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-rw-r--r--fs/fuse/dir.c2
-rw-r--r--fs/fuse/file.c8
-rw-r--r--fs/fuse/fuse_i.h8
-rw-r--r--fs/fuse/inode.c1
4 files changed, 15 insertions, 4 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 9e7c538..16ae55d 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -408,7 +408,7 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
goto out_put_forget_req;
err = -ENOMEM;
- ff = fuse_file_alloc();
+ ff = fuse_file_alloc(fc);
if (!ff)
goto out_put_request;
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index baed06e..a28ced6 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -46,7 +46,7 @@ static int fuse_send_open(struct inode *inode, struct file *file, int isdir,
return err;
}
-struct fuse_file *fuse_file_alloc(void)
+struct fuse_file *fuse_file_alloc(struct fuse_conn *fc)
{
struct fuse_file *ff;
ff = kmalloc(sizeof(struct fuse_file), GFP_KERNEL);
@@ -58,6 +58,9 @@ struct fuse_file *fuse_file_alloc(void)
} else {
INIT_LIST_HEAD(&ff->write_entry);
atomic_set(&ff->count, 0);
+ spin_lock(&fc->lock);
+ ff->kh = ++fc->khctr;
+ spin_unlock(&fc->lock);
}
}
return ff;
@@ -108,6 +111,7 @@ void fuse_finish_open(struct inode *inode, struct file *file,
int fuse_open_common(struct inode *inode, struct file *file, int isdir)
{
+ struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_open_out outarg;
struct fuse_file *ff;
int err;
@@ -120,7 +124,7 @@ int fuse_open_common(struct inode *inode, struct file *file, int isdir)
if (err)
return err;
- ff = fuse_file_alloc();
+ ff = fuse_file_alloc(fc);
if (!ff)
return -ENOMEM;
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 4fc5131..86f0133 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -100,6 +100,9 @@ struct fuse_file {
/** Request reserved for flush and release */
struct fuse_req *reserved_req;
+ /** Kernel file handle guaranteed to be unique */
+ u64 kh;
+
/** File handle used by userspace */
u64 fh;
@@ -322,6 +325,9 @@ struct fuse_conn {
/** The list of requests under I/O */
struct list_head io;
+ /** The next unique kernel file handle */
+ u64 khctr;
+
/** Number of requests currently in the background */
unsigned num_background;
@@ -499,7 +505,7 @@ void fuse_read_fill(struct fuse_req *req, struct file *file,
*/
int fuse_open_common(struct inode *inode, struct file *file, int isdir);
-struct fuse_file *fuse_file_alloc(void);
+struct fuse_file *fuse_file_alloc(struct fuse_conn *fc);
void fuse_file_free(struct fuse_file *ff);
void fuse_finish_open(struct inode *inode, struct file *file,
struct fuse_file *ff, struct fuse_open_out *outarg);
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index fa47498..0e15bc2 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -485,6 +485,7 @@ static struct fuse_conn *new_conn(struct super_block *sb)
fc->bdi.unplug_io_fn = default_unplug_io_fn;
/* fuse does it's own writeback accounting */
fc->bdi.capabilities = BDI_CAP_NO_ACCT_WB;
+ fc->khctr = 0;
fc->dev = sb->s_dev;
err = bdi_init(&fc->bdi);
if (err)
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