DepSurf

Function: __percpu_down_read

Status

Regular

• In 4.4: Absent ⚠️
• In 4.8: Absent ⚠️
• In 4.10: Selective Inline ⚠️

  int __percpu_down_read(struct percpu_rw_semaphore *sem, int try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff810d56e0)
  Location: kernel/locking/percpu-rwsem.c:42
  Inline: True
  Direct callers:
    - kernel/signal.c:exit_signals
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - fs/locks.c:locks_remove_file
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/ext4/inode.c:ext4_writepages
  

  Symbols:

  ffffffff810d56e0-ffffffff810d575e: __percpu_down_read (STB_GLOBAL)
  

• In 4.13: Selective Inline ⚠️

  int __percpu_down_read(struct percpu_rw_semaphore *sem, int try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff810d4690)
  Location: kernel/locking/percpu-rwsem.c:41
  Inline: True
  Direct callers:
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/signal.c:exit_signals
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/locks.c:locks_remove_file
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/ext4/inode.c:ext4_writepages
  

  Symbols:

  ffffffff810d4690-ffffffff810d4700: __percpu_down_read (STB_GLOBAL)
  

• In 4.15: Selective Inline ⚠️

  int __percpu_down_read(struct percpu_rw_semaphore *sem, int try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff810dc600)
  Location: kernel/locking/percpu-rwsem.c:41
  Inline: True
  Direct callers:
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/signal.c:exit_signals
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/locks.c:locks_remove_file
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/ext4/inode.c:ext4_writepages
  

  Symbols:

  ffffffff810dc600-ffffffff810dc67c: __percpu_down_read (STB_GLOBAL)
  

• In 4.18: Selective Inline ⚠️

  int __percpu_down_read(struct percpu_rw_semaphore *sem, int try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff810e4c50)
  Location: kernel/locking/percpu-rwsem.c:41
  Inline: True
  Direct callers:
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/signal.c:exit_signals
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/locks.c:locks_remove_file
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
  

  Symbols:

  ffffffff810e4c50-ffffffff810e4ccc: __percpu_down_read (STB_GLOBAL)
  

• In 5.0: Selective Inline ⚠️

  int __percpu_down_read(struct percpu_rw_semaphore *sem, int try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff810f0230)
  Location: kernel/locking/percpu-rwsem.c:41
  Inline: True
  Direct callers:
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/locks.c:locks_remove_file
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
  

  Symbols:

  ffffffff810f0230-ffffffff810f02ac: __percpu_down_read (STB_GLOBAL)
  

• In 5.3: Selective Inline ⚠️

  int __percpu_down_read(struct percpu_rw_semaphore *sem, int try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff810f88a0)
  Location: kernel/locking/percpu-rwsem.c:44
  Inline: True
  Direct callers:
    - kernel/fork.c:copy_process
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/exec.c:de_thread
    - fs/locks.c:locks_remove_file
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
  

  Symbols:

  ffffffff810f88a0-ffffffff810f8911: __percpu_down_read (STB_GLOBAL)
  

• In 5.4: Selective Inline ⚠️

  int __percpu_down_read(struct percpu_rw_semaphore *sem, int try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff811046e0)
  Location: kernel/locking/percpu-rwsem.c:44
  Inline: True
  Direct callers:
    - kernel/fork.c:copy_process
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/cgroup/cpuset.c:cpuset_read_lock
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/exec.c:de_thread
    - fs/locks.c:locks_remove_file
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
  

  Symbols:

  ffffffff811046e0-ffffffff81104751: __percpu_down_read (STB_GLOBAL)
  

• In 5.8: Selective Inline ⚠️

  bool __percpu_down_read(struct percpu_rw_semaphore *sem, bool try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff8110f360)
  Location: kernel/locking/percpu-rwsem.c:165
  Inline: True
  Direct callers:
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/cgroup/cgroup.c:cgroup_css_set_fork
    - kernel/cgroup/cpuset.c:cpuset_read_lock
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/exec.c:de_thread
    - fs/locks.c:locks_remove_file
    - fs/locks.c:generic_delete_lease
    - fs/locks.c:generic_add_lease
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
  

