kernel/git/stable/linux.git/fs/dlm, branch linux-5.8.y

fs: dlm: fix configfs memory leak

2020-10-29T09:08:20+00:00

[ 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 Signed-off-by: David Teigland Signed-off-by: Sasha Levin

dlm: Fix kobject memleak

2020-08-19T06:26:56+00:00

[ Upstream commit 0ffddafc3a3970ef7013696e7f36b3d378bc4c16 ] Currently the error return path from kobject_init_and_add() is not followed by a call to kobject_put() - which means we are leaking the kobject. Set do_unreg = 1 before kobject_init_and_add() to ensure that kobject_put() can be called in its error patch. Fixes: 901195ed7f4b ("Kobject: change GFS2 to use kobject_init_and_add") Reported-by: Hulk Robot Signed-off-by: Wang Hai Signed-off-by: David Teigland Signed-off-by: Sasha Levin

Merge tag 'dlm-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

2020-06-05T23:43:16+00:00

Pull dlm updates from David Teigland: "This set includes a couple minor cleanups, and dropping the interruptible from a wait_event that waits for an event from the userspace cluster management" * tag 'dlm-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: dlm: remove BUG() before panic() dlm: Switch to using wait_event() fs:dlm:remove unneeded semicolon in rcom.c dlm: user: Replace zero-length array with flexible-array member dlm: dlm_internal: Replace zero-length array with flexible-array member

net: add a new bind_add method

2020-05-29T20:10:39+00:00

The SCTP protocol allows to bind multiple address to a socket. That feature is currently only exposed as a socket option. Add a bind_add method struct proto that allows to bind additional addresses, and switch the dlm code to use the method instead of going through the socket option from kernel space. Signed-off-by: Christoph Hellwig Acked-by: Marcelo Ricardo Leitner Signed-off-by: David S. Miller

sctp: add sctp_sock_set_nodelay

2020-05-29T20:10:39+00:00

Add a helper to directly set the SCTP_NODELAY sockopt from kernel space without going through a fake uaccess. Signed-off-by: Christoph Hellwig Acked-by: Marcelo Ricardo Leitner Signed-off-by: David S. Miller

tcp: add tcp_sock_set_nodelay

2020-05-28T18:11:45+00:00

Add a helper to directly set the TCP_NODELAY sockopt from kernel space without going through a fake uaccess. Cleanup the callers to avoid pointless wrappers now that this is a simple function call. Signed-off-by: Christoph Hellwig Acked-by: Sagi Grimberg Acked-by: Jason Gunthorpe Signed-off-by: David S. Miller

net: add sock_set_rcvbuf

2020-05-28T18:11:44+00:00

Add a helper to directly set the SO_RCVBUFFORCE sockopt from kernel space without going through a fake uaccess. Signed-off-by: Christoph Hellwig Signed-off-by: David S. Miller

net: add sock_set_keepalive

2020-05-28T18:11:44+00:00

Add a helper to directly set the SO_KEEPALIVE sockopt from kernel space without going through a fake uaccess. Signed-off-by: Christoph Hellwig Signed-off-by: David S. Miller

net: add sock_set_sndtimeo

2020-05-28T18:11:44+00:00

Add a helper to directly set the SO_SNDTIMEO_NEW sockopt from kernel space without going through a fake uaccess. The interface is simplified to only pass the seconds value, as that is the only thing needed at the moment. Signed-off-by: Christoph Hellwig Signed-off-by: David S. Miller

net: add sock_set_reuseaddr

2020-05-28T18:11:44+00:00

Add a helper to directly set the SO_REUSEADDR sockopt from kernel space without going through a fake uaccess. For this the iscsi target now has to formally depend on inet to avoid a mostly theoretical compile failure. For actual operation it already did depend on having ipv4 or ipv6 support. Signed-off-by: Christoph Hellwig Acked-by: Sagi Grimberg Signed-off-by: David S. Miller