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Fix cgroups swap issue when it is not supported 

Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
This commit is contained in:
Michael Crosby 2014-02-25 19:45:57 -08:00
parent bfdf07ac98
commit 6016126c71
1 changed files with 4 additions and 2 deletions
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6
pkg/cgroups/cgroups.go
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@ -223,8 +223,10 @@ func (c *Cgroup) setupMemory(cgroupRoot string, pid int) (err error) {
return err
}
}
if c.MemorySwap != 0 {
if err := writeFile(dir, "memory.memsw.limit_in_bytes", strconv.FormatInt(c.MemorySwap, 10)); err != nil {
// By default, MemorySwap is set to twice the size of RAM.
// If you want to omit MemorySwap, set it to `-1'.
if c.MemorySwap != -1 {
if err := writeFile(dir, "memory.memsw.limit_in_bytes", strconv.FormatInt(c.Memory*2, 10)); err != nil {
return err
}
}