INODE_CONGESTED(9)                        The Linux VFS                        INODE_CONGESTED(9)



NAME
       inode_congested - test whether an inode is congested

SYNOPSIS
       int inode_congested(struct inode * inode, int cong_bits);

ARGUMENTS
       inode
           inode to test for congestion (may be NULL)

       cong_bits
           mask of WB_[a]sync_congested bits to test

DESCRIPTION
       Tests whether inode is congested.  cong_bits is the mask of congestion bits to test and
       the return value is the mask of set bits.

       If cgroup writeback is enabled for inode, the congestion state is determined by whether
       the cgwb (cgroup bdi_writeback) for the blkcg associated with inode is congested;
       otherwise, the root wb's congestion state is used.

       inode is allowed to be NULL as this function is often called on mapping->host which is
       NULL for the swapper space.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                        INODE_CONGESTED(9)