Peter Oberparleiter 1ec5ea9e25 s390/sclp: Prevent release of buffer in I/O ... [ Upstream commit bf365071ea ] When a task waiting for completion of a Store Data operation is interrupted, an attempt is made to halt this operation. If this attempt fails due to a hardware or firmware problem, there is a chance that the SCLP facility might store data into buffers referenced by the original operation at a later time. Handle this situation by not releasing the referenced data buffers if the halt attempt fails. For current use cases, this might result in a leak of few pages of memory in case of a rare hardware/firmware malfunction. Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-08-19 05:33:48 +02:00
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con3215.c
con3270.c
ctrlchar.c
ctrlchar.h
defkeymap.c
defkeymap.map
diag_ftp.c
diag_ftp.h
fs3270.c
hmcdrv_cache.c
hmcdrv_cache.h
hmcdrv_dev.c
hmcdrv_dev.h
hmcdrv_ftp.c
hmcdrv_ftp.h
hmcdrv_mod.c
Kconfig
keyboard.c
keyboard.h
Makefile
monreader.c
monwriter.c
raw3270.c
raw3270.h
sclp_cmd.c
sclp_con.c
sclp_config.c
sclp_cpi_sys.c
sclp_cpi_sys.h
sclp_ctl.c
sclp_diag.h
sclp_early_core.c
sclp_early.c
sclp_ftp.c
sclp_ftp.h
sclp_ocf.c
sclp_pci.c
sclp_quiesce.c
sclp_rw.c
sclp_rw.h
sclp_sd.c
sclp_sdias.c
sclp_sdias.h
sclp_tty.c
sclp_tty.h
sclp_vt220.c
sclp.c
sclp.h
tape_34xx.c
tape_3590.c
tape_3590.h
tape_char.c
tape_class.c
tape_class.h
tape_core.c
tape_proc.c
tape_std.c
tape_std.h
tape.h
tty3270.c
tty3270.h
vmcp.c
vmlogrdr.c
vmur.c
vmur.h
zcore.c