aboutsummaryrefslogtreecommitdiffstats
path: root/fs/btrfs/tests (follow)
AgeCommit message (Collapse)AuthorFilesLines
2019-09-24Btrfs: fix selftests failure due to uninitialized i_mode in test inodesFilipe Manana1-1/+7
Some of the self tests create a test inode, setup some extents and then do calls to btrfs_get_extent() to test that the corresponding extent maps exist and are correct. However btrfs_get_extent(), since the 5.2 merge window, now errors out when it finds a regular or prealloc extent for an inode that does not correspond to a regular file (its ->i_mode is not S_IFREG). This causes the self tests to fail sometimes, specially when KASAN, slub_debug and page poisoning are enabled: $ modprobe btrfs modprobe: ERROR: could not insert 'btrfs': Invalid argument $ dmesg [ 9414.691648] Btrfs loaded, crc32c=crc32c-intel, debug=on, assert=on, integrity-checker=on, ref-verify=on [ 9414.692655] BTRFS: selftest: sectorsize: 4096 nodesize: 4096 [ 9414.692658] BTRFS: selftest: running btrfs free space cache tests [ 9414.692918] BTRFS: selftest: running extent only tests [ 9414.693061] BTRFS: selftest: running bitmap only tests [ 9414.693366] BTRFS: selftest: running bitmap and extent tests [ 9414.696455] BTRFS: selftest: running space stealing from bitmap to extent tests [ 9414.697131] BTRFS: selftest: running extent buffer operation tests [ 9414.697133] BTRFS: selftest: running btrfs_split_item tests [ 9414.697564] BTRFS: selftest: running extent I/O tests [ 9414.697583] BTRFS: selftest: running find delalloc tests [ 9415.081125] BTRFS: selftest: running find_first_clear_extent_bit test [ 9415.081278] BTRFS: selftest: running extent buffer bitmap tests [ 9415.124192] BTRFS: selftest: running inode tests [ 9415.124195] BTRFS: selftest: running btrfs_get_extent tests [ 9415.127909] BTRFS: selftest: running hole first btrfs_get_extent test [ 9415.128343] BTRFS critical (device (efault)): regular/prealloc extent found for non-regular inode 256 [ 9415.131428] BTRFS: selftest: fs/btrfs/tests/inode-tests.c:904 expected a real extent, got 0 This happens because the test inodes are created without ever initializing the i_mode field of the inode, and neither VFS's new_inode() nor the btrfs callback btrfs_alloc_inode() initialize the i_mode. Initialization of the i_mode is done through the various callbacks used by the VFS to create new inodes (regular files, directories, symlinks, tmpfiles, etc), which all call btrfs_new_inode() which in turn calls inode_init_owner(), which sets the inode's i_mode. Since the tests only uses new_inode() to create the test inodes, the i_mode was never initialized. This always happens on a VM I used with kasan, slub_debug and many other debug facilities enabled. It also happened to someone who reported this on bugzilla (on a 5.3-rc). Fix this by setting i_mode to S_IFREG at btrfs_new_test_inode(). Fixes: 6bf9e4bd6a2778 ("btrfs: inode: Verify inode mode to avoid NULL pointer dereference") Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204397 Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-09-09btrfs: stop clearing EXTENT_DIRTY in inode I/O treeOmar Sandoval1-8/+4
Since commit fee187d9d9dd ("Btrfs: do not set EXTENT_DIRTY along with EXTENT_DELALLOC"), we never set EXTENT_DIRTY in inode->io_tree, so we can simplify and stop trying to clear it. Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Omar Sandoval <osandov@fb.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-09-09Btrfs: make test_find_first_clear_extent_bit fail on incorrect resultsFilipe Manana1-7/+22
If any call to find_first_clear_extent_bit() returns an unexpected result, the test should fail and not just print an error message, otherwise it makes detection of regressions much harder to notice. Fixes: 1eaebb341d2b41 ("btrfs: Don't trim returned range based on input value in find_first_clear_extent_bit") Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-09-09Btrfs: fix memory leaks in the test test_find_first_clear_extent_bitFilipe Manana1-0/+2
