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Some ->lookup handlers will need to drop and retake the parent lock, so they can safely use d_alloc_parallel(). ->lookup can be called with the parent lock either exclusive or shared. A new flag, LOOKUP_SHARED, tells ->lookup how the parent is locked. This is rather ugly, but will be gone soon after we move d_alloc_parallel() out of the directory lock as ->lookup() will *always* called with a shared lock on the parent. Signed-off-by: NeilBrown <neil@brown.name> Link: https://patch.msgid.link/20260904215142.1060510-6-neilb@ownmail.net Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org> |
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