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26 November 2022, 15:45:29 UTC
Revision 9d66586f7723b73c5925c7c7819c260484627851 authored by Eric W. Biederman on 16 June 2007, 17:16:16 UTC, committed by Linus Torvalds on 16 June 2007, 20:16:16 UTC 
shm: fix the filename of hugetlb sysv shared memory
 
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.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Cc: Albert Cahalan <acahalan@gmail.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 2274192
History
Tip revision: 9d66586f7723b73c5925c7c7819c260484627851 authored by Eric W. Biederman on 16 June 2007, 17:16:16 UTC
shm: fix the filename of hugetlb sysv shared memory
Tip revision: 9d66586
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