similar to: btrfsctl -a doesn't find my btrfs

''btrfsctl -A /path/to/device/file'' would only scan for a valid btrfs on the device using volume recognition helpers. --- btrfsctl.c | 42 ++++++++++++++++++++++++++++++++++++------ 1 files changed, 36 insertions(+), 6 deletions(-) diff --git a/btrfsctl.c b/btrfsctl.c index 66c4e89..61020de 100644 --- a/btrfsctl.c +++ b/btrfsctl.c @@ -34,6 +34,8 @@ #include

We should avoid using non multi-path (mp) path for mp disks As of now there is no good way (like api) to check that. A workaround way is to check if the O_EXCL open is unsuccessful. This is safe since otherwise the BTRFS_IOC_SCAN_DEV ioctl would fail if the disk-path can not be opened with the flag O_EXCL set. This patch also includes some (error) print format changes related to the btrfs

Hi all, the commands "btrfs filesystem show" and "btrfs device scan" look at the /dev directory (and it subdirectories) for every block devices. This is a slow process because floppy and cdrom are also checked. Moreover, as highlighted by Helmut, if udev is not used, the /dev directory is populated by high number of non-existant devices, which slow the process. My patch

This adds ioctl BTRFS_IOC_GET_FSIDS which reads the fs info through the btrfs-control Signed-off-by: Anand Jain <anand.jain@oracle.com> --- fs/btrfs/super.c | 47 ++++++++++++++++++++++++++++++++++++++----- fs/btrfs/volumes.c | 33 ++++++++++++++++++++++++++++++ fs/btrfs/volumes.h | 2 + include/uapi/linux/btrfs.h | 19 +++++++++++++++++ 4 files changed,

Add man/btrfsctl.8.in Signed-off-by: Goldwyn Rodrigues <rgoldwyn@gmail.com> --- man/btrfsctl.8.in | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 45 insertions(+), 0 deletions(-) create mode 100644 man/btrfsctl.8.in diff --git a/man/btrfsctl.8.in b/man/btrfsctl.8.in new file mode 100644 index 0000000..e11f46a --- /dev/null +++ b/man/btrfsctl.8.in @@ -0,0 +1,45 @@

[root@btrfs progs-unstable]# btrfsctl -A /dev/sdb ioctl returns 0 [root@btrfs progs-unstable]# btrfsctl -A /dev/sdc ioctl returns 0 /dev/sdb has a btrfs, while /dev/sdc is blank. What''s that output supposed to mean ? Is it a bug ? -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info

I found userspace tool, btrfsctl, uses BTRFS_VOL_NAME_MAX, and it also looks that this one is more proper. Kill BTRFS_PATH_NAME_MAX since no one will use it. Signed-off-by: WANG Cong <wangcong@zeuux.org> Cc: Chris Mason <chris.mason@oracle.com> --- diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index c2aa33e..f229950 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -472,7

Signed-off-by: Goldwyn Rodrigues <rgoldwyn@gmail.com> --- man/Makefile | 27 +++++++++++++++++++++++++++ man/btrfsck.8.in | 17 +++++++++++++++++ 2 files changed, 44 insertions(+), 0 deletions(-) create mode 100644 man/Makefile create mode 100644 man/btrfsck.8.in diff --git a/man/Makefile b/man/Makefile new file mode 100644 index 0000000..2665dd1 --- /dev/null +++ b/man/Makefile

Split CFLAGS into CFLAGS (user part) and AM_CFLAGS (not-so-user part; variable name taken from automake, but otherwise no relation). Also add LDFLAGS. This allows me to use `make CFLAGS="-O2 -fPIE" LDFLAGS="-pie"` without dropping the other important (AM_CFLAGS) flags. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> --- btrfs-progs/Makefile | 17

