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f2fs: add node_io_flag for bio flags likewise data_io_flag

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This patch adds another way to attach bio flags to node writes.

Description:   Give a way to attach REQ_META|FUA to node writes
               given temperature-based bits. Now the bits indicate:
               *      REQ_META     |      REQ_FUA      |
               *    5 |    4 |   3 |    2 |    1 |   0 |
               * Cold | Warm | Hot | Cold | Warm | Hot |

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2020-06-04 11:49:43 -07:00
parent bc67c5d0ce
commit 32b6aba85c
4 changed files with 27 additions and 9 deletions
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fs/f2fs/f2fs.h
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@@ -1568,6 +1568,7 @@ struct f2fs_sb_info {
/* to attach REQ_META|REQ_FUA flags */
unsigned int data_io_flag;
unsigned int node_io_flag;
/* For sysfs suppport */
struct kobject s_kobj;