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-rw-r--r--fs/fuse/dev.c157
-rw-r--r--fs/fuse/dir.c56
-rw-r--r--fs/fuse/file.c49
-rw-r--r--fs/fuse/fuse_i.h49
-rw-r--r--fs/fuse/inode.c14
5 files changed, 106 insertions, 219 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 104a62dadb9..fec4779e2b5 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -64,18 +64,6 @@ static void restore_sigs(sigset_t *oldset)
sigprocmask(SIG_SETMASK, oldset, NULL);
}
-/*
- * Reset request, so that it can be reused
- *
- * The caller must be _very_ careful to make sure, that it is holding
- * the only reference to req
- */
-void fuse_reset_request(struct fuse_req *req)
-{
- BUG_ON(atomic_read(&req->count) != 1);
- fuse_request_init(req);
-}
-
static void __fuse_get_request(struct fuse_req *req)
{
atomic_inc(&req->count);
@@ -103,6 +91,10 @@ struct fuse_req *fuse_get_req(struct fuse_conn *fc)
if (intr)
goto out;
+ err = -ENOTCONN;
+ if (!fc->connected)
+ goto out;
+
req = fuse_request_alloc();
err = -ENOMEM;
if (!req)
@@ -129,113 +121,38 @@ void fuse_put_request(struct fuse_conn *fc, struct fuse_req *req)
}
/*
- * Called with sbput_sem held for read (request_end) or write
- * (fuse_put_super). By the time fuse_put_super() is finished, all
- * inodes belonging to background requests must be released, so the
- * iputs have to be done within the locked region.
- */
-void fuse_release_background(struct fuse_conn *fc, struct fuse_req *req)
-{
- iput(req->inode);
- iput(req->inode2);
- spin_lock(&fc->lock);
- list_del(&req->bg_entry);
- if (fc->num_background == FUSE_MAX_BACKGROUND) {
- fc->blocked = 0;
- wake_up_all(&fc->blocked_waitq);
- }
- fc->num_background--;
- spin_unlock(&fc->lock);
-}
-
-/*
* This function is called when a request is finished. Either a reply
* has arrived or it was interrupted (and not yet sent) or some error
* occurred during communication with userspace, or the device file
- * was closed. In case of a background request the reference to the
- * stored objects are released. The requester thread is woken up (if
- * still waiting), the 'end' callback is called if given, else the
- * reference to the request is released
- *
- * Releasing extra reference for foreground requests must be done
- * within the same locked region as setting state to finished. This
- * is because fuse_reset_request() may be called after request is
- * finished and it must be the sole possessor. If request is
- * interrupted and put in the background, it will return with an error
- * and hence never be reset and reused.
+ * was closed. The requester thread is woken up (if still waiting),
+ * the 'end' callback is called if given, else the reference to the
+ * request is released
*
* Called with fc->lock, unlocks it
*/
static void request_end(struct fuse_conn *fc, struct fuse_req *req)
{
+ void (*end) (struct fuse_conn *, struct fuse_req *) = req->end;
+ req->end = NULL;
list_del(&req->list);
req->state = FUSE_REQ_FINISHED;
- if (!req->background) {
- spin_unlock(&fc->lock);
- wake_up(&req->waitq);
- fuse_put_request(fc, req);
- } else {
- void (*end) (struct fuse_conn *, struct fuse_req *) = req->end;
- req->end = NULL;
- spin_unlock(&fc->lock);
- down_read(&fc->sbput_sem);
- if (fc->mounted)
- fuse_release_background(fc, req);
- up_read(&fc->sbput_sem);
-
- /* fput must go outside sbput_sem, otherwise it can deadlock */
- if (req->file)
- fput(req->file);
-
- if (end)
- end(fc, req);
- else
- fuse_put_request(fc, req);
+ if (req->background) {
+ if (fc->num_background == FUSE_MAX_BACKGROUND) {
+ fc->blocked = 0;
+ wake_up_all(&fc->blocked_waitq);
+ }
+ fc->num_background--;
}
-}
-
-/*
- * Unfortunately request interruption not just solves the deadlock
- * problem, it causes problems too. These stem from the fact, that an
- * interrupted request is continued to be processed in userspace,
- * while all the locks and object references (inode and file) held
- * during the operation are released.
- *
- * To release the locks is exactly why there's a need to interrupt the
- * request, so there's not a lot that can be done about this, except
- * introduce additional locking in userspace.
