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Message-Id: <20221207112722.22220-10-jack@suse.cz> Date: Wed, 7 Dec 2022 12:27:13 +0100 From: Jan Kara <jack@...e.cz> To: Ted Tso <tytso@....edu> Cc: <linux-ext4@...r.kernel.org>, Christoph Hellwig <hch@...radead.org>, "Ritesh Harjani (IBM)" <ritesh.list@...il.com>, Jan Kara <jack@...e.cz>, Christoph Hellwig <hch@....de> Subject: [PATCH v4 10/13] ext4: Switch to using write_cache_pages() for data=journal writeout Instead of using generic_writepages(), let's use write_cache_pages() for writeout of journalled data. It will allow us to stop providing .writepage callback. Our data=journal writeback path would benefit from a larger cleanup and refactoring but that's for a separate cleanup series. Reviewed-by: Christoph Hellwig <hch@....de> Signed-off-by: Jan Kara <jack@...e.cz> --- fs/ext4/inode.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index b93a436bf5bc..f3b3792c1c96 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2705,6 +2705,12 @@ static int mpage_prepare_extent_to_map(struct mpage_da_data *mpd) return err; } +static int ext4_writepage_cb(struct page *page, struct writeback_control *wbc, + void *data) +{ + return ext4_writepage(page, wbc); +} + static int ext4_do_writepages(struct mpage_da_data *mpd) { struct writeback_control *wbc = mpd->wbc; @@ -2731,7 +2737,9 @@ static int ext4_do_writepages(struct mpage_da_data *mpd) goto out_writepages; if (ext4_should_journal_data(inode)) { - ret = generic_writepages(mapping, wbc); + blk_start_plug(&plug); + ret = write_cache_pages(mapping, wbc, ext4_writepage_cb, NULL); + blk_finish_plug(&plug); goto out_writepages; } -- 2.35.3
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