Andrew Morton wrote:
On Fri, 08 Jun 2007 17:43:34 -0600
[email protected] (Eric W. Biederman) wrote:
Some user space tools need to identify SYSV shared memory when
examining /proc/<pid>/maps. To do so they look for a block device
with major zero, a dentry named SYSV<sysv key>, and having the minor of
the internal sysv shared memory kernel mount.
To help these tools and to make it easier for people just browsing
/proc/<pid>/maps this patch modifies hugetlb sysv shared memory to
use the SYSV<key> dentry naming convention.
User space tools will still have to be aware that hugetlb sysv
shared memory lives on a different internal kernel mount and so
has a different block device minor number from the rest of sysv
shared memory.
I assume this fix is preferred over Badari's? If so, why?
No. You still need my patch to fix the current breakage.
This patch makes hugetlbfs also use same naming convention as regular
shmem for its
name. This is not absolutely needed, its a nice to have. Currently, user
space tools
can't depend on the filename alone, since its not unique (based on kry).
Thanks,
Badari
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