Hello, I''ve just pulled btrfs-progs from the new git repo git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs.git However, when I come to make it fails like so: gcc -Wp,-MMD,./.btrfsctl.o.d,-MT,btrfsctl.o -Wall -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2 -g -Werror -Os -c btrfsctl.c gcc -g -Werror -Os -o btrfsctl btrfsctl.o ctree.o disk-io.o radix-tree.o extent-tree.o

add man/btrfs-image.8.in Signed-off-by: Peng Tao <bergwolf@gmail.com> --- man/Makefile | 5 ++++- man/btrfs-image.8.in | 34 ++++++++++++++++++++++++++++++++++ 2 files changed, 38 insertions(+), 1 deletions(-) create mode 100644 man/btrfs-image.8.in diff --git a/man/Makefile b/man/Makefile index 2665dd1..b7a7340 100644 --- a/man/Makefile +++ b/man/Makefile @@ -6,7 +6,7 @@

Signed-off-by: Jie Liu <jeff.liu@oracle.com> --- fs/btrfs/super.c | 10 ++++++++-- 1 files changed, 8 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 15634d4..16f31e1 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -406,7 +406,7 @@ static int btrfs_parse_early_options(const char *options, fmode_t flags, u64 *subvol_rootid, struct

Hi all, below a configuration for udev/initramfs which I propose to scan the block devices looking for a multi-volume btrfs filesystem. Btrfs has the capability to span a file-system on multiple device. In order to do that, the involved devices have to be "registered" in the kernel. In order to do that there are two options: # btrfs device scan <device> (or the old

Hello everyone, Btrfs v0.10 is now available for download from: http://oss.oracle.com/projects/btrfs/ Btrfs is still in an early alpha state, and the disk format is not finalized. v0.10 introduces a new disk format, and is not compatible with v0.9. The core of this release is explicit back references for all metadata blocks, data extents, and directory items. These are a crucial building

Hello everyone, Btrfs v0.10 is now available for download from: http://oss.oracle.com/projects/btrfs/ Btrfs is still in an early alpha state, and the disk format is not finalized. v0.10 introduces a new disk format, and is not compatible with v0.9. The core of this release is explicit back references for all metadata blocks, data extents, and directory items. These are a crucial building

Hello everyone, Just before I head off to xmas vacation, I've pushed out my current queue of unstable things to the unstable tree. The big changes are the online resize, and a very very simple form of ENOSPC detection: btrfsctl -r new_size /mount_point new_size can be an absolute number: btrfsctl -r 8g /mount_point or it can be an relative number: # add 4GB btrfsctl -r +4g /mount_point

Hello, This patch adds rollback support for the converter, the converter can roll back a conversion if the image file haven't been modified. In addition, I rearrange some codes in convert.c and add a few comments. Regards YZ --- diff -r 12138d4beeb0 convert.c --- a/convert.c Fri Jan 04 11:29:55 2008 -0500 +++ b/convert.c Mon Jan 07 23:35:25 2008 +0800 @@ -33,6 +33,7 @@ #include

From: Sergei Trofimovich <slyfox@gentoo.org> $ LDFLAGS=-static make gcc -lpthread -g -O0 -o btrfs btrfs.o btrfs_cmds.o scrub.o \ ctree.o disk-io.o radix-tree.o extent-tree.o print-tree.o root-tree.o dir-item.o file-item.o inode-item.o inode-map.o crc32c.o rbtree.o extent-cache.o extent_io.o volumes.o utils.o btrfs-list.o btrfslabel.o -static -luuid scrub.o: In function

This is the source code of the man page of btrfs. The main changes from my previous patch are: - Rearranged the short command in order to avoid conflicts - Renamed the ''create'' verb is ''subvolume'' Thanks to Daniel for some tweaks on the syntax BR G.Baroncelli diff --git a/man/Makefile b/man/Makefile index 4e8893b..4a90b75 100644 --- a/man/Makefile +++

From: Hugo Mills <h.r.mills@reading.ac.uk> btrfs-find-root isn''t yet integrated into the main btrfs tool, and is an important recovery tool, so it deserves to be built as a static binary. Signed-off-by: Hugo Mills <hugo@carfax.org.uk> --- Makefile | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/Makefile b/Makefile index d102dee..c519d21 100644