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Message-Id: <20250107045710.1837756-1-sunjunchao2870@gmail.com>
Date: Tue, 7 Jan 2025 12:57:10 +0800
From: Julian Sun <sunjunchao2870@...il.com>
To: linux-ext4@...r.kernel.org
Cc: tytso@....edu,
adilger.kernel@...ger.ca,
jack@...e.cz,
Julian Sun <sunjunchao2870@...il.com>
Subject: [PATCH v2 4/5] ext4: Replace ext4_da_write_inline_data_begin() with ext4_generic_write_inline_data().
Replace the call to ext4_da_write_inline_data_begin() with
ext4_generic_write_inline_data(), and delete the
ext4_da_write_inline_data_begin().
Signed-off-by: Julian Sun <sunjunchao2870@...il.com>
---
fs/ext4/ext4.h | 10 ++---
fs/ext4/inline.c | 98 +++++-------------------------------------------
fs/ext4/inode.c | 4 +-
3 files changed, 16 insertions(+), 96 deletions(-)
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 44b0d418143c..78dd3408ff39 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -3569,11 +3569,11 @@ extern int ext4_try_to_write_inline_data(struct address_space *mapping,
struct folio **foliop);
int ext4_write_inline_data_end(struct inode *inode, loff_t pos, unsigned len,
unsigned copied, struct folio *folio);
-extern int ext4_da_write_inline_data_begin(struct address_space *mapping,
- struct inode *inode,
- loff_t pos, unsigned len,
- struct folio **foliop,
- void **fsdata);
+extern int ext4_generic_write_inline_data(struct address_space *mapping,
+ struct inode *inode,
+ loff_t pos, unsigned len,
+ struct folio **foliop,
+ void **fsdata, bool da);
extern int ext4_try_add_inline_entry(handle_t *handle,
struct ext4_filename *fname,
struct inode *dir, struct inode *inode);
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index 3e103e003afb..58d8fcfbecba 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -657,7 +657,15 @@ static int ext4_convert_inline_data_to_extent(struct address_space *mapping,
return ret;
}
-static int ext4_generic_write_inline_data(struct address_space *mapping,
+/*
+ * Prepare the write for the inline data.
+ * If the data can be written into the inode, we just read
+ * the page and make it uptodate, and start the journal.
+ * Otherwise read the page, makes it dirty so that it can be
+ * handle in writepages(the i_disksize update is left to the
+ * normal ext4_da_write_end).
+ */
+int ext4_generic_write_inline_data(struct address_space *mapping,
struct inode *inode,
loff_t pos, unsigned len,
struct folio **foliop,
@@ -967,94 +975,6 @@ static int ext4_da_convert_inline_data_to_extent(struct address_space *mapping,
return ret;
}
-/*
- * Prepare the write for the inline data.
- * If the data can be written into the inode, we just read
- * the page and make it uptodate, and start the journal.
- * Otherwise read the page, makes it dirty so that it can be
- * handle in writepages(the i_disksize update is left to the
- * normal ext4_da_write_end).
- */
-int ext4_da_write_inline_data_begin(struct address_space *mapping,
- struct inode *inode,
- loff_t pos, unsigned len,
- struct folio **foliop,
- void **fsdata)
-{
- int ret;
- handle_t *handle;
- struct folio *folio;
- struct ext4_iloc iloc;
- int retries = 0;
-
- ret = ext4_get_inode_loc(inode, &iloc);
- if (ret)
- return ret;
-
-retry_journal:
- handle = ext4_journal_start(inode, EXT4_HT_INODE, 1);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
- goto out;
- }
-
- ret = ext4_prepare_inline_data(handle, inode, pos + len);
- if (ret && ret != -ENOSPC)
- goto out_journal;
-
- if (ret == -ENOSPC) {
- ext4_journal_stop(handle);
- ret = ext4_da_convert_inline_data_to_extent(mapping,
- inode,
- fsdata);
- if (ret == -ENOSPC &&
- ext4_should_retry_alloc(inode->i_sb, &retries))
- goto retry_journal;
- goto out;
- }
-
- /*
- * We cannot recurse into the filesystem as the transaction
- * is already started.
- */
- folio = __filemap_get_folio(mapping, 0, FGP_WRITEBEGIN | FGP_NOFS,
- mapping_gfp_mask(mapping));
- if (IS_ERR(folio)) {
- ret = PTR_ERR(folio);
- goto out_journal;
- }
-
- down_read(&EXT4_I(inode)->xattr_sem);
- if (!ext4_has_inline_data(inode)) {
- ret = 0;
- goto out_release_page;
- }
-
- if (!folio_test_uptodate(folio)) {
- ret = ext4_read_inline_folio(inode, folio);
- if (ret < 0)
- goto out_release_page;
- }
- ret = ext4_journal_get_write_access(handle, inode->i_sb, iloc.bh,
- EXT4_JTR_NONE);
- if (ret)
- goto out_release_page;
-
- up_read(&EXT4_I(inode)->xattr_sem);
- *foliop = folio;
- brelse(iloc.bh);
- return 1;
-out_release_page:
- up_read(&EXT4_I(inode)->xattr_sem);
- folio_unlock(folio);
- folio_put(folio);
-out_journal:
- ext4_journal_stop(handle);
-out:
- brelse(iloc.bh);
- return ret;
-}
-
#ifdef INLINE_DIR_DEBUG
void ext4_show_inline_dir(struct inode *dir, struct buffer_head *bh,
void *inline_start, int inline_size)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 54bdd4884fe6..24a3b0ff4c8a 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2918,8 +2918,8 @@ static int ext4_da_write_begin(struct file *file, struct address_space *mapping,
trace_ext4_da_write_begin(inode, pos, len);
if (ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA)) {
- ret = ext4_da_write_inline_data_begin(mapping, inode, pos, len,
- foliop, fsdata);
+ ret = ext4_generic_write_inline_data(mapping, inode, pos, len,
+ foliop, fsdata, true);
if (ret < 0)
return ret;
if (ret == 1)
--
2.39.5
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