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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2014-03-14 12:02:47 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-04-01 23:19:12 -0400 |
| commit | 83f936c75e3689a63253d89c47a4d239c56d7410 (patch) | |
| tree | 430d89096a9b56ffb8e80bd4febde39e1d05ad4c /fs/namespace.c | |
| parent | fold __get_file_write_access() into its only caller (diff) | |
| download | linux-dev-83f936c75e3689a63253d89c47a4d239c56d7410.tar.xz linux-dev-83f936c75e3689a63253d89c47a4d239c56d7410.zip | |
mark struct file that had write access grabbed by open()
new flag in ->f_mode - FMODE_WRITER. Set by do_dentry_open() in case
when it has grabbed write access, checked by __fput() to decide whether
it wants to drop the sucker. Allows to stop bothering with mnt_clone_write()
in alloc_file(), along with fewer special_file() checks.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namespace.c')
| -rw-r--r-- | fs/namespace.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index a66aff5bd3fe..20e8696c31a7 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -414,9 +414,7 @@ EXPORT_SYMBOL_GPL(mnt_clone_write); */ int __mnt_want_write_file(struct file *file) { - struct inode *inode = file_inode(file); - - if (!(file->f_mode & FMODE_WRITE) || special_file(inode->i_mode)) + if (!(file->f_mode & FMODE_WRITER)) return __mnt_want_write(file->f_path.mnt); else return mnt_clone_write(file->f_path.mnt); |