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authorAl Viro <viro@ZenIV.linux.org.uk>2008-10-31 23:28:30 +0000
committerLinus Torvalds <torvalds@linux-foundation.org>2008-11-01 09:49:46 -0700
commit233e70f4228e78eb2f80dc6650f65d3ae3dbf17c (patch)
tree4e18fbe1851e6d2161b7f18265cb21f8a61e3ce7 /fs
parent3318a386e4ca68c76e0294363d29bdc46fcad670 (diff)
downloadconfigs-233e70f4228e78eb2f80dc6650f65d3ae3dbf17c.tar.gz
saner FASYNC handling on file close
As it is, all instances of ->release() for files that have ->fasync() need to remember to evict file from fasync lists; forgetting that creates a hole and we actually have a bunch that *does* forget. So let's keep our lives simple - let __fput() check FASYNC in file->f_flags and call ->fasync() there if it's been set. And lose that crap in ->release() instances - leaving it there is still valid, but we don't have to bother anymore. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/file_table.c4
-rw-r--r--fs/fuse/dev.c1
-rw-r--r--fs/inotify_user.c3
-rw-r--r--fs/pipe.c3
4 files changed, 4 insertions, 7 deletions
diff --git a/fs/file_table.c b/fs/file_table.c
index efc06faede6..5ad0eca6eea 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -269,6 +269,10 @@ void __fput(struct file *file)
eventpoll_release(file);
locks_remove_flock(file);
+ if (unlikely(file->f_flags & FASYNC)) {
+ if (file->f_op && file->f_op->fasync)
+ file->f_op->fasync(-1, file, 0);
+ }
if (file->f_op && file->f_op->release)
file->f_op->release(inode, file);
security_file_free(file);
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 87250b6a868..b72361479be 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1056,7 +1056,6 @@ static int fuse_dev_release(struct inode *inode, struct file *file)
end_requests(fc, &fc->pending);
end_requests(fc, &fc->processing);
spin_unlock(&fc->lock);
- fasync_helper(-1, file, 0, &fc->fasync);
fuse_conn_put(fc);
}
diff --git a/fs/inotify_user.c b/fs/inotify_user.c
index d85c7d931cd..d367e9b9286 100644
--- a/fs/inotify_user.c
+++ b/fs/inotify_user.c
@@ -537,9 +537,6 @@ static int inotify_release(struct inode *ignored, struct file *file)
inotify_dev_event_dequeue(dev);
mutex_unlock(&dev->ev_mutex);
- if (file->f_flags & FASYNC)
- inotify_fasync(-1, file, 0);
-
/* free this device: the put matching the get in inotify_init() */
put_inotify_dev(dev);
diff --git a/fs/pipe.c b/fs/pipe.c
index fcba6542b8d..7aea8b89baa 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -717,14 +717,12 @@ pipe_rdwr_fasync(int fd, struct file *filp, int on)
static int
pipe_read_release(struct inode *inode, struct file *filp)
{
- pipe_read_fasync(-1, filp, 0);
return pipe_release(inode, 1, 0);
}
static int
pipe_write_release(struct inode *inode, struct file *filp)
{
- pipe_write_fasync(-1, filp, 0);
return pipe_release(inode, 0, 1);
}
@@ -733,7 +731,6 @@ pipe_rdwr_release(struct inode *inode, struct file *filp)
{
int decr, decw;
- pipe_rdwr_fasync(-1, filp, 0);
decr = (filp->f_mode & FMODE_READ) != 0;
decw = (filp->f_mode & FMODE_WRITE) != 0;
return pipe_release(inode, decr, decw);