diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2013-01-31 21:56:13 -0800 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2013-02-13 06:15:10 -0800 |
| commit | 6b24c0d279eacfb499854d09ea7f2b69d1721a29 (patch) | |
| tree | 190918f71eb5867fdf755455153fd1e933e8a75a /fs/gfs2/inode.c | |
| parent | 7c06b5d67225dc99ca81a33db3e055e08da857c3 (diff) | |
| download | op-kernel-dev-6b24c0d279eacfb499854d09ea7f2b69d1721a29.zip op-kernel-dev-6b24c0d279eacfb499854d09ea7f2b69d1721a29.tar.gz | |
gfs2: Use uid_eq and gid_eq where appropriate
Where kuid_t values are compared use uid_eq and where kgid_t values
are compared use gid_eq. This is unfortunately necessary because
of the type safety that keeps someone from accidentally mixing
kuids and kgids with other types.
Cc: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'fs/gfs2/inode.c')
| -rw-r--r-- | fs/gfs2/inode.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index ce07ce4..bb7c754 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -368,10 +368,11 @@ static void munge_mode_uid_gid(const struct gfs2_inode *dip, struct inode *inode) { if (GFS2_SB(&dip->i_inode)->sd_args.ar_suiddir && - (dip->i_inode.i_mode & S_ISUID) && dip->i_inode.i_uid) { + (dip->i_inode.i_mode & S_ISUID) && + !uid_eq(dip->i_inode.i_uid, GLOBAL_ROOT_UID)) { if (S_ISDIR(inode->i_mode)) inode->i_mode |= S_ISUID; - else if (dip->i_inode.i_uid != current_fsuid()) + else if (!uid_eq(dip->i_inode.i_uid, current_fsuid())) inode->i_mode &= ~07111; inode->i_uid = dip->i_inode.i_uid; } else @@ -978,8 +979,8 @@ static int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name, return -EPERM; if ((dip->i_inode.i_mode & S_ISVTX) && - dip->i_inode.i_uid != current_fsuid() && - ip->i_inode.i_uid != current_fsuid() && !capable(CAP_FOWNER)) + !uid_eq(dip->i_inode.i_uid, current_fsuid()) && + !uid_eq(ip->i_inode.i_uid, current_fsuid()) && !capable(CAP_FOWNER)) return -EPERM; if (IS_APPEND(&dip->i_inode)) @@ -1589,16 +1590,17 @@ static int setattr_chown(struct inode *inode, struct iattr *attr) nuid = attr->ia_uid; ngid = attr->ia_gid; - if (!(attr->ia_valid & ATTR_UID) || ouid == nuid) + if (!(attr->ia_valid & ATTR_UID) || uid_eq(ouid, nuid)) ouid = nuid = NO_UID_QUOTA_CHANGE; - if (!(attr->ia_valid & ATTR_GID) || ogid == ngid) + if (!(attr->ia_valid & ATTR_GID) || gid_eq(ogid, ngid)) ogid = ngid = NO_GID_QUOTA_CHANGE; error = gfs2_quota_lock(ip, nuid, ngid); if (error) return error; - if (ouid != NO_UID_QUOTA_CHANGE || ogid != NO_GID_QUOTA_CHANGE) { + if (!uid_eq(ouid, NO_UID_QUOTA_CHANGE) || + !gid_eq(ogid, NO_GID_QUOTA_CHANGE)) { error = gfs2_quota_check(ip, nuid, ngid); if (error) goto out_gunlock_q; @@ -1612,7 +1614,8 @@ static int setattr_chown(struct inode *inode, struct iattr *attr) if (error) goto out_end_trans; - if (ouid != NO_UID_QUOTA_CHANGE || ogid != NO_GID_QUOTA_CHANGE) { + if (!uid_eq(ouid, NO_UID_QUOTA_CHANGE) || + !gid_eq(ogid, NO_GID_QUOTA_CHANGE)) { u64 blocks = gfs2_get_inode_blocks(&ip->i_inode); gfs2_quota_change(ip, -blocks, ouid, ogid); gfs2_quota_change(ip, blocks, nuid, ngid); |
