Il 25/08/2013 17:04, Alexander Graf ha scritto:
On 24.08.2013, at 21:14, Yann Droneaud wrote:
KVM uses anon_inode_get() to allocate file descriptors as part
of some of its ioctls. But those ioctls are lacking a flag argument
allowing userspace to choose options for the newly opened file
Le 26.08.2013 09:39, Paolo Bonzini a écrit :
Il 25/08/2013 17:04, Alexander Graf ha scritto:
On 24.08.2013, at 21:14, Yann Droneaud wrote:
This patch set O_CLOEXEC flag on all file descriptors created
with anon_inode_getfd() to not leak file descriptors across exec().
Signed-off-by: Yann
Il 26/08/2013 10:23, Yann Droneaud ha scritto:
Sounds a lot like InfiniBand subsystem behavor: IB file descriptors
are of no use accross exec() since memory mappings tied to those fds
won't be available in the new process:
https://lkml.org/lkml/2013/7/8/380
Il 25/08/2013 17:04, Alexander Graf ha scritto:
On 24.08.2013, at 21:14, Yann Droneaud wrote:
KVM uses anon_inode_get() to allocate file descriptors as part
of some of its ioctls. But those ioctls are lacking a flag argument
allowing userspace to choose options for the newly opened file
Le 26.08.2013 09:39, Paolo Bonzini a écrit :
Il 25/08/2013 17:04, Alexander Graf ha scritto:
On 24.08.2013, at 21:14, Yann Droneaud wrote:
This patch set O_CLOEXEC flag on all file descriptors created
with anon_inode_getfd() to not leak file descriptors across exec().
Signed-off-by: Yann
Il 26/08/2013 10:23, Yann Droneaud ha scritto:
Sounds a lot like InfiniBand subsystem behavor: IB file descriptors
are of no use accross exec() since memory mappings tied to those fds
won't be available in the new process:
https://lkml.org/lkml/2013/7/8/380
On 24.08.2013, at 21:14, Yann Droneaud wrote:
KVM uses anon_inode_get() to allocate file descriptors as part
of some of its ioctls. But those ioctls are lacking a flag argument
allowing userspace to choose options for the newly opened file descriptor.
In such case it's advised to use
On 24.08.2013, at 21:14, Yann Droneaud wrote:
KVM uses anon_inode_get() to allocate file descriptors as part
of some of its ioctls. But those ioctls are lacking a flag argument
allowing userspace to choose options for the newly opened file descriptor.
In such case it's advised to use
