[LTP] Error with fs_fill

[Cyril Hrubis]

Hi!
> tst_mkfs.c:90: INFO: Formatting /dev/loop0 with btrfs opts='' extra opts=''
> tst_test.c:1250: INFO: Timeout per run is 0h 05m 00s
> fs_fill.c:103: INFO: Running 6 writer threads
>      tst_fill_fs.c:59: INFO: write(): ENOSPC (28)
> tst_fill_fs.c:59: INFO: write(): ENOSPC (28)
> fs_fill.c:53: INFO: Unlinking mntpoint/thread1/file0
> fs_fill.c:53: INFO: Unlinking mntpoint/thread5/file0
> tst_fill_fs.c:39: INFO: open(): ENOSPC (28)
> tst_fill_fs.c:39: INFO: open(): ENOSPC (28)
> tst_fill_fs.c:39: INFO: open(): ENOSPC (28)
> fs_fill.c:53: INFO: Unlinking mntpoint/thread4/file0
> fs_fill.c:53: INFO: Unlinking mntpoint/thread6/file0
> fs_fill.c:53: INFO: Unlinking mntpoint/thread2/file0
> safe_macros.c:366: BROK: fs_fill.c:55: unlink(mntpoint/thread4/file0) failed: ENOSPC (28)

This is a bug in Btrfs deallocation metadata reservation.

-- 
Cyril Hrubis
chrubis@suse.cz