Wang Shilong [Mon, 7 Oct 2013 07:21:38 +0000 (15:21 +0800)]
Btrfs-progs: introduces '-p' option to print the ID of the parent qgroups
This patch introduces '-p' option to print the ID of the parent qgroups.
You may use it like:
btrfs qgroup show -p <path>
For Example:
qgroupid(2/0)
/ \
/ \
/ \
qgroupid(1/0) qgroupid(1/1)
\ /
\ /
qgroupid(0/1)
If we use the command:
btrfs qgroup show -p <path>
The result will output
0/1 -- -- 1/0,1/1
1/0 -- -- 2/0
1/1 -- -- 2/0
2/0 -- -- --
Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Mon, 7 Oct 2013 07:21:37 +0000 (15:21 +0800)]
Btrfs-progs: restructure show_qgroups
The current show_qgroups() just shows a little information, and it is hard to
add some functions which the users need in the future, so i restructure it, make
it easy to add new functions.
In order to improve the scalability of show_qgroups(), i add some important
structures:
struct qgroup_lookup {
struct rb_root root;
}
/*
*store qgroup's information
*/
struct btrfs_qgroup {
struct rb_node rb_node;
u64 qgroupid;
u64 generation;
u64 rfer;
u64 rfer_cmpr;
u64 excl_cmpr;
u64 flags;
u64 max_rfer;
u64 max_excl;
u64 rsv_rfer;
u64 rsv_excl;
struct list_head qgroups;
struct list_head members;
}
/*
*glue structure to represent the relations
*between qgroups
*/
struct btrfs_qgroup_list {
struct list_head next_qgroups;
struct list_head next_member;
struct btrfs_qgroup *qgroup;
struct btrfs_qgroup *member;
}
The above 3 structures are used to manage all the information
of qgroups.
struct {
char *name;
char *column_name;
int need_print;
} btrfs_qgroup_columns[]
We define a arrary to manage all the columns that can be
outputed, and use a member variant(->need_print) to control
the output of the relative column. Some columns are outputed
by default. But we can change it according to the requirement
of the users.
For example:
if outputing max referenced size of qgroup is needed,the function
'btrfs_qgroup_setup_column()' will be called, and the parameter 'BTRFS_QGROUP_MAX_RFER'
(extend in the future) will be passsed to the function. After the function is done,
when showing qgroups, max referenced size of qgroup will be output.
Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
chandan [Mon, 7 Oct 2013 06:36:11 +0000 (12:06 +0530)]
btrfs-progs: btrfs_list_find_updated_files: Fix memory leak.
The current code returns from the function when the call to ioctl
fails. This may leak cache_dir_name and cache_full_name. Fix it.
Signed-off-by: chandan <chandan@linux.vnet.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Josef Bacik [Fri, 4 Oct 2013 20:42:39 +0000 (16:42 -0400)]
Btrfs-progs: print out human readable errors for inodes and backrefs
We usually print out a hex value of any errors on inodes or their backrefs,
which is a huge pain for me because I have to put it into a calculator and count
the bits to figure out which errors these map to, and usually I get it wrong the
first time. To fix this lets just print out a human readable string for each
error that way it will be easier to spot the "OH GOD THAT'S AWFUL" errors from
"oh yeah thats no big deal, repair will fix that." Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Frank Holton [Tue, 1 Oct 2013 15:31:47 +0000 (11:31 -0400)]
btrfs-progs: Update manpages for btrfs defrag -r
Add the -r option to the manpages for btrfs defragment
Signed-off-by: Frank Holton <fholton@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Josef Bacik [Tue, 1 Oct 2013 13:00:19 +0000 (09:00 -0400)]
Btrfs-progs: keep track of transid failures and fix them if possible
A user was reporting an issue with bad transid errors on his blocks. The thing
is that btrfs-progs will ignore transid failures for things like restore and
fsck so we can do a best effort to fix a users file system. So fsck can put
together a coherent view of the file system with stale blocks. So if everything
else is ok in the mind of fsck then we can recow these blocks to fix the
generation and the user can get their file system back. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Josef Bacik [Tue, 1 Oct 2013 12:58:33 +0000 (08:58 -0400)]
Btrfs-progs: add a test image for the transid fixer in btrfsck
This is a verification test for the transid recow functionality of btrfsck.
