On Mon, Aug 29, 2022 at 02:46:38PM +0200, vbendel@xxxxxxxxxx wrote: > From: Vratislav Bendel <vbendel@xxxxxxxxxx> > > Commit 8c7829b04c52 "mm: fix false-positive OVERCOMMIT_GUESS failures" > changed the behavior of the default OVERCOMMIT_GUESS setting. > Reflect the change also in the Documentation, namely files: > Documentation/admin-guide/sysctl/vm.rst > Documentation/mm/overcommit-accounting.rst > > Reported-by: Jozef Bacik <jobacik@xxxxxxxxxx> > Signed-off-by: Vratislav Bendel <vbendel@xxxxxxxxxx> Acked-by: Mike Rapoport <rppt@xxxxxxxxxxxxx> > --- > Documentation/admin-guide/sysctl/vm.rst | 4 ++-- > Documentation/mm/overcommit-accounting.rst | 3 +-- > 2 files changed, 3 insertions(+), 4 deletions(-) > > diff --git a/Documentation/admin-guide/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst > index 9b833e439f09..351443427360 100644 > --- a/Documentation/admin-guide/sysctl/vm.rst > +++ b/Documentation/admin-guide/sysctl/vm.rst > @@ -742,8 +742,8 @@ overcommit_memory > > This value contains a flag that enables memory overcommitment. > > -When this flag is 0, the kernel attempts to estimate the amount > -of free memory left when userspace requests more memory. > +When this flag is 0, the kernel compares the userspace memory request > +size against total memory plus swap and rejects obvious overcommits. > > When this flag is 1, the kernel pretends there is always enough > memory until it actually runs out. > diff --git a/Documentation/mm/overcommit-accounting.rst b/Documentation/mm/overcommit-accounting.rst > index a4895d6fc1c2..e2263477f6d5 100644 > --- a/Documentation/mm/overcommit-accounting.rst > +++ b/Documentation/mm/overcommit-accounting.rst > @@ -8,8 +8,7 @@ The Linux kernel supports the following overcommit handling modes > Heuristic overcommit handling. Obvious overcommits of address > space are refused. Used for a typical system. It ensures a > seriously wild allocation fails while allowing overcommit to > - reduce swap usage. root is allowed to allocate slightly more > - memory in this mode. This is the default. > + reduce swap usage. This is the default. > > 1 > Always overcommit. Appropriate for some scientific > -- > 2.26.3 > -- Sincerely yours, Mike.