  Symbols:

  ffffffff8110f360-ffffffff8110f3b8: __percpu_down_read (STB_GLOBAL)
  

• In 5.11: Selective Inline ⚠️

  bool __percpu_down_read(struct percpu_rw_semaphore *sem, bool try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff8110c520)
  Location: kernel/locking/percpu-rwsem.c:165
  Inline: True
  Direct callers:
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/acct.c:do_acct_process
    - kernel/cgroup/cgroup.c:cgroup_css_set_fork
    - kernel/cgroup/cpuset.c:cpuset_read_lock
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/filemap.c:filemap_page_mkwrite
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/open.c:vfs_fallocate
    - fs/open.c:do_sys_ftruncate
    - fs/read_write.c:vfs_copy_file_range
    - fs/read_write.c:do_sendfile
    - fs/read_write.c:vfs_writev
    - fs/read_write.c:vfs_write
    - fs/exec.c:de_thread
    - fs/pipe.c:pipe_write
    - fs/inode.c:touch_atime
    - fs/namespace.c:mnt_want_write
    - fs/splice.c:do_splice
    - fs/remap_range.c:vfs_clone_file_range
    - fs/aio.c:aio_write
    - fs/io_uring.c:io_write
    - fs/locks.c:locks_remove_file
    - fs/locks.c:generic_delete_lease
    - fs/locks.c:generic_add_lease
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/coredump.c:do_coredump
    - fs/ext4/file.c:ext4_sample_last_mounted
    - fs/ext4/file.c:ext4_dax_huge_fault
    - fs/ext4/inode.c:ext4_page_mkwrite
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
    - fs/ext4/inode.c:ext4_evict_inode
    - fs/ext4/mmp.c:write_mmp_block
    - fs/fuse/dax.c:__fuse_dax_fault
    - drivers/block/loop.c:lo_write_bvec
  

  Symbols:

  ffffffff8110c520-ffffffff8110c578: __percpu_down_read (STB_GLOBAL)
  

• In 5.13: Selective Inline ⚠️

  bool __percpu_down_read(struct percpu_rw_semaphore *sem, bool try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff8110e350)
  Location: kernel/locking/percpu-rwsem.c:165
  Inline: True
  Direct callers:
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/acct.c:do_acct_process
    - kernel/cgroup/cgroup.c:cgroup_css_set_fork
    - kernel/cgroup/cpuset.c:cpuset_read_lock
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/filemap.c:filemap_page_mkwrite
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/open.c:vfs_fallocate
    - fs/open.c:do_sys_ftruncate
    - fs/read_write.c:vfs_copy_file_range
    - fs/read_write.c:do_sendfile
    - fs/read_write.c:vfs_writev
    - fs/read_write.c:vfs_write
    - fs/exec.c:de_thread
    - fs/pipe.c:pipe_write
    - fs/inode.c:touch_atime
    - fs/namespace.c:mnt_want_write
    - fs/splice.c:do_splice
    - fs/remap_range.c:vfs_clone_file_range
    - fs/aio.c:aio_write
    - fs/io_uring.c:io_write
    - fs/locks.c:locks_remove_file
    - fs/locks.c:generic_setlease
    - fs/locks.c:generic_add_lease
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/coredump.c:do_coredump
    - fs/ext4/file.c:ext4_sample_last_mounted
    - fs/ext4/file.c:ext4_dax_huge_fault
    - fs/ext4/inode.c:ext4_page_mkwrite
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
    - fs/ext4/inode.c:ext4_evict_inode
    - fs/ext4/mmp.c:write_mmp_block
    - fs/fuse/dax.c:__fuse_dax_fault
    - drivers/block/loop.c:lo_write_bvec
  

