kernel/linux.git/fs/ntfs3/bitmap.c, branch v7.0.10

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

fs/ntfs3: improve readahead for bitmap initialization and large directory scans

2025-12-19T18:04:01+00:00

Previously sequential reads operations relied solely on single-page reads, causing the block layer to perform many synchronous I/O requests, especially for large volumes or large directories. This patch introduces explicit readahead via page_cache_sync_readahead() and file_ra_state to reduce I/O latency and improve sequential throughput. Signed-off-by: Konstantin Komarov

fs/ntfs3: Fix a resource leak bug in wnd_extend()

2025-09-10T09:01:40+00:00

Add put_bh() to decrease the refcount of 'bh' after the job is finished, preventing a resource leak. Fixes: 3f3b442b5ad2 ("fs/ntfs3: Add bitmap") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li Signed-off-by: Konstantin Komarov

fs/ntfs3: Accumulated refactoring changes

2024-11-01T08:19:53+00:00

Changes made to improve readability and debuggability. Signed-off-by: Konstantin Komarov

fs/ntfs3: Missed error return

2024-07-11T09:19:42+00:00

Fixes: 3f3b442b5ad2 ("fs/ntfs3: Add bitmap") Signed-off-by: Konstantin Komarov

fs/ntfs3: add prefix to bitmap_size() and use BITS_TO_U64()

2024-04-01T09:49:27+00:00

bitmap_size() is a pretty generic name and one may want to use it for a generic bitmap API function. At the same time, its logic is NTFS-specific, as it aligns to the sizeof(u64), not the sizeof(long) (although it uses ideologically right ALIGN() instead of division). Add the prefix 'ntfs3_' used for that FS (not just 'ntfs_' to not mix it with the legacy module) and use generic BITS_TO_U64() while at it. Suggested-by: Yury Norov # BITS_TO_U64() Reviewed-by: Przemek Kitszel Reviewed-by: Yury Norov Signed-off-by: Alexander Lobakin Signed-off-by: David S. Miller

fs/ntfs3: Use kvfree to free memory allocated by kvmalloc

2024-01-16T08:31:56+00:00

Signed-off-by: Konstantin Komarov

fs/ntfs3: Allow repeated call to ntfs3_put_sbi

2023-09-28T12:03:59+00:00

Signed-off-by: Konstantin Komarov

fs/ntfs3: Use kvmalloc instead of kmalloc(... __GFP_NOWARN)

2023-09-28T12:03:56+00:00

Signed-off-by: Konstantin Komarov

fs/ntfs3: Code formatting

2023-07-02T20:21:27+00:00

clang-format-15 was used to format code according kernel's .clang-format. Signed-off-by: Konstantin Komarov