From: Li Chen <[email protected]> This three-patch series tidies dm-pcache’s build glue and tightens the metadata scan.
Patch 1 allow dm-pcache to be linked into vmlinux and avoids clashing with the sunrpc cache_flush() by using obj-$(CONFIG_DM_PCACHE) and renaming the helper across the tree. Patch 2 drops a redundant recomputation of the metadata slot pointer while walking headers. Patch 3 zero-allocates a temporary buffer so callers never see stale metadata, relies on __free(kvfree) for cleanup, and only copies back once a valid record is found. Thanks for your review. Li Chen (3): dm-pcache: allow built-in build and rename flush helper dm-pcache: reuse meta_addr in pcache_meta_find_latest dm-pcache: avoid leaking invalid metadata in pcache_meta_find_latest() drivers/md/dm-pcache/Makefile | 2 +- drivers/md/dm-pcache/cache.c | 2 +- drivers/md/dm-pcache/cache.h | 2 +- drivers/md/dm-pcache/cache_req.c | 6 +++--- drivers/md/dm-pcache/pcache_internal.h | 15 ++++++++++----- 5 files changed, 16 insertions(+), 11 deletions(-) -- 2.51.0
