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| author | H. Peter Anvin <hpa@zytor.com> | 2009-05-02 17:26:06 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-05-02 17:26:06 -0700 |
| commit | 9cd4a3b4fb21482b474d63486fe677966eeb2761 (patch) | |
| tree | 674f379d360aafbdb94b5748e70d25ce12a47b4b /com32/lib/syslinux/shuffle.c | |
| parent | 6601e0554dbb56b0ecd784eed8ad9286b6182f1d (diff) | |
| download | syslinux-9cd4a3b4fb21482b474d63486fe677966eeb2761.tar.gz | |
shuffle: align the shuffle safe area
For performance, align the shuffle safe area to a dword boundary.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'com32/lib/syslinux/shuffle.c')
| -rw-r--r-- | com32/lib/syslinux/shuffle.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/com32/lib/syslinux/shuffle.c b/com32/lib/syslinux/shuffle.c index 196fc64a..6c33d0a5 100644 --- a/com32/lib/syslinux/shuffle.c +++ b/com32/lib/syslinux/shuffle.c @@ -141,11 +141,12 @@ int syslinux_do_shuffle(struct syslinux_movelist *fraglist, sizeof(struct shuffle_descriptor)*DESC_BLOCK_SIZE + sizeof(struct shuffle_descriptor) + shuffler_size; - if (descfree < descmem) + descaddr = (desczone + descfree - descmem) & ~3; + + if (descaddr < desczone) goto bail; /* No memory block large enough */ /* Mark memory used by shuffle descriptors as reserved */ - descaddr = desczone + descfree - descmem; if (syslinux_add_memmap(&rxmap, descaddr, descmem, SMT_RESERVED)) goto bail; |