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FS-Cache: Bit waiting helpers
Add helpers for use with wait_on_bit(). Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
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2 changed files with 23 additions and 0 deletions
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@ -82,6 +82,9 @@ extern unsigned fscache_defer_create;
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extern unsigned fscache_debug;
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extern unsigned fscache_debug;
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extern struct kobject *fscache_root;
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extern struct kobject *fscache_root;
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extern int fscache_wait_bit(void *);
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extern int fscache_wait_bit_interruptible(void *);
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/*
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/*
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* fsc-proc.c
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* fsc-proc.c
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*/
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*/
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@ -102,3 +102,23 @@ static void __exit fscache_exit(void)
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}
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}
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module_exit(fscache_exit);
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module_exit(fscache_exit);
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/*
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* wait_on_bit() sleep function for uninterruptible waiting
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*/
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int fscache_wait_bit(void *flags)
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{
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schedule();
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return 0;
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}
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EXPORT_SYMBOL(fscache_wait_bit);
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/*
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* wait_on_bit() sleep function for interruptible waiting
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*/
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int fscache_wait_bit_interruptible(void *flags)
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{
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schedule();
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return signal_pending(current);
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}
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EXPORT_SYMBOL(fscache_wait_bit_interruptible);
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