From ec2cdedf798385a9397ac50dd0405dd658f8529c Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 25 Aug 2008 19:30:15 +0900 Subject: [PATCH] block: allow deleting zero length partition delete_partition() was noop for zero length partition. As the addition code allows creating zero lenght partition and deletion is assumed to always succeed, this causes memory leak for zero length partitions. Allow zero length partitions to end their meaningless lives. While at it, allow deleting zero lenght partition via BLKPG_DEL_PARTITION ioctl too. Signed-off-by: Tejun Heo Signed-off-by: Jens Axboe --- block/ioctl.c | 2 -- fs/partitions/check.c | 2 -- 2 files changed, 4 deletions(-) diff --git a/block/ioctl.c b/block/ioctl.c index 375c57922b00..c722de0ef2ee 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -68,8 +68,6 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user case BLKPG_DEL_PARTITION: if (!disk->part[part-1]) return -ENXIO; - if (disk->part[part - 1]->nr_sects == 0) - return -ENXIO; bdevp = bdget_disk(disk, part); if (!bdevp) return -ENOMEM; diff --git a/fs/partitions/check.c b/fs/partitions/check.c index ecc3330972e5..68f3e41ae66f 100644 --- a/fs/partitions/check.c +++ b/fs/partitions/check.c @@ -325,8 +325,6 @@ void delete_partition(struct gendisk *disk, int part) if (!p) return; - if (!p->nr_sects) - return; disk->part[part-1] = NULL; p->start_sect = 0; p->nr_sects = 0; -- 2.30.2