From: Matthew Bobrowski <mbobrowski@mbobrowski.org>
To: tytso@mit.edu, jack@suse.cz, adilger.kernel@dilger.ca
Cc: linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org,
hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com
Subject: [PATCH v4 1/8] ext4: move out iomap field population into separate helper
Date: Thu, 3 Oct 2019 21:33:09 +1000 [thread overview]
Message-ID: <8b4499e47bea3841194850e1b3eeb924d87e69a5.1570100361.git.mbobrowski@mbobrowski.org> (raw)
In-Reply-To: <cover.1570100361.git.mbobrowski@mbobrowski.org>
Separate the iomap field population chunk into a separate simple
helper routine. This helps reducing the overall clutter within the
ext4_iomap_begin() callback, especially as we move across more code to
make use of iomap infrastructure.
Signed-off-by: Matthew Bobrowski <mbobrowski@mbobrowski.org>
---
fs/ext4/inode.c | 65 ++++++++++++++++++++++++++++---------------------
1 file changed, 37 insertions(+), 28 deletions(-)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 516faa280ced..1ccdc14c4d69 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3406,10 +3406,43 @@ static bool ext4_inode_datasync_dirty(struct inode *inode)
return inode->i_state & I_DIRTY_DATASYNC;
}
+static int ext4_set_iomap(struct inode *inode, struct iomap *iomap, u16 type,
+ unsigned long first_block, struct ext4_map_blocks *map)
+{
+ u8 blkbits = inode->i_blkbits;
+
+ iomap->flags = 0;
+ if (ext4_inode_datasync_dirty(inode))
+ iomap->flags |= IOMAP_F_DIRTY;
+ iomap->bdev = inode->i_sb->s_bdev;
+ iomap->dax_dev = EXT4_SB(inode->i_sb)->s_daxdev;
+ iomap->offset = (u64) first_block << blkbits;
+ iomap->length = (u64) map->m_len << blkbits;
+
+ if (type) {
+ iomap->type = type;
+ iomap->addr = IOMAP_NULL_ADDR;
+ } else {
+ if (map->m_flags & EXT4_MAP_MAPPED) {
+ iomap->type = IOMAP_MAPPED;
+ } else if (map->m_flags & EXT4_MAP_UNWRITTEN) {
+ iomap->type = IOMAP_UNWRITTEN;
+ } else {
+ WARN_ON_ONCE(1);
+ return -EIO;
+ }
+ iomap->addr = (u64) map->m_pblk << blkbits;
+ }
+
+ if (map->m_flags & EXT4_MAP_NEW)
+ iomap->flags |= IOMAP_F_NEW;
+ return 0;
+}
+
static int ext4_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
unsigned flags, struct iomap *iomap)
{
- struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+ u16 type = 0;
unsigned int blkbits = inode->i_blkbits;
unsigned long first_block, last_block;
struct ext4_map_blocks map;
@@ -3523,33 +3556,9 @@ static int ext4_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
return ret;
}
- iomap->flags = 0;
- if (ext4_inode_datasync_dirty(inode))
- iomap->flags |= IOMAP_F_DIRTY;
- iomap->bdev = inode->i_sb->s_bdev;
- iomap->dax_dev = sbi->s_daxdev;
- iomap->offset = (u64)first_block << blkbits;
- iomap->length = (u64)map.m_len << blkbits;
-
- if (ret == 0) {
- iomap->type = delalloc ? IOMAP_DELALLOC : IOMAP_HOLE;
- iomap->addr = IOMAP_NULL_ADDR;
- } else {
- if (map.m_flags & EXT4_MAP_MAPPED) {
