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* btrfs-progs: Refactor btrfs_read_sys_array/chunk_tree to use btrfs_fs_infoQu Wenruo2017-07-12
| | | | | Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Refactor write_all_supers and its callers to use btrfs_fs_infoQu Wenruo2017-07-12
| | | | | Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Refactor btrfs_readahead_tree_block to use btrfs_fs_infoQu Wenruo2017-07-12
| | | | | Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Refactor btrfs_find_tree_block to use btrfs_fs_infoQu Wenruo2017-07-12
| | | | | Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Refactor read_extent_data to use btrfs_fs_infoQu Wenruo2017-07-12
| | | | | Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Refactor write_tree_block to use btrfs_fs_infoQu Wenruo2017-07-12
| | | | | Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Refactor write_and_map_eb to use btrfs_fs_infoQu Wenruo2017-07-12
| | | | | Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Refactor csum_tree_block to use btrfs_fs_infoQu Wenruo2017-07-12
| | | | | Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Refactor btrfs_num_copies to use btrfs_fs_infoQu Wenruo2017-07-12
| | | | | Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Refactor btrfs_map_block and its variants to use btrfs_fs_infoQu Wenruo2017-07-12
| | | | | | | | | Just to keep the 1st paramter the same as kernel. We can also save a few lines since the parameter is shorter now. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Refactor read_tree_block to get rid of btrfs_rootQu Wenruo2017-07-03
| | | | | | | | | | | | | The only reasom read_tree_block() needs a btrfs_root parameter is to get its node/sector size. And long ago, I have already introduced a compactible interface, read_tree_block_fs_info() to pass btrfs_fs_info instead of btrfs_root. Since we have cleaned up all root->sector/node/stripesize users, we should be OK to refactor read_tree_block() function. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
* btrfs-progs: Remove block size members in btrfs_rootQu Wenruo2017-07-03
| | | | | | Finally, we can get rid of per tree block size members now. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
* btrfs-progs: Refactor block sizes users in disk-io.cQu Wenruo2017-07-03
| | | | | | | | | Since we have cached block sizes in fs_info, there is no need to specify these sizes in btrfs_setup_root() function. And refactor all root->sector/node/stripesize users in disk-io.c. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
* btrfs-progs: Introduce sectorsize nodesize and stripesize members forQu Wenruo2017-07-03
| | | | | | | | | | | | | btrfs_fs_info Just like what we do in kernel, since we will not support different leaf/node/stripe size per tree, there is no need to store these block sizes in btrfs_root. This patch will introduce these block size members into btrfs_fs_info structure, allowing us to convert such usage in later patches. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
* btrfs-progs: Remove deprecated leafsize usageQu Wenruo2017-07-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | Leafsize is deprecated for a long time, and kernel has already updated ctree.h to rename sb->leafsize to sb->__unused_leafsize. This patch will remove normal users of leafsize: 1) Remove leafsize member from btrfs_root structure Now only root->nodesize and root->sectorisze. No longer root->leafsize. 2) Remove @leafsize parameter from btrfs_setup_root() function Since no root->leafsize, no need for @leafsize parameter. The remaining user of leafsize will be: 1) btrfs inspect-internal dump-super Reformat the "leafsize" output to "leafsize (deprecated)" and use le32_to_cpu() to do the cast manually. 2) mkfs We still need to set sb->__unused_leafsize to nodesize. Do the manual cast too. 3) convert Same as mkfs, these two superblock setup should be merged later Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
* btrfs-progs: tests: Fix fuzz-test for bko-161821.raw.txtLu Fengqi2017-05-02
| | | | | | | | | | | | | | | | | | | | | | | Fuzzed image bko-161821.raw causes btrfs check to get segmentation fault. The function check_owner_ref attempts to access a non-exist quota tree when dealing with extent_item [4198400 4096] in the corrupted filesystem. The function btrfs_new_fs_info always allocates memory for fs_info->quota_root regardless of whether quota_tree exists or not. Additionally, the function btrfs_read_fs_root will directly return fs_info->quota_root if location->objectid == BTRFS_QUOTA_TREE_OBJECTID. This patch does the following things: 1. Do extra check and return ENOENT if quota tree does not exist in the function btrfs_read_fs_root. 2. Free useless fs_info->quota_root in the function btrfs_setup_all_roots to reduce confusion. 3. free_extent_buffer even if check_child_node failed in the function walk_down_tree. Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: report I/O errors when closing the filesystemOmar Sandoval2017-03-08
| | | | | | | | | | If the final fsync() on the Btrfs device fails, we just swallow the error and don't alert the user in any way. This was uncovered by xfstest generic/405, which checks that mkfs fails when it encounters EIO. Signed-off-by: Omar Sandoval <osandov@fb.com> Reviewed-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: remove unused function wait_on_tree_block_writebackDavid Sterba2017-03-08
