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Btrfs: self-tests: Fix test_bitmaps fail on 64k sectorsize 

With 64K sectorsize, 1G sized block group cannot span across bitmaps.
To execute test_bitmaps() function, this commit allocates
"BITS_PER_BITMAP * sectorsize + PAGE_SIZE" sized block group.

Reviewed-by: Josef Bacik <jbacik@fb.com>
Reviewed-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: Feifei Xu <xufeifei@linux.vnet.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Feifei Xu 2016-06-01 19:18:29 +08:00 committed by David Sterba
parent ef9f2db365
commit 36b3dc05b4
1 changed files with 7 additions and 1 deletions
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8
fs/btrfs/tests/free-space-tests.c
View File

@ -843,7 +843,13 @@ int btrfs_test_free_space_cache(u32 sectorsize, u32 nodesize)
test_msg("Running btrfs free space cache tests\n");
cache = btrfs_alloc_dummy_block_group(1024 * 1024 * 1024, sectorsize);
/*
* For ppc64 (with 64k page size), bytes per bitmap might be
* larger than 1G. To make bitmap test available in ppc64,
* alloc dummy block group whose size cross bitmaps.
*/
cache = btrfs_alloc_dummy_block_group(BITS_PER_BITMAP * sectorsize
+ PAGE_SIZE, sectorsize);
if (!cache) {
test_msg("Couldn't run the tests\n");
return 0;