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Commit 1af53572 authored by Steven Whitehouse's avatar Steven Whitehouse
Browse files

[GFS2] Fix write alloc required shortcut calculation 



The comparison was being made against the wrong quantity.

Signed-off-by: default avatarSteven Whitehouse <swhiteho@redhat.com>
parent 05220535

fs/gfs2/bmap.c

+2 −2
Original line number Diff line number Diff line
@@ -1222,10 +1222,10 @@ int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset, 
		do_div(lblock_stop, bsize);

	} else {

		unsigned int shift = sdp->sd_sb.sb_bsize_shift;

		u64 end_of_file = (ip->i_di.di_size + sdp->sd_sb.sb_bsize - 1) >> shift;

		lblock = offset >> shift;

		lblock_stop = (offset + len + sdp->sd_sb.sb_bsize - 1) >> shift;

		if (lblock_stop > ip->i_di.di_blocks) { /* writing past the

							   last block */

		if (lblock_stop > end_of_file) {

			*alloc_required = 1;

			return 0;

		}