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[PATCH] nbd: show nbd client pid in sysfs

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Allow nbd to expose the nbd-client daemon's PID in /sys/block/nbd<x>/pid.

This is helpful for tracking connection status of a device and for
determining which nbd devices are currently in use.

Signed-off-by: Paul Clements <paul.clements@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Paul Clements 2006-12-06 20:40:53 -08:00 • committed by Linus Torvalds
commit 6b39bb6548
2 changed files with 17 additions and 0 deletions
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include/linux/nbd.h
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@ -64,6 +64,7 @@ struct nbd_device {
struct gendisk *disk;
int blksize;
u64 bytesize;
pid_t pid; /* pid of nbd-client, if attached */
};
#endif