The test creates an extent io tree and sets several ranges with the CHUNK_ALLOCATED and CHUNK_TRIMMED bits, resulting in the allocation of several extent state structures. However the test never clears those ranges, resulting in memory leaks of the extent state structures. This is detected when CONFIG_BTRFS_DEBUG is set once we remove the btrfs module (rmmod btrfs): [57399.787918] BTRFS: state leak: start 67108864 end 75497471 state 1 in tree 1 refs 1 [57399.790155] BTRFS: state leak: start 33554432 end 67108863 state 33 in tree 1 refs 1 [57399.791941] BTRFS: state leak: start 1048576 end 4194303 state 33 in tree 1 refs 1 [57399.793753] BTRFS: state leak: start 67108864 end 75497471 state 1 in tree 1 refs 1 [57399.795188] BTRFS: state leak: start 33554432 end 67108863 state 33 in tree 1 refs 1 [57399.796453] BTRFS: state leak: start 1048576 end 4194303 state 33 in tree 1 refs 1 [57399.797765] BTRFS: state leak: start 67108864 end 75497471 state 1 in tree 1 refs 1 [57399.799049] BTRFS: state leak: start 33554432 end 67108863 state 33 in tree 1 refs 1 [57399.800142] BTRFS: state leak: start 1048576 end 4194303 state 33 in tree 1 refs 1 [57399.801126] BTRFS: state leak: start 67108864 end 75497471 state 1 in tree 1 refs 1 [57399.802106] BTRFS: state leak: start 33554432 end 67108863 state 33 in tree 1 refs 1 [57399.803119] BTRFS: state leak: start 1048576 end 4194303 state 33 in tree 1 refs 1 [57399.804153] BTRFS: state leak: start 67108864 end 75497471 state 1 in tree 1 refs 1 [57399.805196] BTRFS: state leak: start 33554432 end 67108863 state 33 in tree 1 refs 1 [57399.806191] BTRFS: state leak: start 1048576 end 4194303 state 33 in tree 1 refs 1 The start and end offsets reported correspond exactly to the ranges used by the test. So fix that by clearing all the ranges when the test finishes. Fixes: 1eaebb341d2b41 ("btrfs: Don't trim returned range based on input value in find_first_clear_extent_bit") Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-09-09btrfs: move basic block_group definitions to their own headerJosef Bacik3-0/+3
This is prep work for moving all of the block group cache code into its own file. Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> [ minor comment updates ] Signed-off-by: David Sterba <dsterba@suse.com>
2019-09-09btrfs: Remove leftover of in-band dedupeNikolay Borisov1-6/+6
It's unlikely in-band dedupe is going to land so just remove any leftovers - dedupe.h header as well as the 'dedupe' parameter to btrfs_set_extent_delalloc. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-07-19Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds1-6/+9
Pull vfs mount updates from Al Viro: "The first part of mount updates. Convert filesystems to use the new mount API" * 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits) mnt_init(): call shmem_init() unconditionally constify ksys_mount() string arguments don't bother with registering rootfs init_rootfs(): don't bother with init_ramfs_fs() vfs: Convert smackfs to use the new mount API vfs: Convert selinuxfs to use the new mount API vfs: Convert securityfs to use the new mount API vfs: Convert apparmorfs to use the new mount API vfs: Convert openpromfs to use the new mount API vfs: Convert xenfs to use the new mount API vfs: Convert gadgetfs to use the new mount API vfs: Convert oprofilefs to use the new mount API vfs: Convert ibmasmfs to use the new mount API vfs: Convert qib_fs/ipathfs to use the new mount API vfs: Convert efivarfs to use the new mount API vfs: Convert configfs to use the new mount API vfs: Convert binfmt_misc to use the new mount API convenience helper: get_tree_single() convenience helper get_tree_nodev() vfs: Kill sget_userns() ...
2019-07-04btrfs: Evaluate io_tree in find_lock_delalloc_range()Goldwyn Rodrigues1-14/+16
Simplification. No point passing the tree variable when it can be evaluated from inode. The tests now use the io_tree from btrfs_inode as opposed to creating one. Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-07-01btrfs: tests: add locks around add_extent_mappingDavid Sterba1-0/+22
There are no concerns about locking during the selftests so the locks are not necessary, but following patches will add lockdep assertions to add_extent_mapping so this is needed in tests too. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-07-01btrfs: Don't trim returned range based on input value in find_first_clear_extent_bitNikolay Borisov1-0/+87
Currently find_first_clear_extent_bit always returns a range whose starting value is >= passed 'start'. This implicit trimming behavior is somewhat subtle and an implementation detail. Instead, this patch modifies the function such that now it always returns the range which contains passed 'start' and has the given bits unset. This range could either be due to presence of existing records which contains 'start' but have the bits unset or because there are no records that contain the given starting offset. This patch also adds test cases which cover find_first_clear_extent_bit since they were missing up until now. Reviewed-by: Qu Wenruo <wqu@suse.com> Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-05-25vfs: Convert btrfs_test to use the new mount APIDavid Howells1-6/+9
Convert the btrfs_test filesystem to the new internal mount API as the old one will be obsoleted and removed. This allows greater flexibility in communication of mount parameters between userspace, the VFS and the filesystem. See Documentation/filesystems/mount_api.txt for more information. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: David Sterba <dsterba@suse.com> cc: Chris Mason <clm@fb.com> cc: Josef Bacik <josef@toxicpanda.com> cc: linux-btrfs@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2019-05-25mount_pseudo(): drop 'name' argument, switch to d_make_root()Al Viro1-1/+1
Once upon a time we used to set ->d_name of e.g. pipefs root so that d_path() on pipes would work. These days it's completely pointless - dentries of pipes are not even connected to pipefs root. However, mount_pseudo() had set the root dentry name (passed as the second argument) and callers kept inventing names to pass to it. Including those that didn't *have* any non-root dentries to start with... All of that had been pointless for about 8 years now; it's time to get rid of that cargo-culting... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2019-05-07Merge tag 'for-5.2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linuxLinus Torvalds9-120/+249
Pull btrfs updates from David Sterba: "This time the majority of changes are cleanups, though there's still a number of changes of user interest. User visible changes: - better read time and write checks to catch errors early and before writing data to disk (to catch potential memory corruption on data that get checksummed) - qgroups + metadata relocation: last speed up patch int the series to address the slowness, there should be no overhead comparing balance with and without qgroups - FIEMAP ioctl does not start a transaction unnecessarily, this can result in a speed up and less blocking due to IO - LOGICAL_INO (v1, v2) does not start transaction unnecessarily, this can speed up the mentioned ioctl and scrub as well - fsync on files with many (but not too many) hardlinks is faster, finer decision if the links should be fsynced individually or completely - send tries harder to find ranges to clone - trim/discard will skip unallocated chunks that haven't been touched since the last mount Fixes: - send flushes delayed allocation before start, otherwise it could miss some changes in case of a very recent rw->ro switch of a subvolume - fix fallocate with qgroups that could lead to space accounting underflow, reported as a warning - trim/discard ioctl honours the requested range - starting send and dedupe on a subvolume at the same time will let only one of them succeed, this is to prevent changes that send could miss due to dedupe; both operations are restartable Core changes: - more tree-checker validations, errors reported by fuzzing tools: - device item - inode item - block group profiles - tracepoints for extent buffer locking - async cow preallocates memory to avoid errors happening too deep in the call chain - metadata reservations for delalloc reworked to better adapt in many-writers/low-space scenarios - improved space flushing logic for intense DIO vs buffered workloads - lots of cleanups - removed unused struct members - redundant argument removal - properties and xattrs - extent buffer locking - selftests - use common file type conversions - many-argument functions reduction" * tag 'for-5.2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (227 commits) btrfs: Use kvmalloc for allocating compressed path context btrfs: Factor out common extent locking code in submit_compressed_extents btrfs: Set io_tree only once in submit_compressed_extents btrfs: Replace clear_extent_bit with unlock_extent btrfs: Make compress_file_range take only struct async_chunk btrfs: Remove fs_info from struct async_chunk btrfs: Rename async_cow to async_chunk btrfs: Preallocate chunks in cow_file_range_async btrfs: reserve delalloc metadata differently btrfs: track DIO bytes in flight btrfs: merge calls of btrfs_setxattr and btrfs_setxattr_trans in btrfs_set_prop btrfs: delete unused function btrfs_set_prop_trans btrfs: start transaction in xattr_handler_set_prop btrfs: drop local copy of inode i_mode btrfs: drop old_fsflags in btrfs_ioctl_setflags btrfs: modify local copy of btrfs_inode flags btrfs: drop useless inode i_flags copy and restore btrfs: start transaction in btrfs_ioctl_setflags() btrfs: export btrfs_set_prop btrfs: refactor btrfs_set_props to validate externally ...