- *
- * More important is to keep inode and file references until userspace
- * has replied, otherwise FORGET and RELEASE could be sent while the
- * inode/file is still used by the filesystem.
- *
- * For this reason the concept of "background" request is introduced.
- * An interrupted request is backgrounded if it has been already sent
- * to userspace. Backgrounding involves getting an extra reference to
- * inode(s) or file used in the request, and adding the request to
- * fc->background list. When a reply is received for a background
- * request, the object references are released, and the request is
- * removed from the list. If the filesystem is unmounted while there
- * are still background requests, the list is walked and references
- * are released as if a reply was received.
- *
- * There's one more use for a background request. The RELEASE message is
- * always sent as background, since it doesn't return an error or
- * data.
- */
-static void background_request(struct fuse_conn *fc, struct fuse_req *req)
-{
- req->background = 1;
- list_add(&req->bg_entry, &fc->background);
- fc->num_background++;
- if (fc->num_background == FUSE_MAX_BACKGROUND)
- fc->blocked = 1;
- if (req->inode)
- req->inode = igrab(req->inode);
- if (req->inode2)
- req->inode2 = igrab(req->inode2);
+ spin_unlock(&fc->lock);
+ dput(req->dentry);
+ mntput(req->vfsmount);
if (req->file)
- get_file(req->file);
+ fput(req->file);
+ wake_up(&req->waitq);
+ if (end)
+ end(fc, req);
+ else
+ fuse_put_request(fc, req);
}
/* Called with fc->lock held. Releases, and then reacquires it. */
@@ -244,9 +161,14 @@ static void request_wait_answer(struct fuse_conn *fc, struct fuse_req *req)
sigset_t oldset;
spin_unlock(&fc->lock);
- block_sigs(&oldset);
- wait_event_interruptible(req->waitq, req->state == FUSE_REQ_FINISHED);
- restore_sigs(&oldset);
+ if (req->force)
+ wait_event(req->waitq, req->state == FUSE_REQ_FINISHED);
+ else {
+ block_sigs(&oldset);
+ wait_event_interruptible(req->waitq,
+ req->state == FUSE_REQ_FINISHED);
+ restore_sigs(&oldset);
+ }
spin_lock(&fc->lock);
if (req->state == FUSE_REQ_FINISHED && !req->interrupted)
return;
@@ -268,8 +190,11 @@ static void request_wait_answer(struct fuse_conn *fc, struct fuse_req *req)
if (req->state == FUSE_REQ_PENDING) {
list_del(&req->list);
__fuse_put_request(req);
- } else if (req->state == FUSE_REQ_SENT)
- background_request(fc, req);
+ } else if (req->state == FUSE_REQ_SENT) {
+ spin_unlock(&fc->lock);
+ wait_event(req->waitq, req->state == FUSE_REQ_FINISHED);
+ spin_lock(&fc->lock);
+ }
}
static unsigned len_args(unsigned numargs, struct fuse_arg *args)
@@ -327,8 +252,12 @@ void request_send(struct fuse_conn *fc, struct fuse_req *req)
static void request_send_nowait(struct fuse_conn *fc, struct fuse_req *req)
{
spin_lock(&fc->lock);
- background_request(fc, req);
if (fc->connected) {
+ req->background = 1;
+ fc->num_background++;
+ if (fc->num_background == FUSE_MAX_BACKGROUND)
+ fc->blocked = 1;
+
queue_request(fc, req);
spin_unlock(&fc->lock);
} else {
@@ -883,10 +812,12 @@ void fuse_abort_conn(struct fuse_conn *fc)
spin_lock(&fc->lock);
if (fc->connected) {
fc->connected = 0;
+ fc->blocked = 0;
end_io_requests(fc);
end_requests(fc, &fc->pending);
end_requests(fc, &fc->processing);
wake_up_all(&fc->waitq);
+ wake_up_all(&fc->blocked_waitq);
kill_fasync(&fc->fasync, SIGIO, POLL_IN);
}
spin_unlock(&fc->lock);
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 8d7546e832e..72a74cde6de 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1,6 +1,6 @@
/*
FUSE: Filesystem in Userspace
- Copyright (C) 2001-2005 Miklos Szeredi <miklos@szeredi.hu>
+ Copyright (C) 2001-2006 Miklos Szeredi <miklos@szeredi.hu>
This program can be distributed under the terms of the GNU GPL.
See the file COPYING.
