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...t-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://people.redhat.com/~rjones/virt-df/ --qyHYMwAXsHLOQihY Content-Type: message/rfc822 Content-Disposition: inline Content-Transfer-Encoding: 8bit Return-Path: david@fromorbit.com X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on rhmail.home.annexia.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_LOW, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from mail.corp.redhat.com [10.4.203.66] by rhmail.home.annexi...

after install libguestfs_xfs, all results are: [using guestfish] guestfish -N fs:xfs -m /dev/sda1 statvfs / bsize: 4096 frsize: 4096 blocks: 24713 bfree: 23391 bavail: 23391 files: 51136 ffree: 51133 favail: 51133 fsid: 2049 flag: 4096 namemax: 255 [using virt-rescure] virt-rescue -a test1.img ><rescue> mount /dev/sda1 /sysroot ><rescue> stat -f /sysroot File:

...port synchronous mappings for non-DAX files and > + * for DAX files if underneath dax_device is not synchronous. > */ /* * This is the correct multi-line comment format. Please * update the patch to maintain the existing comment format. */ Cheers, Dave. -- Dave Chinner david at fromorbit.com

...port synchronous mappings for non-DAX files and > + * for DAX files if underneath dax_device is not synchronous. > */ /* * This is the correct multi-line comment format. Please * update the patch to maintain the existing comment format. */ Cheers, Dave. -- Dave Chinner david at fromorbit.com

...node)) vma->vm_flags |= VM_HUGEPAGE; return 0; } Even better, factor out all the "MAP_SYNC supported" checks into a helper so that the filesystem code just doesn't have to care about the details of checking for DAX+MAP_SYNC support.... Cheers, Dave. -- Dave Chinner david at fromorbit.com

...node)) vma->vm_flags |= VM_HUGEPAGE; return 0; } Even better, factor out all the "MAP_SYNC supported" checks into a helper so that the filesystem code just doesn't have to care about the details of checking for DAX+MAP_SYNC support.... Cheers, Dave. -- Dave Chinner david at fromorbit.com

...e expecting ENXIO when trying to find a specific data or hole location once it has occurred. Thanks Dave for pointing that out in XFS thread. This patch fix it to return EUCLEAN, or maybe another particular errno is more reasonable in Btrfs to indicate this fatal error? Thanks, -Jeff Cc: david@fromorbit.com Signed-off-by: Jie Liu <jeff.liu@oracle.com> --- fs/btrfs/file.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 97fbe93..6693040 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1761,7 +1761,7 @@ static int find_...

Hi, when mounting an intentionally corrupted btrfs filesystem i get the following warning and bug message. The image can be found here www.cccmz.de/~snakebyte/btrfs.2.img.bck.bz2 [ 297.406152] device fsid e14cf01de423381a-4bd40b603870018a <6>devid 2147483649 transid 9 /dev/loop0 [ 297.411937] ------------[ cut here ]------------ [ 297.412207] WARNING: at fs/btrfs/disk-io.c:805

This is based on Linux 5.7, plus one prerequisite patch: "mm/gup: update pin_user_pages.rst for "case 3" (mmu notifiers)" [1] Changes since v1: removed references to set_page_dirty*(), in response to Souptick Joarder's review (thanks!). Cover letter for v1, edited/updated slightly: It recently became clear to me that there are some get_user_pages*() callers that

From: John Hubbard <jhubbard at nvidia.com> Hi, This is mostly Jerome's work, converting the block/bio and related areas to call put_user_page*() instead of put_page(). Because I've changed Jerome's patches, in some cases significantly, I'd like to get his feedback before we actually leave him listed as the author (he might want to disown some or all of these). I added a

From: John Hubbard <jhubbard at nvidia.com> Hi, This is mostly Jerome's work, converting the block/bio and related areas to call put_user_page*() instead of put_page(). Because I've changed Jerome's patches, in some cases significantly, I'd like to get his feedback before we actually leave him listed as the author (he might want to disown some or all of these). I added a

