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043697f030
This patch fixes the following memory detected by kmemleak and umount
gfs2 filesystem which removed the last lockspace:
unreferenced object 0xffff9264f4f48f00 (size 128):
comm "mount", pid 425, jiffies 4294690253 (age 48.159s)
hex dump (first 32 bytes):
02 00 52 48 c0 a8 7a fb 00 00 00 00 00 00 00 00 ..RH..z.........
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<0000000067a34940>] kmemdup+0x18/0x40
[<00000000c935f9ab>] init_local+0x4c/0xa0
[<00000000bbd286ef>] dlm_lowcomms_start+0x28/0x160
[<00000000a86625cb>] dlm_new_lockspace+0x7e/0xb80
[<000000008df6cd63>] gdlm_mount+0x1cc/0x5de
[<00000000b67df8c7>] gfs2_lm_mount.constprop.0+0x1a3/0x1d3
[<000000006642ac5e>] gfs2_fill_super+0x717/0xba9
[<00000000d3ab7118>] get_tree_bdev+0x17f/0x280
[<000000001975926e>] gfs2_get_tree+0x21/0x90
[<00000000561ce1c4>] vfs_get_tree+0x28/0xc0
[<000000007fecaf63>] path_mount+0x434/0xc00
[<00000000636b9594>] __x64_sys_mount+0xe3/0x120
[<00000000cc478a33>] do_syscall_64+0x33/0x40
[<00000000ce9ccf01>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
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.