unlock_page man page on Scientific

unlock_page man page on Scientific

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UNLOCK_PAGE(9)		  Memory Management in Linux		UNLOCK_PAGE(9)

NAME
       unlock_page - unlock a locked page

SYNOPSIS
       void unlock_page(struct page * page);

ARGUMENTS
       page
	   the page

DESCRIPTION
       Unlocks the page and wakes up sleepers in ___wait_on_page_locked. Also
       wakes sleepers in wait_on_page_writeback because the wakeup mechananism
       between PageLocked pages and PageWriteback pages is shared. But that´s
       OK - sleepers in wait_on_page_writeback just go back to sleep.

       The mb is necessary to enforce ordering between the clear_bit and the
       read of the waitqueue (to avoid SMP races with a parallel
       wait_on_page_locked).

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013			UNLOCK_PAGE(9)

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