diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2017-10-30 01:55:58 +0100 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2017-10-30 01:55:58 +0100 |
| commit | e436a529cd0ccb3e700269e5e5df5eabfaa28d64 (patch) | |
| tree | 6f62687a51f9cd5a47bb05854e008fc86a69e0f3 /sys/man | |
| parent | 7e619e59e4fc445f9d42e3eb919dc29c30769913 (diff) | |
swap(3): document permissions and encryption behaviour, reference to memory(8)
Diffstat (limited to 'sys/man')
| -rw-r--r-- | sys/man/3/swap | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sys/man/3/swap b/sys/man/3/swap index 09ffbdb53..905516223 100644 --- a/sys/man/3/swap +++ b/sys/man/3/swap @@ -1,6 +1,6 @@ .TH SWAP 3 .SH NAME -swap \- memory usage statistics and pagefile control +swap \- memory usage statistics and swap file control .SH SYNOPSIS .nf .B bind -a #ΒΆ /dev @@ -20,11 +20,13 @@ device holds a text block giving memory usage statistics: \fIn\fP/\fIm\fP swap \fIa\fP/\fIn\fP/\fIm\fP kernel malloc \fIa\fP/\fIn\fP/\fIm\fP kernel draw +\fIa\fP/\fIn\fP/\fIm\fP kernel secret .EE .PP These are total memory (bytes), system page size (bytes), kernel memory (pages), user memory (pages), swap space (pages), -kernel malloced data (bytes), and kernel graphics data (bytes). +kernel malloced data (bytes), kernel graphics data (bytes) +and kernel secret data (bytes). The expression .IR n / m indicates @@ -40,7 +42,11 @@ These numbers are not blank padded. To turn on swapping, write to .B swap the textual file descriptor number of a file or device on which to swap. +.PP +Only the hostowner is allowed to enable swapping. The pages written to +the swap file are transparently encrypted by the kernel using a random key. .SH SEE ALSO +.IR memory (8), .IR swap (8). .SH SOURCE .B /sys/src/9/port/devswap.c |