I've also adjusted the test script to spit out which image it's testing so I can
be sure the image was getting tested. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Josef Bacik [Tue, 1 Oct 2013 12:54:58 +0000 (08:54 -0400)]
Btrfs-progs: add ability to corrupt metadata block fields
This patch allows us to garble the generation field of a metadata block. We
will search down to the block, set the bogus generation and write the block back
out. I used this for verifying a transid fix patch for btrfsck. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Josef Bacik [Mon, 9 Sep 2013 20:41:58 +0000 (16:41 -0400)]
Btrfs-progs: add make test framework
We need to start adding some sanity tests to btrfs-progs to make sure we aren't
breaking things with our patches. The most important of these tools is btrfsck.
This patch gets things started by adding a basic btrfsck test that makes sure we
can fix a corruption problem we know we can fix. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Frank Holton [Mon, 23 Sep 2013 19:18:17 +0000 (15:18 -0400)]
btrfs-progs: Add recursive defrag using -r option
Add an option to defrag all files in a directory recursively.
Signed-off-by: Frank Holton <fholton@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Josef Bacik [Mon, 30 Sep 2013 20:15:22 +0000 (16:15 -0400)]
Btrfs-progs: make the repair option a global static var
It's just annoying to have to pass it around everywhere. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Anand Jain [Fri, 27 Sep 2013 17:30:05 +0000 (01:30 +0800)]
btrfs-progs: device add should check existing FS before adding
as of now, when 'btrfs device add' adds a device it doesn't
check if the given device contains an existing FS. This
patch will change that to check the same. which when true
add will fail, and ask user to use -f option to overwrite.
further, since now we have test_dev_for_mkfs() function
to check if a disk can be used, so this patch will also
use this function to test the given device before adding.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
chandan [Mon, 23 Sep 2013 18:17:11 +0000 (23:47 +0530)]
btrfs-progs: cmd_find_new: Sync fs before searching for modified files.
The sync makes sure that 'very recently' introduced delayed work is
accounted for in the output of 'btrfs subvolume find-new' command.
Signed-off-by: chandan <chandan@linux.vnet.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Anand Jain [Fri, 27 Sep 2013 15:45:00 +0000 (23:45 +0800)]
btrfs-progs: create helper function to use lblkid to scan for btrfs disks
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Anand Jain [Fri, 27 Sep 2013 12:24:41 +0000 (20:24 +0800)]
btrfs-progs: move out print in cmd_df to another function
This is a prepatory work for the btrfs fi show command
fixes. So that we have a function get_df to get the fs sizes
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Ross Kirk [Tue, 1 Oct 2013 09:59:22 +0000 (11:59 +0200)]
btrfs-progs: Make btrfs_header_fsid() return unsigned long
Internally, btrfs_header_fsid() calculates an unsigned long, but casts
it to a pointer, while all callers cast it to unsigned long again.
Committed to btrfs as
fba6aa75654394fccf2530041e9451414c28084f
Fix line length issues and match changes to kernelspace
Signed-off-by: Ross Kirk <ross.kirk@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
chandan [Fri, 20 Sep 2013 18:22:11 +0000 (23:52 +0530)]
btrfs-progs: clear_extent_bits: Fix memory leak.
The 'prealloc' extent_state structure is leaked for the case when the 'desired
range' encapsulates/covers the 'extent range'.
Signed-off-by: chandan <chandan@linux.vnet.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Josef Bacik [Fri, 20 Sep 2013 17:51:31 +0000 (13:51 -0400)]
Btrfs-progs: fix the min ticks check in print_seek_histogram
Before I had been dividing by 5 but that gave me too much output so I changed it
to 20 without changing the min seeks test. Fix this to avoid a divide by 0
problem. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
David Sterba [Fri, 20 Sep 2013 16:42:07 +0000 (18:42 +0200)]
btrfs-progs: check if device supports trim
The message about trim was printed unconditionally, we should check if
trim is supported at all.
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Josef Bacik [Fri, 20 Sep 2013 15:32:41 +0000 (11:32 -0400)]
Btrfs-progs: add a bunch of new statistics to btrfs-calc-size
I've been wanting to get back to the allocator and make some changes to try and
fix our fragmenation woes with lots of metadata. But in order to make these
changes I need to have something to tell me if my changes are making a real
measurable difference. So this patch adds a bunch of new statistics to
btrfs-calc-size. It will tell me how long it took to read in the trees, how
many seeks it had (both forward and backward). It will tell me how far spread
out the tree is and spit out a nice histogram of the seeks. Here is some sample
output
Calculating size of extent tree
Total size: 60.74MB
Inline data: 0.00
Total seeks: 5020
Forward seeks: 3691
Backward seeks: 1329
Avg seek len: 929.53MB
Seek histogram
4096 - 4096: 1043 ####
8192 - 73728: 760 ###
81920 -
52527104: 753 ###
53518336 -
168009728: 753 ###
168591360 -
696045568: 753 ###
696238080 -
7560364032: 753 ###
7560437760 -
8409739264: 178 |
Total clusters: 1874
Avg cluster size: 25.17KB
Min cluster size: 8.00KB
Max cluster size: 472.00KB
Total disk spread: 7.90GB
Total read time: 0 s 341670 us
Levels: 4
This way we can have good numbers to back up any changes we make to the
allocator. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
David Sterba [Wed, 18 Sep 2013 16:19:30 +0000 (18:19 +0200)]
btrfs-progs: look up the containing tree root id
Find the tree id of the containing subvolume for a given file or
directory. For subvolume return it's own id.
