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Similar flags will be added at the blobstore level in a future patch. This allows backwards compatibility - i.e. allow older blobstore applications to open blobstores created by newer blobstore applications with new features. Any blob's using a new feature should have an associated flag set in one of three new flag masks: - invalid: if a bit is set in this mask that the application is not aware of, do not allow the blob to be opened - data_ro: if a bit is set in this mask that the application is not aware of, allow the blob to be opened, but do not allow write I/O nor any operation that changes metadata - md_ro: if a bit is set in this mask that the application is not aware of, allow the blob to be opened for performing any kind of I/O, but do not allow any operation that changes metadata While here, bump SPDK_BS_VERSION to 3. We intend this to be the last change made to SPDK_BS_VERSION - future versioning will be done via blobstore or per-blob feature flags instead. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: If059e38bfffbeec25c849a7629a81193b12302c4 Reviewed-on: https://review.gerrithub.io/388703 Reviewed-by: Ben Walker <benjamin.walker@intel.com> Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> |
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| .. | ||
| bdev | ||
| blobstore.c | ||
| blobstore.h | ||
| Makefile | ||
| request.c | ||
| request.h | ||