similar to: [RFC] btrfs, udev and btrfs

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 +++

Hi, on my system the klibc/ash ( 0.197 ) doesn't compile: [ghigo@therra ash]$ pwd /home/ghigo/klibc/klibc-0.197/ash [ghigo@therra ash]$ make [...] gcc -Wp,-MD,.arith_lex.d -mregparm=3 -DREGPARM=3 -march=i386 -Os -g -falign-functions=0 -falign-jumps=0 -falign-loops=0 -nostdinc -iwithprefix include -D__KLIBC__ -DBITSIZE=32 -I../include/arch/i386 -I../include/bits32 -I../include

Thanks for the quick reply! But I still have problems with btrfsctl: > stat /dev/btrfs-control File: `/dev/btrfs-control'' Size: 0 Blocks: 0 IO Block: 4096 block special file Device: ch/12d Inode: 659848 Links: 1 Device type: a,3e Access: (0644/brw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2010-01-09 11:31:15.757979602 +0100

Hi all, this patch include in /proc/mount the info about which subvolume is mounted and which metadata_ratio value is used. $ cat /proc/mounts rootfs / rootfs rw 0 0 [...] /dev/sdc /tmp/t4 btrfs rw,relatime,metadata_ratio=20 0 0 /dev/sdc /mnt/btrfs btrfs rw,relatime,degraded,metadata_ratio=20,subvol=snap- of-root 0 0 BR G.Baroncelli commit 3d7ea7bbd70a66c4d0f369b2879c503b722e8834 Author:

Hi all, I suffered a lot for the terrific performance of aptitude on a BTRFS filesystem. I don''t think that BTRFS is a slow filesystem, but it seems that some aptitude (or dpkg) patterns are capable to highlight the btrfs slowness in some corner case. In order to alleviate this problem, I wrote a small script which calls aptitude with the LD_PRELOAD libeatmyadata library. And now I

Hello, Sorry if this question is a FAQ, but I don't find it anywere. Does klibc support dynamic linking ? TIA -- gpg key@ keyserver.linux.it: Goffredo Baroncelli (ghigo) <kreijack@inwind.it> Key fingerprint = CE3C 7E01 6782 30A3 5B87 87C0 BB86 505C 6B2A CFF9

Hi all, following the thread about the BTRFS_IOC_TREE_SEARCH ioctl [1], I made a patch which try to address the problem of restarting the ioctl. In the current solution is the application during the restart of the search to fill the min_* fields in the "struct btrfs_ioctl_search_key". In general the values set are the last one returned "+1". But doing so we reduce the

Hi, Let me know if this is the wrong place to ask... I''m using Fedora 12 x86_64, mostly with the newer 21.6.32 kernel, and have a single btrfs filesystem within a 120Gb partition. I''d like to extend the space btrfs can use. One option is presumably add a new device to btrfs, but I was hoping to simple resize the existing partition to say 160Gb. With ext4 I might do

On Sun, Feb 21, 2010 at 8:40 AM, Goffredo Baroncelli <kreijack@gmail.com> wrote: >       filesystem resize [+/-]<size>[gkm]|max <filesystem> -filesystem resize [+/-]<size>[gkm]|max <filesystem> +filesystem resize [+/-]<size>[gkm]|max <dev> This command works on devices, not paths. >              Resize a filesystem identified by <path>.  The

Hi all, enclose a patch to improve the "btrfs subvolume find-new" command. This is a RFC because it is not finished, but it is an usable state and may be discussed. The aim of this patch is: - take in account not only an update of the extent but also an update of the inode and xattr (which includes the acl) - extract the generation reference number directly from a snapshot The new

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all, this is a new attempt to improve the output of the command "btrfs fi df". The previous attempt received a good reception. However there was no a general consensus about the wording. Moreover I still didn''t understand how btrfs was using the disks. A my first attempt was to develop a new command which shows how the disks

Hi Li, >----Messaggio originale---- >Da: lizf@cn.fujitsu.com >Data: 30/11/2010 8.03 >A: <kreijack@libero.it> >Cc: <linux-btrfs@vger.kernel.org> >Ogg: Re: [PATCH 5/5] btrfs: Add ioctl to set snapshot readonly/writable > >Goffredo Baroncelli wrote: >> Hi Li, >> >> On Monday, 29 November, 2010, Li Zefan wrote: >>> This allows us to set

Hi, I am compiling a tiny linux kernel 2.6.10 to be used together with linuxbios. The boot phase will go as follows: linuxbios->tiny linux kernel->initramfs The initramfs shall use dhcp to get it's address and then tftp a full featured kernel. This kernel must be started through kexec. I use a tweaked networkdriver in the kernel and cannot use a normal PXE boot. Which files should I

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

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 @@

''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

Fedora provides yum-fs-snapshot. If installed, on each package installation or update a snapshot of all btrfs filesystems is taken, so it is possible to revert the installation/update. Suppose an update failed and I want to get back: with # btrfs subvolume set-default yum-snapshot-whatever / I define which snapshot to use at the next boot. After rebooting I decide I really want to stay with

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