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ROMFS: support inode blocks calculation

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When use 'stat' tool to display file status, the 'Blocks' field always in
'0', this is not good for tool 'du'(e.g.: busybox 'du'), it always output
'0' size for the files under ROMFS since such tool calculates number of
512B Blocks.

This patch calculates approx.  number of 512B blocks based on inode size.

Signed-off-by: Libing Zhou <libing.zhou@nokia-sbell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Link: http://lkml.kernel.org/r/20200811052606.4243-1-libing.zhou@nokia-sbell.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Libing Zhou 2020-10-15 20:13:42 -07:00 committed by Linus Torvalds
parent 6a6155f664
commit d9bc85de46
1 changed files with 1 additions and 0 deletions
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fs/romfs/super.c
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@ -356,6 +356,7 @@ static struct inode *romfs_iget(struct super_block *sb, unsigned long pos)
}
i->i_mode = mode;
i->i_blocks = (i->i_size + 511) >> 9;
unlock_new_inode(i);
return i;