blkdev_put

Name:blkdev_put

Proto:void blkdev_put(struct block_device *bdev, fmode_t mode)

Type:void

Parameter:

Type	Parameter	Name
struct block_device *	bdev
fmode_t	mode

1916

mutex_lock( & open/close mutex )

1918

If mode & File is opened with O_EXCL (only set for block devices) Then

1926

spin_lock( & pseudo-fs)

1928

WARN_ON_ONCE(--bd_holders < 0)

1929

WARN_ON_ONCE(--bd_holders < 0)

1932

If bdev_free = Not bd_holders Then bd_holder = NULL

1934

If Not bd_holders Then bd_holder = NULL

1937

spin_unlock( & pseudo-fs)

1943

If bdev_free && bd_write_holder Then

1944

disk_unblock_events(bd_disk)

1945

bd_write_holder = false

1954

disk_flush_events(bd_disk, DISK_EVENT_MEDIA_CHANGE)

1956

mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.

1958

__blkdev_put(bdev, mode, 0)

**Caller**
Name	Describe
swsusp_check	swsusp_check - Check for swsusp signature in the resume device
swsusp_close	swsusp_close - close swap device.
SYSCALL_DEFINE2
register_disk
get_tree_bdev	get_tree_bdev - Get a superblock based on a single block device@fc: The filesystem context holding the parameters@fill_super: Helper to initialise a new superblock
mount_bdev
kill_block_super
blkdev_get_by_path	lkdev_get_by_path - open a block device by name@path: path to the block device to open@mode: FMODE_* mask@holder: exclusive holder identifier Open the blockdevice described by the device file at @path. @mode* and @holder are identical to blkdev_get().
blkdev_close
swsusp_swap_check	swsusp_swap_check - check if the resume device is a swap device* and get its index (if so)* This is called before saving image

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