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Sebastian Ott 181d95229b [S390] dasd: fix refcounting in dasd_change_state ... To set a dasd online dasd_change_state is called twice. The first cycle will schedule initial analysis of the device, set the rc to -EAGAIN and will not touch the device state any more. The initial analysis will in turn call dasd_change_state to increase the state to the final DASD_STATE_ONLINE. If the dasd_change_state on the second thread outruns the other one both finish with the state set to DASD_STATE_ONLINE and the device refcount will be decreased by 2. Fix this by leaving dasd_change_state on rc == -EAGAIN so that the refcount will always be decreased by 1. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		16 years ago
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Kconfig	…
Makefile	…
dasd.c	[S390] dasd: fix refcounting in dasd_change_state	16 years ago
dasd_3990_erp.c	…
dasd_alias.c	…
dasd_devmap.c	[S390] pm: dasd power management callbacks.	16 years ago
dasd_diag.c	…
dasd_diag.h	…
dasd_eckd.c	[S390] dasd_pm: fix stop flag handling	16 years ago
dasd_eckd.h	…
dasd_eer.c	…
dasd_erp.c	…
dasd_fba.c	[S390] pm: dasd power management callbacks.	16 years ago
dasd_fba.h	…
dasd_genhd.c	…
dasd_int.h	[S390] pm: dasd power management callbacks.	16 years ago
dasd_ioctl.c	…
dasd_proc.c	…
dcssblk.c	[S390] pm: dcssblk power management callbacks.	16 years ago
xpram.c	[S390] pm: xpram driver power management callbacks	16 years ago