2019-04-29btrfs: get fs_info from block group in search_free_space_infoDavid Sterba1-2/+2
We can read fs_info from the block group cache structure and can drop it from the parameters. Though the transaction is also availabe, it's not guaranteed to be non-NULL. Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: inode: Verify inode mode to avoid NULL pointer dereferenceQu Wenruo1-0/+1
[BUG] When accessing a file on a crafted image, btrfs can crash in block layer: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 PGD 136501067 P4D 136501067 PUD 124519067 PMD 0 CPU: 3 PID: 0 Comm: swapper/3 Not tainted 5.0.0-rc8-default #252 RIP: 0010:end_bio_extent_readpage+0x144/0x700 Call Trace: <IRQ> blk_update_request+0x8f/0x350 blk_mq_end_request+0x1a/0x120 blk_done_softirq+0x99/0xc0 __do_softirq+0xc7/0x467 irq_exit+0xd1/0xe0 call_function_single_interrupt+0xf/0x20 </IRQ> RIP: 0010:default_idle+0x1e/0x170 [CAUSE] The crafted image has a tricky corruption, the INODE_ITEM has a different type against its parent dir: item 20 key (268 INODE_ITEM 0) itemoff 2808 itemsize 160 generation 13 transid 13 size 1048576 nbytes 1048576 block group 0 mode 121644 links 1 uid 0 gid 0 rdev 0 sequence 9 flags 0x0(none) This mode number 0120000 means it's a symlink. But the dir item think it's still a regular file: item 8 key (264 DIR_INDEX 5) itemoff 3707 itemsize 32 location key (268 INODE_ITEM 0) type FILE transid 13 data_len 0 name_len 2 name: f4 item 40 key (264 DIR_ITEM 51821248) itemoff 1573 itemsize 32 location key (268 INODE_ITEM 0) type FILE transid 13 data_len 0 name_len 2 name: f4 For symlink, we don't set BTRFS_I(inode)->io_tree.ops and leave it empty, as symlink is only designed to have inlined extent, all handled by tree block read. Thus no need to trigger btrfs_submit_bio_hook() for inline file extent. However end_bio_extent_readpage() expects tree->ops populated, as it's reading regular data extent. This causes NULL pointer dereference. [FIX] This patch fixes the problem in two ways: - Verify inode mode against its dir item when looking up inode So in btrfs_lookup_dentry() if we find inode mode mismatch with dir item, we error out so that corrupted inode will not be accessed. - Verify inode mode when getting extent mapping Only regular file should have regular or preallocated extent. If we found regular/preallocated file extent for symlink or the rest, we error out before submitting the read bio. With this fix that crafted image can be rejected gracefully: BTRFS critical (device loop0): inode mode mismatch with dir: inode mode=0121644 btrfs type=7 dir type=1 Reported-by: Yoon Jungyeon <jungyeon@gatech.edu> Link: https://bugzilla.kernel.org/show_bug.cgi?id=202763 Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: qgroup: remove obsolete fs_info membersDavid Sterba1-1/+0
The commit fcebe4562dec ("Btrfs: rework qgroup accounting") reworked qgroups and added some new structures. Another rework of qgroup mechanics e69bcee37692 ("btrfs: qgroup: Cleanup the old ref_node-oriented mechanism.") stopped using them and left uncleaned. Reviewed-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: unify messages when tests startDavid Sterba3-6/+11
- make the messages more visually consistent and use same format "running ... test", any error or other warning can be easily spotted - move some message to the test entry function - add message to the inode tests Example output: [ 8.187391] Btrfs loaded, crc32c=crc32c-generic, assert=on, integrity-checker=on, ref-verify=on [ 8.189476] BTRFS: selftest: sectorsize: 4096 nodesize: 4096 [ 8.190761] BTRFS: selftest: running btrfs free space cache tests [ 8.192245] BTRFS: selftest: running extent only tests [ 8.193573] BTRFS: selftest: running bitmap only tests [ 8.194876] BTRFS: selftest: running bitmap and extent tests [ 8.196166] BTRFS: selftest: running space stealing from bitmap to extent tests [ 8.198026] BTRFS: selftest: running extent buffer operation tests [ 8.199328] BTRFS: selftest: running btrfs_split_item tests [ 8.200653] BTRFS: selftest: running extent I/O tests [ 8.201808] BTRFS: selftest: running find delalloc tests [ 8.320733] BTRFS: selftest: running extent buffer bitmap tests [ 8.340795] BTRFS: selftest: running inode tests [ 8.341766] BTRFS: selftest: running btrfs_get_extent tests [ 8.342981] BTRFS: selftest: running hole first btrfs_get_extent test [ 8.344342] BTRFS: selftest: running outstanding_extents tests [ 8.345575] BTRFS: selftest: running qgroup tests [ 8.346537] BTRFS: selftest: running qgroup add/remove tests [ 8.347725] BTRFS: selftest: running qgroup multiple refs test [ 8.354982] BTRFS: selftest: running free space tree tests [ 8.372175] BTRFS: selftest: sectorsize: 4096 nodesize: 8192 [ 8.373539] BTRFS: selftest: running btrfs free space cache tests [ 8.374989] BTRFS: selftest: running extent only tests [ 8.376236] BTRFS: selftest: running bitmap only tests [ 8.377483] BTRFS: selftest: running bitmap and extent tests [ 8.378854] BTRFS: selftest: running space stealing from bitmap to extent tests ... Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: drop messages when some tests finishDavid Sterba2-2/+0
The messages like 'extent I/O tests finished' are redundant, if the test fails it's quite obvious in the log and hang is also noticeable. No other then extent_io and free space tree tests print that so make it consistent. Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: fix comments about tested extent map rangesDavid Sterba1-2/+2
Comments about ranges did not match the code, the correct calculation is to use start and start+len as the interval boundaries. Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: use SZ_ constants everywhereDavid Sterba1-3/+3
There are a few unconverted constants that are not powers of two and haven't been converted. Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: use standard error message after extent map allocation failureDavid Sterba1-4/+19
Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: return error from all extent map test casesDavid Sterba1-12/+32
The way the extent map tests handle errors does not conform to the rest of the suite, where the first failure is reported and then it stops. Do the same now that we have the errors returned from all the functions. Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: return errors from extent map test case 4David Sterba1-7/+14
Replace asserts with error messages and return errors. Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: return errors from extent map test case 3David Sterba1-5/+10
Replace asserts with error messages and return errors. Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: return errors from extent map test case 2David Sterba1-6/+14
Replace asserts with error messages and return errors. Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: return errors from extent map test case 1David Sterba1-6/+14
Replace asserts with error messages and return errors. Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: return errors from extent map testsDavid Sterba1-22/+46
The individual testcases for extent maps do not return an error on allocation failures. This is not a big problem as the allocation don't fail in general but there are functional tests handled with ASSERTS. This makes tests dependent on them and it's not reliable. This patch adds the allocation failure handling and allows for the conversion of the asserts to proper error handling and reporting. Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: properly initialize fs_info of extent bufferDavid Sterba1-1/+1
The fs_info is supposed to be valid, even though it's not used right now and the test does not crash. Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: use standard error message after block group allocation failureDavid Sterba2-2/+2
Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: use standard error message after inode allocation failureDavid Sterba2-4/+4
Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: use standard error message after path allocation failureDavid Sterba3-6/+6
Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: use standard error message after extent buffer allocation failureDavid Sterba4-6/+6
Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: use standard error message after root allocation failureDavid Sterba5-8/+9
Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: use standard error message after fs_info allocation failureDavid Sterba7-10/+11
Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: add table of most common errorsDavid Sterba2-0/+24
Allocation of main objects like fs_info or extent buffers is in each test so let's simplify and unify the error messages to a table and add a convenience helper. Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: print file:line for error messagesDavid Sterba1-1/+2
For better diagnostics print the file name and line to locate the errors. Sample output: [ 9.052924] BTRFS: selftest: fs/btrfs/tests/extent-io-tests.c:283 offset bits do not match Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: don't leak fs_info in extent_io bitmap testsDavid Sterba1-7/+9
The fs_info is not freed at the end of the function and leaks. The function is called twice so there can be up to 2x sizeof(struct btrfs_fs_info) of leaked memory. Fortunatelly this affects only testing builds, the size could be 16k with several debugging features enabled. Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: tests: handle fs_info allocation failure in extent_io testsDavid Sterba1-0/+4
Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: Introduce extent_io_tree::owner to distinguish different io_treesQu Wenruo2-3/+9
Btrfs has the following different extent_io_trees used: - fs_info::free_extents[2] - btrfs_inode::io_tree - for both normal inodes and the btree inode - btrfs_inode::io_failure_tree - btrfs_transaction::dirty_pages - btrfs_root::dirty_log_pages If we want to trace changes in those trees, it will be pretty hard to distinguish them. Instead of using hard-to-read pointer address, this patch will introduce a new member extent_io_tree::owner to track the owner. This modification needs all the callers of extent_io_tree_init() to accept a new parameter @owner. This patch provides the basis for later trace events. Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-29btrfs: Introduce fs_info to extent_io_treeQu Wenruo2-3/+3
This patch will add a new member fs_info to extent_io_tree. This provides the basis for later trace events to distinguish the output between different btrfs filesystems. While this increases the size of the structure, we want to know the source of the trace events and passing the fs_info as an argument to all contexts is not possible. The selftests are now allowed to set it to NULL as they don't use the tracepoints. Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-09treewide: Switch printk users from %pf and %pF to %ps and %pS, respectivelySakari Ailus1-2/+2
%pF and %pf are functionally equivalent to %pS and %ps conversion specifiers. The former are deprecated, therefore switch the current users to use the preferred variant. The changes have been produced by the following command: git grep -l '%p[fF]' | grep -v '^\(tools\|Documentation\)/' | \ while read i; do perl -i -pe 's/%pf/%ps/g; s/%pF/%pS/g;' $i; done And verifying the result. Link: http://lkml.kernel.org/r/20190325193229.23390-1-sakari.ailus@linux.intel.com Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: linux-arm-kernel@lists.infradead.org Cc: sparclinux@vger.kernel.org Cc: linux-um@lists.infradead.org Cc: xen-devel@lists.xenproject.org Cc: linux-acpi@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: drbd-dev@lists.linbit.com Cc: linux-block@vger.kernel.org Cc: linux-mmc@vger.kernel.org Cc: linux-nvdimm@lists.01.org Cc: linux-pci@vger.kernel.org Cc: linux-scsi@vger.kernel.org Cc: linux-btrfs@vger.kernel.org Cc: linux-f2fs-devel@lists.sourceforge.net Cc: linux-mm@kvack.org Cc: ceph-devel@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: David Sterba <dsterba@suse.com> (for btrfs) Acked-by: Mike Rapoport <rppt@linux.ibm.com> (for mm/memblock.c) Acked-by: Bjorn Helgaas <bhelgaas@google.com> (for drivers/pci) Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2018-12-17btrfs: remove always true if branch in find_delalloc_rangeLu Fengqi1-1/+1
The @found is always false when it comes to the if branch. Besides, the bool type is more suitable for @found. Change the return value of the function and its caller to bool as well. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2018-12-17btrfs: use EXPORT_FOR_TESTS for conditionally exported functionsJohannes Thumshirn1-5/+5
