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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-02-01 19:02:49 +0200
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-03-08 10:12:49 +0200
commit3c89f396dc78671cfbc1eb20ef1d5be6a9a02780 (patch)
tree6ed2ba3d484f8b92eed00b619128a79ecd094f4d /fs/ubifs/ubifs.h
parentca2ec61d157f23ec24aaa200f8016ea0a8aeb617 (diff)
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UBIFS: introduce write-buffer size field
Currently we assume write-buffer size is always min_io_size. But this is about to change and write-buffers may be of variable size. Namely, they will be of max_write_size at the beginning, but will get smaller when we are approaching the end of LEB. This is a preparation patch which introduces 'size' field in the write-buffer structure which carries the current write-buffer size. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'fs/ubifs/ubifs.h')
-rw-r--r--fs/ubifs/ubifs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index 942c1d3..3624950 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -646,6 +646,7 @@ typedef int (*ubifs_lpt_scan_callback)(struct ubifs_info *c,
* @offs: write-buffer offset in this logical eraseblock
* @avail: number of bytes available in the write-buffer
* @used: number of used bytes in the write-buffer
+ * @size: write-buffer size (in [@c->min_io_size, @c->max_write_size] range)
* @dtype: type of data stored in this LEB (%UBI_LONGTERM, %UBI_SHORTTERM,
* %UBI_UNKNOWN)
* @jhead: journal head the mutex belongs to (note, needed only to shut lockdep
@@ -680,6 +681,7 @@ struct ubifs_wbuf {
int offs;
int avail;
int used;
+ int size;
int dtype;
int jhead;
int (*sync_callback)(struct ubifs_info *c, int lnum, int free, int pad);