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zipl: Add --no-compress option to zipl command

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Add --no-compress option to explicitly omit compression for single-volume
DASD dumper. Used primarily for test purposes.

Since only the lowest byte of mvdump_force field (struct
stage2dump_parm_tail) has been used, split it in two byte fields and use
one for the new no_compress attribute.

Update zipl help and zipl man page with the new parameter info.

Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Mikhail Zaslonko
2023-05-31 09:33:38 +02:00
committed by Jan Höppner
parent c08794bdfb
commit c61783546b
9 changed files with 31 additions and 8 deletions
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zipl/include/install.h
+2 -2
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@@ -120,8 +120,8 @@ int install_tapeloader(const char* device, const char* image,
const char* parmline, const char* ramdisk,
address_t image_addr, address_t parm_addr,
address_t initrd_addr);
int install_dump(const char* device, struct job_target_data* target,
uint64_t mem);
int install_dump(const char *device, struct job_target_data *target,
uint64_t mem, bool no_compress);
int install_mvdump(char* const device[], struct job_target_data* target,
int device_count, uint64_t mem, uint8_t force);