Displaying 20 results from an estimated 100 matches similar to: "[PATCH 001/001] btrfs: Mechanism to modify the permission of a subvolume"
2009 Jan 19
4
[Patch] Btrfs: use BTRFS_VOL_NAME_MAX for struct btrfs_ioctl_vol_args
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
2008 Jun 30
0
[PATCH] Null terminate strings passed in from userspace
The ''char name[BTRFS_PATH_NAME_MAX]'' member of struct btrfs_ioctl_vol_args
is passed directly to strlen() after being copied from user. I haven''t
verified this, but in theory a userspace program could pass in an
unterminated string and cause a kernel crash as strlen walks off the end of
the array.
This patch terminates the ->name string in all btrfs ioctl functions
2007 Sep 20
0
[patch]use strnlen to deal with string from user space
Hello
I think strlen is unsafe here
Regards
YZ
diff -r 24c661119092 inode.c
--- a/inode.c Mon Sep 17 11:25:58 2007 -0400
+++ b/inode.c Thu Sep 20 22:25:34 2007 +0800
@@ -1985,7 +1988,7 @@ static int btrfs_ioctl_snap_create(struc
if (copy_from_user(&vol_args, arg, sizeof(vol_args)))
return -EFAULT;
- namelen = strlen(vol_args.name);
+ namelen = strnlen(vol_args.name,
2010 Oct 25
2
[PATCH] Btrfs: allow subvol deletion by unprivileged user with -o user_subvol_rm_allowed
Add a mount option user_subvol_rm_allowed that allows users to delete a
(potentially non-empty!) subvol when they would otherwise we allowed to do
an rmdir(2). We duplicate the may_delete() checks from the core VFS code
to implement identical security checks (minus the directory size check).
Signed-off-by: Sage Weil <sage@newdream.net>
---
fs/btrfs/ctree.h | 1 +
fs/btrfs/ioctl.c |
2010 Jul 01
0
[PATCH] btrfs: handle errors for FS_IOC_SETFLAGS
Makes btrfs_ioctl_setflags return -ENOSPC and other errors when
necessary.
Signed-off-by: Sean Bartell <wingedtachikoma@gmail.com>
---
I ran chattr -R on a full FS and btrfs crashed. This overlaps with the patch
series being worked on by Jeff Mahoney.
fs/btrfs/ioctl.c | 17 ++++++++++++-----
1 files changed, 12 insertions(+), 5 deletions(-)
diff --git a/fs/btrfs/ioctl.c
2006 Jun 26
0
[klibc 17/43] sparc32: transfer arch-specific options to /arch.cmd
Boot options which have been obtained in an architecture-specific
fashion have to be copied to /arch.cmd in the rootfs. This implements
that functionality for sparc32; the code is identical to sparc64 minus
the openprom support for obtaining nfsroot options.
Signed-off-by: H. Peter Anvin <hpa at zytor.com>
---
commit fc8c0c09f9dd5139dd8d797eaf9fe33962b6cd2c
tree
2006 Jun 26
0
[klibc 16/43] sparc64: transmit arch-specific options to kinit via /arch.cmd
Sparc64 has support for a bunch of architecture-specific options
taken from the PROM. Convert them to kernel command line form and
write the file /arch.cmd in the rootfs, which can be recovered by
kinit and processed. The kinit support has already been committed.
Signed-off-by: H. Peter Anvin <hpa at zytor.com>
---
commit c6e5c5a77681f5bf6f9fea55d031115e9f58ada6
tree
2013 Dec 16
6
[PATCH 0/3] Send: minor cleanups, add RO checks
First two patches are trivial cleanups that I''ve spotted while reading send.c,
can be applied independently.
The third patch contains the important bits, safety checks that the subvolumes
involved in send do not accidentally lose the RO status. I haven''t seen this
documented anywhere that this is mandatory, implied from how I assume send
works. Please let me know if this is
2012 Jul 31
0
[PATCH V2 1/2] Btrfs: fix error path in create_pending_snapshot()
This patch fixes the following problem:
- If we failed to deal with the delayed dir items, we should abort transaction,
just as its comment said. Fix it.
- If root reference or root back reference insertion failed, we should
abort transaction. Fix it.
- Do not restore the trans->rsv if we doesn''t change it.
- make the error path more clearly.
