AcoSail/kernel_optimize_test
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simplify link_path_walk() tail

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Now that link_path_walk() is called without LOOKUP_PARENT
only from do_follow_link(), we can simplify the checks in
last component handling.  First of all, checking if we'd
arrived to a directory is not needed - the caller will check
it anyway.  And LOOKUP_FOLLOW is guaranteed to be there,
since we only get to that place with nd->depth > 0.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2011-03-14 21:28:04 -04:00
parent bd92d7fed8
commit ce0525449d
1 changed files with 1 additions and 7 deletions
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8
fs/namei.c
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@ -1467,8 +1467,7 @@ static int link_path_walk(const char *name, struct nameidata *nd)
nd->last_type = type;
return 0;
}
err = walk_component(nd, &next, &this, type,
lookup_flags & LOOKUP_FOLLOW);
err = walk_component(nd, &next, &this, type, LOOKUP_FOLLOW);
if (err < 0)
return err;
if (err) {
@ -1476,11 +1475,6 @@ static int link_path_walk(const char *name, struct nameidata *nd)
if (err)
return err;
}
if (lookup_flags & LOOKUP_DIRECTORY) {
err = -ENOTDIR;
if (!nd->inode->i_op->lookup)
break;
}
return 0;
}
terminate_walk(nd);