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| author | Arne Jansen <sensille@gmx.net> | 2011-04-12 11:01:20 +0200 |
|---|---|---|
| committer | Arne Jansen <sensille@gmx.net> | 2011-05-13 15:36:12 +0200 |
| commit | a9c9bf68276c36898e23db770a65bd9b75bfac58 (patch) | |
| tree | ba18ea840825d8c2bc6199fda17bb44f52fb85c4 /fs | |
| parent | bcd53741cc2af4342ac3ff6983bddc4a1b63b9b4 (diff) | |
| download | linux-a9c9bf68276c36898e23db770a65bd9b75bfac58.tar.gz linux-a9c9bf68276c36898e23db770a65bd9b75bfac58.tar.bz2 linux-a9c9bf68276c36898e23db770a65bd9b75bfac58.zip | |
btrfs: heed alloc_start
currently alloc_start is disregarded if the requested
chunk size is bigger than (device size - alloc_start),
but smaller than the device size.
The only situation where I see this could have made sense
was when a chunk equal the size of the device has been
requested. This was possible as the allocator failed to
take alloc_start into account when calculating the request
chunk size. As this gets fixed by this patch, the workaround
is not necessary anymore.
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/volumes.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index a9f1fc23278b..45c592a7335e 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -849,10 +849,7 @@ int find_free_dev_extent(struct btrfs_trans_handle *trans, /* we don't want to overwrite the superblock on the drive, * so we make sure to start at an offset of at least 1MB */ - search_start = 1024 * 1024; - - if (root->fs_info->alloc_start + num_bytes <= search_end) - search_start = max(root->fs_info->alloc_start, search_start); + search_start = max(root->fs_info->alloc_start, 1024ull * 1024); max_hole_start = search_start; max_hole_size = 0; |