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The function @parse_prop() returns either -1 or 0, no need to check
for other values. Just return the unnecessary check.
Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
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The local variable @object etc. in btrfs-property get/set functions
are to be checked whether to be NULL or not, but the @parse_args()
don't guarantee to assign a value to it, so it is better to init
it to NULL.
Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
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To let the independent tools(e.g. btrfs-image, btrfs-convert, etc.)
share the convenience of check_argc_* functions, just move it into
utils.c.
Also add a new function "set_argv0" to set the correct tool name:
*btrfs-image*: too few arguments
The original btrfs* tools work as before.
Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
[moved argv0 and check_argc to utils.*]
Signed-off-by: David Sterba <dsterba@suse.cz>
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# btrfs prop list -t f .
btrfs property list: too many arguments
...
# btrfs prop get -t f . label
btrfs property get: too many arguments
...
# btrfs prop set -t f . label abc
btrfs property set: too many arguments
...
Signed-off-by: Kusanagi Kouichi <slash@ac.auone-net.jp>
Signed-off-by: David Sterba <dsterba@suse.cz>
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The usage() in help.c calls exit(1), so the break behind is nonsense
and should be removed.
Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
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Several fixes:
1) The function check_is_root() returns 0 if the object is root;
2) Don't treat any error from get fsid ioctl as meaning the target
is root. Only -ENOTTY means it's a root (parent directory is
not a btrfs fs) and a -ENOTDIR means our target object is not a
directory, therefore it can be the root;
3) Fix the comparison of the target and target's parent fs ids. If
they are different, it means the target is a mount point in a
btrfs fs, therefore it's a root, otherwise it isn't.
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
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"btrfs filesystem property" is a generic interface to set/get
properties on filesystem objects (inodes/subvolumes/filesystems
/devs).
This patch adds the generic framework for properties and also
implements two properties. The first is the read-only property
for subvolumes and the second is the label property for devices.
Signed-off-by: Alexander Block <ablock84@googlemail.com>
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
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