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authorAl Viro <viro@zeniv.linux.org.uk>2009-03-29 19:00:13 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2009-03-31 23:00:26 -0400
commit3e93cd671813e204c258f1e6c797959920cf7772 (patch)
treea1e0b2d2da7d296cc1c53be9cd6efa5b94b01b5c /kernel/exit.c
parentf8ef3ed2bebd2c4cb9ece92efa185d7aead8831a (diff)
Take fs_struct handling to new file (fs/fs_struct.c)
Pure code move; two new helper functions for nfsd and daemonize (unshare_fs_struct() and daemonize_fs_struct() resp.; for now - the same code as used to be in callers). unshare_fs_struct() exported (for nfsd, as copy_fs_struct()/exit_fs() used to be), copy_fs_struct() and exit_fs() don't need exports anymore. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'kernel/exit.c')
-rw-r--r--kernel/exit.c31
1 files changed, 1 insertions, 30 deletions
diff --git a/kernel/exit.c b/kernel/exit.c
index 167e1e3ad7c..ad8375758a7 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -429,7 +429,6 @@ EXPORT_SYMBOL(disallow_signal);
void daemonize(const char *name, ...)
{
va_list args;
- struct fs_struct *fs;
sigset_t blocked;
va_start(args, name);
@@ -462,11 +461,7 @@ void daemonize(const char *name, ...)
/* Become as one with the init task */
- exit_fs(current); /* current->fs->count--; */
- fs = init_task.fs;
- current->fs = fs;
- atomic_inc(&fs->count);
-
+ daemonize_fs_struct();
exit_files(current);
current->files = init_task.files;
atomic_inc(&current->files->count);
@@ -565,30 +560,6 @@ void exit_files(struct task_struct *tsk)
}
}
-void put_fs_struct(struct fs_struct *fs)
-{
- /* No need to hold fs->lock if we are killing it */
- if (atomic_dec_and_test(&fs->count)) {
- path_put(&fs->root);
- path_put(&fs->pwd);
- kmem_cache_free(fs_cachep, fs);
- }
-}
-
-void exit_fs(struct task_struct *tsk)
-{
- struct fs_struct * fs = tsk->fs;
-
- if (fs) {
- task_lock(tsk);
- tsk->fs = NULL;
- task_unlock(tsk);
- put_fs_struct(fs);
- }
-}
-
-EXPORT_SYMBOL_GPL(exit_fs);
-
#ifdef CONFIG_MM_OWNER
/*
* Task p is exiting and it owned mm, lets find a new owner for it