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| author | Al Viro <viro@zeniv.linux.org.uk> | 2009-03-30 01:00:13 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-04-01 05:00:26 +0200 |
| commit | 3e93cd671813e204c258f1e6c797959920cf7772 (patch) | |
| tree | a1e0b2d2da7d296cc1c53be9cd6efa5b94b01b5c /kernel/exit.c | |
| parent | Get rid of bumping fs_struct refcount in pivot_root(2) (diff) | |
| download | linux-3e93cd671813e204c258f1e6c797959920cf7772.tar.xz linux-3e93cd671813e204c258f1e6c797959920cf7772.zip | |
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.c | 31 |
1 files changed, 1 insertions, 30 deletions
diff --git a/kernel/exit.c b/kernel/exit.c index 167e1e3ad7c6..ad8375758a79 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(¤t->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 |