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Stefan Weinhuber 1c1e093cbf [S390] dasd: fix race between tasklet and dasd_sleep_on ... The various dasd_sleep_on functions use a global wait queue when waiting for a cqr. The wait condition checks the status and devlist fields of the cqr to determine if it is safe to continue. This evaluation may return true, although the tasklet has not finished processing of the cqr and the callback function has not been called yet. When the callback is finally called, the data in the cqr may already be invalid. The sleep_on wait condition needs a safe way to determine if the tasklet has finished processing. Use the callback_data field of the cqr to store a token, which is set by the callback function itself. Cc: <stable@kernel.org> Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		15 years ago
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block	[S390] dasd: fix race between tasklet and dasd_sleep_on	15 years ago
char	[S390] zcore: Fix reipl device detection	15 years ago
cio	[S390] cio: use exception-save stsch	15 years ago
crypto	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
kvm	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
net	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
scsi	[SCSI] zfcp: Fix tracing of requests with error status	15 years ago
Makefile	[S390] split/move machine check handler code	16 years ago