11 6933 * disappears, the original reservation is the VMA size and the
17c9d12e126cb0d Mel Gorman 2009-02-11 6934 * consumed reservations are stored in the map. Hence, nothing
17c9d12e126cb0d Mel Gorman 2009-02-11 6935 * else has to be done for private mappings here
17c9d12e126cb0d Mel Gorman 2009-02-11 6936 */
33039678c8da813 Mike Kravetz 2015-06-24 6937 if (!vma || vma->vm_flags & VM_MAYSHARE) {
075a61d07a8eca2 Mina Almasry 2020-04-01 6938 add = region_add(resv_map, from, to, regions_needed, h, h_cg);
33039678c8da813 Mike Kravetz 2015-06-24 6939
0db9d74ed8845a3 Mina Almasry 2020-04-01 6940 if (unlikely(add < 0)) {
0db9d74ed8845a3 Mina Almasry 2020-04-01 6941 hugetlb_acct_memory(h, -gbl_reserve);
075a61d07a8eca2 Mina Almasry 2020-04-01 6942 goto out_put_pages;
0db9d74ed8845a3 Mina Almasry 2020-04-01 6943 } else if (unlikely(chg > add)) {
33039678c8da813 Mike Kravetz 2015-06-24 6944 /*
33039678c8da813 Mike Kravetz 2015-06-24 6945 * pages in this range were added to the reserve
33039678c8da813 Mike Kravetz 2015-06-24 6946 * map between region_chg and region_add. This
d0ce0e47b323a8d Sidhartha Kumar 2023-01-25 6947 * indicates a race with alloc_hugetlb_folio. Adjust
33039678c8da813 Mike Kravetz 2015-06-24 6948 * the subpool and reserve counts modified above
33039678c8da813 Mike Kravetz 2015-06-24 6949 * based on the difference.
33039678c8da813 Mike Kravetz 2015-06-24 6950 */
33039678c8da813 Mike Kravetz 2015-06-24 6951 long rsv_adjust;
33039678c8da813 Mike Kravetz 2015-06-24 6952
d85aecf2844ff02 Miaohe Lin 2021-03-24 6953 /*
d85aecf2844ff02 Miaohe Lin 2021-03-24 6954 * hugetlb_cgroup_uncharge_cgroup_rsvd() will put the
d85aecf2844ff02 Miaohe Lin 2021-03-24 6955 * reference to h_cg->css. See comment below for detail.
d85aecf2844ff02 Miaohe Lin 2021-03-24 6956 */
075a61d07a8eca2 Mina Almasry 2020-04-01 6957 hugetlb_cgroup_uncharge_cgroup_rsvd(
075a61d07a8eca2 Mina Almasry 2020-04-01 6958 hstate_index(h),
075a61d07a8eca2 Mina Almasry 2020-04-01 6959 (chg - add) * pages_per_huge_page(h), h_cg);
075a61d07a8eca2 Mina Almasry 2020-04-01 6960
33039678c8da813 Mike Kravetz 2015-06-24 6961 rsv_adjust = hugepage_subpool_put_pages(spool,
33039678c8da813 Mike Kravetz 2015-06-24 6962 chg - add);
33039678c8da813 Mike Kravetz 2015-06-24 6963 hugetlb_acct_memory(h, -rsv_adjust);
d85aecf2844ff02 Miaohe Lin 2021-03-24 6964 } else if (h_cg) {
d85aecf2844ff02 Miaohe Lin 2021-03-24 6965 /*
d85aecf2844ff02 Miaohe Lin 2021-03-24 6966 * The file_regions will hold their own reference to
d85aecf2844ff02 Miaohe Lin 2021-03-24 6967 * h_cg->css. So we should release the reference held
d85aecf2844ff02 Miaohe Lin 2021-03-24 6968 * via hugetlb_cgroup_charge_cgroup_rsvd() when we are
d85aecf2844ff02 Miaohe Lin 2021-03-24 6969 * done.
