Re: [PATCH] xen-mapcache: avoid a race on memory map while using MAP_FIXED

2021-04-20 Thread Anthony PERARD via
On Tue, Apr 20, 2021 at 10:51:47AM +0100, Igor Druzhinin wrote: > On 20/04/2021 04:39, no-re...@patchew.org wrote: > > === OUTPUT BEGIN === > > ERROR: Author email address is mangled by the mailing list > > #2: > > Author: Igor Druzhinin via > > > > total: 1 errors, 0 warnings, 21 lines checked >

Re: [PATCH] xen-mapcache: avoid a race on memory map while using MAP_FIXED

2021-04-20 Thread Roger Pau Monné via
On Tue, Apr 20, 2021 at 10:45:03AM +0100, Igor Druzhinin wrote: > On 20/04/2021 09:53, Roger Pau Monné wrote: > > On Tue, Apr 20, 2021 at 04:35:02AM +0100, Igor Druzhinin wrote: > > > When we're replacing the existing mapping there is possibility of a race > > > on memory map with other threads doi

Re: [PATCH] xen-mapcache: avoid a race on memory map while using MAP_FIXED

2021-04-20 Thread Igor Druzhinin via
On 20/04/2021 04:39, no-re...@patchew.org wrote: Patchew URL: https://patchew.org/QEMU/1618889702-13104-1-git-send-email-igor.druzhi...@citrix.com/ Hi, This series seems to have some coding style problems. See output below for more information: Type: series Message-id: 1618889702-13104-1-gi

Re: [PATCH] xen-mapcache: avoid a race on memory map while using MAP_FIXED

2021-04-20 Thread Igor Druzhinin via
On 20/04/2021 09:53, Roger Pau Monné wrote: On Tue, Apr 20, 2021 at 04:35:02AM +0100, Igor Druzhinin wrote: When we're replacing the existing mapping there is possibility of a race on memory map with other threads doing mmap operations - the address being unmapped/re-mapped could be occupied by

Re: [PATCH] xen-mapcache: avoid a race on memory map while using MAP_FIXED

2021-04-20 Thread Roger Pau Monné via
On Tue, Apr 20, 2021 at 04:35:02AM +0100, Igor Druzhinin wrote: > When we're replacing the existing mapping there is possibility of a race > on memory map with other threads doing mmap operations - the address being > unmapped/re-mapped could be occupied by another thread in between. > > Linux mma

Re: [PATCH] xen-mapcache: avoid a race on memory map while using MAP_FIXED

2021-04-20 Thread Paul Durrant
On 20/04/2021 04:35, Igor Druzhinin wrote: When we're replacing the existing mapping there is possibility of a race on memory map with other threads doing mmap operations - the address being unmapped/re-mapped could be occupied by another thread in between. Linux mmap man page recommends keeping

Re: [PATCH] xen-mapcache: avoid a race on memory map while using MAP_FIXED

2021-04-19 Thread no-reply
Patchew URL: https://patchew.org/QEMU/1618889702-13104-1-git-send-email-igor.druzhi...@citrix.com/ Hi, This series seems to have some coding style problems. See output below for more information: Type: series Message-id: 1618889702-13104-1-git-send-email-igor.druzhi...@citrix.com Subject: [PA