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-rw-r--r--fs/ext4/ext4.h2
-rw-r--r--fs/ext4/extents.c6
-rw-r--r--fs/ext4/inline.c6
-rw-r--r--fs/ext4/inode.c323
-rw-r--r--fs/ext4/move_extent.c3
-rw-r--r--fs/ext4/xattr.c2
6 files changed, 210 insertions, 132 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index fe3366e98493..9ac0a7d4fa0c 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -3064,9 +3064,9 @@ extern int ext4_punch_hole(struct file *file, loff_t offset, loff_t length);
extern void ext4_set_inode_flags(struct inode *, bool init);
extern int ext4_alloc_da_blocks(struct inode *inode);
extern void ext4_set_aops(struct inode *inode);
-extern int ext4_writepage_trans_blocks(struct inode *);
extern int ext4_normal_submit_inode_data_buffers(struct jbd2_inode *jinode);
extern int ext4_chunk_trans_blocks(struct inode *, int nrblocks);
+extern int ext4_chunk_trans_extent(struct inode *inode, int nrblocks);
extern int ext4_meta_trans_blocks(struct inode *inode, int lblocks,
int pextents);
extern int ext4_zero_partial_blocks(handle_t *handle, struct inode *inode,
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index b543a46fc809..f0f155458697 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -5171,7 +5171,7 @@ ext4_ext_shift_path_extents(struct ext4_ext_path *path, ext4_lblk_t shift,
credits = depth + 2;
}
- restart_credits = ext4_writepage_trans_blocks(inode);
+ restart_credits = ext4_chunk_trans_extent(inode, 0);
err = ext4_datasem_ensure_credits(handle, inode, credits,
restart_credits, 0);
if (err) {
@@ -5431,7 +5431,7 @@ static int ext4_collapse_range(struct file *file, loff_t offset, loff_t len)
truncate_pagecache(inode, start);
- credits = ext4_writepage_trans_blocks(inode);
+ credits = ext4_chunk_trans_extent(inode, 0);
handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE, credits);
if (IS_ERR(handle))
return PTR_ERR(handle);
@@ -5527,7 +5527,7 @@ static int ext4_insert_range(struct file *file, loff_t offset, loff_t len)
truncate_pagecache(inode, start);
- credits = ext4_writepage_trans_blocks(inode);
+ credits = ext4_chunk_trans_extent(inode, 0);
handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE, credits);
if (IS_ERR(handle))
return PTR_ERR(handle);
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index 05313c8ffb9c..38874d62f88c 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -570,7 +570,7 @@ static int ext4_convert_inline_data_to_extent(struct address_space *mapping,
return 0;
}
- needed_blocks = ext4_writepage_trans_blocks(inode);
+ needed_blocks = ext4_chunk_trans_extent(inode, 1);
ret = ext4_get_inode_loc(inode, &iloc);
if (ret)
@@ -1874,7 +1874,7 @@ int ext4_inline_data_truncate(struct inode *inode, int *has_inline)
};
- needed_blocks = ext4_writepage_trans_blocks(inode);
+ needed_blocks = ext4_chunk_trans_extent(inode, 1);
handle = ext4_journal_start(inode, EXT4_HT_INODE, needed_blocks);
if (IS_ERR(handle))
return PTR_ERR(handle);
@@ -1994,7 +1994,7 @@ int ext4_convert_inline_data(struct inode *inode)
return 0;
}
- needed_blocks = ext4_writepage_trans_blocks(inode);
+ needed_blocks = ext4_chunk_trans_extent(inode, 1);
iloc.bh = NULL;
error = ext4_get_inode_loc(inode, &iloc);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 0f316632b8dd..3df0796a3010 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -877,6 +877,26 @@ static void ext4_update_bh_state(struct buffer_head *bh, unsigned long flags)
} while (unlikely(!try_cmpxchg(&bh->b_state, &old_state, new_state)));
}
+/*
+ * Make sure that the current journal transaction has enough credits to map
+ * one extent. Return -EAGAIN if it cannot extend the current running
+ * transaction.