  Symbols:

  ffffffff8110e350-ffffffff8110e3a8: __percpu_down_read (STB_GLOBAL)
  

• In 5.15: Selective Inline ⚠️

  bool __percpu_down_read(struct percpu_rw_semaphore *sem, bool try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff8112da90)
  Location: kernel/locking/percpu-rwsem.c:165
  Inline: True
  Direct callers:
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/acct.c:do_acct_process
    - kernel/cgroup/cgroup.c:cgroup_css_set_fork
    - kernel/cgroup/cpuset.c:cpuset_read_lock
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/filemap.c:filemap_page_mkwrite
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/open.c:vfs_fallocate
    - fs/open.c:do_sys_ftruncate
    - fs/read_write.c:vfs_copy_file_range
    - fs/read_write.c:do_sendfile
    - fs/read_write.c:vfs_writev
    - fs/read_write.c:vfs_write
    - fs/exec.c:de_thread
    - fs/pipe.c:pipe_write
    - fs/inode.c:touch_atime
    - fs/namespace.c:mnt_want_write
    - fs/splice.c:do_splice
    - fs/remap_range.c:vfs_clone_file_range
    - fs/aio.c:aio_write
    - fs/io_uring.c:io_write
    - fs/locks.c:locks_remove_file
    - fs/locks.c:generic_setlease
    - fs/locks.c:generic_add_lease
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/coredump.c:do_coredump
    - fs/ext4/file.c:ext4_sample_last_mounted
    - fs/ext4/file.c:ext4_dax_huge_fault
    - fs/ext4/inode.c:ext4_page_mkwrite
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
    - fs/ext4/inode.c:ext4_evict_inode
    - fs/ext4/mmp.c:write_mmp_block
    - fs/fuse/dax.c:__fuse_dax_fault
    - drivers/block/loop.c:lo_write_bvec
  

  Symbols:

  ffffffff8112da90-ffffffff8112dae8: __percpu_down_read (STB_GLOBAL)
  

• In 5.19: ✅

  bool __percpu_down_read(struct percpu_rw_semaphore *sem, bool try);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff81f25c90)
  Location: kernel/locking/percpu-rwsem.c:167
  Inline: False
  Direct callers:
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/acct.c:do_acct_process
    - kernel/cgroup/cgroup.c:cgroup_css_set_fork
    - kernel/cgroup/cpuset.c:cpuset_read_lock
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/filemap.c:filemap_page_mkwrite
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/open.c:vfs_fallocate
    - fs/open.c:do_sys_ftruncate
    - fs/read_write.c:vfs_copy_file_range
    - fs/read_write.c:do_sendfile
    - fs/read_write.c:vfs_writev
    - fs/read_write.c:vfs_write
    - fs/exec.c:de_thread
    - fs/pipe.c:pipe_write
    - fs/inode.c:touch_atime
    - fs/namespace.c:mnt_want_write
    - fs/splice.c:do_splice
    - fs/remap_range.c:vfs_clone_file_range
    - fs/aio.c:aio_write
    - fs/locks.c:locks_remove_file
    - fs/locks.c:generic_setlease
    - fs/locks.c:generic_add_lease
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/coredump.c:do_coredump
    - fs/ext4/file.c:ext4_sample_last_mounted
    - fs/ext4/file.c:ext4_dax_huge_fault
    - fs/ext4/inode.c:ext4_page_mkwrite
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
    - fs/ext4/inode.c:ext4_evict_inode
    - fs/ext4/mmp.c:write_mmp_block
    - fs/fuse/dax.c:__fuse_dax_fault
    - io_uring/io_uring.c:io_write
  

  Symbols:

  ffffffff81f25c90-ffffffff81f25db4: __percpu_down_read (STB_GLOBAL)
  

