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| author | Alexey Gladkov <legion@kernel.org> | 2024-01-15 16:46:42 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-02-23 00:38:52 +0100 |
| commit | 9220066ea807e3efce21476bffcac16743e9db22 (patch) | |
| tree | 03b0331dad1db446d68ce32e15fb376411955999 /ipc | |
| parent | sysctl: allow change system v ipc sysctls inside ipc namespace (diff) | |
| download | linux-9220066ea807e3efce21476bffcac16743e9db22.tar.xz linux-9220066ea807e3efce21476bffcac16743e9db22.zip | |
docs: add information about ipc sysctls limitations
After 25b21cb2f6d6 ("[PATCH] IPC namespace core") and 4e9823111bdc
("[PATCH] IPC namespace - shm") the shared memory page count stopped being
global and started counting per ipc namespace. The documentation and
shmget(2) still says that shmall is a global option.
shmget(2):
SHMALL System-wide limit on the total amount of shared memory, measured in
units of the system page size. On Linux, this limit can be read and
modified via /proc/sys/kernel/shmall.
I think the changes made in 2006 should be documented.
Link: https://lkml.kernel.org/r/09e99911071766958af488beb4e8a728a4f12135.1705333426.git.legion@kernel.org
Signed-off-by: Alexey Gladkov <legion@kernel.org>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Link: https://lkml.kernel.org/r/ede20ddf7be48b93e8084c3be2e920841ee1a641.1663756794.git.legion@kernel.org
Cc: Christian Brauner <brauner@kernel.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Joel Granados <joel.granados@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'ipc')
0 files changed, 0 insertions, 0 deletions