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btrfs: use fixed width int type for extent_state::state 

Currently the type is unsigned int which could change its width
depending on the architecture. We need up to 32 bits so make it
explicit.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2020-11-13 20:51:40 +08:00 committed by David Sterba
parent e09caaf913
commit f97e27e91d
3 changed files with 42 additions and 46 deletions
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33
fs/btrfs/extent-io-tree.h
View File

@ -87,7 +87,7 @@ struct extent_state {
/* ADD NEW ELEMENTS AFTER THIS */
wait_queue_head_t wq;
refcount_t refs;
unsigned state;
u32 state;
struct io_failure_record *failrec;
@ -119,19 +119,18 @@ void __cold extent_io_exit(void);
u64 count_range_bits(struct extent_io_tree *tree,
u64 *start, u64 search_end,
u64 max_bytes, unsigned bits, int contig);
u64 max_bytes, u32 bits, int contig);
void free_extent_state(struct extent_state *state);
int test_range_bit(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits, int filled,
struct extent_state *cached_state);
u32 bits, int filled, struct extent_state *cached_state);
int clear_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits, struct extent_changeset *changeset);
u32 bits, struct extent_changeset *changeset);
int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits, int wake, int delete,
u32 bits, int wake, int delete,
struct extent_state **cached);
int __clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits, int wake, int delete,
u32 bits, int wake, int delete,
struct extent_state **cached, gfp_t mask,
struct extent_changeset *changeset);
@ -155,7 +154,7 @@ static inline int unlock_extent_cached_atomic(struct extent_io_tree *tree,
}
static inline int clear_extent_bits(struct extent_io_tree *tree, u64 start,
u64 end, unsigned bits)
u64 end, u32 bits)
{
int wake = 0;
@ -166,16 +165,16 @@ static inline int clear_extent_bits(struct extent_io_tree *tree, u64 start,
}
int set_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits, struct extent_changeset *changeset);
u32 bits, struct extent_changeset *changeset);
int set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits, unsigned exclusive_bits, u64 *failed_start,
u32 bits, unsigned exclusive_bits, u64 *failed_start,
struct extent_state **cached_state, gfp_t mask,
struct extent_changeset *changeset);
int set_extent_bits_nowait(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits);
u32 bits);
static inline int set_extent_bits(struct extent_io_tree *tree, u64 start,
u64 end, unsigned bits)
u64 end, u32 bits)
{
return set_extent_bit(tree, start, end, bits, 0, NULL, NULL, GFP_NOFS,
NULL);
@ -204,11 +203,11 @@ static inline int clear_extent_dirty(struct extent_io_tree *tree, u64 start,
}
int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits, unsigned clear_bits,
u32 bits, u32 clear_bits,
struct extent_state **cached_state);
static inline int set_extent_delalloc(struct extent_io_tree *tree, u64 start,
u64 end, unsigned int extra_bits,
u64 end, u32 extra_bits,
struct extent_state **cached_state)
{
return set_extent_bit(tree, start, end,
@ -239,12 +238,12 @@ static inline int set_extent_uptodate(struct extent_io_tree *tree, u64 start,
}
int find_first_extent_bit(struct extent_io_tree *tree, u64 start,
u64 *start_ret, u64 *end_ret, unsigned bits,
u64 *start_ret, u64 *end_ret, u32 bits,
struct extent_state **cached_state);
void find_first_clear_extent_bit(struct extent_io_tree *tree, u64 start,
u64 *start_ret, u64 *end_ret, unsigned bits);
u64 *start_ret, u64 *end_ret, u32 bits);
int find_contiguous_extent_bit(struct extent_io_tree *tree, u64 start,
u64 *start_ret, u64 *end_ret, unsigned bits);
u64 *start_ret, u64 *end_ret, u32 bits);
int extent_invalidatepage(struct extent_io_tree *tree,
struct page *page, unsigned long offset);
bool btrfs_find_delalloc_range(struct extent_io_tree *tree, u64 *start,

