From: Tao Ma <boyu.mt@xxxxxxxxxx>
Signed-off-by: Tao Ma <boyu.mt@xxxxxxxxxx>
---
fs/ext4/inline.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
fs/ext4/namei.c | 8 +++++++
fs/ext4/xattr.h | 13 ++++++++++++
3 files changed, 76 insertions(+), 0 deletions(-)
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index f205d09..21c8957 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -1504,6 +1504,61 @@ out_find:
return iloc.bh;
}
+int ext4_delete_inline_entry(handle_t *handle,
+ struct inode *dir,
+ struct ext4_dir_entry_2 *de_del,
+ struct buffer_head *bh,
+ int *has_inline_data)
+{
+ int err, inline_size;
+ struct ext4_iloc iloc;
+ void *inline_start;
+
+ err = ext4_get_inode_loc(dir, &iloc);
+ if (err)
+ return err;
+
+ down_write(&EXT4_I(dir)->xattr_sem);
+ if (!ext4_has_inline_data(dir)) {
+ *has_inline_data = 0;
+ goto out;
+ }
+
+ if ((void *)de_del - ((void *)ext4_raw_inode(&iloc)->i_block) <
+ EXT4_MIN_INLINE_DATA_SIZE) {
+ inline_start = (void *)ext4_raw_inode(&iloc)->i_block +
+ EXT4_INLINE_DOTDOT_SIZE;
+ inline_size = EXT4_MIN_INLINE_DATA_SIZE -
+ EXT4_INLINE_DOTDOT_SIZE;
+ } else {
+ inline_start = ext4_get_inline_xattr_pos(dir, &iloc);
+ inline_size = ext4_get_inline_size(dir) -
+ EXT4_MIN_INLINE_DATA_SIZE;
+ }
+
+ err = ext4_journal_get_write_access(handle, bh);
+ if (err)
+ goto out;
+
+ err = ext4_generic_delete_entry(handle, dir, de_del, bh,
+ inline_start, inline_size, 0);
+ if (err)
+ goto out;
+
+ BUFFER_TRACE(bh, "call ext4_handle_dirty_metadata");
+ err = ext4_mark_inode_dirty(handle, dir);
+ if (unlikely(err))
+ goto out;
+
+ ext4_show_inline_dir(dir, iloc.bh, inline_start, inline_size);
+out:
+ up_write(&EXT4_I(dir)->xattr_sem);
+ brelse(iloc.bh);
+ if (err != -ENOENT)
+ ext4_std_error(dir->i_sb, err);
+ return err;
+}
+
int ext4_destroy_inline_data(handle_t *handle, struct inode *inode)
{
int ret;
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 7e35084..9d84aed 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2139,6 +2139,14 @@ static int ext4_delete_entry(handle_t *handle,
{
int err, csum_size = 0;
+ if (ext4_has_inline_data(dir)) {
+ int has_inline_data = 1;
+ err = ext4_delete_inline_entry(handle, dir, de_del, bh,
+ &has_inline_data);
+ if (has_inline_data)
+ return err;
+ }
+
if (EXT4_HAS_RO_COMPAT_FEATURE(dir->i_sb,
EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
csum_size = sizeof(struct ext4_dir_entry_tail);
diff --git a/fs/ext4/xattr.h b/fs/ext4/xattr.h
index 01ab0b7..62a242a 100644
--- a/fs/ext4/xattr.h
+++ b/fs/ext4/xattr.h
@@ -175,6 +175,11 @@ extern struct buffer_head *ext4_find_inline_entry(struct inode *dir,
const struct qstr *d_name,
struct ext4_dir_entry_2 **res_dir,
int *has_inline_data);
+extern int ext4_delete_inline_entry(handle_t *handle,
+ struct inode *dir,
+ struct ext4_dir_entry_2 *de_del,
+ struct buffer_head *bh,
+ int *has_inline_data);
# else /* CONFIG_EXT4_FS_XATTR */
static inline int
@@ -366,6 +371,14 @@ struct buffer_head *ext4_find_inline_entry(struct inode *dir,
{
return NULL;
}
+static inline int ext4_delete_inline_entry(handle_t *handle,
+ struct inode *dir,
+ struct ext4_dir_entry_2 *de_del,
+ struct buffer_head *bh,
+ int *has_inline_data)
+{
+ return 0;
+}
# endif /* CONFIG_EXT4_FS_XATTR */
#ifdef CONFIG_EXT4_FS_SECURITY
--
1.7.1
--
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