From: Josef Bacik Date: Tue, 15 Oct 2013 13:36:40 +0000 (-0400) Subject: Btrfs: add an assert to btrfs_lookup_csums_range for alignment X-Git-Tag: MMI-PSA29.97-13-9~13096^2~87 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4277a9c3b3665f2830c55ece015163867b9414cc;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git Btrfs: add an assert to btrfs_lookup_csums_range for alignment I was hitting weird issues when trying to remove hole extents and it turned out it was because I was sending non-aligned offsets down to btrfs_lookup_csums_range. So add an assert for this in case somebody trips over this in the future. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index 4f53159bdb9d..ae8a5139e0ee 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -329,6 +329,9 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end, u64 csum_end; u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy); + ASSERT(start == ALIGN(start, root->sectorsize) && + (end + 1) == ALIGN(end + 1, root->sectorsize)); + path = btrfs_alloc_path(); if (!path) return -ENOMEM;