• In 6.2: ✅

  bool __percpu_down_read(struct percpu_rw_semaphore *sem, bool try);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff820d16f0)
  Location: kernel/locking/percpu-rwsem.c:167
  Inline: False
  Direct callers:
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/acct.c:do_acct_process
    - kernel/cgroup/cgroup.c:cgroup_css_set_fork
    - kernel/cgroup/cpuset.c:cpuset_read_lock
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/filemap.c:filemap_page_mkwrite
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/open.c:vfs_fallocate
    - fs/open.c:do_sys_ftruncate
    - fs/read_write.c:vfs_copy_file_range
    - fs/read_write.c:do_sendfile
    - fs/read_write.c:vfs_writev
    - fs/read_write.c:vfs_write
    - fs/exec.c:de_thread
    - fs/pipe.c:pipe_write
    - fs/inode.c:touch_atime
    - fs/namespace.c:mnt_want_write
    - fs/splice.c:do_splice
    - fs/remap_range.c:vfs_clone_file_range
    - fs/aio.c:aio_write
    - fs/locks.c:locks_remove_file
    - fs/locks.c:generic_setlease
    - fs/locks.c:generic_add_lease
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/coredump.c:do_coredump
    - fs/ext4/file.c:ext4_sample_last_mounted
    - fs/ext4/file.c:ext4_dax_huge_fault
    - fs/ext4/inode.c:ext4_page_mkwrite
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
    - fs/ext4/inode.c:ext4_evict_inode
    - fs/ext4/mmp.c:write_mmp_block
    - fs/fuse/dax.c:__fuse_dax_fault
    - io_uring/rw.c:io_write
  

  Symbols:

  ffffffff820d16f0-ffffffff820d1816: __percpu_down_read (STB_GLOBAL)
  

• In 6.5: ✅

  bool __percpu_down_read(struct percpu_rw_semaphore *sem, bool try);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff82155a60)
  Location: kernel/locking/percpu-rwsem.c:167
  Inline: False
  Direct callers:
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/acct.c:do_acct_process
    - kernel/cgroup/cgroup.c:cgroup_css_set_fork
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/filemap.c:filemap_page_mkwrite
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/open.c:vfs_fallocate
    - fs/open.c:do_sys_ftruncate
    - fs/read_write.c:vfs_copy_file_range
    - fs/read_write.c:do_sendfile
    - fs/read_write.c:vfs_writev
    - fs/read_write.c:vfs_write
    - fs/exec.c:de_thread
    - fs/pipe.c:pipe_write
    - fs/inode.c:touch_atime
    - fs/namespace.c:mnt_want_write
    - fs/splice.c:do_splice
    - fs/remap_range.c:vfs_clone_file_range
    - fs/aio.c:aio_write
    - fs/locks.c:locks_remove_file
    - fs/locks.c:generic_setlease
    - fs/locks.c:generic_add_lease
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/coredump.c:do_coredump
    - fs/quota/quota.c:quotactl_block
    - fs/ext4/file.c:ext4_sample_last_mounted
    - fs/ext4/file.c:ext4_dax_huge_fault
    - fs/ext4/inode.c:ext4_page_mkwrite
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
    - fs/ext4/inode.c:ext4_evict_inode
    - fs/ext4/mmp.c:write_mmp_block
    - fs/fuse/dax.c:__fuse_dax_fault
    - io_uring/rw.c:io_write
  

  Symbols:

  ffffffff82155a60-ffffffff82155b86: __percpu_down_read (STB_GLOBAL)
  

