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o Perform a BLKFLSBUF ioctl whenever a block device is closed.

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Patrick, can you see if this fixes your cluster syncing problem please ?
If so I'll make it so it only syncs if you have actually written to the
device.
This commit is contained in:
Joe Thornber 2002-04-08 18:59:50 +00:00
parent 2fab033e9b
commit f31c47ade8
1 changed files with 8 additions and 0 deletions
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8
lib/device/dev-io.c
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@ -96,6 +96,12 @@ int dev_open(struct device *dev, int flags)
return 1;
}
static void _flush(int fd)
{
if (ioctl(fd, BLKFLSBUF, 0))
log_error("couldn't flush device.");
}
int dev_close(struct device *dev)
{
if (dev->fd < 0) {
@ -104,6 +110,8 @@ int dev_close(struct device *dev)
return 0;
}
_flush(dev->fd);
if (close(dev->fd))
log_sys_error("close", dev_name(dev));