+ */
+static inline int ext4_journal_ensure_extent_credits(handle_t *handle,
+ struct inode *inode)
+{
+ int credits;
+ int ret;
+
+ /* Called from ext4_da_write_begin() which has no handle started? */
+ if (!handle)
+ return 0;
+
+ credits = ext4_chunk_trans_blocks(inode, 1);
+ ret = __ext4_journal_ensure_credits(handle, credits, credits, 0);
+ return ret <= 0 ? ret : -EAGAIN;
+}
+
static int _ext4_get_block(struct inode *inode, sector_t iblock,
struct buffer_head *bh, int flags)
{
@@ -1175,7 +1195,9 @@ int ext4_block_write_begin(handle_t *handle, struct folio *folio,
clear_buffer_new(bh);
if (!buffer_mapped(bh)) {
WARN_ON(bh->b_size != blocksize);
- err = get_block(inode, block, bh, 1);
+ err = ext4_journal_ensure_extent_credits(handle, inode);
+ if (!err)
+ err = get_block(inode, block, bh, 1);
if (err)
break;
if (buffer_new(bh)) {
@@ -1274,7 +1296,8 @@ static int ext4_write_begin(struct file *file, struct address_space *mapping,
* Reserve one block more for addition to orphan list in case
* we allocate blocks but write fails for some reason
*/
- needed_blocks = ext4_writepage_trans_blocks(inode) + 1;
+ needed_blocks = ext4_chunk_trans_extent(inode,
+ ext4_journal_blocks_per_folio(inode)) + 1;
index = pos >> PAGE_SHIFT;
if (ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA)) {
@@ -1374,8 +1397,9 @@ retry_journal:
ext4_orphan_del(NULL, inode);
}
- if (ret == -ENOSPC &&
- ext4_should_retry_alloc(inode->i_sb, &retries))
+ if (ret == -EAGAIN ||
+ (ret == -ENOSPC &&
+ ext4_should_retry_alloc(inode->i_sb, &retries)))
goto retry_journal;
folio_put(folio);
return ret;
@@ -1668,11 +1692,12 @@ struct mpage_da_data {
unsigned int can_map:1; /* Can writepages call map blocks? */
/* These are internal state of ext4_do_writepages() */
- pgoff_t first_page; /* The first page to write */
- pgoff_t next_page; /* Current page to examine */
- pgoff_t last_page; /* Last page to examine */
+ loff_t start_pos; /* The start pos to write */
+ loff_t next_pos; /* Current pos to examine */
+ loff_t end_pos; /* Last pos to examine */
+
/*
- * Extent to map - this can be after first_page because that can be
+ * Extent to map - this can be after start_pos because that can be
* fully mapped. We somewhat abuse m_flags to store whether the extent
* is delalloc or unwritten.
*/
@@ -1692,38 +1717,38 @@ static void mpage_release_unused_pages(struct mpage_da_data *mpd,
struct inode *inode = mpd->inode;
struct address_space *mapping = inode->i_mapping;
- /* This is necessary when next_page == 0. */
- if (mpd->first_page >= mpd->next_page)
+ /* This is necessary when next_pos == 0. */
+ if (mpd->start_pos >= mpd->next_pos)
return;
mpd->scanned_until_end = 0;
- index = mpd->first_page;
- end = mpd->next_page - 1;
if (invalidate) {
ext4_lblk_t start, last;
- start = index << (PAGE_SHIFT - inode->i_blkbits);
- last = end << (PAGE_SHIFT - inode->i_blkbits);
+ start = EXT4_B_TO_LBLK(inode, mpd->start_pos);
+ last = mpd->next_pos >> inode->i_blkbits;
/*
* avoid racing with extent status tree scans made by
* ext4_insert_delayed_block()
*/
down_write(&EXT4_I(inode)->i_data_sem);
- ext4_es_remove_extent(inode, start, last - start + 1);
+ ext4_es_remove_extent(inode, start, last - start);
