On Sat, 02 Sep 2006 00:14:23 +0200
Andreas Gruenbacher <[email protected]> wrote:
> +static void
> +shmem_set_acl(struct inode *inode, int type, struct posix_acl *acl)
> +{
> + spin_lock(&inode->i_lock);
> + switch(type) {
> + case ACL_TYPE_ACCESS:
> + if (SHMEM_I(inode)->i_acl)
> + posix_acl_release(SHMEM_I(inode)->i_acl);
> + SHMEM_I(inode)->i_acl = posix_acl_dup(acl);
> + break;
i_lock is "general-purpose, innermost per-inode lock". Calling kfree()
under it makes it no longer "innermost". But kfree() is surely atomic wrt
everything which filesystems and the VFS will want to do, so that's OK.
However it does point at an inefficiency. There's no need at all to be
holding onto that lock while running kfree().
--
VGER BF report: H 0
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