• In 6.8: ✅

  bool __percpu_down_read(struct percpu_rw_semaphore *sem, bool try);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff822388a0)
  Location: kernel/locking/percpu-rwsem.c:167
  Inline: False
  Direct callers:
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/acct.c:do_acct_process
    - kernel/cgroup/cgroup.c:cgroup_css_set_fork
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/filemap.c:filemap_page_mkwrite
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/open.c:vfs_fallocate
    - fs/open.c:do_sys_ftruncate
    - fs/read_write.c:vfs_copy_file_range
    - fs/read_write.c:vfs_writev
    - fs/read_write.c:vfs_iter_write
    - fs/read_write.c:vfs_iocb_iter_write
    - fs/read_write.c:vfs_write
    - fs/exec.c:de_thread
    - fs/pipe.c:pipe_write
    - fs/inode.c:touch_atime
    - fs/namespace.c:mnt_want_write
    - fs/splice.c:do_splice
    - fs/splice.c:direct_splice_actor
    - fs/remap_range.c:vfs_clone_file_range
    - fs/aio.c:aio_write
    - fs/locks.c:locks_remove_file
    - fs/locks.c:generic_setlease
    - fs/locks.c:generic_add_lease
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/coredump.c:do_coredump
    - fs/quota/quota.c:quotactl_block
    - fs/ext4/file.c:ext4_sample_last_mounted
    - fs/ext4/file.c:ext4_dax_huge_fault
    - fs/ext4/inode.c:ext4_page_mkwrite
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
    - fs/ext4/inode.c:ext4_evict_inode
    - fs/ext4/mmp.c:write_mmp_block
    - fs/fuse/dax.c:__fuse_dax_fault
    - io_uring/rw.c:io_write
  

  Symbols:

  ffffffff822388a0-ffffffff822389c6: __percpu_down_read (STB_GLOBAL)
  

Arch

• In arm64: Selective Inline ⚠️

  int __percpu_down_read(struct percpu_rw_semaphore *sem, int try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffff80001016a478)
  Location: kernel/locking/percpu-rwsem.c:44
  Inline: True
  Direct callers:
    - kernel/fork.c:copy_process
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/cgroup/cpuset.c:cpuset_read_lock
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/exec.c:de_thread
    - fs/locks.c:locks_remove_file
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
  

  Symbols:

  ffff80001016a478-ffff80001016a530: __percpu_down_read (STB_GLOBAL)
  

• In armhf: Selective Inline ⚠️

  int __percpu_down_read(struct percpu_rw_semaphore *sem, int try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (c03b644c)
  Location: kernel/locking/percpu-rwsem.c:44
  Inline: True
  Direct callers:
    - kernel/fork.c:copy_process
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/cgroup/cpuset.c:cpuset_read_lock
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - fs/exec.c:de_thread
    - fs/locks.c:locks_remove_file
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/ext4/inode.c:ext4_writepages
  

  Symbols:

  c03b644c-c03b64dc: __percpu_down_read (STB_GLOBAL)
  

• In ppc64el: Selective Inline ⚠️

  int __percpu_down_read(struct percpu_rw_semaphore *sem, int try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (c0000000001c2120)
  Location: kernel/locking/percpu-rwsem.c:44
  Inline: True
  Direct callers:
    - kernel/fork.c:copy_process
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/cgroup/cpuset.c:cpuset_read_lock
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/exec.c:de_thread
    - fs/locks.c:locks_remove_file
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
  

  Symbols:

  c0000000001c2120-c0000000001c21e0: __percpu_down_read (STB_GLOBAL)
  

• In riscv64: Selective Inline ⚠️

  int __percpu_down_read(struct percpu_rw_semaphore *sem, int try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffe00010b2a0)
  Location: kernel/locking/percpu-rwsem.c:44
  Inline: True
  Direct callers:
    - kernel/fork.c:copy_process
    - kernel/signal.c:exit_signals
    - kernel/cgroup/cpuset.c:cpuset_read_lock
    - fs/exec.c:de_thread
    - fs/locks.c:locks_remove_file
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
  

  Symbols:

  ffffffe00010b2a0-ffffffe00010b32a: __percpu_down_read (STB_GLOBAL)
  

Flavor

• In aws: Selective Inline ⚠️

  int __percpu_down_read(struct percpu_rw_semaphore *sem, int try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff810fd9f0)
  Location: kernel/locking/percpu-rwsem.c:44
  Inline: True
  Direct callers:
    - kernel/fork.c:copy_process
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/cgroup/cpuset.c:cpuset_read_lock
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/exec.c:de_thread
    - fs/locks.c:locks_remove_file
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
  

