Function report |
Source Code:fs\userfaultfd.c |
Create Date:2022-07-28 20:20:34 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:userfaultfd_release
Proto:static int userfaultfd_release(struct inode *inode, struct file *file)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct inode * | inode | |
struct file * | file |
881 | struct userfaultfd_wake_range range = {len = 0, } |
885 | WRITE_ONCE(leased , true) |
887 | If Not mmget_not_zero(mm) Then Go to wakeup |
898 | lock for writing |
900 | prev = NULL |
902 | cond_resched() |
903 | BUG_ON(!!ctx ^ !!(Flags, see mm.h. & (missing pages tracking | wrprotect pages tracking ))) |
910 | If still_valid Then |
921 | Flags, see mm.h. = new_flags |
926 | wakeup : |
932 | spin_lock_irq( & lock) |
933 | __wake_up_locked_key( & waitqueue head for the pending (i.e. not read) userfaults , Convenience macros for the sake of wake_up(): , & range) |
935 | spin_unlock_irq( & lock) |
938 | wake_up_all( & waitqueue head for events ) |
942 | Return 0 |
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