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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-11-11 16:46:40 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@google.com> | 2017-09-25 15:13:29 -0700 |
| commit | 8b2c7581e85f6b3464763952ef54c82691b71c4e (patch) | |
| tree | 8275c76b47049545e8d4f617deed6f8366a9c345 /scripts | |
| parent | bd8e41540a703c57994fd4398753dbb9b6679d3e (diff) | |
f2fs: fix redundant block allocation
commit c040ff9d69fd1d782fe577ba9e35c1f5798158ae upstream.
In direct_IO path of f2fs_file_write_iter(),
1. f2fs_preallocate_blocks(F2FS_GET_BLOCK_PRE_DIO)
-> allocate LBA X
2. f2fs_direct_IO()
-> return 0;
Then,
f2fs_write_data_page() will allocate another LBA X+1.
This makes EIO triggered by HM-SMR.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions