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fs: take the ACL checks to common code

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Replace the ->check_acl method with a ->get_acl method that simply reads an
ACL from disk after having a cache miss.  This means we can replace the ACL
checking boilerplate code with a single implementation in namei.c.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Christoph Hellwig
2011-07-23 17:37:31 +02:00
committed by Al Viro
parent edde854e8b
commit 4e34e719e4
52 changed files with 92 additions and 294 deletions
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24
fs/ocfs2/acl.c
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@@ -290,7 +290,7 @@ static int ocfs2_set_acl(handle_t *handle,
return ret;
}
int ocfs2_check_acl(struct inode *inode, int mask)
struct posix_acl *ocfs2_iop_get_acl(struct inode *inode, int type)
{
struct ocfs2_super *osb;
struct buffer_head *di_bh = NULL;
@@ -299,29 +299,17 @@ int ocfs2_check_acl(struct inode *inode, int mask)
osb = OCFS2_SB(inode->i_sb);
if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
return ret;
return NULL;
ret = ocfs2_read_inode_block(inode, &di_bh);
if (ret < 0) {
mlog_errno(ret);
return ret;
}
if (ret < 0)
return ERR_PTR(ret);
acl = ocfs2_get_acl_nolock(inode, ACL_TYPE_ACCESS, di_bh);
acl = ocfs2_get_acl_nolock(inode, type, di_bh);
brelse(di_bh);
if (IS_ERR(acl)) {
mlog_errno(PTR_ERR(acl));
return PTR_ERR(acl);
}
if (acl) {
ret = posix_acl_permission(inode, acl, mask);
posix_acl_release(acl);
return ret;
}
return -EAGAIN;
return acl;
}
int ocfs2_acl_chmod(struct inode *inode)