similar to: [PATCH 3/3] ocfs2: Add freeze protection to ocfs2_file_splice_write()

ocfs2_file_splice_write() was missed when adding freeze protection to all write paths. Fix that. CC: Joel Becker <jlbec at evilplan.org> CC: ocfs2-devel at oss.oracle.com Signed-off-by: Jan Kara <jack at suse.cz> --- fs/ocfs2/file.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 3898499..1f6916c 100644 ---

Provide a splice_read stub for ocfs2. This emits trace lines and does an atime lock/update before calling filemap_splice_read(). It doesn't do this for around direct_splice_read() as that will call ->read_iter(). A couple of new tracepoints are added for this purpose. Signed-off-by: David Howells <dhowells at redhat.com> cc: Christoph Hellwig <hch at lst.de> cc: Al Viro

Provide a splice_read stub for ocfs2. This emits trace lines and does an atime lock/update before calling filemap_splice_read(). Splicing from direct I/O is handled by the caller. A couple of new tracepoints are added for this purpose. Signed-off-by: David Howells <dhowells at redhat.com> cc: Christoph Hellwig <hch at lst.de> cc: Al Viro <viro at zeniv.linux.org.uk> cc: Jens

It''s safe and easy to do so, provided the ranges don''t overlap. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> --- fs/btrfs/ioctl.c | 23 ++++++++++++++++------- 1 files changed, 16 insertions(+), 7 deletions(-) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 0b06a5c..8fcd671 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -2223,8 +2223,6 @@ static

Signed-off-by: Dave Kleikamp <dave.kleikamp at oracle.com> Acked-by: Joel Becker <jlbec at evilplan.org> Cc: Zach Brown <zab at zabbo.net> Cc: Mark Fasheh <mfasheh at suse.com> Cc: ocfs2-devel at oss.oracle.com --- fs/ocfs2/aops.h | 2 +- fs/ocfs2/file.c | 55 ++++++++++++++++++++++---------------------------- fs/ocfs2/ocfs2_trace.h | 6 +++--- 3 files

Signed-off-by: Tiger Yang <tiger.yang at oracle.com> --- Config.make.in | 1 + configure.in | 6 ++++++ fs/ocfs2/Makefile | 4 ++++ kapi-compat/include/pipe_buf_operations.h | 10 ++++++++++ 4 files changed, 21 insertions(+), 0 deletions(-) create mode 100644 kapi-compat/include/pipe_buf_operations.h

From: Zach Brown <zab@zabbo.net> ocfs2''s .aio_read and .aio_write methods are changed to take iov_iter and pass it to generic functions. Wrappers are made to pack the iovecs into iters and call these new functions. Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com> Cc: Zach Brown <zab@zabbo.net> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker

Pre-allocate space for data relocation. This can detect ENOPSC condition caused by fragmentation of free space. Signed-off-by: Yan Zheng <zheng.yan@oracle.com> --- diff -urp 2/fs/btrfs/ctree.h 3/fs/btrfs/ctree.h --- 2/fs/btrfs/ctree.h 2010-04-26 17:28:20.493839748 +0800 +++ 3/fs/btrfs/ctree.h 2010-04-26 17:28:20.498830465 +0800 @@ -2419,6 +2419,9 @@ int btrfs_cont_expand(struct inode *inod

Hi all - looks like I have a kernel dieing on me. This is an AMD 6400+ with 4 GIG ram. I am using ext3 and software raid on 500G drives. (2) of them. I have an external 1T usb disk connected for backup. This is running 2.6.23.9 as I wanted to use kvm-amd. It has died on me twice. Funny thing is it happens when I am NOT using the machine. Any thoughts? Jerry -------------- Dec 8 22:23:57

I have the exact same issue on several Sunfire v20z (hardware LSI RAID controler). Under high IO load, the raid controler starts complaining with disk errors : [163442.483878] mptbase: ioc0: LogInfo(0x11070000): F/W: DMA Error [163445.172333] sd 2:0:0:0: [sda] Unhandled error code [163445.172338] sd 2:0:0:0: [sda] Result: hostbyte=DID_SOFT_ERROR driverbyte=DRIVER_OK [163445.172345] sd 2:0:0:0:

Now in ocfs2_local_free_info(), it returns 0 even if it actually fails. Though it doesn't cause any real problem since the only caller dquot_disable() ignores the return value, we'd better return correct as it is. Signed-off-by: Joseph Qi <joseph.qi at linux.alibaba.com> --- fs/ocfs2/quota_local.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git

Add pipe_lock/unlock for splice_write to avoid oops by following competition: (1) An application gets fds of a trace buffer, virtio-serial, pipe. (2) The application does fork() (3) The processes execute splice_read(trace buffer) and splice_write(virtio-serial) via same pipe. <parent> <child> get fds of a trace buffer, virtio-serial, pipe

Hi, The following series of patches implements in btrfs an ioctl to do out-of-band deduplication of file extents. To be clear, this means that the file system is mounted and running, but the dedupe is not done during file writes, but after the fact when some userspace software initiates a dedupe. The primary patch is loosely based off of one sent by Josef Bacik back in January, 2011.

On Thu, Nov 13, 2014 at 10:23:29PM +0100, Pieter Smith wrote: > Compile out splice support from virtio character driver when the splice-family > of syscalls is not supported by the system (i.e. CONFIG_SYSCALL_SPLICE is > undefined). > > Signed-off-by: Pieter Smith <pieter at boesman.nl> > --- > drivers/char/virtio_console.c | 4 +++- > 1 file changed, 3

Compile out splice support from virtio character driver when the splice-family of syscalls is not supported by the system (i.e. CONFIG_SYSCALL_SPLICE is undefined). Signed-off-by: Pieter Smith <pieter at boesman.nl> --- drivers/char/virtio_console.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index

Compile out splice support from virtio character driver when the splice-family of syscalls is not supported by the system (i.e. CONFIG_SYSCALL_SPLICE is undefined). Signed-off-by: Pieter Smith <pieter at boesman.nl> --- drivers/char/virtio_console.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index

an allocated buffer doesn't need to be tied to a vq - only vq->vdev is ever used. Pass the function the just what it needs - the vdev. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- drivers/char/virtio_console.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index

Eric Biggers <ebiggers at kernel.org> wrote: > static __poll_t > pipe_poll(struct file *filp, poll_table *wait) > { > __poll_t mask; > struct pipe_inode_info *pipe = filp->private_data; > unsigned int head = READ_ONCE(pipe->head); > unsigned int tail = READ_ONCE(pipe->tail); > > poll_wait(filp, &pipe->wait,

On Sat, Apr 21, 2018 at 09:30:05AM +0200, Greg Kroah-Hartman wrote: > On Fri, Apr 20, 2018 at 09:18:01PM +0300, Michael S. Tsirkin wrote: > > an allocated buffer doesn't need to be tied to a vq - > > only vq->vdev is ever used. Pass the function the > > just what it needs - the vdev. > > > > Signed-off-by: Michael S. Tsirkin <mst at redhat.com> >

Quit from splice_write if pipe->nrbufs is 0 for avoiding oops in virtio-serial. When an application was doing splice from a kernel buffer to virtio-serial on a guest, the application received signal(SIGINT). This situation will normally happen, but the kernel executed a kernel panic by oops as follows: BUG: unable to handle kernel paging request at ffff882071c8ef28 IP: