deactivate_locked_super man page on Scientific

deactivate_locked_super man page on Scientific

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DEACTIVATE_LOCKED_SU(9)		 The Linux VFS	       DEACTIVATE_LOCKED_SU(9)

NAME
       deactivate_locked_super - drop an active reference to superblock

SYNOPSIS
       void deactivate_locked_super(struct super_block * s);

ARGUMENTS
       s
	   superblock to deactivate

DESCRIPTION
       Equivalent of up_write(s->s_umount); deactivate_super(s);, except that
       it does not unlock it until it´s all over. As the result, it´s safe to
       use to dispose of new superblock on ->get_sb failure exits - nobody
       will see the sucker until it´s all over. Equivalent using up_write +
       deactivate_super is safe for that purpose only if superblock is either
       safe to use or has NULL ->s_root when we unlock.

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

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