6.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: David Sterba dsterba@suse.com
[ Upstream commit 05a6ec865d091fe8244657df8063f74e704d1711 ]
The unsigned type is a recommended practice (CWE-190, CWE-194) for bit shifts to avoid problems with potential unwanted sign extensions. Although there are no such cases in btrfs codebase, follow the recommendation.
Reviewed-by: Boris Burkov boris@bur.io Signed-off-by: David Sterba dsterba@suse.com Stable-dep-of: 1f2889f5594a ("btrfs: fix qgroup reservation leak on failure to allocate ordered extent") Signed-off-by: Sasha Levin sashal@kernel.org --- fs/btrfs/backref.h | 4 ++-- fs/btrfs/direct-io.c | 4 ++-- fs/btrfs/extent_io.h | 2 +- fs/btrfs/inode.c | 12 ++++++------ fs/btrfs/ordered-data.c | 4 ++-- fs/btrfs/raid56.c | 5 ++--- fs/btrfs/tests/extent-io-tests.c | 6 +++--- fs/btrfs/zstd.c | 2 +- 8 files changed, 19 insertions(+), 20 deletions(-)
diff --git a/fs/btrfs/backref.h b/fs/btrfs/backref.h index 74e6140312747..953637115956b 100644 --- a/fs/btrfs/backref.h +++ b/fs/btrfs/backref.h @@ -423,8 +423,8 @@ struct btrfs_backref_node *btrfs_backref_alloc_node( struct btrfs_backref_edge *btrfs_backref_alloc_edge( struct btrfs_backref_cache *cache);
-#define LINK_LOWER (1 << 0) -#define LINK_UPPER (1 << 1) +#define LINK_LOWER (1U << 0) +#define LINK_UPPER (1U << 1)
void btrfs_backref_link_edge(struct btrfs_backref_edge *edge, struct btrfs_backref_node *lower, diff --git a/fs/btrfs/direct-io.c b/fs/btrfs/direct-io.c index a374ce7a1813b..7900cba56225d 100644 --- a/fs/btrfs/direct-io.c +++ b/fs/btrfs/direct-io.c @@ -151,8 +151,8 @@ static struct extent_map *btrfs_create_dio_extent(struct btrfs_inode *inode, }
ordered = btrfs_alloc_ordered_extent(inode, start, file_extent, - (1 << type) | - (1 << BTRFS_ORDERED_DIRECT)); + (1U << type) | + (1U << BTRFS_ORDERED_DIRECT)); if (IS_ERR(ordered)) { if (em) { free_extent_map(em); diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index f5b28b5c4908b..91d9cb5ff401b 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -79,7 +79,7 @@ enum { * single word in a bitmap may straddle two pages in the extent buffer. */ #define BIT_BYTE(nr) ((nr) / BITS_PER_BYTE) -#define BYTE_MASK ((1 << BITS_PER_BYTE) - 1) +#define BYTE_MASK ((1U << BITS_PER_BYTE) - 1) #define BITMAP_FIRST_BYTE_MASK(start) \ ((BYTE_MASK << ((start) & (BITS_PER_BYTE - 1))) & BYTE_MASK) #define BITMAP_LAST_BYTE_MASK(nbits) \ diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 8a3f44302788c..867b438652ef7 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1171,7 +1171,7 @@ static void submit_one_async_extent(struct async_chunk *async_chunk, free_extent_map(em);
ordered = btrfs_alloc_ordered_extent(inode, start, &file_extent, - 1 << BTRFS_ORDERED_COMPRESSED); + 1U << BTRFS_ORDERED_COMPRESSED); if (IS_ERR(ordered)) { btrfs_drop_extent_map_range(inode, start, end, false); ret = PTR_ERR(ordered); @@ -1418,7 +1418,7 @@ static noinline int cow_file_range(struct btrfs_inode *inode, free_extent_map(em);
ordered = btrfs_alloc_ordered_extent(inode, start, &file_extent, - 1 << BTRFS_ORDERED_REGULAR); + 1U << BTRFS_ORDERED_REGULAR); if (IS_ERR(ordered)) { unlock_extent(&inode->io_tree, start, start + cur_alloc_size - 1, &cached); @@ -1999,8 +1999,8 @@ static int nocow_one_range(struct btrfs_inode *inode, struct folio *locked_folio
