mirror of
https://github.com/joel16/android_kernel_sony_msm8994.git
synced 2024-11-23 12:10:29 +00:00
Switch may_open() and break_lease() to passing O_...
... instead of mixing FMODE_ and O_ Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
parent
d208bbdda9
commit
8737c9305b
@ -140,7 +140,7 @@ void mconsole_proc(struct mc_request *req)
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goto out;
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}
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err = may_open(&nd.path, MAY_READ, FMODE_READ);
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err = may_open(&nd.path, MAY_READ, O_RDONLY);
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if (result) {
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mconsole_reply(req, "Failed to open file", 1, 0);
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path_put(&nd.path);
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@ -2289,9 +2289,9 @@ cifs_oplock_break(struct slow_work *work)
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if (inode && S_ISREG(inode->i_mode)) {
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#ifdef CONFIG_CIFS_EXPERIMENTAL
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if (cinode->clientCanCacheAll == 0)
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break_lease(inode, FMODE_READ);
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break_lease(inode, O_RDONLY);
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else if (cinode->clientCanCacheRead == 0)
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break_lease(inode, FMODE_WRITE);
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break_lease(inode, O_WRONLY);
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#endif
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rc = filemap_fdatawrite(inode->i_mapping);
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if (cinode->clientCanCacheRead == 0) {
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@ -1182,8 +1182,9 @@ int __break_lease(struct inode *inode, unsigned int mode)
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struct file_lock *fl;
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unsigned long break_time;
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int i_have_this_lease = 0;
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int want_write = (mode & O_ACCMODE) != O_RDONLY;
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new_fl = lease_alloc(NULL, mode & FMODE_WRITE ? F_WRLCK : F_RDLCK);
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new_fl = lease_alloc(NULL, want_write ? F_WRLCK : F_RDLCK);
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lock_kernel();
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@ -1197,7 +1198,7 @@ int __break_lease(struct inode *inode, unsigned int mode)
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if (fl->fl_owner == current->files)
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i_have_this_lease = 1;
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if (mode & FMODE_WRITE) {
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if (want_write) {
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/* If we want write access, we have to revoke any lease. */
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future = F_UNLCK | F_INPROGRESS;
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} else if (flock->fl_type & F_INPROGRESS) {
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10
fs/namei.c
10
fs/namei.c
@ -1503,7 +1503,7 @@ int may_open(struct path *path, int acc_mode, int flag)
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* An append-only file must be opened in append mode for writing.
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*/
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if (IS_APPEND(inode)) {
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if ((flag & FMODE_WRITE) && !(flag & O_APPEND))
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if ((flag & O_ACCMODE) != O_RDONLY && !(flag & O_APPEND))
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return -EPERM;
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if (flag & O_TRUNC)
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return -EPERM;
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@ -1547,7 +1547,7 @@ static int handle_truncate(struct path *path)
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* what get passed to sys_open().
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*/
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static int __open_namei_create(struct nameidata *nd, struct path *path,
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int flag, int mode)
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int open_flag, int mode)
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{
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int error;
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struct dentry *dir = nd->path.dentry;
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@ -1565,7 +1565,7 @@ out_unlock:
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if (error)
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return error;
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/* Don't check for write permission, don't truncate */
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return may_open(&nd->path, 0, flag & ~O_TRUNC);
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return may_open(&nd->path, 0, open_flag & ~O_TRUNC);
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}
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/*
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@ -1736,7 +1736,7 @@ do_last:
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error = mnt_want_write(nd.path.mnt);
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if (error)
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goto exit_mutex_unlock;
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error = __open_namei_create(&nd, &path, flag, mode);
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error = __open_namei_create(&nd, &path, open_flag, mode);
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if (error) {
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mnt_drop_write(nd.path.mnt);
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goto exit;
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@ -1798,7 +1798,7 @@ ok:
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if (error)
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goto exit;
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}
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error = may_open(&nd.path, acc_mode, flag);
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error = may_open(&nd.path, acc_mode, open_flag);
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if (error) {
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if (will_truncate)
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mnt_drop_write(nd.path.mnt);
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@ -36,10 +36,9 @@ static struct file *do_open(char *name, int flags)
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return ERR_PTR(error);
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if (flags == O_RDWR)
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error = may_open(&nd.path, MAY_READ|MAY_WRITE,
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FMODE_READ|FMODE_WRITE);
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error = may_open(&nd.path, MAY_READ|MAY_WRITE, flags);
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else
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error = may_open(&nd.path, MAY_WRITE, FMODE_WRITE);
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error = may_open(&nd.path, MAY_WRITE, flags);
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if (!error)
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return dentry_open(nd.path.dentry, nd.path.mnt, flags,
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@ -361,7 +361,7 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
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* If we are changing the size of the file, then
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* we need to break all leases.
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*/
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host_err = break_lease(inode, FMODE_WRITE | O_NONBLOCK);
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host_err = break_lease(inode, O_WRONLY | O_NONBLOCK);
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if (host_err == -EWOULDBLOCK)
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host_err = -ETIMEDOUT;
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if (host_err) /* ENOMEM or EWOULDBLOCK */
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@ -734,7 +734,7 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
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* Check to see if there are any leases on this file.
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* This may block while leases are broken.
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*/
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host_err = break_lease(inode, O_NONBLOCK | ((access & NFSD_MAY_WRITE) ? FMODE_WRITE : 0));
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host_err = break_lease(inode, O_NONBLOCK | ((access & NFSD_MAY_WRITE) ? O_WRONLY : 0));
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if (host_err == -EWOULDBLOCK)
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host_err = -ETIMEDOUT;
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if (host_err) /* NOMEM or WOULDBLOCK */
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@ -271,7 +271,7 @@ static long do_sys_truncate(const char __user *pathname, loff_t length)
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* Make sure that there are no leases. get_write_access() protects
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* against the truncate racing with a lease-granting setlease().
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*/
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error = break_lease(inode, FMODE_WRITE);
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error = break_lease(inode, O_WRONLY);
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if (error)
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goto put_write_and_out;
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@ -1331,7 +1331,7 @@ static ssize_t binary_sysctl(const int *name, int nlen,
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ssize_t result;
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char *pathname;
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int flags;
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int acc_mode, fmode;
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int acc_mode;
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pathname = sysctl_getname(name, nlen, &table);
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result = PTR_ERR(pathname);
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@ -1342,15 +1342,12 @@ static ssize_t binary_sysctl(const int *name, int nlen,
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if (oldval && oldlen && newval && newlen) {
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flags = O_RDWR;
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acc_mode = MAY_READ | MAY_WRITE;
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fmode = FMODE_READ | FMODE_WRITE;
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} else if (newval && newlen) {
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flags = O_WRONLY;
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acc_mode = MAY_WRITE;
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fmode = FMODE_WRITE;
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} else if (oldval && oldlen) {
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flags = O_RDONLY;
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acc_mode = MAY_READ;
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fmode = FMODE_READ;
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} else {
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result = 0;
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goto out_putname;
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@ -1361,7 +1358,7 @@ static ssize_t binary_sysctl(const int *name, int nlen,
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if (result)
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goto out_putname;
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result = may_open(&nd.path, acc_mode, fmode);
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result = may_open(&nd.path, acc_mode, flags);
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if (result)
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goto out_putpath;
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