Several functions in BTRFS are only used inside the source file they are declared if CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not defined. However if CONFIG_BTRFS_FS_RUN_SANITY_TESTS is defined these functions are shared with the unit tests code. Before the introduction of the EXPORT_FOR_TESTS macro, these functions could not be declared as static and the compiler had a harder task when optimizing and inlining them. As we have EXPORT_FOR_TESTS now, use it where appropriate to support the compiler. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2018-12-17btrfs: Sink find_lock_delalloc_range's 'max_bytes' argumentNikolay Borisov1-5/+5
All callers of this function pass BTRFS_MAX_EXTENT_SIZE (128M) so let's reduce the argument count and make that a local variable. No functional changes. Reviewed-by: Qu Wenruo <wqu@suse.com> Reviewed-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2018-12-17btrfs: Adjust loop in free_extent_bufferNikolay Borisov2-8/+0
The loop construct in free_extent_buffer was added in 242e18c7c1a8 ("Btrfs: reduce lock contention on extent buffer locks") as means of reducing the times the eb lock is taken, the non-last ref count is decremented and lock is released. As the special handling of UNMAPPED extent buffers was removed now there is only one decrement op which is happening for EXTENT_BUFFER_UNMAPPED case. This commit modifies the loop condition so that in case of UNMAPPED buffers the eb's lock is taken only if we are 100% sure the eb is going to be freed by the current executor of the code. Additionally, remove superfluous ref count ops in btrfs test. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2018-12-17btrfs: Remove special handling of EXTENT_BUFFER_UNMAPPED while freeingNikolay Borisov1-1/+5
Now that the whole of btrfs code has been audited for eb reference count management it's time to remove the hunk in free_extent_buffer that essentially considered the condition "eb->ref == 2 && EXTENT_BUFFER_DUMMY" to equal "eb->ref = 1". Also remove the last location which takes an extra reference count in alloc_test_extent_buffer. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2018-12-17btrfs: tests: Use BTRFS_MAX_EXTENT_SIZE to replace the intermediate numberQu Wenruo1-2/+3
In extent-io self test, we need 2 ordered extents at its maximum size to do the test. Instead of using the intermediate numbers, use BTRFS_MAX_EXTENT_SIZE for @max_bytes, and twice @max_bytes for @total_dirty. This should explain why we need all these magic numbers and prevent people to modify them by accident. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2018-12-17btrfs: Remove extent_io_ops::set_bit_hook extent_io callbackNikolay Borisov1-1/+1
This callback is used to properly account delalloc extents for data inodes (ordinary file inodes and freespace v1 inodes). Those can be easily identified since they have their extent_io trees ->private_data member point to the inode. Let's exploit this fact to remove the needless indirection through extent_io_hooks and directly call the function. Also give the function a name which reflects its purpose - btrfs_set_delalloc_extent. This patch also modified test_find_delalloc so that the extent_io_tree used for testing doesn't have its ->private_data set which would have caused a crash in btrfs_set_delalloc_extent due to the btrfs_inode->root member not being initialised. The old version of the code also didn't call set_bit_hook since the extent_io ops weren't set for the inode. No functional changes. Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2018-10-15btrfs: tests: add separate stub for find_lock_delalloc_rangeDavid Sterba1-5/+5
The helper find_lock_delalloc_range is now conditionally built static, dpending on whether the self-tests are enabled or not. There's a macro that is supposed to hide the export, used only once. To discourage further use, drop it an add a public wrapper for the helper needed by tests. Reviewed-by: Omar Sandoval <osandov@fb.com> Signed-off-by: David Sterba <dsterba@suse.com>
2018-10-15Btrfs: extent_map: use rb_first_cachedLiu Bo1-2/+2
rb_first_cached() trades an extra pointer "leftmost" for doing the same job as rb_first() but in O(1). As evict_inode_truncate_pages() removes all extent mapping by always looking for the first rb entry, it's helpful to use rb_first_cached instead. For more details about the optimization see patch "Btrfs: delayed-refs: use rb_first_cached for href_root". Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com> Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.