ordered = btrfs_alloc_ordered_extent(inode, file_pos, &nocow_args->file_extent, is_prealloc - ? (1 << BTRFS_ORDERED_PREALLOC) - : (1 << BTRFS_ORDERED_NOCOW)); + ? (1U << BTRFS_ORDERED_PREALLOC) + : (1U << BTRFS_ORDERED_NOCOW)); if (IS_ERR(ordered)) { if (is_prealloc) btrfs_drop_extent_map_range(inode, file_pos, end, false); @@ -9733,8 +9733,8 @@ ssize_t btrfs_do_encoded_write(struct kiocb *iocb, struct iov_iter *from, free_extent_map(em);
ordered = btrfs_alloc_ordered_extent(inode, start, &file_extent, - (1 << BTRFS_ORDERED_ENCODED) | - (1 << BTRFS_ORDERED_COMPRESSED)); + (1U << BTRFS_ORDERED_ENCODED) | + (1U << BTRFS_ORDERED_COMPRESSED)); if (IS_ERR(ordered)) { btrfs_drop_extent_map_range(inode, start, end, false); ret = PTR_ERR(ordered); diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index 03c945711003c..f61b0bb1faccf 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -155,7 +155,7 @@ static struct btrfs_ordered_extent *alloc_ordered_extent( u64 qgroup_rsv = 0;
if (flags & - ((1 << BTRFS_ORDERED_NOCOW) | (1 << BTRFS_ORDERED_PREALLOC))) { + ((1U << BTRFS_ORDERED_NOCOW) | (1U << BTRFS_ORDERED_PREALLOC))) { /* For nocow write, we can release the qgroup rsv right now */ ret = btrfs_qgroup_free_data(inode, NULL, file_offset, num_bytes, &qgroup_rsv); if (ret < 0) @@ -253,7 +253,7 @@ static void insert_ordered_extent(struct btrfs_ordered_extent *entry) * @disk_bytenr: Offset of extent on disk. * @disk_num_bytes: Size of extent on disk. * @offset: Offset into unencoded data where file data starts. - * @flags: Flags specifying type of extent (1 << BTRFS_ORDERED_*). + * @flags: Flags specifying type of extent (1U << BTRFS_ORDERED_*). * @compress_type: Compression algorithm used for data. * * Most of these parameters correspond to &struct btrfs_file_extent_item. The diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index cdd373c277848..7285bf7926e3a 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -200,8 +200,7 @@ int btrfs_alloc_stripe_hash_table(struct btrfs_fs_info *info) struct btrfs_stripe_hash_table *x; struct btrfs_stripe_hash *cur; struct btrfs_stripe_hash *h; - int num_entries = 1 << BTRFS_STRIPE_HASH_TABLE_BITS; - int i; + unsigned int num_entries = 1U << BTRFS_STRIPE_HASH_TABLE_BITS;
if (info->stripe_hash_table) return 0; @@ -222,7 +221,7 @@ int btrfs_alloc_stripe_hash_table(struct btrfs_fs_info *info)
h = table->table;
- for (i = 0; i < num_entries; i++) { + for (unsigned int i = 0; i < num_entries; i++) { cur = h + i; INIT_LIST_HEAD(&cur->hash_list); spin_lock_init(&cur->lock); diff --git a/fs/btrfs/tests/extent-io-tests.c b/fs/btrfs/tests/extent-io-tests.c index 74aca7180a5a9..400574c6e82ec 100644 --- a/fs/btrfs/tests/extent-io-tests.c +++ b/fs/btrfs/tests/extent-io-tests.c @@ -14,9 +14,9 @@ #include "../disk-io.h" #include "../btrfs_inode.h"
-#define PROCESS_UNLOCK (1 << 0) -#define PROCESS_RELEASE (1 << 1) -#define PROCESS_TEST_LOCKED (1 << 2) +#define PROCESS_UNLOCK (1U << 0) +#define PROCESS_RELEASE (1U << 1) +#define PROCESS_TEST_LOCKED (1U << 2)
static noinline int process_page_range(struct inode *inode, u64 start, u64 end, unsigned long flags) diff --git a/fs/btrfs/zstd.c b/fs/btrfs/zstd.c index 3541efa765c73..94c19331823a9 100644 --- a/fs/btrfs/zstd.c +++ b/fs/btrfs/zstd.c @@ -24,7 +24,7 @@ #include "super.h"
#define ZSTD_BTRFS_MAX_WINDOWLOG 17 -#define ZSTD_BTRFS_MAX_INPUT (1 << ZSTD_BTRFS_MAX_WINDOWLOG) +#define ZSTD_BTRFS_MAX_INPUT (1U << ZSTD_BTRFS_MAX_WINDOWLOG) #define ZSTD_BTRFS_DEFAULT_LEVEL 3 #define ZSTD_BTRFS_MIN_LEVEL -15 #define ZSTD_BTRFS_MAX_LEVEL 15