<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/fs, branch v5.2-rc5</title>
<subtitle>Linux kernel source tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/'/>
<entry>
<title>Merge tag 'gfs2-v5.2.fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2</title>
<updated>2019-06-15T03:27:12+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2019-06-15T03:27:12+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=4066524401724babc5710b0a6be88021a081874a'/>
<id>4066524401724babc5710b0a6be88021a081874a</id>
<content type='text'>
Pull gfs2 fix from Andreas Gruenbacher:
 "Fix rounding error in gfs2_iomap_page_prepare"

* tag 'gfs2-v5.2.fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: Fix rounding error in gfs2_iomap_page_prepare
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull gfs2 fix from Andreas Gruenbacher:
 "Fix rounding error in gfs2_iomap_page_prepare"

* tag 'gfs2-v5.2.fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: Fix rounding error in gfs2_iomap_page_prepare
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'for-linus-20190614' of git://git.kernel.dk/linux-block</title>
<updated>2019-06-15T01:41:18+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2019-06-15T01:41:18+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=7b10315128c697b32c3a920cd79a8301c7466637'/>
<id>7b10315128c697b32c3a920cd79a8301c7466637</id>
<content type='text'>
Pull block fixes from Jens Axboe:

 - Remove references to old schedulers for the scheduler switching and
   blkio controller documentation (Andreas)

 - Kill duplicate check for report zone for null_blk (Chaitanya)

 - Two bcache fixes (Coly)

 - Ensure that mq-deadline is selected if zoned block device is enabled,
   as we need that to support them (Damien)

 - Fix io_uring memory leak (Eric)

 - ps3vram fallout from LBDAF removal (Geert)

 - Redundant blk-mq debugfs debugfs_create return check cleanup (Greg)

 - Extend NOPLM quirk for ST1000LM024 drives (Hans)

 - Remove error path warning that can now trigger after the queue
   removal/addition fixes (Ming)

* tag 'for-linus-20190614' of git://git.kernel.dk/linux-block:
  block/ps3vram: Use %llu to format sector_t after LBDAF removal
  libata: Extend quirks for the ST1000LM024 drives with NOLPM quirk
  bcache: only set BCACHE_DEV_WB_RUNNING when cached device attached
  bcache: fix stack corruption by PRECEDING_KEY()
  blk-mq: remove WARN_ON(!q-&gt;elevator) from blk_mq_sched_free_requests
  blkio-controller.txt: Remove references to CFQ
  block/switching-sched.txt: Update to blk-mq schedulers
  null_blk: remove duplicate check for report zone
  blk-mq: no need to check return value of debugfs_create functions
  io_uring: fix memory leak of UNIX domain socket inode
  block: force select mq-deadline for zoned block devices
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull block fixes from Jens Axboe:

 - Remove references to old schedulers for the scheduler switching and
   blkio controller documentation (Andreas)

 - Kill duplicate check for report zone for null_blk (Chaitanya)

 - Two bcache fixes (Coly)

 - Ensure that mq-deadline is selected if zoned block device is enabled,
   as we need that to support them (Damien)

 - Fix io_uring memory leak (Eric)

 - ps3vram fallout from LBDAF removal (Geert)

 - Redundant blk-mq debugfs debugfs_create return check cleanup (Greg)

 - Extend NOPLM quirk for ST1000LM024 drives (Hans)

 - Remove error path warning that can now trigger after the queue
   removal/addition fixes (Ming)

* tag 'for-linus-20190614' of git://git.kernel.dk/linux-block:
  block/ps3vram: Use %llu to format sector_t after LBDAF removal
  libata: Extend quirks for the ST1000LM024 drives with NOLPM quirk
  bcache: only set BCACHE_DEV_WB_RUNNING when cached device attached
  bcache: fix stack corruption by PRECEDING_KEY()
  blk-mq: remove WARN_ON(!q-&gt;elevator) from blk_mq_sched_free_requests
  blkio-controller.txt: Remove references to CFQ
  block/switching-sched.txt: Update to blk-mq schedulers
  null_blk: remove duplicate check for report zone
  blk-mq: no need to check return value of debugfs_create functions
  io_uring: fix memory leak of UNIX domain socket inode
  block: force select mq-deadline for zoned block devices
</pre>
</div>
</content>
</entry>
<entry>
<title>gfs2: Fix rounding error in gfs2_iomap_page_prepare</title>
<updated>2019-06-14T16:49:07+00:00</updated>
<author>
<name>Andreas Gruenbacher</name>
<email>agruenba@redhat.com</email>
</author>
<published>2019-06-08T12:09:02+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=2741b6723bf6f7d92d07c44bd6a09c6e37f3f949'/>
<id>2741b6723bf6f7d92d07c44bd6a09c6e37f3f949</id>
<content type='text'>
The pos and len arguments to the iomap page_prepare callback are not
block aligned, so we need to take that into account when computing the
number of blocks.

