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authorChristoph Hellwig <hch@lst.de>2021-02-02 13:13:25 +0100
committerJessica Yu <jeyu@kernel.org>2021-02-08 12:21:40 +0100
commita006050575745ca2be25118b90f1c37f454ac542 (patch)
tree443ebee9efd98b83825c939c1a8879613ac32561 /include/linux/module.h
parent089049f6c9956c5cf1fc89fe10229c76e99f4bef (diff)
module: use RCU to synchronize find_module
Allow for a RCU-sched critical section around find_module, following the lower level find_module_all helper, and switch the two callers outside of module.c to use such a RCU-sched critical section instead of module_mutex. Reviewed-by: Petr Mladek <pmladek@suse.com> Acked-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jessica Yu <jeyu@kernel.org>
Diffstat (limited to 'include/linux/module.h')
-rw-r--r--include/linux/module.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/module.h b/include/linux/module.h
index 7a0bcb5b1ffc..a64aa84d1b18 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -586,7 +586,7 @@ static inline bool within_module(unsigned long addr, const struct module *mod)
return within_module_init(addr, mod) || within_module_core(addr, mod);
}
-/* Search for module by name: must hold module_mutex. */
+/* Search for module by name: must be in a RCU-sched critical section. */
struct module *find_module(const char *name);
struct symsearch {