btrfs_extent_map_block_start identifier - Linux source code next-20260811

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FIXME
- FIXME
  - next-20260811

Defined in 1 files as a function:

fs/btrfs/extent_map.h, line 152 (as a function)

Referenced in 9 files:

Smatch caller information:

fs/btrfs/tree-log.c log_extent_csums() -> btrfs_extent_map_block_start()

Type	Key	Value
PARAM_VALUE	em	4096-ptr_max
PARAM_VALUE	em->disk_bytenr	0-18446744073709551612,18446744073709551614-u64max
DATA_SOURCE	em	$3
BIT_INFO	em->flags	0x0,0xffffffef

fs/btrfs/tree-log.c log_one_extent() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	4096-ptr_max
DATA_SOURCE	0	em	$2

fs/btrfs/file.c btrfs_zero_range() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	4096-ptr_max
PARAM_VALUE	0	em->flags	16-u32max
CAPPED_DATA	0	em->start	1
DATA_SOURCE	0	em	r btrfs_get_extent
BIT_INFO	0	em->flags	0x10,0xffffffffffffffff
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE	0	em->len
NO_OVERFLOW_SIMPLE	0	em->start
HALF_LOCKED2		&pool->lock

fs/btrfs/inode.c btrfs_encoded_read() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	4096-ptr_max
PARAM_VALUE	0	em->disk_bytenr	0-18446744073709551612,u64max
CAPPED_DATA	0	em->start	1
DATA_SOURCE	0	em	r btrfs_get_extent
CAPABLE	0	21
BIT_INFO	0	em->flags	0x0,0xffffffef
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE	0	em->len
NO_OVERFLOW_SIMPLE	0	em->start
LOCK2		&inode->vfs_inode.i_rwsem
TYPE_LOCK		(struct inode)->i_rwsem

fs/btrfs/inode.c btrfs_get_extent_allocation_hint() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	4096-ptr_max
PARAM_VALUE	0	em->disk_bytenr	0-18446744073709551611
CAPPED_DATA	0	em->start	1
DATA_SOURCE	0	em	r btrfs_search_extent_mapping
RX_PATH
TASK_NOT_RUNNING
LOCK2		&em_tree->lock
TYPE_LOCK		(struct extent_map_tree)->lock

fs/btrfs/inode.c btrfs_get_extent_allocation_hint() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	4096-ptr_max
PARAM_VALUE	0	em->disk_bytenr	0-18446744073709551611
CAPPED_DATA	0	em->start	1
DATA_SOURCE	0	em	r btrfs_search_extent_mapping
HARD_MAX	0	em->disk_bytenr	18446744073709551611
RX_PATH
TASK_NOT_RUNNING
LOCK2		&em_tree->lock
TYPE_LOCK		(struct extent_map_tree)->lock

fs/btrfs/extent_io.c btrfs_do_readpage() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	4096-ptr_max
CAPPED_DATA	0	em->start	1
DATA_SOURCE	0	em	r get_extent_map
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE	0	em->len
NO_OVERFLOW_SIMPLE	0	em->start

fs/btrfs/extent_io.c btrfs_do_readpage() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	4096-ptr_max
CAPPED_DATA	0	em->start	1
DATA_SOURCE	0	em	r get_extent_map
BIT_INFO	0	em->flags	0x0,0xffffffef
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE	0	em->len
NO_OVERFLOW_SIMPLE	0	em->start

fs/btrfs/extent_io.c submit_one_sector() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	4096-ptr_max
CAPPED_DATA	0	em->start	1
DATA_SOURCE	0	em	r btrfs_get_extent
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE	0	em->len
NO_OVERFLOW_SIMPLE	0	em->start

fs/btrfs/extent_io.c submit_one_sector() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	4096-ptr_max
CAPPED_DATA	0	em->start	1
DATA_SOURCE	0	em	r btrfs_get_extent
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE	0	em->len
NO_OVERFLOW_SIMPLE	0	em->start

fs/btrfs/direct-io.c btrfs_dio_iomap_begin() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	4096-ptr_max
PARAM_VALUE	0	em->disk_bytenr	0-18446744073709551612,u64max
PARAM_VALUE	0	em->flags	0-4294967295
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE	0	em->len
NO_OVERFLOW_SIMPLE	0	em->start

fs/btrfs/direct-io.c btrfs_get_blocks_direct_write() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	4096-ptr_max
PARAM_VALUE	0	em->disk_bytenr	0-18446744073709551612,18446744073709551614-u64max

