1VFS_UNLINK(9)                    The Linux VFS                   VFS_UNLINK(9)
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NAME

6       vfs_unlink - unlink a filesystem object
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SYNOPSIS

9       int vfs_unlink(struct inode * dir, struct dentry * dentry,
10                      struct inode ** delegated_inode);
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ARGUMENTS

13       dir
14           parent directory
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16       dentry
17           victim
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19       delegated_inode
20           returns victim inode, if the inode is delegated.
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DESCRIPTION

23       The caller must hold dir->i_mutex.
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25       If vfs_unlink discovers a delegation, it will return -EWOULDBLOCK and
26       return a reference to the inode in delegated_inode. The caller should
27       then break the delegation on that inode and retry. Because breaking a
28       delegation may take a long time, the caller should drop dir->i_mutex
29       before doing so.
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31       Alternatively, a caller may pass NULL for delegated_inode. This may be
32       appropriate for callers that expect the underlying filesystem not to be
33       NFS exported.
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36Kernel Hackers Manual 3.10         June 2019                     VFS_UNLINK(9)
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