d85aecf2844ff02 Miaohe Lin 2021-03-24 6970 */
d85aecf2844ff02 Miaohe Lin 2021-03-24 6971 hugetlb_cgroup_put_rsvd_cgroup(h_cg);
33039678c8da813 Mike Kravetz 2015-06-24 6972 }
33039678c8da813 Mike Kravetz 2015-06-24 6973 }
33b8f84a4ee7849 Mike Kravetz 2021-02-24 6974 return true;
33b8f84a4ee7849 Mike Kravetz 2021-02-24 6975
075a61d07a8eca2 Mina Almasry 2020-04-01 6976 out_put_pages:
075a61d07a8eca2 Mina Almasry 2020-04-01 6977 /* put back original number of pages, chg */
075a61d07a8eca2 Mina Almasry 2020-04-01 6978 (void)hugepage_subpool_put_pages(spool, chg);
075a61d07a8eca2 Mina Almasry 2020-04-01 6979 out_uncharge_cgroup:
075a61d07a8eca2 Mina Almasry 2020-04-01 6980 hugetlb_cgroup_uncharge_cgroup_rsvd(hstate_index(h),
075a61d07a8eca2 Mina Almasry 2020-04-01 6981 chg * pages_per_huge_page(h), h_cg);
c50ac050811d648 Dave Hansen 2012-05-29 6982 out_err:
8d9bfb2608145cf Mike Kravetz 2022-09-14 6983 hugetlb_vma_lock_free(vma);
5e9113731a3ce61 Mike Kravetz 2015-09-08 6984 if (!vma || vma->vm_flags & VM_MAYSHARE)
0db9d74ed8845a3 Mina Almasry 2020-04-01 6985 /* Only call region_abort if the region_chg succeeded but the
0db9d74ed8845a3 Mina Almasry 2020-04-01 6986 * region_add failed or didn't run.
0db9d74ed8845a3 Mina Almasry 2020-04-01 6987 */
0db9d74ed8845a3 Mina Almasry 2020-04-01 6988 if (chg >= 0 && add < 0)
0db9d74ed8845a3 Mina Almasry 2020-04-01 6989 region_abort(resv_map, from, to, regions_needed);
f031dd274ccb706 Joonsoo Kim 2014-04-03 6990 if (vma && is_vma_resv_set(vma, HPAGE_RESV_OWNER))
f031dd274ccb706 Joonsoo Kim 2014-04-03 6991 kref_put(&resv_map->refs, resv_map_release);
33b8f84a4ee7849 Mike Kravetz 2021-02-24 6992 return false;
a43a8c39bbb493c Kenneth W Chen 2006-06-23 6993 }
a43a8c39bbb493c Kenneth W Chen 2006-06-23 6994
c8c40c9db949fdf Ackerley Tng 2023-06-06 6995 /**
c8c40c9db949fdf Ackerley Tng 2023-06-06 @6996 * Unreserves pages between vma indices @start and @end by handling accounting
c8c40c9db949fdf Ackerley Tng 2023-06-06 6997 * in:
c8c40c9db949fdf Ackerley Tng 2023-06-06 6998 * + hstate @h (required)
c8c40c9db949fdf Ackerley Tng 2023-06-06 6999 * + subpool @spool (can be NULL)
c8c40c9db949fdf Ackerley Tng 2023-06-06 7000 * + @inode (required)
c8c40c9db949fdf Ackerley Tng 2023-06-06 7001 * + resv_map in @inode (can be NULL)
c8c40c9db949fdf Ackerley Tng 2023-06-06 7002 *
c8c40c9db949fdf Ackerley Tng 2023-06-06 7003 * @freed is the number of pages freed, for updating inode->i_blocks.
c8c40c9db949fdf Ackerley Tng 2023-06-06 7004 *
c8c40c9db949fdf Ackerley Tng 2023-06-06 7005 * Returns 0 on success.
c8c40c9db949fdf Ackerley Tng 2023-06-06 7006 */
c8c40c9db949fdf Ackerley Tng 2023-06-06 7007 long hugetlb_unreserve_pages(struct hstate *h, struct hugepage_subpool *spool,
c8c40c9db949fdf Ackerley Tng 2023-06-06 7008 struct inode *inode, long start, long end, long freed)
a43a8c39bbb493c Kenneth W Chen 2006-06-23 7009 {
4e35f483850ba46 Joonsoo Kim 2014-04-03 7010 struct resv_map *resv_map = inode_resv_map(inode);
9119a41e9091fb3 Joonsoo Kim 2014-04-03 7011 long chg = 0;
1c5ecae3a93fa1a Mike Kravetz 2015-04-15 7012 long gbl_reserve;
45c682a68a87251 Ken Chen 2007-11-14 7013
f27a5136f70a8c9 Mike Kravetz 2019-05-13 7014 /*
f27a5136f70a8c9 Mike Kravetz 2019-05-13 7015 * Since this routine can be called in the evict inode path for all
f27a5136f70a8c9 Mike Kravetz 2019-05-13 7016 * hugetlbfs inodes, resv_map could be NULL.
