feat(rsext4): fine-grained locking for SMP scalability - #1057

Merged

ZR233 merged 21 commits into

rcore-os:devfrom

seek-hope:feat/ext4-smp-lock

Jun 5, 2026

Commits on Jun 5, 2026

feat(rsext4): add internal spin::Mutex to caches, use blocking mutex for VFS

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feat(rsext4): add internal spin::Mutex to BitmapCache

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fix(rsext4): fix deadlock and TOCTOU race in SMP cache locking

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fix(rsext4): drop spinlock during I/O in cache get_or_load, fix is_metadata

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fix(axfs-ng): revert VFS lock to SpinNoIrq to avoid IRQ-context panic

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fix(rsext4): address review — clone mutation, block_size, modify error handling

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style(rsext4): cargo fmt
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docs(starry): cherry-pick self-compilation documentation from feat/starry-self-compilation-v2
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fix(rsext4): use modify_new in create_lost_found_directory to persist data

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test(rsext4): restore deleted test_invalidate and create_new_respects_lru_limit

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fix(rsext4): LRU eviction race — validate generation before removing victim

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fix(rsext4): propagate or log errors from datablock_cache.modify() callers

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fix(rsext4): log error from touch_inode_ctime_for_link_change

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fix(rsext4): defer dirty victim writeback until after generation check

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test(rsext4): add stale-victim gen-mismatch regression test for DataBlockCache
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style(rsext4): cargo fmt — inline single-expression closures in test
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refactor(rsext4): replace external spin::Mutex with ax_kspin::SpinNoPreempt

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style(rsext4): fix stale comment and replace static mut with AtomicBool

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style: cargo fmt

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Merge branch 'dev' into feat/ext4-smp-lock
ZR233
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chore(rsext4): update lockfile after dev merge
ZR233
committed

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feat(rsext4): fine-grained locking for SMP scalability - #1057

feat(rsext4): fine-grained locking for SMP scalability#1057
ZR233 merged 21 commits into
rcore-os:devfrom
seek-hope:feat/ext4-smp-lock

Commits on Jun 5, 2026

feat(rsext4): add internal spin::Mutex to caches, use blocking mutex for VFS

feat(rsext4): add internal spin::Mutex to BitmapCache

fix(rsext4): fix deadlock and TOCTOU race in SMP cache locking

fix(rsext4): drop spinlock during I/O in cache get_or_load, fix is_metadata

fix(axfs-ng): revert VFS lock to SpinNoIrq to avoid IRQ-context panic

fix(rsext4): address review — clone mutation, block_size, modify error handling

style(rsext4): cargo fmt

docs(starry): cherry-pick self-compilation documentation from feat/starry-self-compilation-v2

fix(rsext4): use modify_new in create_lost_found_directory to persist data

test(rsext4): restore deleted test_invalidate and create_new_respects_lru_limit

fix(rsext4): LRU eviction race — validate generation before removing victim

fix(rsext4): propagate or log errors from datablock_cache.modify() callers

fix(rsext4): log error from touch_inode_ctime_for_link_change

fix(rsext4): defer dirty victim writeback until after generation check

test(rsext4): add stale-victim gen-mismatch regression test for DataBlockCache

style(rsext4): cargo fmt — inline single-expression closures in test

refactor(rsext4): replace external spin::Mutex with ax_kspin::SpinNoPreempt

style(rsext4): fix stale comment and replace static mut with AtomicBool

style: cargo fmt

Merge branch 'dev' into feat/ext4-smp-lock

chore(rsext4): update lockfile after dev merge