up_write(&EXT4_I(inode)->i_data_sem);
}
folio_batch_init(&fbatch);
- while (index <= end) {
- nr = filemap_get_folios(mapping, &index, end, &fbatch);
+ index = mpd->start_pos >> PAGE_SHIFT;
+ end = mpd->next_pos >> PAGE_SHIFT;
+ while (index < end) {
+ nr = filemap_get_folios(mapping, &index, end - 1, &fbatch);
if (nr == 0)
break;
for (i = 0; i < nr; i++) {
struct folio *folio = fbatch.folios[i];
- if (folio->index < mpd->first_page)
+ if (folio_pos(folio) < mpd->start_pos)
continue;
- if (folio_next_index(folio) - 1 > end)
+ if (folio_next_index(folio) > end)
continue;
BUG_ON(!folio_test_locked(folio));
BUG_ON(folio_test_writeback(folio));
@@ -2025,7 +2050,8 @@ int ext4_da_get_block_prep(struct inode *inode, sector_t iblock,
static void mpage_folio_done(struct mpage_da_data *mpd, struct folio *folio)
{
- mpd->first_page += folio_nr_pages(folio);
+ mpd->start_pos += folio_size(folio);
+ mpd->wbc->nr_to_write -= folio_nr_pages(folio);
folio_unlock(folio);
}
@@ -2035,7 +2061,7 @@ static int mpage_submit_folio(struct mpage_da_data *mpd, struct folio *folio)
loff_t size;
int err;
- BUG_ON(folio->index != mpd->first_page);
+ WARN_ON_ONCE(folio_pos(folio) != mpd->start_pos);
folio_clear_dirty_for_io(folio);
/*
* We have to be very careful here! Nothing protects writeback path
@@ -2056,8 +2082,6 @@ static int mpage_submit_folio(struct mpage_da_data *mpd, struct folio *folio)
!ext4_verity_in_progress(mpd->inode))
len = size & (len - 1);
err = ext4_bio_write_folio(&mpd->io_submit, folio, len);
- if (!err)
- mpd->wbc->nr_to_write -= folio_nr_pages(folio);
return err;
}
@@ -2324,6 +2348,11 @@ static int mpage_map_one_extent(handle_t *handle, struct mpage_da_data *mpd)
int get_blocks_flags;
int err, dioread_nolock;
+ /* Make sure transaction has enough credits for this extent */
+ err = ext4_journal_ensure_extent_credits(handle, inode);
+ if (err < 0)
+ return err;
+
trace_ext4_da_write_pages_extent(inode, map);
/*
* Call ext4_map_blocks() to allocate any delayed allocation blocks, or
@@ -2363,6 +2392,47 @@ static int mpage_map_one_extent(handle_t *handle, struct mpage_da_data *mpd)
}
/*
+ * This is used to submit mapped buffers in a single folio that is not fully
+ * mapped for various reasons, such as insufficient space or journal credits.
+ */
+static int mpage_submit_partial_folio(struct mpage_da_data *mpd)
+{
+ struct inode *inode = mpd->inode;
+ struct folio *folio;
+ loff_t pos;
+ int ret;
+
+ folio = filemap_get_folio(inode->i_mapping,
+ mpd->start_pos >> PAGE_SHIFT);
+ if (IS_ERR(folio))
+ return PTR_ERR(folio);
+ /*
+ * The mapped position should be within the current processing folio
+ * but must not be the folio start position.
+ */
+ pos = ((loff_t)mpd->map.m_lblk) << inode->i_blkbits;
+ if (WARN_ON_ONCE((folio_pos(folio) == pos) ||
+ !folio_contains(folio, pos >> PAGE_SHIFT)))
+ return -EINVAL;
+
+ ret = mpage_submit_folio(mpd, folio);
+ if (ret)
+ goto out;
+ /*
+ * Update start_pos to prevent this folio from being released in
+ * mpage_release_unused_pages(), it will be reset to the aligned folio
+ * pos when this folio is written again in the next round. Additionally,
+ * do not update wbc->nr_to_write here, as it will be updated once the
+ * entire folio has finished processing.
