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| Filename | Latest commit message | Latest commit date |
|---|---|---|
0ce7ba162b
[ Upstream commit 3d2825c8c6105b0f36f3ff72760799fa2e71420e ]
This patch fixes the following memory detected by kmemleak and umount
gfs2 filesystem which removed the last lockspace:
unreferenced object 0xffff9264f482f600 (size 192):
comm "dlm_controld", pid 325, jiffies 4294690276 (age 48.136s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 6e 6f 64 65 73 00 00 00 ........nodes...
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000060481d7>] make_space+0x41/0x130
[<000000008d905d46>] configfs_mkdir+0x1a2/0x5f0
[<00000000729502cf>] vfs_mkdir+0x155/0x210
[<000000000369bcf1>] do_mkdirat+0x6d/0x110
[<00000000cc478a33>] do_syscall_64+0x33/0x40
[<00000000ce9ccf01>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
The patch just remembers the "nodes" entry pointer in space as I think
it's created as subdirectory when parent "spaces" is created. In
function drop_space() we will lost the pointer reference to nds because
configfs_remove_default_groups(). However as this subdirectory is always
available when "spaces" exists it will just be freed when "spaces" will be
freed.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.