f27a5136f70a8c9 Mike Kravetz 2019-05-13 7017 */
b5cec28d36f5ee6 Mike Kravetz 2015-09-08 7018 if (resv_map) {
b5cec28d36f5ee6 Mike Kravetz 2015-09-08 7019 chg = region_del(resv_map, start, end);
b5cec28d36f5ee6 Mike Kravetz 2015-09-08 7020 /*
b5cec28d36f5ee6 Mike Kravetz 2015-09-08 7021 * region_del() can fail in the rare case where a region
b5cec28d36f5ee6 Mike Kravetz 2015-09-08 7022 * must be split and another region descriptor can not be
b5cec28d36f5ee6 Mike Kravetz 2015-09-08 7023 * allocated. If end == LONG_MAX, it will not fail.
b5cec28d36f5ee6 Mike Kravetz 2015-09-08 7024 */
b5cec28d36f5ee6 Mike Kravetz 2015-09-08 7025 if (chg < 0)
b5cec28d36f5ee6 Mike Kravetz 2015-09-08 7026 return chg;
b5cec28d36f5ee6 Mike Kravetz 2015-09-08 7027 }
b5cec28d36f5ee6 Mike Kravetz 2015-09-08 7028
45c682a68a87251 Ken Chen 2007-11-14 7029 spin_lock(&inode->i_lock);
e4c6f8bed01f9f9 Eric Sandeen 2009-07-29 7030 inode->i_blocks -= (blocks_per_huge_page(h) * freed);
45c682a68a87251 Ken Chen 2007-11-14 7031 spin_unlock(&inode->i_lock);
45c682a68a87251 Ken Chen 2007-11-14 7032
1c5ecae3a93fa1a Mike Kravetz 2015-04-15 7033 /*
1c5ecae3a93fa1a Mike Kravetz 2015-04-15 7034 * If the subpool has a minimum size, the number of global
1c5ecae3a93fa1a Mike Kravetz 2015-04-15 7035 * reservations to be released may be adjusted.
dddf31a49a0eb85 Miaohe Lin 2021-05-04 7036 *
dddf31a49a0eb85 Miaohe Lin 2021-05-04 7037 * Note that !resv_map implies freed == 0. So (chg - freed)
dddf31a49a0eb85 Miaohe Lin 2021-05-04 7038 * won't go negative.
1c5ecae3a93fa1a Mike Kravetz 2015-04-15 7039 */
1c5ecae3a93fa1a Mike Kravetz 2015-04-15 7040 gbl_reserve = hugepage_subpool_put_pages(spool, (chg - freed));
1c5ecae3a93fa1a Mike Kravetz 2015-04-15 7041 hugetlb_acct_memory(h, -gbl_reserve);
b5cec28d36f5ee6 Mike Kravetz 2015-09-08 7042
b5cec28d36f5ee6 Mike Kravetz 2015-09-08 7043 return 0;
a43a8c39bbb493c Kenneth W Chen 2006-06-23 7044 }
93f70f900da36fb Naoya Horiguchi 2010-05-28 7045
:::::: The code at line 6843 was first introduced by commit
:::::: e4e574b767ba63101cfda2b42d72f38546319297 hugetlb: Try to grow hugetlb pool for MAP_SHARED mappings
:::::: TO: Adam Litke <agl@us.ibm.com>
:::::: CC: Linus Torvalds <torvalds@woody.linux-foundation.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2023-07-16 2:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-16 2:28 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2023-07-16 2:49 [intel-tdx:kvm-upstream-workaround 349/365] mm/hugetlb.c:6843: warning: expecting prototype for Reserves pages between vma indices @from and @to by handling accounting in(). Prototype was for hugetlb_reserve_pages() instead kernel test robot
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=202307161037.9JQvrf10-lkp@intel.com \
--to=lkp@intel.com \
--cc=ackerleytng@google.com \
--cc=isaku.yamahata@intel.com \
--cc=oe-kbuild-all@lists.linux.dev \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.