Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
filelock: use a consume fence in locks_inode_context()
Matches the idiom of storing a pointer with a release fence and safely
getting the content with a consume fence after.
Eliminates an actual fence on some archs.
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Link: https://patch.msgid.link/20251203094837.290654-1-mjguzik@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
authored by
Mateusz Guzik
and committed by
Christian Brauner
1fa4e69a
5854fc63
+4
-1
+4
-1
include/linux/filelock.h
+4
-1
include/linux/filelock.h
···
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static inline struct file_lock_context *
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locks_inode_context(const struct inode *inode)
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{
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-
return smp_load_acquire(&inode->i_flctx);
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+
/*
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* Paired with the fence in locks_get_lock_context().
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*/
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return READ_ONCE(inode->i_flctx);
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}
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#else /* !CONFIG_FILE_LOCKING */