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| author | Miklos Szeredi <mszeredi@suse.cz> | 2010-12-07 20:16:56 +0100 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@suse.cz> | 2010-12-07 20:16:56 +0100 |
| commit | 1baa26b2be92fe9917e2f7ef46d423b5dfa4da71 (patch) | |
| tree | 1b4f24c149a01e74c17cb0c290952dd09778ca1d /include/linux/fuse.h | |
| parent | 02c048b919455aaa38628563cdcc2e691c8a9f53 (diff) | |
| download | lwn-1baa26b2be92fe9917e2f7ef46d423b5dfa4da71.tar.gz lwn-1baa26b2be92fe9917e2f7ef46d423b5dfa4da71.zip | |
fuse: fix ioctl ABI
In kernel ABI version 7.16 and later FUSE_IOCTL_RETRY reply from a
unrestricted IOCTL request shall return with an array of 'struct
fuse_ioctl_iovec' instead of 'struct iovec'. This fixes the ABI
ambiguity of 32bit vs. 64bit.
Reported-by: "ccmail111" <ccmail111@yahoo.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include/linux/fuse.h')
| -rw-r--r-- | include/linux/fuse.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/fuse.h b/include/linux/fuse.h index cf11881f4938..d464de53db43 100644 --- a/include/linux/fuse.h +++ b/include/linux/fuse.h @@ -44,6 +44,9 @@ * * 7.16 * - add BATCH_FORGET request + * - FUSE_IOCTL_UNRESTRICTED shall now return with array of 'struct + * fuse_ioctl_iovec' instead of ambiguous 'struct iovec' + * - add FUSE_IOCTL_32BIT flag */ #ifndef _LINUX_FUSE_H @@ -203,12 +206,14 @@ struct fuse_file_lock { * FUSE_IOCTL_COMPAT: 32bit compat ioctl on 64bit machine * FUSE_IOCTL_UNRESTRICTED: not restricted to well-formed ioctls, retry allowed * FUSE_IOCTL_RETRY: retry with new iovecs + * FUSE_IOCTL_32BIT: 32bit ioctl * * FUSE_IOCTL_MAX_IOV: maximum of in_iovecs + out_iovecs */ #define FUSE_IOCTL_COMPAT (1 << 0) #define FUSE_IOCTL_UNRESTRICTED (1 << 1) #define FUSE_IOCTL_RETRY (1 << 2) +#define FUSE_IOCTL_32BIT (1 << 3) #define FUSE_IOCTL_MAX_IOV 256 @@ -524,6 +529,11 @@ struct fuse_ioctl_in { __u32 out_size; }; +struct fuse_ioctl_iovec { + __u64 base; + __u64 len; +}; + struct fuse_ioctl_out { __s32 result; __u32 flags; |