Fixes: d0a22a4b03b8 ("gfs2: Fix iomap write page reclaim deadlock")
Signed-off-by: Andreas Gruenbacher &lt;agruenba@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The pos and len arguments to the iomap page_prepare callback are not
block aligned, so we need to take that into account when computing the
number of blocks.

Fixes: d0a22a4b03b8 ("gfs2: Fix iomap write page reclaim deadlock")
Signed-off-by: Andreas Gruenbacher &lt;agruenba@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>fs/ocfs2: fix race in ocfs2_dentry_attach_lock()</title>
<updated>2019-06-14T03:34:56+00:00</updated>
<author>
<name>Wengang Wang</name>
<email>wen.gang.wang@oracle.com</email>
</author>
<published>2019-06-13T22:56:01+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=be99ca2716972a712cde46092c54dee5e6192bf8'/>
<id>be99ca2716972a712cde46092c54dee5e6192bf8</id>
<content type='text'>
ocfs2_dentry_attach_lock() can be executed in parallel threads against the
same dentry.  Make that race safe.  The race is like this:

            thread A                               thread B

(A1) enter ocfs2_dentry_attach_lock,
seeing dentry-&gt;d_fsdata is NULL,
and no alias found by
ocfs2_find_local_alias, so kmalloc
a new ocfs2_dentry_lock structure
to local variable "dl", dl1

               .....

                                    (B1) enter ocfs2_dentry_attach_lock,
                                    seeing dentry-&gt;d_fsdata is NULL,
                                    and no alias found by
                                    ocfs2_find_local_alias so kmalloc
                                    a new ocfs2_dentry_lock structure
                                    to local variable "dl", dl2.

                                                   ......

(A2) set dentry-&gt;d_fsdata with dl1,
call ocfs2_dentry_lock() and increase
dl1-&gt;dl_lockres.l_ro_holders to 1 on
success.
              ......

                                    (B2) set dentry-&gt;d_fsdata with dl2
                                    call ocfs2_dentry_lock() and increase
				    dl2-&gt;dl_lockres.l_ro_holders to 1 on
				    success.

                                                  ......

(A3) call ocfs2_dentry_unlock()
and decrease
dl2-&gt;dl_lockres.l_ro_holders to 0
on success.
             ....

                                    (B3) call ocfs2_dentry_unlock(),
                                    decreasing
				    dl2-&gt;dl_lockres.l_ro_holders, but
				    see it's zero now, panic

Link: http://lkml.kernel.org/r/20190529174636.22364-1-wen.gang.wang@oracle.com
Signed-off-by: Wengang Wang &lt;wen.gang.wang@oracle.com&gt;
Reported-by: Daniel Sobe &lt;daniel.sobe@nxp.com&gt;
Tested-by: Daniel Sobe &lt;daniel.sobe@nxp.com&gt;
Reviewed-by: Changwei Ge &lt;gechangwei@live.cn&gt;
Reviewed-by: Joseph Qi &lt;joseph.qi@linux.alibaba.com&gt;
Cc: Mark Fasheh &lt;mark@fasheh.com&gt;
Cc: Joel Becker &lt;jlbec@evilplan.org&gt;
Cc: Junxiao Bi &lt;junxiao.bi@oracle.com&gt;
Cc: Gang He &lt;ghe@suse.com&gt;
Cc: Jun Piao &lt;piaojun@huawei.com&gt;
Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
ocfs2_dentry_attach_lock() can be executed in parallel threads against the
same dentry.  Make that race safe.  The race is like this:

            thread A                               thread B

(A1) enter ocfs2_dentry_attach_lock,
seeing dentry-&gt;d_fsdata is NULL,
and no alias found by
ocfs2_find_local_alias, so kmalloc
a new ocfs2_dentry_lock structure
to local variable "dl", dl1

               .....