$ btrfs inspect-internal rootid <path>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
David Sterba [Wed, 18 Sep 2013 15:26:33 +0000 (17:26 +0200)]
btrfs-progs: remove leftovers from hg times
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Ross Kirk [Fri, 20 Sep 2013 13:27:32 +0000 (14:27 +0100)]
btrfs-progs: remove unused parameter from btrfs_header_fsid
Remove unused parameter, 'eb'. Unused since introduction in
7777e63b425f1444d2472ea05a6b2b9cf865f35b
Signed-off-by: Ross Kirk <ross.kirk@gmail.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Ross Kirk [Fri, 20 Sep 2013 09:55:26 +0000 (10:55 +0100)]
btrfs-progs: drop unused parameter from btrfs_item_nr
Remove unused eb parameter from btrfs_item_nr, unused since introduced
in
7777e63b425f1444d2472ea05a6b2b9cf865f35b
Signed-off-by: Ross Kirk <ross.kirk@gmail.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Sat, 21 Sep 2013 08:34:18 +0000 (16:34 +0800)]
Btrfs-progs: add super-recover to recover bad supers
Until now if one of device's first superblock is corrupt,btrfs will
fail to mount. Luckily, btrfs have at least two superblocks for
every disk.
In theory, if silent corrupting happens when we are writting superblocks
into disk, we must hold at least one good superblock.
One side effect is that user must gurantee that the disk must be
a btrfs disk. Otherwise, this tool may destroy other fs.(This is also
reason why btrfs only use first superblock in every disk to mount)
This little program will try to correct bad superblocks from
good superblocks with max generation.
There will be five kinds of return values:
0: all supers are valid, no need to recover
1: usage or syntax error
2: recover all bad superblocks successfully
3: fail to recover bad superblocks
4: abort to recover bad superblocks
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 18 Sep 2013 08:27:35 +0000 (16:27 +0800)]
Btrfs-progs: move ask_user() to utils.c
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 18 Sep 2013 08:27:34 +0000 (16:27 +0800)]
Btrfs-progs: pass flag to control whether run ioctl in btrfs_scan_for_fsid()
If some fatal superblocks are damaged, running ioctl will return failure,
in this case, we should avoid run ioctl.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 18 Sep 2013 08:27:33 +0000 (16:27 +0800)]
Btrfs-progs: do not run ioctls in check_mounted_where()
We don't need to run ioctls when checking whether btrfs
has mounted somewhere.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
David Sterba [Tue, 17 Sep 2013 15:24:53 +0000 (17:24 +0200)]
btrfs-progs: add list_sort and use it to sort devices by id
The devices in 'btrfs filesystem show' are now sorted by the device id,
currently the order was undefined.
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
David Sterba [Tue, 17 Sep 2013 15:21:22 +0000 (17:21 +0200)]
btrfs-progs: separate command and implementation of chunk-recover code
The command has been moved and we should rename the files accordingly,
so the entry point is now in cmds-rescue.c and the core functionality
in it's own file.
Return codes of btrfs_recover_chunk_tree have been simplified not to
require a define and another file for defintion.
CC: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
David Sterba [Tue, 17 Sep 2013 15:21:21 +0000 (17:21 +0200)]
btrfs-progs: move chunk-recover to rescue group
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
David Sterba [Tue, 17 Sep 2013 15:21:20 +0000 (17:21 +0200)]
btrfs-progs: introduce rescue command group
Add an empty 1st level command namespace that will collect specialized
recovery tools like chunk-recover, zero-log, select-super and similar.
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
David Sterba [Tue, 17 Sep 2013 14:54:01 +0000 (16:54 +0200)]
btrfs-progs: add nodiscard option to device add
Same as for mkfs.
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
David Sterba [Tue, 17 Sep 2013 14:54:00 +0000 (16:54 +0200)]
btrfs-progs: use better name for nodiscard variable and flip the logic
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Tue, 10 Sep 2013 02:28:29 +0000 (10:28 +0800)]
Btrfs-progs: fix magic return value in cmds-balance.c
If there is no balance in progress, resume/pause/cancel
will return 2. Usage or syntax errors will return 1.
And 0 means operations return successfully.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Chris West (Faux) [Mon, 9 Sep 2013 22:06:38 +0000 (23:06 +0100)]
btrfs-progs: fix -Wmissing-noreturn
Signed-off-by: "Chris West (Faux)" <git@goeswhere.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Chris West (Faux) [Mon, 9 Sep 2013 22:06:24 +0000 (23:06 +0100)]
btrfs-progs: 'optarg' shadows getopt
Signed-off-by: "Chris West (Faux)" <git@goeswhere.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Josef Bacik [Mon, 9 Sep 2013 20:41:57 +0000 (16:41 -0400)]
Btrfs-progs: add ability to corrupt file extent disk bytenr
A user had a corrupt fs where one of his file extents pointed to a completely
bogus disk bytenr. This patch allows us to corrupt a file system in a similar
way in order to test btrfsck. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Josef Bacik [Mon, 9 Sep 2013 20:41:56 +0000 (16:41 -0400)]
Btrfs-progs: make btrfsck fix backrefs that are broken
If you set an file extent item's disk_bytenr to something completely wrong we
won't be able to fix this if it is the only one who has a ref on the original
disk bytenr. Our extent records know exactly who is supposed to point at them,
so if we have an extent record that has no backrefs we can go and try to lookup
the backrefs ourselves. If these backrefs do not point to an extent record that
was actually found then we can be pretty sure this extent record is valid and
the backref is bogus. Then the verify_backref code can do its thing and reset
the backref to point to the right extent record and we can all carry on. This
fixes a user reported corruption. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Josef Bacik [Mon, 9 Sep 2013 20:41:55 +0000 (16:41 -0400)]
Btrfs-progs: allow fsck to fix directory isize errors
A user reported a problem where he was unable to rmdir an empty directory. This
is because his isize was wrong. This patch will fix this sort of corruption and
allow him to rmdir his directory. Thanks
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Josef Bacik [Mon, 9 Sep 2013 20:41:54 +0000 (16:41 -0400)]
Btrfs-progs: setup framework to corrupt specific fields of an inode
A user reported a problem with his fs where he had a bogus isize on his
directory. In order to make sure my patch for fsck fixes this properly I needed
to be able to corrupt an inode like this, which is what this patch is for.
Eventually I want to extend this to corrupt everything so we can integrate tests
into btrfs-progs to run btrfsck against to make sure we don't regress on fixing
things with btrfsck. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
David Sterba [Mon, 9 Sep 2013 20:40:55 +0000 (22:40 +0200)]
btrfs-progs: make btrfs-corrupt-block compile again
Reexport csum_tree_block.
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Mon, 9 Sep 2013 06:08:12 +0000 (14:08 +0800)]
Btrfs-progs: fix typo in btrfs_err_str()
Raid5 and raid6 at least need three and foure devices respectively,
fix it.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Hidetoshi Seto [Thu, 5 Sep 2013 06:57:19 +0000 (15:57 +0900)]
btrfs-progs: calculate available blocks on device properly
I found that mkfs.btrfs aborts when assigned multi volumes contain
a small volume:
# parted /dev/sdf p
Model: LSI MegaRAID SAS RMB (scsi)
Disk /dev/sdf: 72.8GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 32.3kB 72.4GB 72.4GB primary
2 72.4GB 72.8GB 461MB primary
# ./mkfs.btrfs -f /dev/sdf1 /dev/sdf2
:
SMALL VOLUME: forcing mixed metadata/data groups
adding device /dev/sdf2 id 2
mkfs.btrfs: volumes.c:852: btrfs_alloc_chunk: Assertion `!(ret)' failed.
Aborted (core dumped)
This failure of btrfs_alloc_chunk was caused by following steps:
1) since there is only small space in the small device, mkfs was
going to allocate a chunk from free space as much as available.
So mkfs called btrfs_alloc_chunk with
size = device->total_bytes - device->used_bytes.
2) (According to the comment in source code, to avoid overwriting
superblock,) btrfs_alloc_chunk starts taking chunks at an offset
of 1MB. It means that the layout of a disk will be like:
[[1MB at beginning for sb][allocated chunks]* ... free space ... ]
and you can see that the available free space for allocation is:
avail = device->total_bytes - device->used_bytes - 1MB.
3) Therefore there is only free space 1MB less than requested. damn.
>From further investigations I also found that this issue is easily
reproduced by using -A, --alloc-start option:
# truncate --size=1G testfile
# ./mkfs.btrfs -A900M -f testfile
:
mkfs.btrfs: volumes.c:852: btrfs_alloc_chunk: Assertion `!(ret)' failed.
Aborted (core dumped)
In this case there is only 100MB for allocation but btrfs_alloc_chunk
was going to allocate more than the 100MB.
The root cause of both of above troubles is a same simple bug:
btrfs_chunk_alloc does not calculate available bytes properly even
though it researches how many devices have enough room to have a
chunk to be allocated.
So this patch introduces new function btrfs_device_avail_bytes()
which returns available bytes for allocation in specified device.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Hidetoshi Seto [Thu, 5 Sep 2013 06:55:08 +0000 (15:55 +0900)]
btrfs-progs: error if device have no space to make primary chunks
The previous patch works fine if the size of specified volume to mkfs
is less than 4MB. However usually btrfs requires more than 4MB to work,
and the minimum preferred size is depending on the raid setting etc.
This patch let mkfs print error message if it cannot allocate one of
chunks should be there at first.
[before]
# truncate --size=4500K testfile
# ./mkfs.btrfs -f testfile
:
SMALL VOLUME: forcing mixed metadata/data groups
mkfs.btrfs: mkfs.c:84: make_root_dir: Assertion `!(ret)' failed.
Aborted (core dumped)
[After]
# truncate --size=4500K testfile
# ./mkfs.btrfs -f testfile
:
SMALL VOLUME: forcing mixed metadata/data groups
no space to alloc data/metadata chunk
failed to setup the root directory
TBD is calculate minimum size for setting and put it in the error
message to let user know how large amount of volume is required.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Hidetoshi Seto [Thu, 5 Sep 2013 06:53:34 +0000 (15:53 +0900)]
btrfs-progs: error if device for mkfs is too small
Eric pointed out that mkfs abort if specified volume is too small:
# truncate --size=2m testfile
# ./mkfs.btrfs testfile
:
SMALL VOLUME: forcing mixed metadata/data groups
mkfs.btrfs: volumes.c:852: btrfs_alloc_chunk: Assertion `!(ret)' failed.
Aborted (core dumped)
As the first step to fix problems around there, let mkfs to report
error if the size of target volume is less than the size of the first
system block group, BTRFS_MKFS_SYSTEM_GROUP_SIZE (= 4MB).
Reported-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
chandan [Thu, 5 Sep 2013 05:51:30 +0000 (11:21 +0530)]
btrfs-progs: btrfs_setup_chunk_tree_and_device_map: Return -EIO on error.
As a result of a successful call to btrfs_read_sys_array(), the 'ret'
variable is already set to 0. Hence the function would return 0 even
if the call to read_tree_block() fails.
Signed-off-by: chandan <chandan@linux.vnet.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Gui Hecheng [Thu, 5 Sep 2013 08:00:43 +0000 (16:00 +0800)]
btrfs-progs: free strdup()s that are not freed
The strdup()s not freed are reported as memory leaks by valgrind.
Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Gui Hecheng [Thu, 5 Sep 2013 02:38:57 +0000 (10:38 +0800)]
btrfs-progs: free the local list pending_list in btrfs_scan_one_dir
Originally the local pending_list is not guaranteed to be freed upon
fails, it should be emptyed and the elements should be freed.
Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Gui Hecheng [Thu, 5 Sep 2013 02:38:56 +0000 (10:38 +0800)]
btrfs-progs: missing tree-freeing statements added
The seen cache_tree in run_next_block freed.
Originally, this "missing" causes memory leaks, reported by valgrind.
Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Gui Hecheng [Thu, 5 Sep 2013 02:38:55 +0000 (10:38 +0800)]
btrfs-progs: local variable memory freed
The local probe variable in is_ssd() freed upon unsuccessful return;
The local dir_head list in make_image() freed upon unsuccessful return.
Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Gui Hecheng [Thu, 5 Sep 2013 02:38:54 +0000 (10:38 +0800)]
btrfs-progs: free local variable buf upon unsuccessful returns
The variable "buf" passed into find_collision() as parameter "name"
should be freed on unsuccessful returns.
Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:37 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in cmds-scrub.c
There will be four kinds of return value for command "scrub start":
0: scrub dosen't find errors and return success.
1: usage or syntax errors.
3: scrub finds errors and correct all of them.
4: scrub finds errors and some of them are not correctable.
Three kinds of return values for scrub cancel/resume:
0: cancel successfully.