@@ -79,7 +79,6 @@ static void fuse_lookup_init(struct fuse_req *req, struct inode *dir,
{
req->in.h.opcode = FUSE_LOOKUP;
req->in.h.nodeid = get_node_id(dir);
- req->inode = dir;
req->in.numargs = 1;
req->in.args[0].size = entry->d_name.len + 1;
req->in.args[0].value = entry->d_name.name;
@@ -225,6 +224,20 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
}
/*
+ * Synchronous release for the case when something goes wrong in CREATE_OPEN
+ */
+static void fuse_sync_release(struct fuse_conn *fc, struct fuse_file *ff,
+ u64 nodeid, int flags)
+{
+ struct fuse_req *req;
+
+ req = fuse_release_fill(ff, nodeid, flags, FUSE_RELEASE);
+ req->force = 1;
+ request_send(fc, req);
+ fuse_put_request(fc, req);
+}
+
+/*
* Atomic create+open operation
*
* If the filesystem doesn't support this, then fall back to separate
@@ -237,6 +250,7 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
struct inode *inode;
struct fuse_conn *fc = get_fuse_conn(dir);
struct fuse_req *req;
+ struct fuse_req *forget_req;
struct fuse_open_in inarg;
struct fuse_open_out outopen;
struct fuse_entry_out outentry;
@@ -247,9 +261,14 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
if (fc->no_create)
return -ENOSYS;
+ forget_req = fuse_get_req(fc);
+ if (IS_ERR(forget_req))
+ return PTR_ERR(forget_req);
+
req = fuse_get_req(fc);
+ err = PTR_ERR(req);
if (IS_ERR(req))
- return PTR_ERR(req);
+ goto out_put_forget_req;
err = -ENOMEM;
ff = fuse_file_alloc();
@@ -262,7 +281,6 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
inarg.mode = mode;
req->in.h.opcode = FUSE_CREATE;
req->in.h.nodeid = get_node_id(dir);
- req->inode = dir;
req->in.numargs = 2;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
@@ -285,25 +303,23 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
if (!S_ISREG(outentry.attr.mode) || invalid_nodeid(outentry.nodeid))
goto out_free_ff;
+ fuse_put_request(fc, req);
inode = fuse_iget(dir->i_sb, outentry.nodeid, outentry.generation,
&outentry.attr);
- err = -ENOMEM;
if (!inode) {
flags &= ~(O_CREAT | O_EXCL | O_TRUNC);
ff->fh = outopen.fh;
- /* Special release, with inode = NULL, this will
- trigger a 'forget' request when the release is
- complete */
- fuse_send_release(fc, ff, outentry.nodeid, NULL, flags, 0);
- goto out_put_request;
+ fuse_sync_release(fc, ff, outentry.nodeid, flags);
+ fuse_send_forget(fc, forget_req, outentry.nodeid, 1);
+ return -ENOMEM;
}
- fuse_put_request(fc, req);
+ fuse_put_request(fc, forget_req);
d_instantiate(entry, inode);
fuse_change_timeout(entry, &outentry);
file = lookup_instantiate_filp(nd, entry, generic_file_open);
if (IS_ERR(file)) {
ff->fh = outopen.fh;
- fuse_send_release(fc, ff, outentry.nodeid, inode, flags, 0);
+ fuse_sync_release(fc, ff, outentry.nodeid, flags);
return PTR_ERR(file);
}
fuse_finish_open(inode, file, ff, &outopen);
@@ -313,6 +329,8 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
fuse_file_free(ff);
out_put_request:
fuse_put_request(fc, req);
+ out_put_forget_req:
+ fuse_put_request(fc, forget_req);
return err;
}
@@ -328,7 +346,6 @@ static int create_new_entry(struct fuse_conn *fc, struct fuse_req *req,
int err;
req->in.h.nodeid = get_node_id(dir);
- req->inode = dir;
req->out.numargs = 1;
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
@@ -448,7 +465,6 @@ static int fuse_unlink(struct inode *dir, struct dentry *entry)
req->in.h.opcode = FUSE_UNLINK;
req->in.h.nodeid = get_node_id(dir);
- req->inode = dir;
req->in.numargs = 1;
req->in.args[0].size = entry->d_name.len + 1;
req->in.args[0].value = entry->d_name.name;
@@ -480,7 +496,6 @@ static int fuse_rmdir(struct inode *dir, struct dentry *entry)
req->in.h.opcode = FUSE_RMDIR;
req->in.h.nodeid = get_node_id(dir);
- req->inode = dir;
req->in.numargs = 1;
req->in.args[0].size = entry->d_name.len + 1;