52
fs/btrfs/extent_io.c
View File

@ -142,7 +142,7 @@ struct extent_page_data {
unsigned int sync_io:1;
};
static int add_extent_changeset(struct extent_state *state, unsigned bits,
static int add_extent_changeset(struct extent_state *state, u32 bits,
struct extent_changeset *changeset,
int set)
{
@ -530,7 +530,7 @@ static void merge_state(struct extent_io_tree *tree,
}
static void set_state_bits(struct extent_io_tree *tree,
struct extent_state *state, unsigned *bits,
struct extent_state *state, u32 *bits,
struct extent_changeset *changeset);
/*
@ -547,7 +547,7 @@ static int insert_state(struct extent_io_tree *tree,
struct extent_state *state, u64 start, u64 end,
struct rb_node ***p,
struct rb_node **parent,
unsigned *bits, struct extent_changeset *changeset)
u32 *bits, struct extent_changeset *changeset)
{
struct rb_node *node;
@ -628,11 +628,11 @@ static struct extent_state *next_state(struct extent_state *state)
*/
static struct extent_state *clear_state_bit(struct extent_io_tree *tree,
struct extent_state *state,
unsigned *bits, int wake,
u32 *bits, int wake,
struct extent_changeset *changeset)
{
struct extent_state *next;
unsigned bits_to_clear = *bits & ~EXTENT_CTLBITS;
u32 bits_to_clear = *bits & ~EXTENT_CTLBITS;
int ret;
if ((bits_to_clear & EXTENT_DIRTY) && (state->state & EXTENT_DIRTY)) {
@ -695,9 +695,9 @@ static void extent_io_tree_panic(struct extent_io_tree *tree, int err)
* This takes the tree lock, and returns 0 on success and < 0 on error.
*/
int __clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits, int wake, int delete,
struct extent_state **cached_state,
gfp_t mask, struct extent_changeset *changeset)
u32 bits, int wake, int delete,
struct extent_state **cached_state,
gfp_t mask, struct extent_changeset *changeset)
{
struct extent_state *state;
struct extent_state *cached;
@ -868,7 +868,7 @@ static void wait_on_state(struct extent_io_tree *tree,
* The tree lock is taken by this function
*/
static void wait_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
unsigned long bits)
u32 bits)
{
struct extent_state *state;
struct rb_node *node;
@ -915,9 +915,9 @@ static void wait_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
static void set_state_bits(struct extent_io_tree *tree,
struct extent_state *state,
unsigned *bits, struct extent_changeset *changeset)
u32 *bits, struct extent_changeset *changeset)
{
unsigned bits_to_set = *bits & ~EXTENT_CTLBITS;
u32 bits_to_set = *bits & ~EXTENT_CTLBITS;
int ret;
if (tree->private_data && is_data_inode(tree->private_data))
@ -961,8 +961,8 @@ static void cache_state(struct extent_state *state,
*
* [start, end] is inclusive This takes the tree lock.
*/
int set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, unsigned bits,
unsigned exclusive_bits, u64 *failed_start,
int set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, u32 bits,
u32 exclusive_bits, u64 *failed_start,
struct extent_state **cached_state, gfp_t mask,
struct extent_changeset *changeset)
{
@ -1200,7 +1200,7 @@ int set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, unsigned bit
* All allocations are done with GFP_NOFS.
*/
int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits, unsigned clear_bits,
u32 bits, u32 clear_bits,
struct extent_state **cached_state)
{
struct extent_state *state;
@ -1401,7 +1401,7 @@ int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
/* wrappers around set/clear extent bit */
int set_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits, struct extent_changeset *changeset)
u32 bits, struct extent_changeset *changeset)
{
/*
* We don't support EXTENT_LOCKED yet, as current changeset will
@ -1416,14 +1416,14 @@ int set_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
