Searched hist:db6ec53b7e0320c8fad27e9a816e50080154bd51 (Results 1 – 3 of 3) sorted by relevance
| /openbmc/linux/fs/f2fs/ |
| H A D | checkpoint.c | diff db6ec53b7e0320c8fad27e9a816e50080154bd51 Wed May 29 12:58:45 CDT 2019 Jaegeuk Kim <jaegeuk@kernel.org> f2fs: add a rw_sem to cover quota flag changes
Two paths to update quota and f2fs_lock_op:
1.
- lock_op
| - quota_update
`- unlock_op
2.
- quota_update
- lock_op
`- unlock_op
But, we need to make a transaction on quota_update + lock_op in #2 case.
So, this patch introduces:
1. lock_op
2. down_write
3. check __need_flush
4. up_write
5. if there is dirty quota entries, flush them
6. otherwise, good to go
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
|
| H A D | super.c | diff db6ec53b7e0320c8fad27e9a816e50080154bd51 Wed May 29 12:58:45 CDT 2019 Jaegeuk Kim <jaegeuk@kernel.org> f2fs: add a rw_sem to cover quota flag changes
Two paths to update quota and f2fs_lock_op:
1.
- lock_op
| - quota_update
`- unlock_op
2.
- quota_update
- lock_op
`- unlock_op
But, we need to make a transaction on quota_update + lock_op in #2 case.
So, this patch introduces:
1. lock_op
2. down_write
3. check __need_flush
4. up_write
5. if there is dirty quota entries, flush them
6. otherwise, good to go
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
|
| H A D | f2fs.h | diff db6ec53b7e0320c8fad27e9a816e50080154bd51 Wed May 29 12:58:45 CDT 2019 Jaegeuk Kim <jaegeuk@kernel.org> f2fs: add a rw_sem to cover quota flag changes
Two paths to update quota and f2fs_lock_op:
1.
- lock_op
| - quota_update
`- unlock_op
2.
- quota_update
- lock_op
`- unlock_op
But, we need to make a transaction on quota_update + lock_op in #2 case.
So, this patch introduces:
1. lock_op
2. down_write
3. check __need_flush
4. up_write
5. if there is dirty quota entries, flush them
6. otherwise, good to go
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
|