btrfs-progs: add new dev replace result

A new dev replace result was introduced by kernel commit

Btrfs: return failure if btrfs_dev_replace_finishing() failed

Make the userspace know about the new result too.

Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Btrfs-progs: fix a bug of converting sparse ext2/3/4

When converting a sparse ext* filesystem, btrfs-convert adds checksum extents
for empty extents, whose disk_bytenr = 0, and this can end up with some weird
problems, one of them is the failure of reading free space cache inode on
mounting converted btrfs.

The fix is simple, just to skip making checksum on empty extents.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
btrfs-progs: fix spacing in error messages

Signed-off-by: David Sterba <dsterba@suse.cz>
btrfs-progs: fix return value problem for btrfs sub show

If you exec:
	# btrfs sub show <dir>	<== non-subvolume dir
The cmd print error messages as expected, but returns 0.
By convetion, it should return non-zero and we should explicitly
set it before it goto out.

With other pieces adopted:
1) removed a unnecessary return value set -EINVAL
2) fixed another code branch which may return 0 upon error.
3) with 2) applied, the ret = 0 follows can be removed

Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
btrfs-progs: apply realpath for btrfs fi show when mount point is given

For now,
	# btrfs fi show /mnt/btrfs
gives info correctly, while
	# btrfs fi show /mnt/btrfs/
gives nothing.

This implies that the @realpath() function should be applied to
unify the behavior.

Made a more clear comment right above the call as well.

Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Btrfs-progs: add_refs_for_implied: Use root_id instead of root_bytenr.

resolve_one_root() returns the objectid of a tree rather than the logical
address of the root node. Hence using root_bytenr is misleading. Fix this.

Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
btrfs-progs: print root dir verbose error in fsck

Before this patch, when btrfsck found an error in root dir, it will only
output the following message "root %llu root dir %llu error" without any
detailed error.

Just add print_inode_error() to print out the whole error.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Btrfs progs 3.17.3

Signed-off-by: David Sterba <dsterba@suse.cz>
btrfs-progs: move group type and profile pretty printers to utils

Move and add the btrfs_ prefix.

Signed-off-by: David Sterba <dsterba@suse.cz>
btrfs-progs: Enhance the command btrfs filesystem df

Enhance the command "btrfs filesystem df" to show space usage information
for a mount point(s). It shows also an estimation of the space available,
on the basis of the current one used.

Signed-off-by: Goffredo Baroncelli <kreijack@inwind.it>
[code moved under #if 0 instead of deletion]
Signed-off-by: David Sterba <dsterba@suse.cz>
btrfs-progs: Add helpers functions to handle the printing of data in tabular format

This patch adds some functions to manage the printing of the data in
tabular format.

The function
	struct string_table *table_create(int columns, int rows)
creates an (empty) table.

The functions
	char *table_printf(struct string_table *tab, int column,
		int row, char *fmt, ...)
	char *table_vprintf(struct string_table *tab, int column,
		int row, char *fmt, va_list ap)
populate the table with text. To align the text to the left, the text
shall be prefixed with '<', otherwise the text shall be prefixed by a
'>'. If the first character is a '=', the the text is replace by a
sequence of '=' to fill the column width.

The function
	void table_free(struct string_table *)
frees all the data associated to the table.

The function
	void table_dump(struct string_table *tab)
prints the table on stdout.

Signed-off-by: Goffredo Baroncelli <kreijack@inwind.it>
Signed-off-by: David Sterba <dsterba@suse.cz>
btrfs-progs: Add command btrfs filesystem disk-usage

Signed-off-by: Goffredo Baroncelli <kreijack@inwind.it>
Signed-off-by: David Sterba <dsterba@suse.cz>
btrfs-progs: Add btrfs device disk-usage command

Signed-off-by: Goffredo Baroncelli <kreijack@inwind.it>
Signed-off-by: David Sterba <dsterba@suse.cz>
btrfs-progs: cleanup dead return after usage() for fi-disk_usage

The usage() calls exit() internally, so remove the return after it.

Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
btrfs-progs: Fix memleak in get_raid56_used()

Fix memleak in get_raid56_used().

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Btrfs-progs: fi usage: free memory if realloc fails

Lets not assign *info_ptr to 0 before calling free on it and lose
track of already allocated memory if realloc fails in
add_info_to_list. Lets call free first.

Signed-off-by: Rakesh Pandit <rakesh@tuxera.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
btrfs-progs: add original 'df' and rename 'disk_usage' to 'usage'

Add back the original output of the 'btrfs fi df' command for backward
compatibility. The rich output is moved from 'disk_usage' to 'usage'.

Agreed in http://www.spinics.net/lists/linux-btrfs/msg31698.html

Signed-off-by: David Sterba <dsterba@suse.cz>
btrfs-progs: move device usage to cmds-device, more cleanups

Move the command definitions where they belong, keep common 'usage'
functions in cmds-fi-disk_usage.c and add exports.

Rename structures containing 'disk' to 'device'.

Fix whitespace in the modified code.

Signed-off-by: David Sterba <dsterba@suse.cz>
btrfs-progs: check if we can't get info from ioctls due to permissions

The TREE_SEARCH ioctl is root-only, FS_INFO will be available for
non-root users with an updated kernel, let the user know.

Signed-off-by: David Sterba <dsterba@suse.cz>
btrfs-progs: zero out structures before calling ioctl

Signed-off-by: David Sterba <dsterba@suse.cz>