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| author | Al Viro | 2015-05-08 23:37:07 +0200 |
|---|---|---|
| committer | Al Viro | 2015-05-11 14:12:57 +0200 |
| commit | 3bdba28b72f5d2e7f3df031b04008b9a6fbdc775 (patch) | |
| tree | c538a12b16e7c2cbd53eff4d07c7116babf96c6f /drivers/pnp/base.h | |
| parent | namei: path_init() calling conventions change (diff) | |
| download | kernel-qcow2-linux-3bdba28b72f5d2e7f3df031b04008b9a6fbdc775.tar.gz kernel-qcow2-linux-3bdba28b72f5d2e7f3df031b04008b9a6fbdc775.tar.xz kernel-qcow2-linux-3bdba28b72f5d2e7f3df031b04008b9a6fbdc775.zip | |
namei: lift link_path_walk() call out of trailing_symlink()
Make trailing_symlink() return the pathname to traverse or ERR_PTR(-E...).
A subtle point is that for "magic" symlinks it returns "" now - that
leads to link_path_walk("", nd), which is immediately returning 0 and
we are back to the treatment of the last component, at whereever the
damn thing has left us.
Reduces the stack footprint - link_path_walk() called on more shallow
stack now.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/pnp/base.h')
0 files changed, 0 insertions, 0 deletions