From: Matthew Wilcox <willy@infradead.org>
To: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-fsdevel@vger.kernel.org, gfs2@lists.linux.dev,
linux-nilfs@vger.kernel.org,
linux-ntfs-dev@lists.sourceforge.net, ntfs3@lists.linux.dev,
ocfs2-devel@lists.linux.dev, reiserfs-devel@vger.kernel.org,
linux-ext4@vger.kernel.org, Pankaj Raghav <p.raghav@samsung.com>
Subject: Re: [PATCH v2 01/27] buffer: Return bool from grow_dev_folio()
Date: Wed, 18 Oct 2023 15:19:02 +0100 [thread overview]
Message-ID: <ZS/pVp9I4M8p4vwh@casper.infradead.org> (raw)
In-Reply-To: <CAKFNMonj9XQe1PdeCny7N8MFAHwQVQNDf6A2S4g-gxX4iJLvZQ@mail.gmail.com>
On Wed, Oct 18, 2023 at 04:41:44AM +0900, Ryusuke Konishi wrote:
> On Tue, Oct 17, 2023 at 5:11 AM Matthew Wilcox (Oracle) wrote:
> >
> > Rename grow_dev_page() to grow_dev_folio() and make it return a bool.
> > Document what that bool means; it's more subtle than it first appears.
> > Also rename the 'failed' label to 'unlock' beacuse it's not exactly
> > 'failed'. It just hasn't succeeded.
>
> This changes the return type of grow_buffers() from "int" to "bool".
> But, it seems that the caller, __getblk_slow(), has not changed the
> type of the variable "ret" that receives its return value:
[...]
>
> So, it looks like the error check immediately after calling
> grow_buffers() will not branch like before.
> Is this okay ? Or, am I missing some other changes?
>
> Also, there is a typo in the changelog: "beacuse" -> "because".
Argh, yes. Andrew, please drop this patch for now. I'll submit
something better next cycle.
next prev parent reply other threads:[~2023-10-18 14:19 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-16 20:10 [PATCH v2 00/27] Finish the create_empty_buffers() transition Matthew Wilcox (Oracle)
2023-10-16 20:10 ` [PATCH v2 01/27] buffer: Return bool from grow_dev_folio() Matthew Wilcox (Oracle)
2023-10-17 19:41 ` Ryusuke Konishi
2023-10-18 14:19 ` Matthew Wilcox [this message]
2023-10-16 20:10 ` [PATCH v2 02/27] buffer: Make folio_create_empty_buffers() return a buffer_head Matthew Wilcox (Oracle)
2023-10-16 20:10 ` [PATCH v2 03/27] mpage: Convert map_buffer_to_folio() to folio_create_empty_buffers() Matthew Wilcox (Oracle)
2023-10-16 20:10 ` [PATCH v2 04/27] ext4: Convert to folio_create_empty_buffers Matthew Wilcox (Oracle)
2023-10-16 20:10 ` [PATCH v2 05/27] buffer: Add get_nth_bh() Matthew Wilcox (Oracle)
2023-10-16 20:10 ` [PATCH v2 06/27] gfs2: Convert inode unstuffing to use a folio Matthew Wilcox (Oracle)
2023-10-16 20:10 ` [PATCH v2 07/27] gfs2: Convert gfs2_getbuf() to folios Matthew Wilcox (Oracle)
2023-10-16 20:10 ` [PATCH v2 08/27] gfs2: Convert gfs2_getjdatabuf to use a folio Matthew Wilcox (Oracle)
2023-10-16 20:10 ` [PATCH v2 09/27] gfs2: Convert gfs2_write_buf_to_page() " Matthew Wilcox (Oracle)
2023-10-16 20:10 ` [PATCH v2 10/27] nilfs2: Convert nilfs_mdt_freeze_buffer " Matthew Wilcox (Oracle)
2023-10-16 20:10 ` [PATCH v2 11/27] nilfs2: Convert nilfs_grab_buffer() " Matthew Wilcox (Oracle)
2023-10-16 20:10 ` [PATCH v2 12/27] nilfs2: Convert nilfs_copy_page() to nilfs_copy_folio() Matthew Wilcox (Oracle)
2023-10-16 20:11 ` [PATCH v2 13/27] nilfs2: Convert nilfs_mdt_forget_block() to use a folio Matthew Wilcox (Oracle)
2023-10-16 20:11 ` [PATCH v2 14/27] nilfs2: Convert nilfs_mdt_get_frozen_buffer " Matthew Wilcox (Oracle)
2023-10-16 20:11 ` [PATCH v2 15/27] nilfs2: Remove nilfs_page_get_nth_block Matthew Wilcox (Oracle)
2023-10-16 20:11 ` [PATCH v2 16/27] nilfs2: Convert nilfs_lookup_dirty_data_buffers to use folio_create_empty_buffers Matthew Wilcox (Oracle)
2023-10-16 20:11 ` [PATCH v2 17/27] ntfs: Convert ntfs_read_block() to use a folio Matthew Wilcox (Oracle)
2023-10-16 20:11 ` [PATCH v2 18/27] ntfs: Convert ntfs_writepage " Matthew Wilcox (Oracle)
2023-10-16 20:11 ` [PATCH v2 19/27] ntfs: Convert ntfs_prepare_pages_for_non_resident_write() to folios Matthew Wilcox (Oracle)
2023-10-16 20:11 ` [PATCH v2 20/27] ntfs3: Convert ntfs_zero_range() to use a folio Matthew Wilcox (Oracle)
2023-10-16 20:11 ` [PATCH v2 21/27] ocfs2: Convert ocfs2_map_page_blocks " Matthew Wilcox (Oracle)
2023-10-16 20:11 ` [PATCH v2 22/27] reiserfs: Convert writepage " Matthew Wilcox (Oracle)
2023-10-16 20:11 ` [PATCH v2 23/27] ufs: Add ufs_get_locked_folio and ufs_put_locked_folio Matthew Wilcox (Oracle)
2023-10-16 20:11 ` [PATCH v2 24/27] ufs: Use ufs_get_locked_folio() in ufs_alloc_lastblock() Matthew Wilcox (Oracle)
2023-10-16 20:11 ` [PATCH v2 25/27] ufs; Convert ufs_change_blocknr() to use folios Matthew Wilcox (Oracle)
2023-10-16 20:11 ` [PATCH v2 26/27] ufs: Remove ufs_get_locked_page() Matthew Wilcox (Oracle)
2023-10-16 20:11 ` [PATCH v2 27/27] buffer: Remove folio_create_empty_buffers() Matthew Wilcox (Oracle)
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