ceph, cifs, nfs, fuse: boolean and / or confusion

From: roel
Date: Mon Dec 12 2011 - 18:06:43 EST


The test not SEEK_CUR or not SEEK_SET always evaluates to true

Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
---
fs/ceph/file.c | 2 +-
fs/cifs/cifsfs.c | 2 +-
fs/fuse/file.c | 2 +-
fs/nfs/file.c | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index ce549d3..4d61a66 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -797,7 +797,7 @@ static loff_t ceph_llseek(struct file *file, loff_t offset, int origin)

mutex_lock(&inode->i_mutex);
__ceph_do_pending_vmtruncate(inode);
- if (origin != SEEK_CUR || origin != SEEK_SET) {
+ if (origin != SEEK_CUR && origin != SEEK_SET) {
ret = ceph_do_getattr(inode, CEPH_STAT_CAP_SIZE);
if (ret < 0) {
offset = ret;
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 8f1fe32..f8351c2 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -703,7 +703,7 @@ static loff_t cifs_llseek(struct file *file, loff_t offset, int origin)
* origin == SEEK_END || SEEK_DATA || SEEK_HOLE => we must revalidate
* the cached file length
*/
- if (origin != SEEK_SET || origin != SEEK_CUR) {
+ if (origin != SEEK_SET && origin != SEEK_CUR) {
int rc;
struct inode *inode = file->f_path.dentry->d_inode;

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 594f07a..19029e9 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1556,7 +1556,7 @@ static loff_t fuse_file_llseek(struct file *file, loff_t offset, int origin)
struct inode *inode = file->f_path.dentry->d_inode;

mutex_lock(&inode->i_mutex);
- if (origin != SEEK_CUR || origin != SEEK_SET) {
+ if (origin != SEEK_CUR && origin != SEEK_SET) {
retval = fuse_update_attributes(inode, NULL, file, NULL);
if (retval)
goto exit;
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index eca56d4..606ef0f 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -147,7 +147,7 @@ static loff_t nfs_file_llseek(struct file *filp, loff_t offset, int origin)
* origin == SEEK_END || SEEK_DATA || SEEK_HOLE => we must revalidate
* the cached file length
*/
- if (origin != SEEK_SET || origin != SEEK_CUR) {
+ if (origin != SEEK_SET && origin != SEEK_CUR) {
struct inode *inode = filp->f_mapping->host;

int retval = nfs_revalidate_file_size(inode, filp);
--
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