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| author | Boaz Harrosh <bharrosh@panasas.com> | 2010-11-16 19:09:58 +0100 |
|---|---|---|
| committer | Boaz Harrosh <bharrosh@panasas.com> | 2011-08-07 04:35:31 +0200 |
| commit | e1042ba0991aab80ced34f7dade6ec25f22b4304 (patch) | |
| tree | 5953383f9235df91acfc2315a5c6fbdfb359ecf1 /fs/exofs/ios.c | |
| parent | exofs: Fix truncate for the raid-groups case (diff) | |
| download | linux-e1042ba0991aab80ced34f7dade6ec25f22b4304.tar.xz linux-e1042ba0991aab80ced34f7dade6ec25f22b4304.zip | |
exofs: Add offset/length to exofs_get_io_state
In future raid code we will need to know the IO offset/length
and if it's a read or write to determine some of the array
sizes we'll need.
So add a new exofs_get_rw_state() API for use when
writeing/reading. All other simple cases are left using the
old way.
The major change to this is that now we need to call
exofs_get_io_state later at inode.c::read_exec and
inode.c::write_exec when we actually know these things. So this
patch is kept separate so I can test things apart from other
changes.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Diffstat (limited to '')
| -rw-r--r-- | fs/exofs/ios.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/fs/exofs/ios.c b/fs/exofs/ios.c index fbb47ba2cd71..096405e51b94 100644 --- a/fs/exofs/ios.c +++ b/fs/exofs/ios.c @@ -69,8 +69,8 @@ out: return ret; } -int exofs_get_io_state(struct exofs_layout *layout, - struct exofs_io_state **pios) +int exofs_get_rw_state(struct exofs_layout *layout, bool is_reading, + u64 offset, u64 length, struct exofs_io_state **pios) { struct exofs_io_state *ios; @@ -87,10 +87,20 @@ int exofs_get_io_state(struct exofs_layout *layout, ios->layout = layout; ios->obj.partition = layout->s_pid; + ios->offset = offset; + ios->length = length; + ios->reading = is_reading; + *pios = ios; return 0; } +int exofs_get_io_state(struct exofs_layout *layout, + struct exofs_io_state **ios) +{ + return exofs_get_rw_state(layout, true, 0, 0, ios); +} + void exofs_put_io_state(struct exofs_io_state *ios) { if (ios) { |