1: usage or syntax errors.
2: cancel a not started or finished scrub.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:36 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in cmds-replace.c
There are 3 kinds of return values in replace cancel:
0: cancel successfully.
1: usage or syntal errors
2: cancel a not started or finished replacing operations.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:34 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in random-test.c
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:33 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in dir-test.c
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:32 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in send-test.c
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:31 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in btrfs-zero-log.c
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:30 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in btrfs-imgae.c
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:29 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in cmds-send.c
If btrfs send return failure, we return 1,otherwise 0 will be returned.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:28 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in cmds-restore.c
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:27 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in cmds-receive.c
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:26 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in cmds-quota.c
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:25 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in cmds-qgroup.c
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:24 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in cmds-inspect.c
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:23 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in cmds-filesystem.c
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:22 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in cmds-device.c
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:20 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in cmds-chunk.c
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:19 +0000 (23:22 +0800)]
Btrfs-progs: fix magic return value in cmds-subvolume.c
The patch also fixes some coding styles problems.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 15:22:18 +0000 (23:22 +0800)]
Btrfs-progs: return 1 rather than 129 in usage()
if usage or syntax error happens, we return 1.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 4 Sep 2013 11:43:20 +0000 (19:43 +0800)]
Btrfs-progs: fix compile warning in is_ssd()
mkfs.c: In function ‘is_ssd’:
mkfs.c:1168:26: warning: ignoring return value of ‘blkid_devno_to_wholedisk’,
declared with attribute warn_unused_result [-Wunused-result]
blkid_devno_to_wholedisk(devno, wholedisk, sizeof(wholedisk), NULL);
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Anand Jain [Fri, 30 Aug 2013 08:50:37 +0000 (16:50 +0800)]
btrfs-progs: mkfs should check for small vol well before
This fix the regression introduced by 830427d
that it no more creates the FS if disk is small
and if no mixed option is provided.
This patch will bring it to the original design
which will force mixed profile when disk is small
and go ahead to create the FS.
Which also means that before we open the device
for the write we should also check if disk is small.
v2: fixes the checkpatch.pl warnings
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Anand Jain [Wed, 7 Aug 2013 12:11:25 +0000 (20:11 +0800)]
btrfs-progs: avoid write to the disk before sure to create fs
This patch provides fix for the following bug,
When mkfs.btrfs fails the disks shouldn't be written.
------------
btrfs fi show /dev/sdb
Label: none uuid:
60fb76f4-3b4d-4632-a7da-
6a44dea5573d
Total devices 1 FS bytes used 24.00KiB
devid 1 size 2.00GiB used 20.00MiB path /dev/sdb
mkfs.btrfs -dsingle -mraid1 /dev/sdb -f
::
unable to create FS with metadata profile 16 (have 1 devices)
btrfs fi show /dev/sdb
Label: none uuid:
2da2179d-ecb1-4a4e-a44d-
e7613a08c18d
Total devices 1 FS bytes used 24.00KiB
devid 1 size 2.00GiB used 20.00MiB path /dev/sdb
-------------
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Filipe David Borba Manana [Tue, 3 Sep 2013 11:19:58 +0000 (12:19 +0100)]
Btrfs-progs: fix restore command leaving corrupted files
When there are files that have parts shared with snapshots, the
restore command was incorrectly restoring them, as it was not
taking into account the offset and number of bytes fields from
the file extent item. Besides leaving the recovered file corrupt,
it was also inneficient as it read and wrote more data than needed
(with each extent copy overwriting portions of the one previously
written).
The following steps show how to reproduce this corruption issue:
$ mkfs.btrfs -f /dev/sdb3
$ mount /dev/sdb3 /mnt/btrfs
$ perl -e '$d = "\x41" . ("\x00" x (1024*1024+349)); open($f,">","/mnt/btrfs/foobar"); print $f $d; close($f);'
$ du -b /mnt/btrfs/foobar
1048926 /mnt/btrfs/foobar
$ md5sum /mnt/btrfs/foobar
f9f778f3a7410c40e4ed104a3a63c3c4 /mnt/btrfs/foobar
$ btrfs subvolume snapshot /mnt/btrfs /mnt/btrfs/my_snap
$ perl -e 'open($f, "+<", "/mnt/btrfs/foobar"); seek($f, 4096, 0); print $f "\xff"; close($f);'
$ md5sum /mnt/btrfs/foobar
b983fcefd4622a03a78936484c40272b /mnt/btrfs/foobar
$ umount /mnt/btrfs
$ btrfs restore /dev/sdb3 /tmp/copy
$ du -b /tmp/copy/foobar
1048926 /tmp/copy/foobar
$ md5sum /tmp/copy/foobar
88db338cbc1c44dfabae083f1ce642d5 /tmp/copy/foobar
$ od -t x1 -j 8192 -N 4 /tmp/copy/foobar
0020000 41 00 00 00
0020004
$ mount /dev/sdb3 /mnt/btrfs
$ od -t x1 -j 8192 -N 4 /mnt/btrfs/foobar
0020000 00 00 00 00
0020004
$ md5sum /mnt/btrfs/foobar
b983fcefd4622a03a78936484c40272b /mnt/btrfs/foobar
Tested this change with zlib, lzo compression and file sizes larger
than 1GiB, and found no regression or other corruption issues (so far
at least).
