f2fs: fix deadlock between quota writes and checkpoint
f2fs_write_data_pages(quota_mapping) __f2fs_write_data_pages f2fs_write_checkpoint * blk_start_plug(&plug); * add bio in write_io[DATA] - block_operations - skip syncing quota by >DEFAULT_RETRY_QUOTA_FLUSH_COUNT - down_write(&sbi->node_write); - f2fs_write_single_data_page - down_read(node_write) - f2fs_wait_on_all_pages(F2FS_WB_CP_DATA); Change-Id: I0081e701db50dee0b915c788e875d16a2c7da73d Signed-off-by: Daeho Jeong <daehojeong@google.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> Git-commit: 1fd280188d1f1e7318264a34aba435f3b69e71e8 Git-repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/ Signed-off-by: Sayali Lokhande <sayalil@codeaurora.org>
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@ -1269,6 +1269,8 @@ void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type)
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if (type == F2FS_DIRTY_META)
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f2fs_sync_meta_pages(sbi, META, LONG_MAX,
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FS_CP_META_IO);
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else if (type == F2FS_WB_CP_DATA)
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f2fs_submit_merged_write(sbi, DATA);
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io_schedule_timeout(DEFAULT_IO_TIMEOUT);
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}
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finish_wait(&sbi->cp_wait, &wait);
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