| | | | | | | This used to be a kernel stub but has been removed from kernel long time ago. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: remove unused argument from write_and_map_ebDavid Sterba2017-03-08
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: remove unused argument from btrfs_csum_dataDavid Sterba2017-03-08
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: opencode trivial helper btrfs_free_transactionDavid Sterba2017-03-08
| | | | | | It also does not exist in kernel code. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Introduce kernel sizes to cleanup large intermediate numberQu Wenruo2017-03-08
| | | | | | | | | | | Large numbers like (1024 * 1024 * 1024) may cost reader/reviewer to waste one second to convert to 1G. Introduce kernel include/linux/sizes.h to replace any intermediate number larger than 4096 (not including 4096) to SZ_*. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: check: get the highest inode for lost+foundGoldwyn Rodrigues2017-01-25
| | | | | | | | | | | | | root->highest_inode is not accurate at the time of creating a lost+found and it fails because the highest_inode+1 is already present. This could be because of fixes after highest_inode is set. Instead, search for the highest inode in the tree and use it for lost+found. This makes root->highest_inode unnecessary and hence deleted. Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com> Reviewed-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: make incompat bit wrappers more compactDavid Sterba2016-12-14
| | | | | | Use the same macro tricks as in kernel code. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: add OPEN_CTREE_INVALIDATE_FST flagOmar Sandoval2016-11-23
| | | | | | | | | | If this flag is passed to open_ctree(), we'll clear the FREE_SPACE_TREE_VALID compat_ro bit. The kernel will then reconstruct the free space tree the next time the filesystem is mounted. Reviewed-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: rename btrfs_scan_lblkid() to btrfs_scan_devices()Karel Zak2016-10-25
| | | | | | | | | It seems like bad idea to use a library name (lblkid) within generic function name. The currently used scanning library is implementation detail and this detail should be hidden for rest of the code. Signed-off-by: Karel Zak <kzak@redhat.com> Signed-off-by: David Sterba <dsterba@suse.cz>
* btrfs-progs: fix printf format of sizeof on 32bit buildDavid Sterba2016-10-10
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: rename __setup_root and change to return voidDavid Sterba2016-10-05
| | | | | | Exported function should use a prefix. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: more sanity checks in read_tree_block_fs_infoDavid Sterba2016-10-03
| | | | | | | | | If blocksize is 0, it passes the IS_ALIGNED check but fails later as the length of ebs will be zero. Reported-by: Lukas Lueg <lukas.lueg@gmail.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=169311 Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Remove unnecessary parameter to clear_extent_uptodateQu Wenruo2016-10-03
| | | | | Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Return more meaningful value for btrfs_read_deve_superQu Wenruo2016-10-03
| | | | | | | | | | | | | | btrfs_read_dev_super() only returns 0 or -1, which doesn't really help, caller won't know if it's caused by bad superblock or superblock out of range. Return -errno if pread64() return -1, and return -EOF if none or part of the super is read out, and return what check_super() returned. So caller can get -EIO to catch real corrupted super blocks. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: change btrfs_csum_final result param type to u8Domagoj Tršan2016-10-03
| | | | | Signed-off-by: Domagoj Tršan <domagoj.trsan@gmail.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: catch invalid flags in open_ctree_fdDavid Sterba2016-09-21
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: handle errors from btrfs_alloc_pathDavid Sterba2016-09-21
| | | | | | | All functions already return an error condition, so the callers should expect that. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: better error report in btrfs_scan_fs_devicesDavid Sterba2016-09-21
| | | | | | Print the found sizes. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: remove stray newline from message in check_superDavid Sterba2016-09-21
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: check: do early check for read_tree_blockQu Wenruo2016-09-05
| | | | | | | | | | | | | | | | | | | Although we have enhanced read_tree_block() from a lot of different aspects, it lacks the early bytenr/blocksize alignment check. And the lack of such check can lead to strange use-after-free bugs, due to the fact that alloc_extent_buffer() will free overlapping extent buffers, and allocate new eb for the usage. So we should not allow invalid bytenr/blocksize even passed to btrfs_find_create_tree_block(). This patch will add such check so we won't trigger use-after-free bug then. Reported-by: Lukas Lueg <lukas.lueg@gmail.com> Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: two staged filesystem creationDavid Sterba2016-08-24