fs/btrfs/extent_map.c btrfs_split_extent_map() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	4096-ptr_max
PARAM_VALUE	0	em->flags	0,2-u32max
CAPPED_DATA	0	em->len	1
CAPPED_DATA	0	em->start	1
CAPPED_DATA	0	&em->list	1
DATA_SOURCE	0	em	r btrfs_lookup_extent_mapping
BIT_INFO	0	em->flags	0x0,0xffffffde
RX_PATH
TASK_NOT_RUNNING
LOCK2		&em_tree->lock
HALF_LOCKED2		&pool->lock
TYPE_LOCK		(struct extent_map_tree)->lock

fs/btrfs/extent_map.c extent_map_block_end() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	4096-ptr_max
BUF_SIZE	0	em	(-1)-s32max
BUF_SIZE	0	em	(-1)-s32max
CAPPED_DATA	0	em->start	1
DATA_SOURCE	0	em	$0
NOSPEC	0	em->len
NOSPEC	0	em->ram_bytes
NOSPEC	0	em->start
RX_PATH
TASK_NOT_RUNNING
USER_DATA	0	em->len	0-u64max[c]
USER_DATA	0	em->offset	0
USER_DATA	0	em->ram_bytes	0-u64max[c]
USER_DATA	0	em->start	0-u64max[c]
NO_OVERFLOW_SIMPLE	0	em->disk_num_bytes
NO_OVERFLOW_SIMPLE	0	em->len
NO_OVERFLOW_SIMPLE	0	em->start
HALF_LOCKED2		&tree->lock
TYPE_LOCK		(struct extent_map_tree)->lock

fs/btrfs/extent_map.c mergeable_maps() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	4096-ptr_max
PARAM_VALUE	0	em->disk_bytenr	0-18446744073709551610
BUF_SIZE	0	em	(-1),1-s32max
BUF_SIZE	0	em	(-1),1-s32max
CAPPED_DATA	0	em->start	1
DATA_SOURCE	0	em	$1
FUZZY_MAX	0	em->disk_bytenr	18446744073709551610
NOSPEC	0	em->len
NOSPEC	0	em->ram_bytes
HARD_MAX	0	em->disk_bytenr	18446744073709551610
RX_PATH
TASK_NOT_RUNNING
USER_DATA	0	em->len	0-u64max[c]
USER_DATA	0	em->offset	0
USER_DATA	0	em->ram_bytes	0-u64max[c]
NO_OVERFLOW_SIMPLE	0	em->disk_num_bytes
NO_OVERFLOW_SIMPLE	0	em->start
HALF_LOCKED2		&tree->lock
TYPE_LOCK		(struct extent_map_tree)->lock

fs/btrfs/tests/inode-tests.c test_hole_first() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	0-ptr_max
DATA_SOURCE	0	em	r btrfs_get_extent

fs/btrfs/tests/inode-tests.c test_hole_first() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	4096-ptr_max
DATA_SOURCE	0	em	r btrfs_get_extent

fs/btrfs/compression.c add_ra_bio_folios() -> btrfs_extent_map_block_start()

Type	Parameter	Key	Value
PARAM_VALUE	0	em	4096-ptr_max
CAPPED_DATA	0	em->start	1
DATA_SOURCE	0	em	r btrfs_lookup_extent_mapping
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE	0	em->len
NO_OVERFLOW_SIMPLE	0	em->start

fs/btrfs/tests/extent-map-tests.c __test_case_3() -> btrfs_extent_map_block_start()

Type	Key	Value
PARAM_VALUE	em	4096-ptr_max
CAPPED_DATA	em->start	1
NO_OVERFLOW_SIMPLE	em->len
NO_OVERFLOW_SIMPLE	em->start

fs/btrfs/tests/extent-map-tests.c test_case_7() -> btrfs_extent_map_block_start()

Type	Key	Value
PARAM_VALUE	em	4096-ptr_max
DATA_SOURCE	em	r btrfs_lookup_extent_mapping
NO_OVERFLOW_SIMPLE	em->len
NO_OVERFLOW_SIMPLE	em->start

fs/btrfs/tests/extent-map-tests.c test_case_7() -> btrfs_extent_map_block_start()

Type	Key	Value
PARAM_VALUE	em	4096-ptr_max
DATA_SOURCE	em	r btrfs_lookup_extent_mapping
NO_OVERFLOW_SIMPLE	em->len
NO_OVERFLOW_SIMPLE	em->start