req->in.args[0].value = entry->d_name.name;
@@ -510,8 +525,6 @@ static int fuse_rename(struct inode *olddir, struct dentry *oldent,
inarg.newdir = get_node_id(newdir);
req->in.h.opcode = FUSE_RENAME;
req->in.h.nodeid = get_node_id(olddir);
- req->inode = olddir;
- req->inode2 = newdir;
req->in.numargs = 3;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
@@ -558,7 +571,6 @@ static int fuse_link(struct dentry *entry, struct inode *newdir,
memset(&inarg, 0, sizeof(inarg));
inarg.oldnodeid = get_node_id(inode);
req->in.h.opcode = FUSE_LINK;
- req->inode2 = inode;
req->in.numargs = 2;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
@@ -587,7 +599,6 @@ int fuse_do_getattr(struct inode *inode)
req->in.h.opcode = FUSE_GETATTR;
req->in.h.nodeid = get_node_id(inode);
- req->inode = inode;
req->out.numargs = 1;
req->out.args[0].size = sizeof(arg);
req->out.args[0].value = &arg;
@@ -679,7 +690,6 @@ static int fuse_access(struct inode *inode, int mask)
inarg.mask = mask;
req->in.h.opcode = FUSE_ACCESS;
req->in.h.nodeid = get_node_id(inode);
- req->inode = inode;
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
@@ -820,7 +830,6 @@ static char *read_link(struct dentry *dentry)
}
req->in.h.opcode = FUSE_READLINK;
req->in.h.nodeid = get_node_id(inode);
- req->inode = inode;
req->out.argvar = 1;
req->out.numargs = 1;
req->out.args[0].size = PAGE_SIZE - 1;
@@ -939,7 +948,6 @@ static int fuse_setattr(struct dentry *entry, struct iattr *attr)
iattr_to_fattr(attr, &inarg);
req->in.h.opcode = FUSE_SETATTR;
req->in.h.nodeid = get_node_id(inode);
- req->inode = inode;
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
@@ -1002,7 +1010,6 @@ static int fuse_setxattr(struct dentry *entry, const char *name,
inarg.flags = flags;
req->in.h.opcode = FUSE_SETXATTR;
req->in.h.nodeid = get_node_id(inode);
- req->inode = inode;
req->in.numargs = 3;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
@@ -1041,7 +1048,6 @@ static ssize_t fuse_getxattr(struct dentry *entry, const char *name,
inarg.size = size;
req->in.h.opcode = FUSE_GETXATTR;
req->in.h.nodeid = get_node_id(inode);
- req->inode = inode;
req->in.numargs = 2;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
@@ -1091,7 +1097,6 @@ static ssize_t fuse_listxattr(struct dentry *entry, char *list, size_t size)
inarg.size = size;
req->in.h.opcode = FUSE_LISTXATTR;
req->in.h.nodeid = get_node_id(inode);
- req->inode = inode;
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
@@ -1135,7 +1140,6 @@ static int fuse_removexattr(struct dentry *entry, const char *name)
req->in.h.opcode = FUSE_REMOVEXATTR;
req->in.h.nodeid = get_node_id(inode);
- req->inode = inode;
req->in.numargs = 1;
req->in.args[0].size = strlen(name) + 1;
req->in.args[0].value = name;
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 087f3b734f4..1d59af306b2 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -30,7 +30,6 @@ static int fuse_send_open(struct inode *inode, struct file *file, int isdir,
inarg.flags = file->f_flags & ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC);
req->in.h.opcode = isdir ? FUSE_OPENDIR : FUSE_OPEN;
req->in.h.nodeid = get_node_id(inode);
- req->inode = inode;
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
@@ -113,37 +112,22 @@ int fuse_open_common(struct inode *inode, struct file *file, int isdir)
return err;
}
-/* Special case for failed iget in CREATE */
-static void fuse_release_end(struct fuse_conn *fc, struct fuse_req *req)
+struct fuse_req *fuse_release_fill(struct fuse_file *ff, u64 nodeid, int flags,
+ int opcode)
{
- /* If called from end_io_requests(), req has more than one
- reference and fuse_reset_request() cannot work */
- if (fc->connected) {
- u64 nodeid = req->in.h.nodeid;
- fuse_reset_request(req);
- fuse_send_forget(fc, req, nodeid, 1);
- } else