+ */
+ mpd->start_pos = pos;
+out:
+ folio_unlock(folio);
+ folio_put(folio);
+ return ret;
+}
+
+/*
* mpage_map_and_submit_extent - map extent starting at mpd->lblk of length
* mpd->len and submit pages underlying it for IO
*
@@ -2410,10 +2480,18 @@ static int mpage_map_and_submit_extent(handle_t *handle,
* In the case of ENOSPC, if ext4_count_free_blocks()
* is non-zero, a commit should free up blocks.
*/
- if ((err == -ENOMEM) ||
+ if ((err == -ENOMEM) || (err == -EAGAIN) ||
(err == -ENOSPC && ext4_count_free_clusters(sb))) {
- if (progress)
+ /*
+ * We may have already allocated extents for
+ * some bhs inside the folio, issue the
+ * corresponding data to prevent stale data.
+ */
+ if (progress) {
+ if (mpage_submit_partial_folio(mpd))
+ goto invalidate_dirty_pages;
goto update_disksize;
+ }
return err;
}
ext4_msg(sb, KERN_CRIT,
@@ -2447,7 +2525,7 @@ update_disksize:
* Update on-disk size after IO is submitted. Races with
* truncate are avoided by checking i_size under i_data_sem.
*/
- disksize = ((loff_t)mpd->first_page) << PAGE_SHIFT;
+ disksize = mpd->start_pos;
if (disksize > READ_ONCE(EXT4_I(inode)->i_disksize)) {
int err2;
loff_t i_size;
@@ -2471,21 +2549,6 @@ update_disksize:
return err;
}
-/*
- * Calculate the total number of credits to reserve for one writepages
- * iteration. This is called from ext4_writepages(). We map an extent of
- * up to MAX_WRITEPAGES_EXTENT_LEN blocks and then we go on and finish mapping
- * the last partial page. So in total we can map MAX_WRITEPAGES_EXTENT_LEN +
- * bpp - 1 blocks in bpp different extents.
- */
-static int ext4_da_writepages_trans_blocks(struct inode *inode)
-{
- int bpp = ext4_journal_blocks_per_folio(inode);
-
- return ext4_meta_trans_blocks(inode,
- MAX_WRITEPAGES_EXTENT_LEN + bpp - 1, bpp);
-}
-
static int ext4_journal_folio_buffers(handle_t *handle, struct folio *folio,
size_t len)
{
@@ -2550,8 +2613,8 @@ static int mpage_prepare_extent_to_map(struct mpage_da_data *mpd)
struct address_space *mapping = mpd->inode->i_mapping;
struct folio_batch fbatch;
unsigned int nr_folios;
- pgoff_t index = mpd->first_page;
- pgoff_t end = mpd->last_page;
+ pgoff_t index = mpd->start_pos >> PAGE_SHIFT;
+ pgoff_t end = mpd->end_pos >> PAGE_SHIFT;
xa_mark_t tag;
int i, err = 0;
int blkbits = mpd->inode->i_blkbits;
@@ -2566,7 +2629,7 @@ static int mpage_prepare_extent_to_map(struct mpage_da_data *mpd)
tag = PAGECACHE_TAG_DIRTY;
mpd->map.m_len = 0;
- mpd->next_page = index;
+ mpd->next_pos = mpd->start_pos;
if (ext4_should_journal_data(mpd->inode)) {
handle = ext4_journal_start(mpd->inode, EXT4_HT_WRITE_PAGE,
bpp);
@@ -2597,7 +2660,8 @@ static int mpage_prepare_extent_to_map(struct mpage_da_data *mpd)
goto out;
/* If we can't merge this page, we are done. */
- if (mpd->map.m_len > 0 && mpd->next_page != folio->index)
+ if (mpd->map.m_len > 0 &&
+ mpd->next_pos != folio_pos(folio))
goto out;
if (handle) {
@@ -2643,8 +2707,8 @@ static int mpage_prepare_extent_to_map(struct mpage_da_data *mpd)
}
if (mpd->map.m_len == 0)
- mpd->first_page = folio->index;
- mpd->next_page = folio_next_index(folio);
+ mpd->start_pos = folio_pos(folio);
+ mpd->next_pos = folio_pos(folio) + folio_size(folio);
/*
* Writeout when we cannot modify metadata is simple.
