ACPR/android_system_core
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2 commits

Author SHA1 Message Date
Greg Kaiser
10e3d620b4 dmuserd: Fix error checking 
We change read_all() and write_all() to return signed values, so
our negative error return values will be correctly caught.

Test: TreeHugger
Change-Id: I4d03d4475bccb40ae4b84a846966139b34ede2bd
 2020-11-19 16:15:48 -08:00
Palmer Dabbelt
c16e503faa dmuserd: Simple dm-user daemon 
This provides a block device via dm-user, with all accesses backed by
in-memory storage.  It's essentially the same as what I have in
selftests, with the kselftests stuff removed so it'll build in Android.

Test: mkfs.f2fs, dd, fsck.f2fs
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Change-Id: I68515d6e9001c2f6d199d394e67ebe528b382406
 2020-11-16 22:23:07 +00:00