diff options
Diffstat (limited to 'fs/fuse')
| -rw-r--r-- | fs/fuse/dev.c | 1 | ||||
| -rw-r--r-- | fs/fuse/dir.c | 8 | ||||
| -rw-r--r-- | fs/fuse/file.c | 34 | ||||
| -rw-r--r-- | fs/fuse/fuse_i.h | 3 |
4 files changed, 21 insertions, 25 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index f11792672977..b681b43c766e 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -11,6 +11,7 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/poll.h> +#include <linux/sched/signal.h> #include <linux/uio.h> #include <linux/miscdevice.h> #include <linux/pagemap.h> diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index 811fd8929a18..00800c07ba1c 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -473,7 +473,7 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, if (err) { fuse_sync_release(ff, flags); } else { - file->private_data = fuse_file_get(ff); + file->private_data = ff; fuse_finish_open(inode, file); } return err; @@ -1777,10 +1777,10 @@ static int fuse_setattr(struct dentry *entry, struct iattr *attr) return ret; } -static int fuse_getattr(struct vfsmount *mnt, struct dentry *entry, - struct kstat *stat) +static int fuse_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int flags) { - struct inode *inode = d_inode(entry); + struct inode *inode = d_inode(path->dentry); struct fuse_conn *fc = get_fuse_conn(inode); if (!fuse_allow_current_process(fc)) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 2401c5dabb2a..ec238fb5a584 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -58,7 +58,7 @@ struct fuse_file *fuse_file_alloc(struct fuse_conn *fc) } INIT_LIST_HEAD(&ff->write_entry); - atomic_set(&ff->count, 0); + atomic_set(&ff->count, 1); RB_CLEAR_NODE(&ff->polled_node); init_waitqueue_head(&ff->poll_wait); @@ -75,7 +75,7 @@ void fuse_file_free(struct fuse_file *ff) kfree(ff); } -struct fuse_file *fuse_file_get(struct fuse_file *ff) +static struct fuse_file *fuse_file_get(struct fuse_file *ff) { atomic_inc(&ff->count); return ff; @@ -100,6 +100,7 @@ static void fuse_file_put(struct fuse_file *ff, bool sync) iput(req->misc.release.inode); fuse_put_request(ff->fc, req); } else if (sync) { + __set_bit(FR_FORCE, &req->flags); __clear_bit(FR_BACKGROUND, &req->flags); fuse_request_send(ff->fc, req); iput(req->misc.release.inode); @@ -146,7 +147,7 @@ int fuse_do_open(struct fuse_conn *fc, u64 nodeid, struct file *file, ff->open_flags &= ~FOPEN_DIRECT_IO; ff->nodeid = nodeid; - file->private_data = fuse_file_get(ff); + file->private_data = ff; return 0; } @@ -245,14 +246,9 @@ static void fuse_prepare_release(struct fuse_file *ff, int flags, int opcode) void fuse_release_common(struct file *file, int opcode) { - struct fuse_file *ff; - struct fuse_req *req; - - ff = file->private_data; - if (unlikely(!ff)) - return; + struct fuse_file *ff = file->private_data; + struct fuse_req *req = ff->reserved_req; - req = ff->reserved_req; fuse_prepare_release(ff, file->f_flags, opcode); if (ff->flock) { @@ -297,13 +293,13 @@ static int fuse_release(struct inode *inode, struct file *file) void fuse_sync_release(struct fuse_file *ff, int flags) { - WARN_ON(atomic_read(&ff->count) > 1); + WARN_ON(atomic_read(&ff->count) != 1); fuse_prepare_release(ff, flags, FUSE_RELEASE); - __set_bit(FR_FORCE, &ff->reserved_req->flags); - __clear_bit(FR_BACKGROUND, &ff->reserved_req->flags); - fuse_request_send(ff->fc, ff->reserved_req); - fuse_put_request(ff->fc, ff->reserved_req); - kfree(ff); + /* + * iput(NULL) is a no-op and since the refcount is 1 and everything's + * synchronous, we are fine with not doing igrab() here" + */ + fuse_file_put(ff, true); } EXPORT_SYMBOL_GPL(fuse_sync_release); @@ -2043,12 +2039,12 @@ static void fuse_vma_close(struct vm_area_struct *vma) * - sync(2) * - try_to_free_pages() with order > PAGE_ALLOC_COSTLY_ORDER */ -static int fuse_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) +static int fuse_page_mkwrite(struct vm_fault *vmf) { struct page *page = vmf->page; - struct inode *inode = file_inode(vma->vm_file); + struct inode *inode = file_inode(vmf->vma->vm_file); - file_update_time(vma->vm_file); + file_update_time(vmf->vma->vm_file); lock_page(page); if (page->mapping != inode->i_mapping) { unlock_page(page); diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index 91307940c8ac..32ac2c9b09c0 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -256,7 +256,7 @@ struct fuse_io_priv { #define FUSE_IO_PRIV_SYNC(f) \ { \ - .refcnt = { ATOMIC_INIT(1) }, \ + .refcnt = KREF_INIT(1), \ .async = 0, \ .file = f, \ } @@ -732,7 +732,6 @@ void fuse_read_fill(struct fuse_req *req, struct file *file, int fuse_open_common(struct inode *inode, struct file *file, bool isdir); struct fuse_file *fuse_file_alloc(struct fuse_conn *fc); -struct fuse_file *fuse_file_get(struct fuse_file *ff); void fuse_file_free(struct fuse_file *ff); void fuse_finish_open(struct inode *inode, struct file *file); |