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| author |   Eric W. Biederman <ebiederm@xmission.com> | 2022-01-08 11:23:02 -0600 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2022-01-08 12:43:57 -0600 |
| commit | 2d4bcf886e42f0f4846a3d9bdc3a90d278903a2e (patch) | |
| tree | 5a136721b78ad7530bd0befd4961f1ed6b110ccb /kernel/profile.c | |
| parent | signal: clean up kernel-doc comments (diff) | |
| download | linux-dev-2d4bcf886e42f0f4846a3d9bdc3a90d278903a2e.tar.xz linux-dev-2d4bcf886e42f0f4846a3d9bdc3a90d278903a2e.zip | |
exit: Remove profile_task_exit & profile_munmap
When I say remove I mean remove. All profile_task_exit and
profile_munmap do is call a blocking notifier chain. The helpers
profile_task_register and profile_task_unregister are not called
anywhere in the tree. Which means this is all dead code.
So remove the dead code and make it easier to read do_exit.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lkml.kernel.org/r/20220103213312.9144-1-ebiederm@xmission.com
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'kernel/profile.c')
| -rw-r--r-- | kernel/profile.c | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/kernel/profile.c b/kernel/profile.c index eb9c7f0f5ac5..9355cc934a96 100644 --- a/kernel/profile.c +++ b/kernel/profile.c @@ -135,14 +135,7 @@ int __ref profile_init(void) /* Profile event notifications */ -static BLOCKING_NOTIFIER_HEAD(task_exit_notifier); static ATOMIC_NOTIFIER_HEAD(task_free_notifier); -static BLOCKING_NOTIFIER_HEAD(munmap_notifier); - -void profile_task_exit(struct task_struct *task) -{ - blocking_notifier_call_chain(&task_exit_notifier, 0, task); -} int profile_handoff_task(struct task_struct *task) { @@ -151,11 +144,6 @@ int profile_handoff_task(struct task_struct *task) return (ret == NOTIFY_OK) ? 1 : 0; } -void profile_munmap(unsigned long addr) -{ - blocking_notifier_call_chain(&munmap_notifier, 0, (void *)addr); -} - int task_handoff_register(struct notifier_block *n) { return atomic_notifier_chain_register(&task_free_notifier, n); @@ -168,44 +156,6 @@ int task_handoff_unregister(struct notifier_block *n) } EXPORT_SYMBOL_GPL(task_handoff_unregister); -int profile_event_register(enum profile_type type, struct notifier_block *n) -{ - int err = -EINVAL; - - switch (type) { - case PROFILE_TASK_EXIT: - err = blocking_notifier_chain_register( - &task_exit_notifier, n); - break; - case PROFILE_MUNMAP: - err = blocking_notifier_chain_register( - &munmap_notifier, n); - break; - } - - return err; -} -EXPORT_SYMBOL_GPL(profile_event_register); - -int profile_event_unregister(enum profile_type type, struct notifier_block *n) -{ - int err = -EINVAL; - - switch (type) { - case PROFILE_TASK_EXIT: - err = blocking_notifier_chain_unregister( - &task_exit_notifier, n); - break; - case PROFILE_MUNMAP: - err = blocking_notifier_chain_unregister( - &munmap_notifier, n); - break; - } - - return err; -} -EXPORT_SYMBOL_GPL(profile_event_unregister); - #if defined(CONFIG_SMP) && defined(CONFIG_PROC_FS) /* * Each cpu has a pair of open-addressed hashtables for pending |