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| author | Miklos Szeredi <mszeredi@suse.cz> | 2011-02-25 14:44:58 +0100 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@suse.cz> | 2011-02-25 14:44:58 +0100 |
| commit | 5a18ec176c934ca1bc9dc61580a5e0e90a9b5733 (patch) | |
| tree | 6995509f59166fff90ce240ce72e3858f61ac101 /fs/fuse/fuse_i.h | |
| parent | 4662db446190ddef8fbab024f72dee77dd04b8f2 (diff) | |
| download | linux-5a18ec176c934ca1bc9dc61580a5e0e90a9b5733.tar.gz linux-5a18ec176c934ca1bc9dc61580a5e0e90a9b5733.tar.bz2 linux-5a18ec176c934ca1bc9dc61580a5e0e90a9b5733.zip | |
fuse: fix hang of single threaded fuseblk filesystem
Single threaded NTFS-3G could get stuck if a delayed RELEASE reply
triggered a DESTROY request via path_put().
Fix this by
a) making RELEASE requests synchronous, whenever possible, on fuseblk
filesystems
b) if not possible (triggered by an asynchronous read/write) then do
the path_put() in a separate thread with schedule_work().
Reported-by: Oliver Neukum <oneukum@suse.de>
Cc: stable@kernel.org
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Diffstat (limited to 'fs/fuse/fuse_i.h')
| -rw-r--r-- | fs/fuse/fuse_i.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index ae5744a2f9e9..d4286947bc2c 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -21,6 +21,7 @@ #include <linux/rwsem.h> #include <linux/rbtree.h> #include <linux/poll.h> +#include <linux/workqueue.h> /** Max number of pages that can be used in a single read request */ #define FUSE_MAX_PAGES_PER_REQ 32 @@ -262,7 +263,10 @@ struct fuse_req { /** Data for asynchronous requests */ union { struct { - struct fuse_release_in in; + union { + struct fuse_release_in in; + struct work_struct work; + }; struct path path; } release; struct fuse_init_in init_in; |