Commit f3915f83 authored Jul 01, 2019 by Christoph Hellwig Committed by Andreas Gruenbacher Jul 03, 2019

gfs2: use page_offset in gfs2_page_mkwrite



Without casting page->index to a guaranteed 64-bit type, the value might be
treated as 32-bit on 32-bit platforms and thus get truncated.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

parent f29e62ee

fs/gfs2/file.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -408,7 +408,7 @@ static vm_fault_t gfs2_page_mkwrite(struct vm_fault *vmf)
		struct gfs2_sbd *sdp = GFS2_SB(inode);
		struct gfs2_alloc_parms ap = { .aflags = 0, };
		unsigned long last_index;
		u64 pos = page->index << PAGE_SHIFT;
		u64 pos = page_offset(page);
		unsigned int data_blocks, ind_blocks, rblocks;
		struct gfs2_holder gh;
		loff_t size;

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