The testcase tests 2 corner cases:
Length is zero
Length is smaller than block size
Correct the beginning description by changing "of" to "or".
Signed-off-by: Wang Sheng-Hui <shhuiw@foxmail.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
generic/019 was failing with:
./tests/generic/019: line 65: /sys/block/pmem0p2/make-it-fail: No such file or directory
When using a partition, the file needed is located at
/sys/block/pmem0/pmem0p2/make-it-fail.
Rather than attempt to deduce whether a block device is a partition
or not, use the symlinks located in /sys/dev/block/ to find the right
location for the make-it-fail file.
Also change btrfs/088 to use the new _sysfs_dev function.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
There was some confused about what the fs was supposed to do when you truncate
at i_size with preallocated space past i_size. We decided on the following
things
1) truncate(i_size) will trim all blocks past i_size.
2) truncate(x) where x > i_size will not trim all blocks past i_size.
This test is to make sure we're all acting sanely. Thanks,
Signed-off-by: Josef Bacik <jbacik@fb.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Check if setting the file access and modification times to the current time
and to a specific timestamp is allowed when expected.
In generic/126, remove a left-over temporary file.
Signed-off-by: Andreas Gruenbacher <andreas.gruenbacher@gmail.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
When a large IO is done as a single buffer, there is no guarantee
that it will partially succeed when close to ENOSPC. The test
assumes that the kernel is going to break the write down into
smaller chunks (i.e. buffered IO breaking it down into PAGE_SIZE
allocations), but certain configurations will not do this. e.g.
extent size hints are set or DAX is being used) and hence the large
write fails completely as there is not space for the entire
allocation to be made.
Hence break the final write in the test up into multiple small
writes, thereby acheiving the same effect - ensuring that we can
write more data after removing some space....
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
On certain configurations (e.g. MOUNT_OPTIONS="-o dax") we get
different allocation patterns due to the writes being done in
multiple pwrite() calls. e.g. the write is 8k, but the buffer size
is 4k, and so the filesystem sees 4k writes. If the filesytem is not
using delayed allocation, then the allocation context is a 4k write
rather than an 8k write and so they don't get appropriately aligned.
Fix this by making the write buffer the same size and the writes
being done.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
The test currently uses 'dd' directly for writing to files; instead
we should be using the xfs_io pwrite command.
Also, when we have a configuration that does not do delayed
allocation (e.g. dax), there is no guarantee that the files will be
allocated in the pattern expected, so do all the writes from a
single buffer so the kernel can allocate extents in the manner the
test expects as much as possible.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
On v4/512b and v5/1k xfs, there're not enough free inodes for new files
and generic/204 fails because of running out of inode not space.
Adding "-i maxpct=50" to MKFS_OPTIONS to bump up the inode limit at mkfs
time, and test could pass on all configurations.
Suggested-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
generic tests 039, 059 and 325 need _require_metadata_journaling too,
they use dm_flakey to trigger log replay. I've seen 039 and 059 failed
post-test fsck on ext2, 325 could possibly fail too.
Signed-off-by: Eryu Guan <eguan@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This test exercises the problem with unwritten and delayed extents
in ext4 extent status tree where we might in some cases lose a block
worth of data. Even though this was a ext4 specific problem the
reproducer can be easily run on any file system so let's do that just
in case.
This test exercises the problem fixed in kernel with commit
"ext4: Fix data corruption caused by unwritten and delayed extents"
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Exercise fs freeze/unfreeze and mount/umount race, which could lead to
use-after-free oops.
This commit fixed the issue:
1494583 fix get_active_super()/umount() race
This test case is based on a script from Monakhov Dmitriy.
Signed-off-by: Eryu Guan <eguan@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Kernel commit
aae8a97 fs: Don't allow to create hardlink for deleted file
disabled hardlink to unlinked file.
Test the race between link and unlink, which could end up adding link
count to an unlinked file and leading to fs corruption on xfs.
Test case was originally written by Eric Sandeen.
Signed-off-by: Eryu Guan <eguan@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Remount ro should not turn qouta off unconditionally, even remount ro
failed, also kernel should not oops on the next succeeded remount ro.