- fuse_put_request(fc, req);
-}
-
-void fuse_send_release(struct fuse_conn *fc, struct fuse_file *ff,
- u64 nodeid, struct inode *inode, int flags, int isdir)
-{
- struct fuse_req * req = ff->release_req;
+ struct fuse_req *req = ff->release_req;
struct fuse_release_in *inarg = &req->misc.release_in;
inarg->fh = ff->fh;
inarg->flags = flags;
- req->in.h.opcode = isdir ? FUSE_RELEASEDIR : FUSE_RELEASE;
+ req->in.h.opcode = opcode;
req->in.h.nodeid = nodeid;
- req->inode = inode;
req->in.numargs = 1;
req->in.args[0].size = sizeof(struct fuse_release_in);
req->in.args[0].value = inarg;
- request_send_background(fc, req);
- if (!inode)
- req->end = fuse_release_end;
kfree(ff);
+
+ return req;
}
int fuse_release_common(struct inode *inode, struct file *file, int isdir)
@@ -151,8 +135,15 @@ int fuse_release_common(struct inode *inode, struct file *file, int isdir)
struct fuse_file *ff = file->private_data;
if (ff) {
struct fuse_conn *fc = get_fuse_conn(inode);
- u64 nodeid = get_node_id(inode);
- fuse_send_release(fc, ff, nodeid, inode, file->f_flags, isdir);
+ struct fuse_req *req;
+
+ req = fuse_release_fill(ff, get_node_id(inode), file->f_flags,
+ isdir ? FUSE_RELEASEDIR : FUSE_RELEASE);
+
+ /* Hold vfsmount and dentry until release is finished */
+ req->vfsmount = mntget(file->f_vfsmnt);
+ req->dentry = dget(file->f_dentry);
+ request_send_background(fc, req);
}
/* Return value is ignored by VFS */
@@ -192,8 +183,6 @@ static int fuse_flush(struct file *file, fl_owner_t id)
inarg.fh = ff->fh;
req->in.h.opcode = FUSE_FLUSH;
req->in.h.nodeid = get_node_id(inode);
- req->inode = inode;
- req->file = file;
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
@@ -232,8 +221,6 @@ int fuse_fsync_common(struct file *file, struct dentry *de, int datasync,
inarg.fsync_flags = datasync ? 1 : 0;
req->in.h.opcode = isdir ? FUSE_FSYNCDIR : FUSE_FSYNC;
req->in.h.nodeid = get_node_id(inode);
- req->inode = inode;
- req->file = file;
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
@@ -266,8 +253,6 @@ void fuse_read_fill(struct fuse_req *req, struct file *file,
inarg->size = count;
req->in.h.opcode = opcode;
req->in.h.nodeid = get_node_id(inode);
- req->inode = inode;
- req->file = file;
req->in.numargs = 1;
req->in.args[0].size = sizeof(struct fuse_read_in);
req->in.args[0].value = inarg;
@@ -342,6 +327,8 @@ static void fuse_send_readpages(struct fuse_req *req, struct file *file,
req->out.page_zeroing = 1;
fuse_read_fill(req, file, inode, pos, count, FUSE_READ);
if (fc->async_read) {
+ get_file(file);
+ req->file = file;
req->end = fuse_readpages_end;
request_send_background(fc, req);
} else {
@@ -420,8 +407,6 @@ static size_t fuse_send_write(struct fuse_req *req, struct file *file,
inarg.size = count;
req->in.h.opcode = FUSE_WRITE;
req->in.h.nodeid = get_node_id(inode);
- req->inode = inode;
- req->file = file;
req->in.argpages = 1;
req->in.numargs = 2;
req->in.args[0].size = sizeof(struct fuse_write_in);
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 0474202cb5d..25f8581a770 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -8,12 +8,12 @@
#include <linux/fuse.h>
#include <linux/fs.h>
+#include <linux/mount.h>
#include <linux/wait.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <linux/backing-dev.h>
-#include <asm/semaphore.h>
/** Max number of pages that can be used in a single read request */
#define FUSE_MAX_PAGES_PER_REQ 32
@@ -135,9 +135,6 @@ struct fuse_req {
fuse_conn */
struct list_head list;
- /** Entry on the background list */
- struct list_head bg_entry;
-
/** refcount */
atomic_t count;
@@ -150,6 +147,9 @@ struct fuse_req {
/** True if the request has reply */
unsigned isreply:1;
+ /** Force sending of the request even if interrupted */
+ unsigned force:1;
+
/** The request was interrupted */