* Just submit the page. For data=journal mode we
@@ -2772,12 +2836,12 @@ static int ext4_do_writepages(struct mpage_da_data *mpd)
mpd->journalled_more_data = 0;
if (ext4_should_dioread_nolock(inode)) {
+ int bpf = ext4_journal_blocks_per_folio(inode);
/*
* We may need to convert up to one extent per block in
- * the page and we may dirty the inode.
+ * the folio and we may dirty the inode.
*/
- rsv_blocks = 1 + ext4_chunk_trans_blocks(inode,
- PAGE_SIZE >> inode->i_blkbits);
+ rsv_blocks = 1 + ext4_ext_index_trans_blocks(inode, bpf);
}
if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
@@ -2787,18 +2851,18 @@ static int ext4_do_writepages(struct mpage_da_data *mpd)
writeback_index = mapping->writeback_index;
if (writeback_index)
cycled = 0;
- mpd->first_page = writeback_index;
- mpd->last_page = -1;
+ mpd->start_pos = writeback_index << PAGE_SHIFT;
+ mpd->end_pos = LLONG_MAX;
} else {
- mpd->first_page = wbc->range_start >> PAGE_SHIFT;
- mpd->last_page = wbc->range_end >> PAGE_SHIFT;
+ mpd->start_pos = wbc->range_start;
+ mpd->end_pos = wbc->range_end;
}
ext4_io_submit_init(&mpd->io_submit, wbc);
retry:
if (wbc->sync_mode == WB_SYNC_ALL || wbc->tagged_writepages)
- tag_pages_for_writeback(mapping, mpd->first_page,
- mpd->last_page);
+ tag_pages_for_writeback(mapping, mpd->start_pos >> PAGE_SHIFT,
+ mpd->end_pos >> PAGE_SHIFT);
blk_start_plug(&plug);
/*
@@ -2841,8 +2905,14 @@ retry:
* not supported by delalloc.
*/
BUG_ON(ext4_should_journal_data(inode));
- needed_blocks = ext4_da_writepages_trans_blocks(inode);
-
+ /*
+ * Calculate the number of credits needed to reserve for one
+ * extent of up to MAX_WRITEPAGES_EXTENT_LEN blocks. It will
+ * attempt to extend the transaction or start a new iteration
+ * if the reserved credits are insufficient.
+ */
+ needed_blocks = ext4_chunk_trans_blocks(inode,
+ MAX_WRITEPAGES_EXTENT_LEN);
/* start a new transaction */
handle = ext4_journal_start_with_reserve(inode,
EXT4_HT_WRITE_PAGE, needed_blocks, rsv_blocks);
@@ -2858,7 +2928,8 @@ retry:
}
mpd->do_map = 1;
- trace_ext4_da_write_pages(inode, mpd->first_page, wbc);
+ trace_ext4_da_write_folios_start(inode, mpd->start_pos,
+ mpd->next_pos, wbc);
ret = mpage_prepare_extent_to_map(mpd);
if (!ret && mpd->map.m_len)
ret = mpage_map_and_submit_extent(handle, mpd,
@@ -2896,6 +2967,8 @@ retry:
} else
ext4_put_io_end(mpd->io_submit.io_end);
mpd->io_submit.io_end = NULL;
+ trace_ext4_da_write_folios_end(inode, mpd->start_pos,
+ mpd->next_pos, wbc, ret);
if (ret == -ENOSPC && sbi->s_journal) {
/*
@@ -2907,6 +2980,8 @@ retry:
ret = 0;
continue;
}
+ if (ret == -EAGAIN)
+ ret = 0;
/* Fatal error - ENOMEM, EIO... */
if (ret)
break;
@@ -2915,8 +2990,8 @@ unplug:
blk_finish_plug(&plug);
if (!ret && !cycled && wbc->nr_to_write > 0) {
cycled = 1;
- mpd->last_page = writeback_index - 1;
- mpd->first_page = 0;
+ mpd->end_pos = (writeback_index << PAGE_SHIFT) - 1;
+ mpd->start_pos = 0;
goto retry;
}
@@ -2926,7 +3001,7 @@ unplug:
* Set the writeback_index so that range_cyclic
* mode will write it back later
*/
- mapping->writeback_index = mpd->first_page;
+ mapping->writeback_index = mpd->start_pos >> PAGE_SHIFT;
out_writepages:
trace_ext4_writepages_result(inode, wbc, ret,
@@ -4390,7 +4465,7 @@ int ext4_punch_hole(struct file *file, loff_t offset, loff_t length)
return ret;
if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))
- credits = ext4_writepage_trans_blocks(inode);
+ credits = ext4_chunk_trans_extent(inode, 2);
else
credits = ext4_blocks_for_truncate(inode);
handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE, credits);
@@ -4539,7 +4614,7 @@ int ext4_truncate(struct inode *inode)
}
if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))
- credits = ext4_writepage_trans_blocks(inode);
+ credits = ext4_chunk_trans_extent(inode, 1);
else
credits = ext4_blocks_for_truncate(inode);
@@ -6182,25 +6257,19 @@ int ext4_meta_trans_blocks(struct inode *inode, int lblocks, int pextents)
}
/*
- * Calculate the total number of credits to reserve to fit
- * the modification of a single pages into a single transaction,
- * which may include multiple chunks of block allocations.
- *
- * This could be called via ext4_write_begin()
- *
- * We need to consider the worse case, when
- * one new block per extent.
+ * Calculate the journal credits for modifying the number of blocks
+ * in a single extent within one transaction. 'nrblocks' is used only
+ * for non-extent inodes. For extent type inodes, 'nrblocks' can be
+ * zero if the exact number of blocks is unknown.
*/
-int ext4_writepage_trans_blocks(struct inode *inode)
+int ext4_chunk_trans_extent(struct inode *inode, int nrblocks)
{
- int bpp = ext4_journal_blocks_per_folio(inode);
int ret;
- ret = ext4_meta_trans_blocks(inode, bpp, bpp);
-
+ ret = ext4_meta_trans_blocks(inode, nrblocks, 1);
/* Account for data blocks for journalled mode */
if (ext4_should_journal_data(inode))
- ret += bpp;
+ ret += nrblocks;
return ret;
}
@@ -6572,6 +6641,55 @@ static int ext4_bh_unmapped(handle_t *handle, struct inode *inode,
return !buffer_mapped(bh);
}
+static int ext4_block_page_mkwrite(struct inode *inode, struct folio *folio,
+ get_block_t get_block)
+{
+ handle_t *handle;
+ loff_t size;
+ unsigned long len;
+ int credits;
+ int ret;
+
+ credits = ext4_chunk_trans_extent(inode,
+ ext4_journal_blocks_per_folio(inode));
+ handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE, credits);
+ if (IS_ERR(handle))
+ return PTR_ERR(handle);
+
+ folio_lock(folio);
+ size = i_size_read(inode);
+ /* Page got truncated from under us? */
+ if (folio->mapping != inode->i_mapping || folio_pos(folio) > size) {
+ ret = -EFAULT;
+ goto out_error;
+ }
+
+ len = folio_size(folio);
+ if (folio_pos(folio) + len > size)
+ len = size - folio_pos(folio);
+
+ ret = ext4_block_write_begin(handle, folio, 0, len, get_block);
+ if (ret)
+ goto out_error;
+
+ if (!ext4_should_journal_data(inode)) {
+ block_commit_write(folio, 0, len);
+ folio_mark_dirty(folio);
+ } else {
+ ret = ext4_journal_folio_buffers(handle, folio, len);
+ if (ret)
+ goto out_error;
+ }
+ ext4_journal_stop(handle);
+ folio_wait_stable(folio);
+ return ret;
+
+out_error:
+ folio_unlock(folio);
+ ext4_journal_stop(handle);
+ return ret;
+}
+
vm_fault_t ext4_page_mkwrite(struct vm_fault *vmf)
{
struct vm_area_struct *vma = vmf->vma;
@@ -6583,8 +6701,7 @@ vm_fault_t ext4_page_mkwrite(struct vm_fault *vmf)
