Hi Yang, On Thu, Dec 21, 2023 at 10:07:09PM -0500, Yang Xu wrote: > After 4.14 kernel patch [1], it addes SWP_DEVICE_NUM macro and value is 2. > After 5.14 kernel patch[2], it incrase this SWP_DEVICE_NUM macro to 4. > So we should add this info in here to calculate MAX_SWAPFILES. > > [1]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/include/linux/swap.h?id=5042db43cc > [2]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/include/linux/swap.h?id=b756a3b5e > Signed-off-by: Yang Xu <xuyang2018.jy@xxxxxxxxxxx> > --- > man2/swapon.2 | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/man2/swapon.2 b/man2/swapon.2 > index b2651fc39..21d6416eb 100644 > --- a/man2/swapon.2 > +++ b/man2/swapon.2 > @@ -177,7 +177,8 @@ Since Linux 2.6.32, the limit is further decreased by 1 > if the kernel is built with the > .B CONFIG_MEMORY_FAILURE > option. > -Since Linux 5.14, the limit is further decreased by 4 > +Since Linux 4.14, the limit is decreased by 2, > +since Linux 5.14, the limit is decreased by 4 Why remove "further"? Please add in parentheses the total value after the decrease (thus: 123) to clarify what is the limit after so many decreases. Have a lovely day, Alex > if the kernel is built with the > .B CONFIG_DEVICE_PRIVATE > option. > -- > 2.27.0 > > -- <https://www.alejandro-colomar.es/> Looking for a remote C programming job at the moment.
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