unsigned interrupted:1;
@@ -192,15 +192,15 @@ struct fuse_req {
/** offset of data on first page */
unsigned page_offset;
- /** Inode used in the request */
- struct inode *inode;
-
- /** Second inode used in the request (or NULL) */
- struct inode *inode2;
-
/** File used in the request (or NULL) */
struct file *file;
+ /** vfsmount used in release */
+ struct vfsmount *vfsmount;
+
+ /** dentry used in release */
+ struct dentry *dentry;
+
/** Request completion callback */
void (*end)(struct fuse_conn *, struct fuse_req *);
};
@@ -243,10 +243,6 @@ struct fuse_conn {
/** The list of requests under I/O */
struct list_head io;
- /** Requests put in the background (RELEASE or any other
- interrupted request) */
- struct list_head background;
-
/** Number of requests currently in the background */
unsigned num_background;
@@ -258,15 +254,9 @@ struct fuse_conn {
/** waitq for blocked connection */
wait_queue_head_t blocked_waitq;
- /** RW semaphore for exclusion with fuse_put_super() */
- struct rw_semaphore sbput_sem;
-
/** The next unique request id */
u64 reqctr;
- /** Mount is active */
- unsigned mounted;
-
/** Connection established, cleared on umount, connection
abort and device release */
unsigned connected;
@@ -383,12 +373,9 @@ 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);
-/**
- * Send a RELEASE request
- */
-void fuse_send_release(struct fuse_conn *fc, struct fuse_file *ff,
- u64 nodeid, struct inode *inode, int flags, int isdir);
-
+/** */
+struct fuse_req *fuse_release_fill(struct fuse_file *ff, u64 nodeid, int flags,
+ int opcode);
/**
* Send RELEASE or RELEASEDIR request
*/
@@ -446,11 +433,6 @@ struct fuse_req *fuse_request_alloc(void);
void fuse_request_free(struct fuse_req *req);
/**
- * Reinitialize a request, the preallocated flag is left unmodified
- */
-void fuse_reset_request(struct fuse_req *req);
-
-/**
* Reserve a preallocated request
*/
struct fuse_req *fuse_get_req(struct fuse_conn *fc);
@@ -476,11 +458,6 @@ void request_send_noreply(struct fuse_conn *fc, struct fuse_req *req);
*/
void request_send_background(struct fuse_conn *fc, struct fuse_req *req);
-/**
- * Release inodes and file associated with background request
- */
-void fuse_release_background(struct fuse_conn *fc, struct fuse_req *req);
-
/* Abort all requests */
void fuse_abort_conn(struct fuse_conn *fc);
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index a13c0f52905..0225729977c 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -11,7 +11,6 @@
#include <linux/pagemap.h>
#include <linux/slab.h>
#include <linux/file.h>
-#include <linux/mount.h>
#include <linux/seq_file.h>
#include <linux/init.h>
#include <linux/module.h>
@@ -204,20 +203,14 @@ static void fuse_put_super(struct super_block *sb)
{
struct fuse_conn *fc = get_fuse_conn_super(sb);
- down_write(&fc->sbput_sem);
- while (!list_empty(&fc->background))
- fuse_release_background(fc,
- list_entry(fc->background.next,
- struct fuse_req, bg_entry));
-
spin_lock(&fc->lock);
- fc->mounted = 0;
fc->connected = 0;
+ fc->blocked = 0;
spin_unlock(&fc->lock);
- up_write(&fc->sbput_sem);
/* Flush all readers on this fs */
kill_fasync(&fc->fasync, SIGIO, POLL_IN);
wake_up_all(&fc->waitq);
+ wake_up_all(&fc->blocked_waitq);
kobject_del(&fc->kobj);
kobject_put(&fc->kobj);
}
@@ -386,8 +379,6 @@ static struct fuse_conn *new_conn(void)
INIT_LIST_HEAD(&fc->pending);
INIT_LIST_HEAD(&fc->processing);
INIT_LIST_HEAD(&fc->io);
- INIT_LIST_HEAD(&fc->background);
- init_rwsem(&fc->sbput_sem);
kobj_set_kset_s(fc, connections_subsys);
kobject_init(&fc->kobj);
atomic_set(&fc->num_waiting, 0);
@@ -543,7 +534,6 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
goto err_kobject_del;
sb->s_root = root_dentry;
- fc->mounted = 1;
fc->connected = 1;
kobject_get(&fc->kobj);
file->private_data = fc;