PPT Slide

for (;;) {

/* look up first N-1 components of pathname */

if (dentry exists && is a symlink)

goto readlink;

err = lookup_open(filename, flags);

if (err != -ELOOP)

return err;

/* if –ELOOP, instantiate a dentry for the symlink*/

readlink:

if (++safeguard > 10)

return -ELOOP; /* loop count exceeded */

->readlink(dentry);

}

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