picnoir
/
Systemd
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

fs-util: add shortcut for chase_symlinks() when it is called like open(O_PATH) 

Let's optimize things, and let the kernel chase the paths if none of the
features chase_symlinks() offers are actually used.
This commit is contained in:
Lennart Poettering 2018-03-26 16:34:54 +02:00
parent 36952d1919
commit 244d2f07b4
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/basic/fs-util.c
View File

@ -634,6 +634,16 @@ int chase_symlinks(const char *path, const char *original_root, unsigned flags,
if (noop_root(original_root))
original_root = NULL;
if (!original_root && !ret && (flags & (CHASE_NONEXISTENT|CHASE_NO_AUTOFS|CHASE_SAFE|CHASE_OPEN)) == CHASE_OPEN) {
/* Shortcut the CHASE_OPEN case if the caller isn't interested in the actual path and has no root set
* and doesn't care about any of the other special features we provide either. */
r = open(path, O_PATH|O_CLOEXEC);
if (r < 0)
return -errno;
return r;
}
if (original_root) {
r = path_make_absolute_cwd(original_root, &root);
if (r < 0)