Quoting Alex Tomas <[EMAIL PROTECTED]>: > >>>>> Jan Blunck (JB) writes: > > JB> i_sem does NOT protect the dcache. Also not in real_lookup(). The lock > must be > JB> acquired for ->lookup() and because we might sleep on i_sem, we have to > get it > JB> early and check for repopulation of the dcache. > > dentry is part of dcache, right? i_sem protects dentry from being > returned with incomplete data inside, right? >
Nope, d_alloc() is setting d_flags to DCACHE_UNHASHED. Therefore it is not found by __d_lookup() until it is rehashed which is implicit done by ->lookup(). Jan - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
