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| author | Christoph Hellwig <hch@lst.de> | 2016-10-28 08:48:16 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-10-28 08:48:16 -0600 |
| commit | ef295ecf090d3e86e5b742fc6ab34f1122a43773 (patch) | |
| tree | e52e8be789b5654dfc43f626c50261f80615c03f /fs/f2fs/f2fs.h | |
| parent | e806402130c9c494e22c73ae9ead4e79d2a5811c (diff) | |
| download | op-kernel-dev-ef295ecf090d3e86e5b742fc6ab34f1122a43773.zip op-kernel-dev-ef295ecf090d3e86e5b742fc6ab34f1122a43773.tar.gz | |
block: better op and flags encoding
Now that we don't need the common flags to overflow outside the range
of a 32-bit type we can encode them the same way for both the bio and
request fields. This in addition allows us to place the operation
first (and make some room for more ops while we're at it) and to
stop having to shift around the operation values.
In addition this allows passing around only one value in the block layer
instead of two (and eventuall also in the file systems, but we can do
that later) and thus clean up a lot of code.
Last but not least this allows decreasing the size of the cmd_flags
field in struct request to 32-bits. Various functions passing this
value could also be updated, but I'd like to avoid the churn for now.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 9e8de18..2cf4f7f 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -688,7 +688,7 @@ struct f2fs_io_info { struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ int op; /* contains REQ_OP_ */ - int op_flags; /* rq_flag_bits */ + int op_flags; /* req_flag_bits */ block_t new_blkaddr; /* new block address to be written */ block_t old_blkaddr; /* old block address before Cow */ struct page *page; /* page to be written */ |