Signed-off-by: Miao Xie
2010 Jul 26
6
[PATCH] Btrfs: compressed file size ioctl
Returns a file''s size on disk. Had been posted by Chris Ball over a year ago
(http://article.gmane.org/gmane.comp.file-systems.btrfs/2873). Chris Mason
suggested a couple of improvements back then, which I have implemented in
this version:
- use u64 to return the result
- replaced the loop
while (1) {
struct btrfs_ordered_extent *ordered;
2013 Feb 01
0
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When
2012 Sep 06
2
[PATCH V4 01/12] Btrfs: fix error path in create_pending_snapshot()
This patch fixes the following problem:
- If we failed to deal with the delayed dir items, we should abort transaction,
just as its comment said. Fix it.
- If root reference or root back reference insertion failed, we should
abort transaction. Fix it.
- Fix the double free problem of pending->inherit.
- Do not restore the trans->rsv if we doesn''t change it.
- make the error path
2011 Aug 23
40
[PATCH 00/21] [RFC] Btrfs: restriper
Hello,
This patch series adds an initial implementation of restriper (it''s a
clever name for relocation framework that allows to do selective profile
changing and selective balancing with some goodies like pausing/resuming
and reporting progress to the user.
Profile changing is global (per-FS) so far, per-subvolume profiles
require some discussion and can be implemented in future.
2007 Jun 15
1
[PATCH RFC] add domain builder support for bzImage kernels
This implements a loader for version 2.07 boot protocol bzImage format
files. This allows a single bzImage kernel file to boot either native
from a normal bootloader (grub, etc), or paravirtualized under Xen.
These bzImages have two changes to make this possible:
1. There's a new field for the bootloader to tell the booted kernel
what kind of environment its coming up under. We
2007 Jun 15
1
[PATCH RFC] add domain builder support for bzImage kernels
This implements a loader for version 2.07 boot protocol bzImage format
files. This allows a single bzImage kernel file to boot either native
from a normal bootloader (grub, etc), or paravirtualized under Xen.
These bzImages have two changes to make this possible:
1. There's a new field for the bootloader to tell the booted kernel
what kind of environment its coming up under. We
2007 Jun 15
1
[PATCH RFC] add domain builder support for bzImage kernels
This implements a loader for version 2.07 boot protocol bzImage format
files. This allows a single bzImage kernel file to boot either native
from a normal bootloader (grub, etc), or paravirtualized under Xen.
These bzImages have two changes to make this possible:
1. There's a new field for the bootloader to tell the booted kernel
what kind of environment its coming up under. We
2010 Oct 25
14
[PATCH 0/6] Btrfs commit fixes, async subvol operations
Hi Chris,
This is the extent of my current queue of Btrfs snapshot/subvol/commit
stuff. Most of these were posted several months ago. Can be sent
upstream during this merge window? Not having this functionality is
becoming a bit of a roadblock for our efforts to keep the Ceph data in a
consistent state.
These patches are also available from
2008 Oct 27
0
[PATCH 3/4] update nodatacow code
Hello,
This patch simplifies the nodatacow checker. If all references
were created after the latest snapshot, then we can avoid COW
safely. This patch also updates run_delalloc_nocow to do more
fine-grained checking.
Regards
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
---
diff -urp 3/fs/btrfs/ctree.h 4/fs/btrfs/ctree.h
--- 3/fs/btrfs/ctree.h 2008-10-27 16:31:51.000000000 +0800
+++
2009 Nov 10
12
[RFC] big fat transaction ioctl
Hi all,
This is an alternative approach to atomic user transactions for btrfs.
The old start/end ioctls suffer from some basic limitations, namely
- We can''t properly reserve space ahead of time to avoid ENOSPC part
way through the transaction, and
- The process may die (seg fault, SIGKILL) part way through the
transaction. Currently when that happens the partial transaction will
2010 Mar 22
5
[PATCH 0/5] asynchronous commit, snapshot ponies
Hi everyone,
This patchset is the latest approach I''m using for the Ceph storage daemon to
keep track of which data has safely committed to disk. The basic idea is to
not use the (problematic) user transaction ioctls at all. Instead, the daemon
quiesces its own write requests, initiates an async snapshot, and then
continues.
The snapshot approach is nice because it provides rollback.