> -----Original Message----- > From: devel [mailto:driverdev-devel-bounces@xxxxxxxxxxxxxxxxxxxxxx] On Behalf > Of Dexuan Cui > Sent: Friday, September 26, 2014 12:52 PM > To: gregkh@xxxxxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; driverdev- > devel@xxxxxxxxxxxxxxxxxxxxxx; olaf@xxxxxxxxx; apw@xxxxxxxxxxxxx; > jasowang@xxxxxxxxxx > Cc: Haiyang Zhang > Subject: [PATCH v3] Tools: hv: vssdaemon: ignore the EBUSY on multiple > freezing the same partition > > If a partition appears mounted more than once in /proc/mounts, vss_do_freeze() > succeeds only for the first time and gets EBUSY (on freeze) or EINVAL (on > thaw) for the second time. The patch ignores these to make the backup feature > work. > > Also improved the error handling in case a freeze operation fails. > > Signed-off-by: Dexuan Cui <decui@xxxxxxxxxxxxx> > Reviewed-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx> > --- > > v2: Add "errno = 0;" before the ioctl() > (Unnecessary and removed now since we remove syslog() in vss_do_freeze() in > v3) > > v3: Remove the unsafe syslog() in vss_do_freeze(): that could write the disk. > Thaw the filesystems in case the freezing operation fails. > In main(), add syslog() when we check the return value of vss_operate(). > > tools/hv/hv_vss_daemon.c | 48 Hi Greg, Ping. Thanks, -- Dexuan _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