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Eric Sandeen [Tue, 11 Jun 2013 23:15:17 +0000 (18:15 -0500)]
Btrfs-progs: Add Makefile infrastructure for subdirs
Preparatory patch to move cmd & test files into their
own subdirs.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Filipe David Borba Manana [Sat, 17 Aug 2013 13:48:29 +0000 (14:48 +0100)]
Btrfs-progs: mkfs can now create fs with skinny extents
Before this change, passing -O skinny-metadata to mkfs.btrfs would
only set the skinny metadata incompat flag in the super block after
the filesystem was created. This change makes mkfs.btrfs directly
create a filesystem with only skinny extents for metadata.
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Filipe David Borba Manana [Sat, 17 Aug 2013 13:16:02 +0000 (14:16 +0100)]
Btrfs-progs: add restore command's -x flag to man page
This is a recent flag added to the restore command that allows
to restore xattrs. It was missing in the man page.
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Zach Brown [Wed, 14 Aug 2013 23:16:31 +0000 (16:16 -0700)]
btrfs-progs: get C=1 sparse checking working again
There were a few problems that were breaking sparse checking:
- We were defining CHECK_ENDIAN late in the environment, after
linux/fs.h has been included which defines __force and __bitwise in
confusing ways that conflict with ours. Define it up with __CHECKER__
so that linux/fs.h and our copy are acting on the same input.
- We had manually set a few of gcc's internal defines to give to sparse.
It's easier to just ask gcc for all the defines it sets and hand those
to sparse.
- We weren't passing the same *FLAGS to sparse as we were to CC.
- glibc has so many errors with FORTIFY turned on that sparse gives up
and doesn't show us any errors from our code. It's a questionable
hack to always turn on FORTIFY ourselves, so we'll just not do that
when building with sparse.
And add a nice '[SP]' quiet output line for sparse checks.
Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Zach Brown [Wed, 14 Aug 2013 23:16:45 +0000 (16:16 -0700)]
btrfs-progs: use NULL instead of 0
These were mostly in option structs but there were a few gross string
pointer arguments given as 0.
Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Zach Brown [Wed, 14 Aug 2013 23:16:44 +0000 (16:16 -0700)]
btrfs-progs: give raid6.c its exported prototypes
raid6.c is built without access to the prototypes of functions it
exports.
warning: symbol 'raid6_gen_syndrome' was not declared. Should it be static?
They could be changed and get out of sync of the exported prototypes
without errors. So we add disk-io.h, and its dependency ctree.h, so
that it has a chance to check that its exported prototypes are correct.
Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Zach Brown [Wed, 14 Aug 2013 23:16:43 +0000 (16:16 -0700)]
btrfs-progs: don't use <linux/fs.h>
sparse can freak out when <linux/fs.h> is included because it redefines
approximately a gazillion symbols already found in <sys/mount.h>:
/usr/include/linux/fs.h:203:9: warning: preprocessor token MS_RDONLY redefined
/usr/include/sys/mount.h:37:9: this was the original definition
Happily, we don't actually need to include the low-level <linux/fs.h>
for anything. One assumes it was just carried over from kernel space.
Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Zach Brown [Wed, 14 Aug 2013 23:16:42 +0000 (16:16 -0700)]
btrfs-progs: fix unaligned compat endian warnings
The _una_ struct's entire job is to pass an argument to le*_to_cpu. So
it's a little embarassing that it uses a native cpu types and generates
endian warnings.
ctree.h:1616:1: warning: incorrect type in assignment (different base types)
ctree.h:1616:1: expected unsigned long long [unsigned] [usertype] x
ctree.h:1616:1: got restricted __le64 [usertype] <noident>
Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Zach Brown [Wed, 14 Aug 2013 23:16:41 +0000 (16:16 -0700)]
btrfs-progs: make many private symbols static
Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Zach Brown [Wed, 14 Aug 2013 23:16:40 +0000 (16:16 -0700)]
btrfs-progs: fix qgroup realloc inheritance
qgroup.c:82:23: warning: memcpy with byte count of 0
qgroup.c:83:23: warning: memcpy with byte count of 0
The inheritance wasn't copying qgroups[] because a confused sizeof()
gave 0 byte memcpy()s. It's been like this for the year since it was
merged, so I guess this isn't a very important thing to do :).
