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btrfs_drop_extent fixe for inline items > 8K

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When truncating a inline extent, btrfs_drop_extents doesn't properly
handle the case "key.offset > inline_limit". This bug can only happen
when max line size is larger than 8K.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Yan 2008-01-30 14:39:54 -05:00 • committed by Chris Mason
parent 1b0f7c29e2
commit 0181e58f91
1 changed files with 3 additions and 5 deletions
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8
fs/btrfs/file.c
View file

@ -591,8 +591,7 @@ next_slot:
} }
} }
bookend = 1; bookend = 1;
if (found_inline && start <= key.offset && if (found_inline && start <= key.offset)
inline_limit < extent_end)
keep = 1; keep = 1;
} }
/* truncate existing extent */ /* truncate existing extent */
@ -672,11 +671,10 @@ next_slot:
if (!bookend) if (!bookend)
continue; continue;
} }
if (bookend && found_inline && start <= key.offset && if (bookend && found_inline && start <= key.offset) {
inline_limit < extent_end && key.offset <= inline_limit) {
u32 new_size; u32 new_size;
new_size = btrfs_file_extent_calc_inline_size( new_size = btrfs_file_extent_calc_inline_size(
extent_end - inline_limit); extent_end - end);
btrfs_truncate_item(trans, root, path, new_size, 0); btrfs_truncate_item(trans, root, path, new_size, 0);
} }
/* create bookend, splitting the extent in two */ /* create bookend, splitting the extent in two */