...itbricks.com> Tested-by: Dongsu Park <dongsu.park at profitbricks.com> Cc: Ming Lei <tom.leiming at gmail.com> Cc: Jens Axboe <axboe at kernel.dk> Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: Jeff Layton <jlayton at poochiereds.net> Cc: Dave Chinner <david at fromorbit.com> Cc: "Michael S. Tsirkin" <mst at redhat.com> Cc: Lukas Czerner <lczerner at redhat.com> Cc: Christoph Hellwig <hch at lst.de> Cc: virtualization at lists.linux-foundation.org --- block/blk-merge.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) d...

...itbricks.com> Tested-by: Dongsu Park <dongsu.park at profitbricks.com> Cc: Ming Lei <tom.leiming at gmail.com> Cc: Jens Axboe <axboe at kernel.dk> Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: Jeff Layton <jlayton at poochiereds.net> Cc: Dave Chinner <david at fromorbit.com> Cc: "Michael S. Tsirkin" <mst at redhat.com> Cc: Lukas Czerner <lczerner at redhat.com> Cc: Christoph Hellwig <hch at lst.de> Cc: virtualization at lists.linux-foundation.org --- block/blk-merge.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) d...

Hi, It recently became clear to me that there are some get_user_pages*() callers that don't fit neatly into any of the four cases that are so far listed in pin_user_pages.rst. vhost.c is one of those. Add a Case 5 to the documentation, and refer to that when converting vhost.c. Thanks to Jan Kara for helping me (again) in understanding the interaction between get_user_pages() and page

...re we okay with this? Sure. I'm not sure I agree with all the analysis presented, but, well, I haven't looked any deeper because I'm tired of being shouted at and being called argumentative for daring to ask hard questions about this topic.... Cheers, Dave. -- Dave Chinner david at fromorbit.com

...bout > > the details of checking for DAX+MAP_SYNC support.... > > Seconded, since ext4 has nearly the same flag validation logic. Agree. Thanks, Pankaj > > --D > > > > > Cheers, > > > > Dave. > > -- > > Dave Chinner > > david at fromorbit.com >

...just doesn't have to care about > the details of checking for DAX+MAP_SYNC support.... o.k. Will add one common helper function for both ext4 & xfs filesystems. Thanks for the suggestion. Best regards, Pankaj > > Cheers, > > Dave. > -- > Dave Chinner > david at fromorbit.com >

...files if underneath dax_device is not synchronous. > > */ > > /* > * This is the correct multi-line comment format. Please > * update the patch to maintain the existing comment format. > */ > > Cheers, > > Dave. > -- > Dave Chinner > david at fromorbit.com

...ge dirty, unpin" case. Add a fifth case, to help explain that there is a general pattern that requires pin_user_pages*() API calls. Cc: Vlastimil Babka <vbabka at suse.cz> Cc: Jan Kara <jack at suse.cz> Cc: J?r?me Glisse <jglisse at redhat.com> Cc: Dave Chinner <david at fromorbit.com> Cc: Jonathan Corbet <corbet at lwn.net> Cc: linux-doc at vger.kernel.org Cc: linux-fsdevel at vger.kernel.org Signed-off-by: John Hubbard <jhubbard at nvidia.com> --- Documentation/core-api/pin_user_pages.rst | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --g...

...ge dirty, unpin" case. Add a fifth case, to help explain that there is a general pattern that requires pin_user_pages*() API calls. Cc: Vlastimil Babka <vbabka at suse.cz> Cc: Jan Kara <jack at suse.cz> Cc: J?r?me Glisse <jglisse at redhat.com> Cc: Dave Chinner <david at fromorbit.com> Cc: Jonathan Corbet <corbet at lwn.net> Cc: linux-doc at vger.kernel.org Cc: linux-fsdevel at vger.kernel.org Signed-off-by: John Hubbard <jhubbard at nvidia.com> --- Documentation/core-api/pin_user_pages.rst | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git...