}
int set_extent_bits_nowait(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits)
u32 bits)
{
return set_extent_bit(tree, start, end, bits, 0, NULL, NULL,
GFP_NOWAIT, NULL);
}
int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits, int wake, int delete,
u32 bits, int wake, int delete,
struct extent_state **cached)
{
return __clear_extent_bit(tree, start, end, bits, wake, delete,
@ -1431,7 +1431,7 @@ int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
}
int clear_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits, struct extent_changeset *changeset)
u32 bits, struct extent_changeset *changeset)
{
/*
* Don't support EXTENT_LOCKED case, same reason as
@ -1519,8 +1519,7 @@ void extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end)
* nothing was found after 'start'
*/
static struct extent_state *
find_first_extent_bit_state(struct extent_io_tree *tree,
u64 start, unsigned bits)
find_first_extent_bit_state(struct extent_io_tree *tree, u64 start, u32 bits)
{
struct rb_node *node;
struct extent_state *state;
@ -1555,7 +1554,7 @@ find_first_extent_bit_state(struct extent_io_tree *tree,
* Return 1 if we found nothing.
*/
int find_first_extent_bit(struct extent_io_tree *tree, u64 start,
u64 *start_ret, u64 *end_ret, unsigned bits,
u64 *start_ret, u64 *end_ret, u32 bits,
struct extent_state **cached_state)
{
struct extent_state *state;
@ -1606,7 +1605,7 @@ int find_first_extent_bit(struct extent_io_tree *tree, u64 start,
* returned will be the full contiguous area with the bits set.
*/
int find_contiguous_extent_bit(struct extent_io_tree *tree, u64 start,
u64 *start_ret, u64 *end_ret, unsigned bits)
u64 *start_ret, u64 *end_ret, u32 bits)
{
struct extent_state *state;
int ret = 1;
@ -1643,7 +1642,7 @@ int find_contiguous_extent_bit(struct extent_io_tree *tree, u64 start,
* trim @end_ret to the appropriate size.
*/
void find_first_clear_extent_bit(struct extent_io_tree *tree, u64 start,
u64 *start_ret, u64 *end_ret, unsigned bits)
u64 *start_ret, u64 *end_ret, u32 bits)
{
struct extent_state *state;
struct rb_node *node, *prev = NULL, *next;
@ -2014,8 +2013,7 @@ static int __process_pages_contig(struct address_space *mapping,
void extent_clear_unlock_delalloc(struct btrfs_inode *inode, u64 start, u64 end,
struct page *locked_page,
unsigned clear_bits,
unsigned long page_ops)
u32 clear_bits, unsigned long page_ops)
{
clear_extent_bit(&inode->io_tree, start, end, clear_bits, 1, 0, NULL);
@ -2031,7 +2029,7 @@ void extent_clear_unlock_delalloc(struct btrfs_inode *inode, u64 start, u64 end,
*/
u64 count_range_bits(struct extent_io_tree *tree,
u64 *start, u64 search_end, u64 max_bytes,
unsigned bits, int contig)
u32 bits, int contig)
{
struct rb_node *node;
struct extent_state *state;
@ -2151,7 +2149,7 @@ struct io_failure_record *get_state_failrec(struct extent_io_tree *tree, u64 sta
* range is found set.
*/
int test_range_bit(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits, int filled, struct extent_state *cached)
u32 bits, int filled, struct extent_state *cached)
{
struct extent_state *state = NULL;
struct rb_node *node;

3
fs/btrfs/extent_io.h
View File

@ -255,8 +255,7 @@ void extent_range_clear_dirty_for_io(struct inode *inode, u64 start, u64 end);
void extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end);
void extent_clear_unlock_delalloc(struct btrfs_inode *inode, u64 start, u64 end,
struct page *locked_page,
unsigned bits_to_clear,
unsigned long page_ops);
u32 bits_to_clear, unsigned long page_ops);
struct bio *btrfs_bio_alloc(u64 first_byte);
struct bio *btrfs_io_bio_alloc(unsigned int nr_iovecs);
struct bio *btrfs_bio_clone(struct bio *bio);