- iomap->type = IOMAP_MAPPED;
- } else if (map.m_flags & EXT4_MAP_UNWRITTEN) {
- iomap->type = IOMAP_UNWRITTEN;
- } else {
- WARN_ON_ONCE(1);
- return -EIO;
- }
- iomap->addr = (u64)map.m_pblk << blkbits;
- }
-
- if (map.m_flags & EXT4_MAP_NEW)
- iomap->flags |= IOMAP_F_NEW;
-
- return 0;
+ if (!ret)
+ type = delalloc ? IOMAP_DELALLOC : IOMAP_HOLE;
+ return ext4_set_iomap(inode, iomap, type, first_block, &map);
}
static int ext4_iomap_end(struct inode *inode, loff_t offset, loff_t length,
--
2.20.1
next prev parent reply other threads:[~2019-10-03 11:33 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-03 11:32 [PATCH v4 0/8] ext4: port direct I/O to iomap infrastructure Matthew Bobrowski
2019-10-03 11:33 ` Matthew Bobrowski [this message]
2019-10-08 10:27 ` [PATCH v4 1/8] ext4: move out iomap field population into separate helper Jan Kara
2019-10-09 8:57 ` Matthew Bobrowski
2019-10-09 13:06 ` Jan Kara
2019-10-10 5:39 ` Matthew Bobrowski
2019-10-09 6:02 ` Ritesh Harjani
2019-10-09 7:07 ` Christoph Hellwig
2019-10-09 7:50 ` Ritesh Harjani
2019-10-09 9:09 ` Matthew Bobrowski
2019-10-03 11:33 ` [PATCH v4 2/8] ext4: move out IOMAP_WRITE path " Matthew Bobrowski
2019-10-08 10:31 ` Jan Kara
2019-10-09 9:18 ` Matthew Bobrowski
2019-10-09 6:22 ` Ritesh Harjani
2019-10-09 9:31 ` Matthew Bobrowski
2019-10-03 11:33 ` [PATCH v4 3/8] ext4: introduce new callback for IOMAP_REPORT operations Matthew Bobrowski
2019-10-08 10:42 ` Jan Kara
2019-10-09 9:41 ` Matthew Bobrowski
2019-10-09 6:00 ` Ritesh Harjani
2019-10-09 12:08 ` Matthew Bobrowski
2019-10-09 13:14 ` Ritesh Harjani
2019-10-03 11:34 ` [PATCH v4 4/8] ext4: introduce direct I/O read path using iomap infrastructure Matthew Bobrowski
2019-10-08 10:52 ` Jan Kara
2019-10-09 10:55 ` Matthew Bobrowski
2019-10-09 6:39 ` Ritesh Harjani
2019-10-03 11:34 ` [PATCH v4 5/8] ext4: move inode extension/truncate code out from ->iomap_end() callback Matthew Bobrowski
2019-10-08 11:25 ` Jan Kara
2019-10-09 10:18 ` Matthew Bobrowski
2019-10-09 12:51 ` Jan Kara
2019-10-10 5:44 ` Matthew Bobrowski
2019-10-09 6:27 ` Ritesh Harjani
2019-10-09 10:20 ` Matthew Bobrowski
2019-10-03 11:34 ` [PATCH v4 6/8] ext4: move inode extension checks out from ext4_iomap_alloc() Matthew Bobrowski
2019-10-08 11:27 ` Jan Kara
2019-10-09 10:21 ` Matthew Bobrowski
2019-10-09 6:30 ` Ritesh Harjani
2019-10-09 10:39 ` Matthew Bobrowski
2019-10-03 11:34 ` [PATCH v4 7/8] ext4: reorder map.m_flags checks in ext4_set_iomap() Matthew Bobrowski
2019-10-08 11:30 ` Jan Kara
2019-10-09 10:42 ` Matthew Bobrowski
2019-10-09 6:35 ` Ritesh Harjani
2019-10-09 10:43 ` Matthew Bobrowski
2019-10-03 11:35 ` [PATCH v4 8/8] ext4: introduce direct I/O write path using iomap infrastructure Matthew Bobrowski
2019-10-08 15:12 ` Jan Kara
2019-10-09 7:11 ` Christoph Hellwig
2019-10-09 13:41 ` Jan Kara
2019-10-09 11:53 ` Matthew Bobrowski
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