| | | | | | | | | | | | | | | | | | | | | | | | The filesystem existence on a device is manifested by the signature, during the mkfs process we write it first and then create other structures. Such filesystem is not valid and should not be registered during device scan nor listed among devices from blkid. This patch will introduce two staged creation. In the first phase, the signature is wrong, but recognized as a partially created filesystem (by open or scan helpers). Once we successfully create and write everything, we fixup the signature. At this point automated scanning should find a valid filesystem on all devices. We can also rely on the partially created filesystem to do better error handling during creation. We can just bail out and do not need to clean up. The partial signature is '!BHRfS_M', can be shown by btrfs inspect-internal dump-super -F image Reviewed-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: make superblock reading/scanning api more genericDavid Sterba2016-08-24
| | | | | | We'll add more modes that affect scanning. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: pass OPEN_CTREE flags as unsignedDavid Sterba2016-08-24
| | | | | | | As we're passing a set of flags, the enum type is not appropriate. Reviewed-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: use proper unaligned helper in btrfs_csum_finalDavid Sterba2016-07-29
| | | | | | | | This will not cause unaligned access as the checksum is at the beginning of btrfs_header and thus aligned to a page, but for clarity use the helper. Signed-off-by: David Sterba <dsterba@suse.com>
* Btrfs-progs: Initialize stripesize to the value of sectorsizeChandan Rajendra2016-06-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | stripesize should ideally be set to the value of sectorsize. However previous versions of btrfs-progs/mkfs.btrfs had set stripesize to a value of 4096. On machines with PAGE_SIZE other than 4096, This could lead to the following scenario, - /dev/loop0, /dev/loop1 and /dev/loop2 are mounted as a single filesystem. The filesystem was created by an older version of mkfs.btrfs which set stripesize to 4k. - losetup -a /dev/loop0: [0030]:19477 (/root/disk-imgs/file-0.img) /dev/loop1: [0030]:16577 (/root/disk-imgs/file-1.img) /dev/loop2: [64770]:3423229 (/root/disk-imgs/file-2.img) - /etc/mtab lists only /dev/loop0 - losetup /dev/loop4 /root/disk-imgs/file-1.img The new mkfs.btrfs invoked as 'mkfs.btrfs -f /dev/loop4' succeeds even though /dev/loop1 has already been mounted and has /root/disk-imgs/file-1.img as its backing file. The above behaviour occurs because check_super() function returns an error code (due to stripesize not being set to 4096) and hence check_mounted_where() function treats /dev/loop1 as a disk containing a filesystem other than Btrfs. Hence as a workaround this commit allows 4096 as a valid stripesize. Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: drop O_CREATE from open_ctree_fs_infoDavid Sterba2016-06-01
| | | | | | | We stat the filesystem path before trying to open it so there's no point to pass O_CREAT ("btrfs-progs: add stat check in open_ctree_fs_info"). Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: Enhance tree block check by checking empty leaf or nodeQu Wenruo2016-06-01
| | | | | | | | | | | For btrfs, it's possible to have empty leaf, but empty node is not possible. Add check for empty node for tree blocks. Suggested-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: replace printf with message helpers in check_superLiu Bo2016-05-11
| | | | | Signed-off-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: add three more validation checks for superblockLiu Bo2016-05-11
| | | | | | | | | | | | | | | This adds validation checks for super_total_bytes, super_bytes_used and super_stripesize. Since these checks are made after superblock finishes checksum checking, this also adds a notice of "superblock checksum matches but..". Reported-by: Vegard Nossum <vegard.nossum@oracle.com> Reported-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Liu Bo <bo.li.liu@oracle.com> [ adjusted message wording ] Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: fix incorrect flag check while recovering superLiu Bo2016-05-11
| | | | | | | | The flag OPEN_CTREE_RECOVER_SUPER is set when it's going to recover any bad superblock copy, the current code doesn't match that. Signed-off-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: deprecate and stop using btrfs_level_sizeDavid Sterba2016-05-02
| | | | | | Size of a b-tree node is always nodesize, regardless of the level. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: replace leafsize with nodesizeDavid Sterba2016-05-02
| | | | | | | | Nodesize is used in kernel, the values are always equal. We have to keep leafsize in headers, similarly the tree setting functions still take and set leafsize, but it's effectively a no-op. Signed-off-by: David Sterba <dsterba@suse.com>
* btrfs-progs: switch to common message helpers in open_ctree_fs_infoDavid Sterba2016-03-18
| | | | Signed-off-by: David Sterba <dsterba@suse.com>
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