Signed-off-by: Eryu Guan <eguan@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
The "brd" kernel ram disk abuses BLKFLSBUF to mean "free all memory
in the ram drive" when in fact it should mean "flush all dirty
buffers to stable storage". The brd driver ignores BLKFLSBUF if
there is an active reference to the block device, (e.g. a fs is
mounted on it), but when a device is layered over the top of it
(e.g. dm-flakey, lvm devices, etc) then the applications and
filesystems hold references to the upper device, not the brd device.
Hence when the upper device passes down BLKFLSBUF to brd, it removes
all the pages in the brd, effectively erasing it. This causes all
sorts of problems.....
Fix this by black listing "/dev/ramXXX" devices from tests that
require DM in some way. The _requires_sane_bdev_flush() macro is
called by the _requires_dm.... checks so that we don't have to
remember to add this to all new tests that use dm in some way.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Full DM snapshot devices can return unexpected errors from the
underlying device, and this causes problems for filesystems. In
particular, xfs used to panic in this test, (fixed by commit 8d6c121
"xfs: fix buffer use after free on IO error"), and on current
4.0-rc3 kernels both ext4 and btrfs trigger WARNINGs.
Signed-off-by: Eryu Guan <eguan@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
When using mmap() for file i/o, writing to the file should update
it's c/mtime. Specifically if we first mmap-read from a page, then
memap-write to the same page.
This test was failing for the initial submission of DAX because
pfn based mapping do not have an page_mkwrite called for them.
The new Kernel patches that introduce pfn_mkwrite fixes this test.
Test adapted from a script originally written by Dave Chinner.
Signed-off-by: Omer Zilberberg <omzg@plexistor.com>
Signed-off-by: Boaz Harrosh <boaz@plexistor.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
5e8b9e6 btrfs: add regression test for remount with thread_pool resized
did weird things to _filter_mkfs; aside from broken indentation,
it also short-circuited the default non-xfs behavior, which was to
emit a default block & inode size. And that was all because btrfs/082
was using _filter_mkfs & not redirecting output away as per normal.
Granted, it's not super clear that _filter_mkfs serves this rather
unique purpose, but anyway...
And, while having this default seems to be of questionable value,
not emitting *anything* led to this on btrfs:
+./tests/generic/204: line 76: space / (isize + dbsize): division by 0 (error token is ")")
because those variables don't get set for btrfs, thanks to the
above commit.
So take out the use of _filter_mkfs in btrfs/082, and take out the
munging of _filter_mkfs which broke generic/204, and get things back
to something semi-sane.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Test file A fsync after moving one other unrelated file B between
directories and fsyncing B's old parent directory before fsyncing
the file A. Check that after a crash all the file A data we fsynced
is available.
This test is motivated by an issue discovered in btrfs which caused
the file data to be lost (despite fsync returning success to user
space). That btrfs bug is fixed by the following linux kernel patch:
Btrfs: fix data loss in the fast fsync path
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This case tests truncate/collapse range race. If the race occurs, it
will trigger a BUG_ON(). And this kernel patch has fixed this race:
23fffa9 fs: move falloc collapse range check into the filesystem methods
Signed-off-by: Xiaoguang Wang <wangxg.fnst@cn.fujitsu.com>
Signed-off-by: Xing Gu <gux.fnst@cn.fujitsu.com>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
There're six test cases:
- mount at a nonexistent mount point
- mount a free loop device
- mount with a wrong fs type
- umount an symlink to device which is not mounted
- umount a path with too long name
- lazy umount a symlink
Signed-off-by: Eryu Guan <eguan@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Test extent pre-allocation (using fallocate) into a region that already has a
pre-allocated extent that ends beyond the file's size. Verify that if the fs
is unmounted immediately after, the file's size and content are not lost.
This is motivated by a minor issue found in btrfs where the second fallocate
wouldn't update the inode's i_size on disk, fixed by the following btrfs
patch: "Btrfs: add missing inode item update in fallocate()".
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Wang Sheng-Hui
Matthew Wilcox
Josef Bacik
Andrew Price
Andreas Gruenbacher
Dave Chinner
Omer Zilberberg
Eryu Guan
Lukas Czerner
Eric Sandeen
Filipe Manana
Xiaoguang Wang