mirror of
https://github.com/LineageOS/android_kernel_samsung_msm8226.git
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Kevin F. Haggerty
238a0fb5ad
This is the 3.4.113 stable release Change-Id: I80791430656359c5447a675cbff4431362d18df0 Signed-off-by: Kevin F. Haggerty <haggertk@lineageos.org>
26 lines
577 B
C
26 lines
577 B
C
/*
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* linux/fs/ext4/bitmap.c
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*
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* Copyright (C) 1992, 1993, 1994, 1995
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* Remy Card (card@masi.ibp.fr)
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* Laboratoire MASI - Institut Blaise Pascal
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* Universite Pierre et Marie Curie (Paris VI)
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*/
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#include <linux/buffer_head.h>
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#include <linux/jbd2.h>
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#include "ext4.h"
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static const int nibblemap[] = {4, 3, 3, 2, 3, 2, 2, 1, 3, 2, 2, 1, 2, 1, 1, 0};
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unsigned int ext4_count_free(char *bitmap, unsigned int numchars)
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{
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unsigned int i, sum = 0;
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for (i = 0; i < numchars; i++)
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sum += nibblemap[bitmap[i] & 0xf] +
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nibblemap[(bitmap[i] >> 4) & 0xf];
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return sum;
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}
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