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f2fs: clean up f2fs_truncate_partial_cluster()

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Clean up codes as below:
- avoid unnecessary "err > 0" check condition
- use "1 << log_cluster_size" instead of F2FS_I(inode)->i_cluster_size

No logic changes.

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
2025-08-05 14:29:12 +08:00
committed by Jaegeuk Kim
parent 0b2cd50921
commit cbba5038ee
1 changed files with 22 additions and 26 deletions
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48
fs/f2fs/compress.c
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@@ -1215,9 +1215,11 @@ int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock)
{
void *fsdata = NULL;
struct page *pagep;
struct page **rpages;
int log_cluster_size = F2FS_I(inode)->i_log_cluster_size;
pgoff_t start_idx = from >> (PAGE_SHIFT + log_cluster_size) <<
log_cluster_size;
int i;
int err;
err = f2fs_is_compressed_cluster(inode, start_idx);
@@ -1238,36 +1240,30 @@ int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock)
if (err <= 0)
return err;
if (err > 0) {
struct page **rpages = fsdata;
int cluster_size = F2FS_I(inode)->i_cluster_size;
int i;
rpages = fsdata;
for (i = cluster_size - 1; i >= 0; i--) {
struct folio *folio = page_folio(rpages[i]);
loff_t start = (loff_t)folio->index << PAGE_SHIFT;
loff_t offset = from > start ? from - start : 0;
for (i = (1 << log_cluster_size) - 1; i >= 0; i--) {
struct folio *folio = page_folio(rpages[i]);
loff_t start = (loff_t)folio->index << PAGE_SHIFT;
loff_t offset = from > start ? from - start : 0;
folio_zero_segment(folio, offset, folio_size(folio));
folio_zero_segment(folio, offset, folio_size(folio));
if (from >= start)
break;
}
f2fs_compress_write_end(inode, fsdata, start_idx, true);
err = filemap_write_and_wait_range(inode->i_mapping,
round_down(from, cluster_size << PAGE_SHIFT),
LLONG_MAX);
if (err)
return err;
truncate_pagecache(inode, from);
err = f2fs_do_truncate_blocks(inode,
round_up(from, PAGE_SIZE), lock);
if (from >= start)
break;
}
return err;
f2fs_compress_write_end(inode, fsdata, start_idx, true);
err = filemap_write_and_wait_range(inode->i_mapping,
round_down(from, 1 << log_cluster_size << PAGE_SHIFT),
LLONG_MAX);
if (err)
return err;
truncate_pagecache(inode, from);
return f2fs_do_truncate_blocks(inode, round_up(from, PAGE_SIZE), lock);
}
static int f2fs_write_compressed_pages(struct compress_ctx *cc,