Commit Graph

111 Commits

Author SHA1 Message Date
Andreas Philipp d8e974fb4c remove unused include "version.h"
In the file btrfs-list.c version.h was included but not used. So just
drop it.

Signed-off-by: Andreas Philipp <philipp.andreas@gmail.com>
Signed-off-by: Hugo Mills <hugo@carfax.org.uk>
2011-10-25 09:18:59 -04:00
Andreas Philipp 97a3182fbf print parent ID in btrfs suvolume list
There was some discussion on "where" subvolumes live in. Why do we not
simply print the parent ID for each subvolume in btrfs subvolume list?
This patch adds this functionality when called with parameter "-p".

Signed-off-by: Andreas Philipp <philipp.andreas@gmail.com>
Signed-off-by: Hugo Mills <hugo@carfax.org.uk>
2011-10-25 09:18:59 -04:00
Anton Blanchard fa81a569ac btrfs-progs: cast u64 to long long to avoid printf warnings
When building on ppc64 I hit a number of warnings in printf:

btrfs-map-logical.c:69: error: format ‘%Lu’ expects type ‘long long
unsigned int’, but argument 4 has type ‘u64’

Fix them.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Hugo Mills <hugo@carfax.org.uk>
2011-10-25 09:18:57 -04:00
Goffredo Baroncelli 17cf679fb3 Improve error handling in the btrfs command
Hi Chris,

below is enclosed a trivial patch, which has the aim to improve the error
reporting of the "btrfs" command.

You can pull from

	http://cassiopea.homelinux.net/git/btrfs-progs-unstable.git

branch

	strerror

I changed every printf("some-error") to something like:

	e = errno;
	fprintf(stderr, "ERROR: .... - %s", strerror(e));

so:

1) all the error are reported to standard error
2) At the end of the message is printed the error as returned by the system.

The change is quite simple, I replaced every printf("some-error") to the line
above. I don't touched anything other.
I also integrated a missing "printf" on the basis of the Ben patch.

This patch leads the btrfs command to be more "user friendly" :-)

Regards
G.Baroncelli

 btrfs-list.c |   40 ++++++++++++++++++++++--------
 btrfs_cmds.c |   77 ++++++++++++++++++++++++++++++++++++++++-----------------
 utils.c      |    6 ++++
 3 files changed, 89 insertions(+), 34 deletions(-)

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-10-25 09:18:31 -04:00
Frederic Weisbecker 7da27f91fc Handle bad extent type case
If we meet a bad extent type, find_updated_files is going
to print random things. Better warn the user about what
happens.

This fixes:

btrfs-list.c: Dans la fonction «find_updated_files» :
btrfs-list.c:668: attention : «disk_offset» may be used uninitialized in this function
btrfs-list.c:668: note: «disk_offset» was declared here
btrfs-list.c:667: attention : «disk_start» may be used uninitialized in this function
btrfs-list.c:667: note: «disk_start» was declared here
btrfs-list.c:666: attention : «len» may be used uninitialized in this function
btrfs-list.c:666: note: «len» was declared here
make: *** [btrfs-list.o] Erreur 1

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-09-23 20:26:50 -04:00
Zhao Lei 6ac03d3a28 Avoid uninitialized variant compile warning
When we compile btrfs-progs in RHEL5(with default gcc version 4.1.2 20070626),
we can get following error:

cc1: warnings being treated as errors
btrfs-list.c: In function 'find_updated_files':
btrfs-list.c:668: warning: 'disk_offset' may be used uninitialized in this function
btrfs-list.c:667: warning: 'disk_start' may be used uninitialized in this function
btrfs-list.c:666: warning: 'len' may be used uninitialized in this function
make: *** [btrfs-list.o] Error 1

These varient are always initialized except inconsistent data in file system.
We can set initial value for these variant for this situation.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
2010-09-23 20:26:49 -04:00
Zhao Lei 6c94ed2479 fix a compile fail by strndup in RHEL5 env
When we compile btrfs-progs in RHEL5(with default gcc 4.1.2 and glibc-2.5-18),
we can get following error:

cc1: warnings being treated as errors
btrfs-list.c: In function 'ino_resolve':
btrfs-list.c:511: warning: implicit declaration of function 'strndup'
btrfs-list.c:511: warning: incompatible implicit declaration of built-in function 'strndup'
make: *** [btrfs-list.o] Error 1
...
cc1: warnings being treated as errors
btrfs.c: In function 'split_command':
btrfs.c:168: warning: implicit declaration of function 'strndup'
btrfs.c:168: warning: incompatible implicit declaration of built-in function 'strndup'
make: *** [btrfs-list.o] Error 1

We can add _GNU_SOURCE definition according man strndup.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
2010-09-23 20:26:49 -04:00
Chris Mason 8f55b769c7 Add btrfs subvol find-new command
btrfs-subvol find-new <subvol> <id> will search through a given subvol
and print out all the files with extents newer than a given id.

Care must be taken to make sure any pending delalloc is on disk before
running this because that won't show up in the output.
2010-03-18 12:32:32 -04:00
Goffredo Baroncelli e584004d3c Avoid the exit(2) function; instead return with an appropriate value; 2010-03-11 22:09:46 -05:00
ghigo 6d2cf04247 new util: 'btrfs'
This commit introduces a new command called 'btrfs' for managing
a btrfs filesystem. 'btrfs' handles:
- snapshot/subvolume creation
- adding/removal of volume (ie: disk)
- defragment of a tree
- scan of a device searching a btrfs filesystem
- re-balancing of the chunk on the disks
- listing subvolumes and snapshots

This has also been updated to include the new defrag range ioctl.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2010-03-11 13:45:47 -05:00
Chris Mason 4ff9e2af17 Add btrfs-list for listing subvolumes
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2010-02-28 15:35:38 -05:00