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SubjectRe: [RFC/PATCH 2/8] revoke: inode revoke lock V7
This is a relatively minor detail in the rather bigger context of this
patch, but...

> @@ -642,6 +644,7 @@ struct inode {
> struct list_head inotify_watches; /* watches on this inode */
> struct mutex inotify_mutex; /* protects the watches list */
> #endif
> + wait_queue_head_t i_revoke_wait;

That seems like a relatively hefty addition to every inode in the system
when revoke - I think - will be a fairly rare operation. Would there be
any significant cost to using a single, global revoke-wait queue instead
of growing the inode structure?


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