                                    (B1) enter ocfs2_dentry_attach_lock,
                                    seeing dentry-&gt;d_fsdata is NULL,
                                    and no alias found by
                                    ocfs2_find_local_alias so kmalloc
                                    a new ocfs2_dentry_lock structure
                                    to local variable "dl", dl2.

                                                   ......

(A2) set dentry-&gt;d_fsdata with dl1,
call ocfs2_dentry_lock() and increase
dl1-&gt;dl_lockres.l_ro_holders to 1 on
success.
              ......

                                    (B2) set dentry-&gt;d_fsdata with dl2
                                    call ocfs2_dentry_lock() and increase
				    dl2-&gt;dl_lockres.l_ro_holders to 1 on
				    success.

                                                  ......

(A3) call ocfs2_dentry_unlock()
and decrease
dl2-&gt;dl_lockres.l_ro_holders to 0
on success.
             ....

                                    (B3) call ocfs2_dentry_unlock(),
                                    decreasing
				    dl2-&gt;dl_lockres.l_ro_holders, but
				    see it's zero now, panic

Link: http://lkml.kernel.org/r/20190529174636.22364-1-wen.gang.wang@oracle.com
Signed-off-by: Wengang Wang &lt;wen.gang.wang@oracle.com&gt;
Reported-by: Daniel Sobe &lt;daniel.sobe@nxp.com&gt;
Tested-by: Daniel Sobe &lt;daniel.sobe@nxp.com&gt;
Reviewed-by: Changwei Ge &lt;gechangwei@live.cn&gt;
Reviewed-by: Joseph Qi &lt;joseph.qi@linux.alibaba.com&gt;
Cc: Mark Fasheh &lt;mark@fasheh.com&gt;
Cc: Joel Becker &lt;jlbec@evilplan.org&gt;
Cc: Junxiao Bi &lt;junxiao.bi@oracle.com&gt;
Cc: Gang He &lt;ghe@suse.com&gt;
Cc: Jun Piao &lt;piaojun@huawei.com&gt;
Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>io_uring: fix memory leak of UNIX domain socket inode</title>
<updated>2019-06-13T09:00:30+00:00</updated>
<author>
<name>Eric Biggers</name>
<email>ebiggers@google.com</email>
</author>
<published>2019-06-12T21:58:43+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=355e8d26f719c207aa2e00e6f3cfab3acf21769b'/>
<id>355e8d26f719c207aa2e00e6f3cfab3acf21769b</id>
<content type='text'>
Opening and closing an io_uring instance leaks a UNIX domain socket
inode.  This is because the -&gt;file of the io_uring instance's internal
UNIX domain socket is set to point to the io_uring file, but then
sock_release() sees the non-NULL -&gt;file and assumes the inode reference
is held by the file so doesn't call iput().  That's not the case here,
since the reference is still meant to be held by the socket; the actual
inode of the io_uring file is different.

Fix this leak by NULL-ing out -&gt;file before releasing the socket.

Reported-by: syzbot+111cb28d9f583693aefa@syzkaller.appspotmail.com
Fixes: 2b188cc1bb85 ("Add io_uring IO interface")
Cc: &lt;stable@vger.kernel.org&gt; # v5.1+
Signed-off-by: Eric Biggers &lt;ebiggers@google.com&gt;
Signed-off-by: Jens Axboe &lt;axboe@kernel.dk&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Opening and closing an io_uring instance leaks a UNIX domain socket
inode.  This is because the -&gt;file of the io_uring instance's internal
UNIX domain socket is set to point to the io_uring file, but then
sock_release() sees the non-NULL -&gt;file and assumes the inode reference
is held by the file so doesn't call iput().  That's not the case here,
since the reference is still meant to be held by the socket; the actual
inode of the io_uring file is different.

Fix this leak by NULL-ing out -&gt;file before releasing the socket.