Signed-off-by: Zach Brown <zab@redhat.com>
Reviewed-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Zach Brown [Wed, 14 Aug 2013 23:16:39 +0000 (16:16 -0700)]
btrfs-progs: fix in-place byte swapping
Storing fixed-endian values in native cpu types defeats the purpose of
using sparse endian types to find endian conversion bugs.
Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Zach Brown [Wed, 14 Aug 2013 23:16:38 +0000 (16:16 -0700)]
btrfs-progs: fix extent key endian bug in repair
Extents rebuilt from backrefs can have their objectid mangled. The code
tried to build a disk_key by hand and got the swabbing backwards.
Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Zach Brown [Wed, 14 Aug 2013 23:16:37 +0000 (16:16 -0700)]
btrfs-progs: fix endian bugs in chunk rebuilding
A disk_key was set by hand instead of using the endian helpers.
I *think* the second one is just a typo. The chunk's num_stripes was
already initialized from the record, but it's le16. So we'll set the
item's size based on the record's native num_stripes.
Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Zach Brown [Wed, 14 Aug 2013 23:16:36 +0000 (16:16 -0700)]
btrfs-print: define void function args
This silences (reasonable) sparse warnings of the form:
warning: non-ANSI function declaration of ..
Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Zach Brown [Wed, 14 Aug 2013 23:16:35 +0000 (16:16 -0700)]
btrfs-progs: remove variable length stack arrays
sparse hates variable length array definitions on the stack:
btrfs-show-super.c:155:21: warning: Variable length array is used.
And it's right to. They're a fragile construct that doesn't handle bad
input well at all.
Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Zach Brown [Wed, 14 Aug 2013 23:16:34 +0000 (16:16 -0700)]
btrfs-progs: fix shadow symbols
This fixes all the instances of warnings that symbols declared in blocks
shadow symbols with the same name in surrounding scopes:
cmds-device.c:341:22: warning: symbol 'path' shadows an earlier one
cmds-device.c:285:14: originally declared here
I just renamed or removed the risky shadow symbols instead of pulling
their blocks out into functions.
Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Zach Brown [Wed, 14 Aug 2013 23:16:33 +0000 (16:16 -0700)]
btrfs-progs: add ULL to u64 constant
This silences a sparse warning:
warning: constant 0x4D5F53665248425F is so big it is long
from
commit
52162700bb59663add809a6465ce2769d80b3664
Author: Zach Brown <zab@redhat.com>
Date: Thu Jan 17 11:54:47 2013 -0800
btrfs-progs: treat super.magic as an le64
High fives, past me!
Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Zach Brown [Wed, 14 Aug 2013 23:16:32 +0000 (16:16 -0700)]
btrfs-progs: remove __CHECKER__ from main code
__CHECKER__ is only for the type juggling used to tell sparse which
types need conversion between address spaces. It is not OK to use to
change the code that gets checked to avoid bugs elsewhere in the build
infrastructure. We want to check the code that builds when the checker
isn't enabled.
Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 14 Aug 2013 04:29:17 +0000 (12:29 +0800)]
Btrfs-progs: add missing man page for btrfs-map-logical
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 14 Aug 2013 04:29:16 +0000 (12:29 +0800)]
Btrfs-progs: add missing man page information for btrfs-zero-log
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 14 Aug 2013 04:29:15 +0000 (12:29 +0800)]
Btrfs-progs: add missing man page for btrfstune
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 14 Aug 2013 04:29:14 +0000 (12:29 +0800)]
Btrfs-progs: add man page information for btrfs-convert
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 14 Aug 2013 04:29:13 +0000 (12:29 +0800)]
Btrfs-progs: add man page information for btrfs-find-root
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 14 Aug 2013 04:29:12 +0000 (12:29 +0800)]
Btrfs-progs: add missing man page for btrfs-show-super
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 14 Aug 2013 04:29:11 +0000 (12:29 +0800)]
Btrfs-progs: add missing man information for btrfs-debug-tree
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Wang Shilong [Wed, 14 Aug 2013 04:29:10 +0000 (12:29 +0800)]
Btrfs-progs: add missing man page information for btrfsck
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>