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| author | Vitaliy Gusev <vgusev@openvz.org> | 2008-01-17 00:07:08 +0000 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2008-02-03 17:51:36 -0500 |
| commit | ab1f16116527e42dec8aee176d673a41a881b809 (patch) | |
| tree | 0d20fa10151e43f9f104986a2b89ec88ca0135af /include/linux/fs.h | |
| parent | 4321e01e7dce8042758349ffa2929c723b0d4107 (diff) | |
| download | lwn-ab1f16116527e42dec8aee176d673a41a881b809.tar.gz lwn-ab1f16116527e42dec8aee176d673a41a881b809.zip | |
pid-namespaces-vs-locks-interaction
fcntl(F_GETLK,..) can return pid of process for not current pid namespace
(if process is belonged to the several namespaces). It is true also for
pids in /proc/locks. So correct behavior is saving pointer to the struct
pid of the process lock owner.
Signed-off-by: Vitaliy Gusev <vgusev@openvz.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index a516b6716870..b7736ab8bb5e 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -872,6 +872,7 @@ struct file_lock { struct list_head fl_block; /* circular list of blocked processes */ fl_owner_t fl_owner; unsigned int fl_pid; + struct pid *fl_nspid; wait_queue_head_t fl_wait; struct file *fl_file; unsigned char fl_flags; |