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Message-Id: <b469bd6ecbb015b02b7a89b4f8110cf2c09f4275.1726024116.git.bo.wu@vivo.com>
Date: Tue, 10 Sep 2024 21:57:20 -0600
From: Wu Bo <bo.wu@...o.com>
To: linux-kernel@...r.kernel.org
Cc: Jaegeuk Kim <jaegeuk@...nel.org>,
Chao Yu <chao@...nel.org>,
linux-f2fs-devel@...ts.sourceforge.net,
Wu Bo <wubo.oduw@...il.com>,
Wu Bo <bo.wu@...o.com>
Subject: [PATCH v2 07/13] f2fs: support seek for inline tail
Fix to support seek for inline tail files
Signed-off-by: Wu Bo <bo.wu@...o.com>
---
fs/f2fs/file.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 957d1ff55350..dda4cf6d7325 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -400,6 +400,7 @@ static bool __found_offset(struct address_space *mapping,
block_t blkaddr = f2fs_data_blkaddr(dn);
struct inode *inode = mapping->host;
bool compressed_cluster = false;
+ bool inline_tail = false;
if (f2fs_compressed_file(inode)) {
block_t first_blkaddr = data_blkaddr(dn->inode, dn->node_page,
@@ -408,6 +409,14 @@ static bool __found_offset(struct address_space *mapping,
compressed_cluster = first_blkaddr == COMPRESS_ADDR;
}
+ if (f2fs_has_inline_tail(inode)) {
+ loff_t isize = i_size_read(inode);
+ if ((isize >> PAGE_SHIFT == index) &&
+ (f2fs_exist_data(inode) ||
+ xa_get_mark(&mapping->i_pages, index, PAGECACHE_TAG_DIRTY)))
+ inline_tail = true;
+ }
+
switch (whence) {
case SEEK_DATA:
if (__is_valid_data_blkaddr(blkaddr))
@@ -417,11 +426,13 @@ static bool __found_offset(struct address_space *mapping,
return true;
if (compressed_cluster)
return true;
+ if (inline_tail)
+ return true;
break;
case SEEK_HOLE:
if (compressed_cluster)
return false;
- if (blkaddr == NULL_ADDR)
+ if (blkaddr == NULL_ADDR && !inline_tail)
return true;
break;
}
@@ -473,6 +484,8 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
}
end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
+ if (f2fs_has_inline_tail(inode))
+ end_offset = COMPACT_ADDRS_PER_INODE + 1;
/* find data/hole in dnode block */
for (; dn.ofs_in_node < end_offset;
@@ -496,6 +509,8 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
}
}
f2fs_put_dnode(&dn);
+ if (f2fs_has_inline_tail(inode) && dn.ofs_in_node == end_offset)
+ goto fail;
}
if (whence == SEEK_DATA)
--
2.35.3
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