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Date: Mon, 2 Aug 2021 22:41:15 -0700 From: Randy Dunlap <rdunlap@...radead.org> To: akpm@...ux-foundation.org, broonie@...nel.org, linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, linux-mm@...ck.org, linux-next@...r.kernel.org, mhocko@...e.cz, mm-commits@...r.kernel.org, sfr@...b.auug.org.au, Nicholas Piggin <npiggin@...il.com> Subject: Re: mmotm 2021-08-02-18-51 uploaded (struct user_struct when CONFIG_EPOLL is not set) On 8/2/21 6:52 PM, akpm@...ux-foundation.org wrote: > The mm-of-the-moment snapshot 2021-08-02-18-51 has been uploaded to > > https://www.ozlabs.org/~akpm/mmotm/ > > mmotm-readme.txt says > > README for mm-of-the-moment: > > https://www.ozlabs.org/~akpm/mmotm/ > > This is a snapshot of my -mm patch queue. Uploaded at random hopefully > more than once a week. > > You will need quilt to apply these patches to the latest Linus release (5.x > or 5.x-rcY). The series file is in broken-out.tar.gz and is duplicated in > https://ozlabs.org/~akpm/mmotm/series > > The file broken-out.tar.gz contains two datestamp files: .DATE and > .DATE-yyyy-mm-dd-hh-mm-ss. Both contain the string yyyy-mm-dd-hh-mm-ss, > followed by the base kernel version against which this patch series is to > be applied. > I am seeing build errors on i386 or x86_64 when CONFIG_EPOLL is not set: ../kernel/user.c: In function ‘free_user’: ../kernel/user.c:141:30: error: ‘struct user_struct’ has no member named ‘epoll_watches’; did you mean ‘nr_watches’? percpu_counter_destroy(&up->epoll_watches); ^~~~~~~~~~~~~ nr_watches In file included from ../include/linux/sched/user.h:7:0, from ../kernel/user.c:17: ../kernel/user.c: In function ‘alloc_uid’: ../kernel/user.c:189:33: error: ‘struct user_struct’ has no member named ‘epoll_watches’; did you mean ‘nr_watches’? if (percpu_counter_init(&new->epoll_watches, 0, GFP_KERNEL)) { ^ ../include/linux/percpu_counter.h:38:25: note: in definition of macro ‘percpu_counter_init’ __percpu_counter_init(fbc, value, gfp, &__key); \ ^~~ ../kernel/user.c:203:33: error: ‘struct user_struct’ has no member named ‘epoll_watches’; did you mean ‘nr_watches’? percpu_counter_destroy(&new->epoll_watches); ^~~~~~~~~~~~~ nr_watches In file included from ../include/linux/sched/user.h:7:0, from ../kernel/user.c:17: ../kernel/user.c: In function ‘uid_cache_init’: ../kernel/user.c:225:37: error: ‘struct user_struct’ has no member named ‘epoll_watches’; did you mean ‘nr_watches’? if (percpu_counter_init(&root_user.epoll_watches, 0, GFP_KERNEL)) ^ ../include/linux/percpu_counter.h:38:25: note: in definition of macro ‘percpu_counter_init’ __percpu_counter_init(fbc, value, gfp, &__key); \ ^~~ -- ~Randy
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