struct file *file = vma->vm_file;
struct inode *inode = file_inode(file);
struct address_space *mapping = inode->i_mapping;
- handle_t *handle;
- get_block_t *get_block;
+ get_block_t *get_block = ext4_get_block;
int retries = 0;
if (unlikely(IS_IMMUTABLE(inode)))
@@ -6652,47 +6769,11 @@ vm_fault_t ext4_page_mkwrite(struct vm_fault *vmf)
/* OK, we need to fill the hole... */
if (ext4_should_dioread_nolock(inode))
get_block = ext4_get_block_unwritten;
- else
- get_block = ext4_get_block;
retry_alloc:
- handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE,
- ext4_writepage_trans_blocks(inode));
- if (IS_ERR(handle)) {
- ret = VM_FAULT_SIGBUS;
- goto out;
- }
- /*
- * Data journalling can't use block_page_mkwrite() because it
- * will set_buffer_dirty() before do_journal_get_write_access()
- * thus might hit warning messages for dirty metadata buffers.
- */
- if (!ext4_should_journal_data(inode)) {
- err = block_page_mkwrite(vma, vmf, get_block);
- } else {
- folio_lock(folio);
- size = i_size_read(inode);
- /* Page got truncated from under us? */
- if (folio->mapping != mapping || folio_pos(folio) > size) {
- ret = VM_FAULT_NOPAGE;
- goto out_error;
- }
-
- len = folio_size(folio);
- if (folio_pos(folio) + len > size)
- len = size - folio_pos(folio);
-
- err = ext4_block_write_begin(handle, folio, 0, len,
- ext4_get_block);
- if (!err) {
- ret = VM_FAULT_SIGBUS;
- if (ext4_journal_folio_buffers(handle, folio, len))
- goto out_error;
- } else {
- folio_unlock(folio);
- }
- }
- ext4_journal_stop(handle);
- if (err == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
+ /* Start journal and allocate blocks */
+ err = ext4_block_page_mkwrite(inode, folio, get_block);
+ if (err == -EAGAIN ||
+ (err == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)))
goto retry_alloc;
out_ret:
ret = vmf_fs_error(err);
@@ -6700,8 +6781,4 @@ out:
filemap_invalidate_unlock_shared(mapping);
sb_end_pagefault(inode->i_sb);
return ret;
-out_error:
- folio_unlock(folio);
- ext4_journal_stop(handle);
- goto out;
}
diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c
index 1f8493a56e8f..adae3caf175a 100644
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -280,7 +280,8 @@ move_extent_per_page(struct file *o_filp, struct inode *donor_inode,
*/
again:
*err = 0;
- jblocks = ext4_writepage_trans_blocks(orig_inode) * 2;
+ jblocks = ext4_meta_trans_blocks(orig_inode, block_len_in_page,
+ block_len_in_page) * 2;
handle = ext4_journal_start(orig_inode, EXT4_HT_MOVE_EXTENTS, jblocks);
if (IS_ERR(handle)) {
*err = PTR_ERR(handle);
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 8d15acbacc20..3fb93247330d 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -962,7 +962,7 @@ int __ext4_xattr_set_credits(struct super_block *sb, struct inode *inode,
* so we need to reserve credits for this eventuality
*/
if (inode && ext4_has_inline_data(inode))
- credits += ext4_writepage_trans_blocks(inode) + 1;
+ credits += ext4_chunk_trans_extent(inode, 1) + 1;
/* We are done if ea_inode feature is not enabled. */
if (!ext4_has_feature_ea_inode(sb))
generated by cgit v1.2.3 (git 2.39.0) at 2025-08-25 02:28:35 +0300