hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I9VTE3 CVE: NA
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Set the minlen of extent allocation arguments to the alignment size to enforce alignment. This prevents the extent from being misaligned at the tail when we approach a no-space situation.
Although xfs_bmap_select_minlen updates args->minlen alignment, args-> minlen may revert to ap->minlen in subsequent extent allocations, which could violate the tail alignment.
Signed-off-by: Long Li leo.lilong@huawei.com --- fs/xfs/libxfs/xfs_bmap.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 35728779b0d6..bf09737cfc71 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -3510,6 +3510,7 @@ xfs_bmap_btalloc( */ if (xfs_inode_forcealign(ap->ip) && align) { args.alignment = align; + args.minlen = ap->minlen = align; if (stripe_align == 0 || stripe_align % align) stripe_align = align; } else {