Check the bound earlier than computing the next search start pos. Signed-off-by: Wang Sheng-Hui <shhuiw@xxxxxxxxx> --- fs/f2fs/dir.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index 9d1cd42..83a3549 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -406,13 +406,17 @@ next: zero_end = find_next_bit_le(&dentry_blk->dentry_bitmap, NR_DENTRY_IN_BLOCK, zero_start); + if (zero_end >= NR_DENTRY_IN_BLOCK) + zero_end = NR_DENTRY_IN_BLOCK; + if (zero_end - zero_start >= slots) return zero_start; + if (zero_end >= NR_DENTRY_IN_BLOCK) + return NR_DENTRY_IN_BLOCK; + bit_start = zero_end + 1; - if (zero_end + 1 >= NR_DENTRY_IN_BLOCK) - return NR_DENTRY_IN_BLOCK; goto next; } -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