  Symbols:

  ffffffff810fd9f0-ffffffff810fda61: __percpu_down_read (STB_GLOBAL)
  

• In azure: Selective Inline ⚠️

  int __percpu_down_read(struct percpu_rw_semaphore *sem, int try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff810edbf0)
  Location: kernel/locking/percpu-rwsem.c:44
  Inline: True
  Direct callers:
    - kernel/fork.c:copy_process
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/cgroup/cpuset.c:cpuset_read_lock
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/exec.c:de_thread
    - fs/locks.c:locks_remove_file
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
  

  Symbols:

  ffffffff810edbf0-ffffffff810edc61: __percpu_down_read (STB_GLOBAL)
  

• In gcp: Selective Inline ⚠️

  int __percpu_down_read(struct percpu_rw_semaphore *sem, int try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff810fabb0)
  Location: kernel/locking/percpu-rwsem.c:44
  Inline: True
  Direct callers:
    - kernel/fork.c:copy_process
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/cgroup/cpuset.c:cpuset_read_lock
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/exec.c:de_thread
    - fs/locks.c:locks_remove_file
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
  

  Symbols:

  ffffffff810fabb0-ffffffff810fac21: __percpu_down_read (STB_GLOBAL)
  

• In lowlatency: Selective Inline ⚠️

  int __percpu_down_read(struct percpu_rw_semaphore *sem, int try);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In kernel/locking/percpu-rwsem.c (ffffffff81105d80)
  Location: kernel/locking/percpu-rwsem.c:44
  Inline: True
  Direct callers:
    - kernel/fork.c:copy_process
    - kernel/cpu.c:__cpuhp_remove_state
    - kernel/cpu.c:__cpuhp_state_remove_instance
    - kernel/cpu.c:__cpuhp_setup_state
    - kernel/cpu.c:__cpuhp_state_add_instance
    - kernel/cpu.c:cpus_read_trylock
    - kernel/signal.c:exit_signals
    - kernel/cgroup/cpuset.c:cpuset_read_lock
    - kernel/events/uprobes.c:uprobe_start_dup_mmap
    - mm/memory_hotplug.c:restore_online_page_callback
    - mm/memory_hotplug.c:set_online_page_callback
    - fs/exec.c:de_thread
    - fs/locks.c:locks_remove_file
    - fs/locks.c:fcntl_getlease
    - fs/locks.c:__break_lease
    - fs/locks.c:__break_lease
    - fs/locks.c:posix_lock_inode
    - fs/locks.c:flock_lock_inode
    - fs/ext4/inode.c:ext4_dax_writepages
    - fs/ext4/inode.c:ext4_writepages
  

  Symbols:

  ffffffff81105d80-ffffffff81105dff: __percpu_down_read (STB_GLOBAL)
  

Differences

Regular

• No changes between 4.10 and 4.13 ✅
• No changes between 4.13 and 4.15 ✅
• No changes between 4.15 and 4.18 ✅
• No changes between 4.18 and 5.0 ✅
• No changes between 5.0 and 5.3 ✅
• No changes between 5.3 and 5.4 ✅
• Changed between 5.4 and 5.8 ⚠️

  • Param type changed. int try ➡️ bool try
  • Return type changed. int ➡️ bool
• No changes between 5.8 and 5.11 ✅
• No changes between 5.11 and 5.13 ✅
• No changes between 5.13 and 5.15 ✅
• No changes between 5.15 and 5.19 ✅
• No changes between 5.19 and 6.2 ✅
• No changes between 6.2 and 6.5 ✅
• No changes between 6.5 and 6.8 ✅

Arch

• No changes between amd64 and arm64 ✅
• No changes between amd64 and armhf ✅
• No changes between amd64 and ppc64el ✅
• No changes between amd64 and riscv64 ✅

Flavor

• No changes between generic and aws ✅
• No changes between generic and azure ✅
• No changes between generic and gcp ✅
• No changes between generic and lowlatency ✅