Reported-by: syzbot+111cb28d9f583693aefa@syzkaller.appspotmail.com
Fixes: 2b188cc1bb85 ("Add io_uring IO interface")
Cc: &lt;stable@vger.kernel.org&gt; # v5.1+
Signed-off-by: Eric Biggers &lt;ebiggers@google.com&gt;
Signed-off-by: Jens Axboe &lt;axboe@kernel.dk&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'for-5.2-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux</title>
<updated>2019-06-12T01:10:15+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2019-06-12T01:10:15+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=6fa425a2651515f8d262f2c1d972c6632e7c941d'/>
<id>6fa425a2651515f8d262f2c1d972c6632e7c941d</id>
<content type='text'>
Pull btrfs fix from David Sterba:
 "One regression fix to TRIM ioctl.

  The range cannot be used as its meaning can be confusing regarding
  physical and logical addresses. This confusion in code led to
  potential corruptions when the range overlapped data.

  The original patch made it to several stable kernels and was promptly
  reverted, the version for master branch is different due to additional
  changes but the change is effectively the same"

* tag 'for-5.2-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: Always trim all unallocated space in btrfs_trim_free_extents
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull btrfs fix from David Sterba:
 "One regression fix to TRIM ioctl.

  The range cannot be used as its meaning can be confusing regarding
  physical and logical addresses. This confusion in code led to
  potential corruptions when the range overlapped data.

  The original patch made it to several stable kernels and was promptly
  reverted, the version for master branch is different due to additional
  changes but the change is effectively the same"

* tag 'for-5.2-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: Always trim all unallocated space in btrfs_trim_free_extents
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'ceph-for-5.2-rc4' of git://github.com/ceph/ceph-client</title>
<updated>2019-06-08T22:57:35+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2019-06-08T22:57:35+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=2759e05cdb2577a0e8970a9fa80a7f5ff092596f'/>
<id>2759e05cdb2577a0e8970a9fa80a7f5ff092596f</id>
<content type='text'>
Pull ceph fixes from Ilya Dryomov:
 "A change to call iput() asynchronously to avoid a possible deadlock
  when iput_final() needs to wait for in-flight I/O (e.g. readahead) and
  a fixup for a cleanup that went into -rc1"

* tag 'ceph-for-5.2-rc4' of git://github.com/ceph/ceph-client:
  ceph: fix error handling in ceph_get_caps()
  ceph: avoid iput_final() while holding mutex or in dispatch thread
  ceph: single workqueue for inode related works
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull ceph fixes from Ilya Dryomov:
 "A change to call iput() asynchronously to avoid a possible deadlock
  when iput_final() needs to wait for in-flight I/O (e.g. readahead) and
  a fixup for a cleanup that went into -rc1"

* tag 'ceph-for-5.2-rc4' of git://github.com/ceph/ceph-client:
  ceph: fix error handling in ceph_get_caps()
  ceph: avoid iput_final() while holding mutex or in dispatch thread
  ceph: single workqueue for inode related works
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core</title>
<updated>2019-06-08T19:52:42+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2019-06-08T19:52:42+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=9331b6740f86163908de69f4008e434fe0c27691'/>
<id>9331b6740f86163908de69f4008e434fe0c27691</id>
<content type='text'>
Pull yet more SPDX updates from Greg KH:
 "Another round of SPDX header file fixes for 5.2-rc4

  These are all more "GPL-2.0-or-later" or "GPL-2.0-only" tags being
  added, based on the text in the files. We are slowly chipping away at
  the 700+ different ways people tried to write the license text. All of
  these were reviewed on the spdx mailing list by a number of different
  people.

  We now have over 60% of the kernel files covered with SPDX tags:
	$ ./scripts/spdxcheck.py -v 2&gt;&amp;1 | grep Files
	Files checked:            64533
	Files with SPDX:          40392
	Files with errors:            0

  I think the majority of the "easy" fixups are now done, it's now the
  start of the longer-tail of crazy variants to wade through"

* tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (159 commits)
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 450
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 449
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 448
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 446
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 445
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 444
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 443
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 442
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 440
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 438
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 437
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 436
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 435
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 434
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 433
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 432
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 431
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 430
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 429
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull yet more SPDX updates from Greg KH:
 "Another round of SPDX header file fixes for 5.2-rc4

  These are all more "GPL-2.0-or-later" or "GPL-2.0-only" tags being
  added, based on the text in the files. We are slowly chipping away at
  the 700+ different ways people tried to write the license text. All of
  these were reviewed on the spdx mailing list by a number of different
  people.

