On Thu, Feb 15, 2018 at 06:39:57PM +, Al Viro wrote:
> Not true. We also assume that once fs_struct has been locked, the number of
> tasks with reference to it won't change. See fs/exec.c:check_unsafe_exec(),
> for example.
PS: any discussion of VFS and filesystems stuff belongs on
On Thu, Feb 15, 2018 at 06:39:57PM +, Al Viro wrote:
> Not true. We also assume that once fs_struct has been locked, the number of
> tasks with reference to it won't change. See fs/exec.c:check_unsafe_exec(),
> for example.
PS: any discussion of VFS and filesystems stuff belongs on
On Thu, Feb 15, 2018 at 02:46:19PM +0100, Enrico Weigelt wrote:
> On 15.02.2018 10:14, Richard Weinberger wrote:
> > On Wed, Feb 14, 2018 at 10:13 PM, Enrico Weigelt wrote:
> > > Hi folks,
> > >
> > >
> > > in fork.c, a spinlock is held for fs_struct refcounting, while other
> >
On Thu, Feb 15, 2018 at 02:46:19PM +0100, Enrico Weigelt wrote:
> On 15.02.2018 10:14, Richard Weinberger wrote:
> > On Wed, Feb 14, 2018 at 10:13 PM, Enrico Weigelt wrote:
> > > Hi folks,
> > >
> > >
> > > in fork.c, a spinlock is held for fs_struct refcounting, while other
> > > places - eg.
On 15.02.2018 10:14, Richard Weinberger wrote:
On Wed, Feb 14, 2018 at 10:13 PM, Enrico Weigelt wrote:
Hi folks,
in fork.c, a spinlock is held for fs_struct refcounting, while other
places - eg. switch_task_namespaces uses atomic_dec_and_test() on
the nsproxy.
What's the
On 15.02.2018 10:14, Richard Weinberger wrote:
On Wed, Feb 14, 2018 at 10:13 PM, Enrico Weigelt wrote:
Hi folks,
in fork.c, a spinlock is held for fs_struct refcounting, while other
places - eg. switch_task_namespaces uses atomic_dec_and_test() on
the nsproxy.
What's the exact difference
On Wed, Feb 14, 2018 at 10:13 PM, Enrico Weigelt wrote:
> Hi folks,
>
>
> in fork.c, a spinlock is held for fs_struct refcounting, while other
> places - eg. switch_task_namespaces uses atomic_dec_and_test() on
> the nsproxy.
>
> What's the exact difference here ? Could the atomic
On Wed, Feb 14, 2018 at 10:13 PM, Enrico Weigelt wrote:
> Hi folks,
>
>
> in fork.c, a spinlock is held for fs_struct refcounting, while other
> places - eg. switch_task_namespaces uses atomic_dec_and_test() on
> the nsproxy.
>
> What's the exact difference here ? Could the atomic counting also
Hi folks,
in fork.c, a spinlock is held for fs_struct refcounting, while other
places - eg. switch_task_namespaces uses atomic_dec_and_test() on
the nsproxy.
What's the exact difference here ? Could the atomic counting also used
for fs_struct ?
--mtx
--
Enrico Weigelt, metux IT consult
Free
Hi folks,
in fork.c, a spinlock is held for fs_struct refcounting, while other
places - eg. switch_task_namespaces uses atomic_dec_and_test() on
the nsproxy.
What's the exact difference here ? Could the atomic counting also used
for fs_struct ?
--mtx
--
Enrico Weigelt, metux IT consult
Free
10 matches
Mail list logo