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| author | Pavel Emelyanov | 2013-10-10 15:12:18 +0200 |
|---|---|---|
| committer | Miklos Szeredi | 2014-04-02 15:38:50 +0200 |
| commit | 4d99ff8f12eb20c6cde292f185cb1c8c334ba0ed (patch) | |
| tree | a0668c9f45b4065ee935c1f653d32a11ae6ef788 /include/uapi/linux/fuse.h | |
| parent | fuse: Fix O_DIRECT operations vs cached writeback misorder (diff) | |
| download | kernel-qcow2-linux-4d99ff8f12eb20c6cde292f185cb1c8c334ba0ed.tar.gz kernel-qcow2-linux-4d99ff8f12eb20c6cde292f185cb1c8c334ba0ed.tar.xz kernel-qcow2-linux-4d99ff8f12eb20c6cde292f185cb1c8c334ba0ed.zip | |
fuse: Turn writeback cache on
Introduce a bit kernel and userspace exchange between each-other on
the init stage and turn writeback on if the userspace want this and
mount option 'allow_wbcache' is present (controlled by fusermount).
Also add each writable file into per-inode write list and call the
generic_file_aio_write to make use of the Linux page cache engine.
Signed-off-by: Maxim Patlasov <MPatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Diffstat (limited to 'include/uapi/linux/fuse.h')
| -rw-r--r-- | include/uapi/linux/fuse.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h index 60bb2f9f7b74..cf4750e1bb49 100644 --- a/include/uapi/linux/fuse.h +++ b/include/uapi/linux/fuse.h @@ -93,6 +93,9 @@ * * 7.22 * - add FUSE_ASYNC_DIO + * + * 7.23 + * - add FUSE_WRITEBACK_CACHE */ #ifndef _LINUX_FUSE_H @@ -128,7 +131,7 @@ #define FUSE_KERNEL_VERSION 7 /** Minor version number of this interface */ -#define FUSE_KERNEL_MINOR_VERSION 22 +#define FUSE_KERNEL_MINOR_VERSION 23 /** The node ID of the root inode */ #define FUSE_ROOT_ID 1 @@ -219,6 +222,7 @@ struct fuse_file_lock { * FUSE_DO_READDIRPLUS: do READDIRPLUS (READDIR+LOOKUP in one) * FUSE_READDIRPLUS_AUTO: adaptive readdirplus * FUSE_ASYNC_DIO: asynchronous direct I/O submission + * FUSE_WRITEBACK_CACHE: use writeback cache for buffered writes */ #define FUSE_ASYNC_READ (1 << 0) #define FUSE_POSIX_LOCKS (1 << 1) @@ -236,6 +240,7 @@ struct fuse_file_lock { #define FUSE_DO_READDIRPLUS (1 << 13) #define FUSE_READDIRPLUS_AUTO (1 << 14) #define FUSE_ASYNC_DIO (1 << 15) +#define FUSE_WRITEBACK_CACHE (1 << 16) /** * CUSE INIT request/reply flags |