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authorCosmin Paraschiv <csmnprschv@gmail.com>2013-04-30 09:23:09 +0930
committerRusty Russell <rusty@rustcorp.com.au>2013-04-30 09:24:30 +0930
commitc2ecd51531c881c8d47d77ea30395f7f03d42da3 (patch)
treeec8e3ed24b1837abd31c777d55f0ddc0700abd0e /drivers/lguest/lguest_user.c
parent55257d72bd1c51f25106350f4983ec19f62ed1fa (diff)
downloadlinux-c2ecd51531c881c8d47d77ea30395f7f03d42da3.tar.bz2
lguest: improve code readability in lg_cpu_start.
Make the container_of call friendlier and fix some comment slip-ups. Signed-off-by: Cosmin Paraschiv <csmnprschv@gmail.com> Cc: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/lguest/lguest_user.c')
-rw-r--r--drivers/lguest/lguest_user.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c
index ff4a0bc9904d..4263f4cc8c55 100644
--- a/drivers/lguest/lguest_user.c
+++ b/drivers/lguest/lguest_user.c
@@ -250,13 +250,13 @@ static ssize_t read(struct file *file, char __user *user, size_t size,loff_t*o)
*/
static int lg_cpu_start(struct lg_cpu *cpu, unsigned id, unsigned long start_ip)
{
- /* We have a limited number the number of CPUs in the lguest struct. */
+ /* We have a limited number of CPUs in the lguest struct. */
if (id >= ARRAY_SIZE(cpu->lg->cpus))
return -EINVAL;
/* Set up this CPU's id, and pointer back to the lguest struct. */
cpu->id = id;
- cpu->lg = container_of((cpu - id), struct lguest, cpus[0]);
+ cpu->lg = container_of(cpu, struct lguest, cpus[id]);
cpu->lg->nr_cpus++;
/* Each CPU has a timer it can set. */
@@ -270,7 +270,7 @@ static int lg_cpu_start(struct lg_cpu *cpu, unsigned id, unsigned long start_ip)
if (!cpu->regs_page)
return -ENOMEM;
- /* We actually put the registers at the bottom of the page. */
+ /* We actually put the registers at the end of the page. */
cpu->regs = (void *)cpu->regs_page + PAGE_SIZE - sizeof(*cpu->regs);
/*