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4ac9137858
This is the central patch of a cleanup series. In most cases there is no good
reason why someone would want to use a dentry for itself. This series reflects
that fact and embeds a struct path into nameidata.
Together with the other patches of this series
- it enforced the correct order of getting/releasing the reference count on
<dentry,vfsmount> pairs
- it prepares the VFS for stacking support since it is essential to have a
struct path in every place where the stack can be traversed
- it reduces the overall code size:
without patch series:
text data bss dec hex filename
5321639 858418 715768 6895825 6938d1 vmlinux
with patch series:
text data bss dec hex filename
5320026 858418 715768
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| .. | ||
| conv.h | ||
| entry64.S | ||
| fs.c | ||
| ioctl.c | ||
| ipc.c | ||
| Makefile | ||
| misc.c | ||
| signal.c | ||
| signal.h | ||
| socket.c | ||
| socksys.c | ||
| socksys.h | ||
| systbl.S | ||
| timod.c | ||