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![]() - tracing/probes: Adding new pseudo-types %pd and %pD support for dumping dentry name from 'struct dentry *' and file name from 'struct file *'. - uprobes: Some performance optimizations have been done. . Speed up the BPF uprobe event by delaying the fetching of the uprobe event arguments that are not used in BPF. . Avoid locking by speculatively checking whether uprobe event is valid. . Reduce lock contention by using read/write_lock instead of spinlock for uprobe list operation. This improved BPF uprobe benchmark result 43% on average. - rethook: Removes non-fatal warning messages when tracing stack from BPF and skip rcu_is_watching() validation in rethook if possible. - objpool: Optimizing objpool (which is used by kretprobes and fprobe as rethook backend storage) by inlining functions and avoid caching nr_cpu_ids because it is a const value. - fprobe: Add entry/exit callbacks types (code cleanup) - kprobes: Check ftrace was killed in kprobes if it uses ftrace. -----BEGIN PGP SIGNATURE----- iQFPBAABCgA5FiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmZFUxsbHG1hc2FtaS5o aXJhbWF0c3VAZ21haWwuY29tAAoJENv7B78FKz8b+fIH/A96/SeC5WRLhXmHfTCM IvKUea2n0b0oV/2pVfHqfkCBTICuUZ97Opd9VH9jLtjBOTh0fUOGZ2DNVGdSYfWm IIkS5dhuZxHXrSHEVYykwLHI3AOL7Q6Ny9EmOg1CNMidUkPMNtBvppsBYPlFU/B/ qQJAvOdkVOnNITCaas0+MNgepoVVKdJzdNQ1I4WrGyG8isCZBaCYKo2QcGyheCNN y8NXvnVHgmgHQ8nTaeE5AawclFzFnhwHfPQPe1kiyGrx15b8K+VYmaZxPKv33A1a KT3TKJ1Ep7s7iWFh2iPVJzIwOXCmSnvNTKfNx/MDuKtO7UVfFwytoMEaekbmv3bG VqM= =n/mW -----END PGP SIGNATURE----- Merge tag 'probes-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull probes updates from Masami Hiramatsu: - tracing/probes: Add new pseudo-types %pd and %pD support for dumping dentry name from 'struct dentry *' and file name from 'struct file *' - uprobes performance optimizations: - Speed up the BPF uprobe event by delaying the fetching of the uprobe event arguments that are not used in BPF - Avoid locking by speculatively checking whether uprobe event is valid - Reduce lock contention by using read/write_lock instead of spinlock for uprobe list operation. This improved BPF uprobe benchmark result 43% on average - rethook: Remove non-fatal warning messages when tracing stack from BPF and skip rcu_is_watching() validation in rethook if possible - objpool: Optimize objpool (which is used by kretprobes and fprobe as rethook backend storage) by inlining functions and avoid caching nr_cpu_ids because it is a const value - fprobe: Add entry/exit callbacks types (code cleanup) - kprobes: Check ftrace was killed in kprobes if it uses ftrace * tag 'probes-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: kprobe/ftrace: bail out if ftrace was killed selftests/ftrace: Fix required features for VFS type test case objpool: cache nr_possible_cpus() and avoid caching nr_cpu_ids objpool: enable inlining objpool_push() and objpool_pop() operations rethook: honor CONFIG_FTRACE_VALIDATE_RCU_IS_WATCHING in rethook_try_get() ftrace: make extra rcu_is_watching() validation check optional uprobes: reduce contention on uprobes_tree access rethook: Remove warning messages printed for finding return address of a frame. fprobe: Add entry/exit callbacks types selftests/ftrace: add fprobe test cases for VFS type "%pd" and "%pD" selftests/ftrace: add kprobe test cases for VFS type "%pd" and "%pD" Documentation: tracing: add new type '%pd' and '%pD' for kprobe tracing/probes: support '%pD' type for print struct file's name tracing/probes: support '%pd' type for print struct dentry's name uprobes: add speculative lockless system-wide uprobe filter check uprobes: prepare uprobe args buffer lazily uprobes: encapsulate preparation of uprobe args buffer |
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