Re: [RFC PATCH for 4.18] rseq: use __u64 for rseq_cs fields, valid ...
Linus Torvalds writes: (Summary) Not that there are any guarantees that the same won't happen for a plain 32-bit value either. happen for a plain 32-bit value either. Will compilers generate that kind...
View ArticleRe: [PATCH v5 0/6] fs/dcache: Track & limit # of negative dentries
Linus Torvalds writes: (Summary) Even if we did a perfect job at shrinking them and took no time at all doing so, the fact that you can generate an effecitvely infinite amount of negative dentries and...
View ArticleRe: [PATCH 2/2] drivers: core: Remove glue dirs from sysfs earlier
Linus Torvalds writes: (Summary) wrote:[...] smaller/simpler. That would definitely make me happier. That would definitely make me happier. Right now we already remove the actual device node sysfs...
View ArticleRe: [RFC PATCH for 4.18] rseq: use __u64 for rseq_cs fields, valid ...
Linus Torvalds writes: (Summary) It works for 64-bit objects too, and it will be atomic in the 32-bit sub-parts on a 32-bit architecture. Again: there is no point in trying to be atomic in the full 64...
View ArticleRe: [PATCH 2/2] drivers: core: Remove glue dirs from sysfs earlier
Linus Torvalds writes: (Summary) We happen to know that we hold the lock that creates all the entries in the glue directory (and we don't allow users to move or create stuff, afaik, even if we alloc...
View ArticleRe: [RFC PATCH for 4.18] rseq: use __u64 for rseq_cs fields, valid ...
Linus Torvalds writes: (Summary) On Mon, Jul 2, 2018 at 7:30 PM Mathieu Desnoyers<mathieu.desnoyers@efficios.com> wrote:[...] 32-bit sub-parts. All architectures that matter do. All architectures...
View ArticleRe: Linux 3.18.111
Linus Torvalds writes: (Summary) Then the inode is passed down all the way, and you don't have people try to get it from the (not yet initialized) dentry. dentry. But there might be other parts missing...
View ArticleRe: [GIT] Networking
Linus Torvalds writes: On Tue, Jul 3, 2018 at 6:52 AM Ursula Braun <ubraun@linux.ibm.com> wrote: [...] Just these 2 lines are missing: I should have realized that. I actually looked at it and...
View ArticleRe: [RFC PATCH for 4.18] rseq: use __u64 for rseq_cs fields, valid ...
Linus Torvalds writes: (Summary) They'd arguably be nice to have - but only for an insane case that makes absolutely no sense (a different thread trying to change the value). The kernel could read the...
View ArticleRe: [RFC PATCH for 4.18] rseq: use __u64 for rseq_cs fields, valid ...
Linus Torvalds writes: (Summary) wrote: [...] userspace load/stores to be single instructions. Actually, I think we should try very hard to limit even that to _just_ the rseq pointer itself. the rseq...
View ArticleRe: [lkp-robot] [x86/entry/64/compat] 8bb2610bc4: kernel_selftests ...
Linus Torvalds writes: (Summary) wrote: [...] caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): So that commit is expected to fix things, but it also *enabled* the...
View ArticleRe: [lkp-robot] [x86/entry/64/compat] 8bb2610bc4: kernel_selftests ...
Linus Torvalds writes: (Summary) I looked at the patch and it looked "obviously correct", but only tested my current tree (which had the above fix), not that actual tree. tree.[...] I blame git apply...
View ArticleRe: [PATCH] uts: Don't randomize "struct uts_namespace".
Linus Torvalds writes: (Summary) On Fri, Jul 6, 2018 at 3:07 AM Tetsuo Handa<penguin-kernel@i-love.sakura.ne.jp> This is not a "user program" using system calls etc, this is something that delves...
View ArticleRe: [RFC PATCH for 4.18 3/5] rseq: uapi: declare rseq_cs field as ...
Linus Torvalds writes: (Summary) On Fri, Jul 6, 2018 at 12:23 PM Mathieu Desnoyers<mathieu.desnoyers@efficios.com> Thoughts ? Please just use "get_user()". Please just use "get_user()". In fact,...
View ArticleRe: [RFC PATCH for 4.18 3/5] rseq: uapi: declare rseq_cs field as ...
Linus Torvalds writes: (Summary) wrote:[...] for get_user()/put_user() to ensure consistency ? Probably. Probably. *If* this actually turns out to be somethinig that shows up on profiles, it's almost...
View ArticleRe: [GIT PULL] SCSI fixes for 4.18-rc3
Linus Torvalds writes: (Summary) Is this where the IB people got their insane model from, using read/write as ioclt replacements? read/write as ioclt replacements? We have that ib_safe_file_access()...
View ArticleRe: [GIT PULL] SCSI fixes for 4.18-rc3
Linus Torvalds writes: (Summary) I'd rather add a deprecation warning to the whole "read/write to /dev/sg" itself, and then do what we did for ib_safe_file_access(), which was to just have the...
View ArticleRe: [GIT PULL] SCSI fixes for 4.18-rc3
Linus Torvalds writes: (Summary) On Fri, Jul 6, 2018 at 7:39 PM Linus Torvalds<torvalds@linux-foundation.org> wrote:[...] to /dev/sg" itself In the meantime, I've pulled this, but do wonder why...
View ArticleRe: [GIT PULL] SCSI fixes for 4.18-rc3
Linus Torvalds writes: (Summary) I'm not part of it even as the primary user, so.. as the primary user, so.. Anyway, cdrom devices are definitely *not* a reason for using /dev/sg*, exactly because no...
View ArticleRe: Crypto Fixes for 4.18
Linus Torvalds writes: (Summary) On Sun, Jul 8, 2018 at 9:20 AM Herbert Xu <herbert@gondor.apana.org.au> wrote: [...] - Add missing RETs in x86 aegis/morus. Side note - I queried earlier during...
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