---
name: "shrink_dcache_sb"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/shrink_dcache_sb"
---

# shrink\_dcache\_sb(9)

shrink dcache for a superblock

## NAME

shrink\_dcache\_sb - shrink dcache for a superblock

## SYNOPSIS

**void shrink\_dcache\_sb(struct super\_block \*** *sb***);**

## ARGUMENTS

*sb*

superblock

## DESCRIPTION

Shrink the dcache for the specified super block. This is used to free the dcache before unmounting a file system.

## COPYRIGHT