  We now have over 60% of the kernel files covered with SPDX tags:
	$ ./scripts/spdxcheck.py -v 2&gt;&amp;1 | grep Files
	Files checked:            64533
	Files with SPDX:          40392
	Files with errors:            0

  I think the majority of the "easy" fixups are now done, it's now the
  start of the longer-tail of crazy variants to wade through"

* tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (159 commits)
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 450
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 449
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 448
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 446
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 445
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 444
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 443
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 442
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 440
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 438
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 437
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 436
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 435
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 434
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 433
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 432
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 431
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 430
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 429
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>btrfs: Always trim all unallocated space in btrfs_trim_free_extents</title>
<updated>2019-06-07T12:52:05+00:00</updated>
<author>
<name>Nikolay Borisov</name>
<email>nborisov@suse.com</email>
</author>
<published>2019-06-03T10:06:00+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=8103d10b71610aa65a65d6611cd3ad3f3bd7beeb'/>
<id>8103d10b71610aa65a65d6611cd3ad3f3bd7beeb</id>
<content type='text'>
This patch removes support for range parameters of FITRIM ioctl when
trimming unallocated space on devices. This is necessary since ranges
passed from user space are generally interpreted as logical addresses,
whereas btrfs_trim_free_extents used to interpret them as device
physical extents. This could result in counter-intuitive behavior for
users so it's best to remove that support altogether.

Additionally, the existing range support had a bug where if an offset
was passed to FITRIM which overflows u64 e.g. -1 (parsed as u64
18446744073709551615) then wrong data was fed into btrfs_issue_discard,
which in turn leads to wrap-around when aligning the passed range and
results in wrong regions being discarded which leads to data corruption.

Fixes: c2d1b3aae336 ("btrfs: Honour FITRIM range constraints during free space trim")
Reviewed-by: Qu Wenruo &lt;wqu@suse.com&gt;
Signed-off-by: Nikolay Borisov &lt;nborisov@suse.com&gt;
Signed-off-by: David Sterba &lt;dsterba@suse.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This patch removes support for range parameters of FITRIM ioctl when
trimming unallocated space on devices. This is necessary since ranges
passed from user space are generally interpreted as logical addresses,
whereas btrfs_trim_free_extents used to interpret them as device
physical extents. This could result in counter-intuitive behavior for
users so it's best to remove that support altogether.

Additionally, the existing range support had a bug where if an offset
was passed to FITRIM which overflows u64 e.g. -1 (parsed as u64
18446744073709551615) then wrong data was fed into btrfs_issue_discard,
which in turn leads to wrap-around when aligning the passed range and
results in wrong regions being discarded which leads to data corruption.

Fixes: c2d1b3aae336 ("btrfs: Honour FITRIM range constraints during free space trim")
Reviewed-by: Qu Wenruo &lt;wqu@suse.com&gt;
Signed-off-by: Nikolay Borisov &lt;nborisov@suse.com&gt;
Signed-off-by: David Sterba &lt;dsterba@suse.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'xfs-5.2-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux</title>
<updated>2019-06-06T19:36:54+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2019-06-06T19:36:54+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=01047631df813f6247185547c3778c80af088a20'/>
<id>01047631df813f6247185547c3778c80af088a20</id>
<content type='text'>
Pull xfs fixes from Darrick Wong:
 "Here are a couple more bug fixes for 5.2. Changes since last update:

   - Fix some forgotten strings in a log debugging function

   - Fix incorrect unit conversion in online fsck code"

* tag 'xfs-5.2-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: inode btree scrubber should calculate im_boffset correctly
  xfs: fix broken log reservation debugging
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull xfs fixes from Darrick Wong:
 "Here are a couple more bug fixes for 5.2. Changes since last update:

   - Fix some forgotten strings in a log debugging function

   - Fix incorrect unit conversion in online fsck code"

* tag 'xfs-5.2-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: inode btree scrubber should calculate im_boffset correctly
  xfs: fix broken log reservation debugging
</pre>
</div>
</content>
</entry>
</feed>
