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CVS commit: [netbsd-8] src/sys/dev

Module Name:    src
Committed By:   martin
Date:           Fri Sep  1 09:59:11 UTC 2017

Modified Files:
        src/sys/dev [netbsd-8]: dksubr.c ld.c ldvar.h
        src/sys/dev/i2o [netbsd-8]: ld_iop.c
        src/sys/dev/ic [netbsd-8]: ld_cac.c ld_nvme.c
        src/sys/dev/pci [netbsd-8]: ld_virtio.c
        src/sys/dev/sdmmc [netbsd-8]: ld_sdmmc.c sdmmc_mem.c sdmmcvar.h

Log Message:
Pull up following revision(s) (requested by mlelstv in ticket #261):
        sys/dev/sdmmc/ld_sdmmc.c: revision 1.32
        sys/dev/sdmmc/ld_sdmmc.c: revision 1.33
        sys/dev/sdmmc/ld_sdmmc.c: revision 1.34
        sys/dev/sdmmc/sdmmc_mem.c: revision 1.62
        sys/dev/i2o/ld_iop.c: revision 1.39
        sys/dev/ld.c: revision 1.102
        sys/dev/ld.c: revision 1.103
        sys/dev/dksubr.c: revision 1.98
        sys/dev/dksubr.c: revision 1.99
        sys/dev/sdmmc/sdmmcvar.h: revision 1.29
        sys/dev/ic/ld_nvme.c: revision 1.17
        sys/dev/ldvar.h: revision 1.31
        sys/dev/ldvar.h: revision 1.32
        sys/dev/ic/ld_cac.c: revision 1.31
        sys/dev/pci/ld_virtio.c: revision 1.16
While ld(4) is MP safe, many backends are not.
Add a flag for backends that are MP safe. Take KERNEL_LOCK when calling
into a backend that doesn't have the flag set. Do the same for the
discard routine.
Fixes PR 52462.
Defer sdmmc discard operations to the sdmmc task queue. Fixes a panic
introduced by ld.c r1.102.
validate length for discard operation and split operation when byte length
doesn't fit into 'int'.
make the sc_discard interface for the ld backend asynchronous and
signal completion through new callback lddiscardend. Use a standard
struct buf to pass disk address and range instead of two off_t values.
make lddiscard synchronous again. This is a requirement of the current
ffs discard code.
Initialize error also in the case where len=0, which just succeeds.
while here, assert that the len is indeed non-negative. this is already
confirmed by sys_fdiscard, but let's be sure.
reported by: GCC, but with different compile flags

To generate a diff of this commit:
cvs rdiff -u -r1.97 -r1.97.2.1 src/sys/dev/dksubr.c
cvs rdiff -u -r1.101 -r1.101.2.1 src/sys/dev/ld.c
cvs rdiff -u -r1.30 -r1.30.2.1 src/sys/dev/ldvar.h
cvs rdiff -u -r1.37 -r1.37.6.1 src/sys/dev/i2o/ld_iop.c
cvs rdiff -u -r1.30 -r1.30.8.1 src/sys/dev/ic/ld_cac.c
cvs rdiff -u -r1.16 -r1.16.2.1 src/sys/dev/ic/ld_nvme.c
cvs rdiff -u -r1.15 -r1.15.6.1 src/sys/dev/pci/ld_virtio.c
cvs rdiff -u -r1.26.4.4 -r1.26.4.5 src/sys/dev/sdmmc/ld_sdmmc.c
cvs rdiff -u -r1.56.4.3 -r1.56.4.4 src/sys/dev/sdmmc/sdmmc_mem.c
cvs rdiff -u -r1.23.6.3 -r1.23.6.4 src/sys/dev/sdmmc/sdmmcvar.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

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