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| author | Christoph Hellwig <hch@lst.de> | 2007-05-14 01:50:27 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-05-17 21:11:13 +1000 |
| commit | 9d561ed46ea33c223def2eb8e2b09ea108a4d70b (patch) | |
| tree | 02a4d1ada9fbaa0e8bef7aae98f2e22f820cd160 /arch | |
| parent | e38e3458804019c3fe9b17998e05fd1cd480806d (diff) | |
| download | kernel_samsung_espresso10-9d561ed46ea33c223def2eb8e2b09ea108a4d70b.zip kernel_samsung_espresso10-9d561ed46ea33c223def2eb8e2b09ea108a4d70b.tar.gz kernel_samsung_espresso10-9d561ed46ea33c223def2eb8e2b09ea108a4d70b.tar.bz2 | |
[POWERPC] viopath: Use completion
Use a completion instead of abusing a semaphore for hypervisor event
completion in viopath.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/platforms/iseries/viopath.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/powerpc/platforms/iseries/viopath.c b/arch/powerpc/platforms/iseries/viopath.c index 354b8dd..7f58e59 100644 --- a/arch/powerpc/platforms/iseries/viopath.c +++ b/arch/powerpc/platforms/iseries/viopath.c @@ -37,6 +37,7 @@ #include <linux/wait.h> #include <linux/seq_file.h> #include <linux/interrupt.h> +#include <linux/completion.h> #include <asm/system.h> #include <asm/uaccess.h> @@ -115,7 +116,7 @@ static int proc_viopath_show(struct seq_file *m, void *v) u16 vlanMap; dma_addr_t handle; HvLpEvent_Rc hvrc; - DECLARE_MUTEX_LOCKED(Semaphore); + DECLARE_COMPLETION(done); struct device_node *node; const char *sysid; @@ -132,13 +133,13 @@ static int proc_viopath_show(struct seq_file *m, void *v) HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck, viopath_sourceinst(viopath_hostLp), viopath_targetinst(viopath_hostLp), - (u64)(unsigned long)&Semaphore, VIOVERSION << 16, + (u64)(unsigned long)&done, VIOVERSION << 16, ((u64)handle) << 32, HW_PAGE_SIZE, 0, 0); if (hvrc != HvLpEvent_Rc_Good) printk(VIOPATH_KERN_WARN "hv error on op %d\n", (int)hvrc); - down(&Semaphore); + wait_for_completion(&done); vlanMap = HvLpConfig_getVirtualLanIndexMap(); @@ -353,7 +354,7 @@ static void handleConfig(struct HvLpEvent *event) return; } - up((struct semaphore *)event->xCorrelationToken); + complete((struct completion *)event->xCorrelationToken); } /* |