[PATCH v2 2/2] swapon.2: Adjust decreased value under CONFIG_PTE_MARKER

Yang Xu
2023-12-05T06:30:30Z

Since linux 5.19[1], MAX_SWAPFILES will be futher decreased
1 if kernel built with CONFIG_PTE_MARKER.

[1]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/include/linux/swap.h?id=679d10331

Signed-off-by: Yang Xu <xuyang2018.jy@fujitsu.com>
---
man2/swapon.2 | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/man2/swapon.2 b/man2/swapon.2
index 2bc477d18..13282ff96 100644
--- a/man2/swapon.2
+++ b/man2/swapon.2
@@ -181,6 +181,10 @@ Since Linux 5.14, the limit is further decreased by 4
if the kernel is built with the
.B CONFIG_DEVICE_PRIVATE
option.
+Since Linux 5.19, the limit is further decreased by 1
+if the kernel is built with the
+.B CONFIG_PTE_MARKER
+option.
.P
Discard of swap pages was introduced in Linux 2.6.29,
then made conditional
--
2.27.0