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-rw-r--r--fs/ext4/inode.c79
1 files changed, 62 insertions, 17 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 88d57af1b516..f622d4a577e3 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1189,6 +1189,9 @@ static int ext4_write_begin(struct file *file, struct address_space *mapping,
pgoff_t index;
unsigned from, to;
+ if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb))))
+ return -EIO;
+
trace_ext4_write_begin(inode, pos, len, flags);
/*
* Reserve one block more for addition to orphan list in case
@@ -1330,8 +1333,11 @@ static int ext4_write_end(struct file *file,
if (ext4_has_inline_data(inode)) {
ret = ext4_write_inline_data_end(inode, pos, len,
copied, page);
- if (ret < 0)
+ if (ret < 0) {
+ unlock_page(page);
+ put_page(page);
goto errout;
+ }
copied = ret;
} else
copied = block_write_end(file, mapping, pos,
@@ -1385,7 +1391,9 @@ errout:
* set the buffer to be dirty, since in data=journalled mode we need
* to call ext4_handle_dirty_metadata() instead.
*/
-static void zero_new_buffers(struct page *page, unsigned from, unsigned to)
+static void ext4_journalled_zero_new_buffers(handle_t *handle,
+ struct page *page,
+ unsigned from, unsigned to)
{
unsigned int block_start = 0, block_end;
struct buffer_head *head, *bh;
@@ -1402,7 +1410,7 @@ static void zero_new_buffers(struct page *page, unsigned from, unsigned to)
size = min(to, block_end) - start;
zero_user(page, start, size);
- set_buffer_uptodate(bh);
+ write_end_fn(handle, bh);
}
clear_buffer_new(bh);
}
@@ -1431,18 +1439,25 @@ static int ext4_journalled_write_end(struct file *file,
BUG_ON(!ext4_handle_valid(handle));
- if (ext4_has_inline_data(inode))
- copied = ext4_write_inline_data_end(inode, pos, len,
- copied, page);
- else {
- if (copied < len) {
- if (!PageUptodate(page))
- copied = 0;
- zero_new_buffers(page, from+copied, to);
+ if (ext4_has_inline_data(inode)) {
+ ret = ext4_write_inline_data_end(inode, pos, len,
+ copied, page);
+ if (ret < 0) {
+ unlock_page(page);
+ put_page(page);
+ goto errout;
}
-
+ copied = ret;
+ } else if (unlikely(copied < len) && !PageUptodate(page)) {
+ copied = 0;
+ ext4_journalled_zero_new_buffers(handle, page, from, to);
+ } else {
+ if (unlikely(copied < len))
+ ext4_journalled_zero_new_buffers(handle, page,
+ from + copied, to);
ret = ext4_walk_page_buffers(handle, page_buffers(page), from,
- to, &partial, write_end_fn);
+ from + copied, &partial,
+ write_end_fn);
if (!partial)
SetPageUptodate(page);
}
@@ -1468,6 +1483,7 @@ static int ext4_journalled_write_end(struct file *file,
*/
ext4_orphan_add(handle, inode);
+errout:
ret2 = ext4_journal_stop(handle);
if (!ret)
ret = ret2;
@@ -2034,6 +2050,12 @@ static int ext4_writepage(struct page *page,
struct ext4_io_submit io_submit;
bool keep_towrite = false;
+ if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) {
+ ext4_invalidatepage(page, 0, PAGE_SIZE);
+ unlock_page(page);
+ return -EIO;
+ }
+
trace_ext4_writepage(page);
size = i_size_read(inode);
if (page->index == size >> PAGE_SHIFT)
@@ -2409,7 +2431,8 @@ static int mpage_map_and_submit_extent(handle_t *handle,
if (err < 0) {
struct super_block *sb = inode->i_sb;
- if (EXT4_SB(sb)->s_mount_flags & EXT4_MF_FS_ABORTED)
+ if (ext4_forced_shutdown(EXT4_SB(sb)) ||
+ EXT4_SB(sb)->s_mount_flags & EXT4_MF_FS_ABORTED)
goto invalidate_dirty_pages;
/*
* Let the uper layers retry transient errors.
@@ -2464,8 +2487,8 @@ update_disksize:
disksize = i_size;
if (disksize > EXT4_I(inode)->i_disksize)
EXT4_I(inode)->i_disksize = disksize;
- err2 = ext4_mark_inode_dirty(handle, inode);
up_write(&EXT4_I(inode)->i_data_sem);
+ err2 = ext4_mark_inode_dirty(handle, inode);
if (err2)
ext4_error(inode->i_sb,
"Failed to mark inode %lu dirty",
@@ -2631,6 +2654,9 @@ static int ext4_writepages(struct address_space *mapping,
struct blk_plug plug;
bool give_up_on_write = false;
+ if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb))))
+ return -EIO;
+
percpu_down_read(&sbi->s_journal_flag_rwsem);
trace_ext4_writepages(inode, wbc);
@@ -2667,7 +2693,8 @@ static int ext4_writepages(struct address_space *mapping,
* *never* be called, so if that ever happens, we would want
* the stack trace.
*/
- if (unlikely(sbi->s_mount_flags & EXT4_MF_FS_ABORTED)) {
+ if (unlikely(ext4_forced_shutdown(EXT4_SB(mapping->host->i_sb)) ||
+ sbi->s_mount_flags & EXT4_MF_FS_ABORTED)) {
ret = -EROFS;
goto out_writepages;
}
@@ -2892,6 +2919,9 @@ static int ext4_da_write_begin(struct file *file, struct address_space *mapping,
struct inode *inode = mapping->host;
handle_t *handle;
+ if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb))))
+ return -EIO;
+
index = pos >> PAGE_SHIFT;
if (ext4_nonda_switch(inode->i_sb) ||
@@ -3914,6 +3944,10 @@ static int ext4_block_truncate_page(handle_t *handle,
unsigned blocksize;
struct inode *inode = mapping->host;
+ /* If we are processing an encrypted inode during orphan list handling */
+ if (ext4_encrypted_inode(inode) && !fscrypt_has_encryption_key(inode))
+ return 0;
+
blocksize = inode->i_sb->s_blocksize;
length = blocksize - (offset & (blocksize - 1));
@@ -4222,7 +4256,9 @@ int ext4_truncate(struct inode *inode)
if (ext4_has_inline_data(inode)) {
int has_inline = 1;
- ext4_inline_data_truncate(inode, &has_inline);
+ err = ext4_inline_data_truncate(inode, &has_inline);
+ if (err)
+ return err;
if (has_inline)
return 0;
}
@@ -5197,6 +5233,9 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
int orphan = 0;
const unsigned int ia_valid = attr->ia_valid;
+ if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb))))
+ return -EIO;
+
error = setattr_prepare(dentry, attr);
if (error)
return error;
@@ -5483,6 +5522,9 @@ int ext4_mark_iloc_dirty(handle_t *handle,
{
int err = 0;
+ if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb))))
+ return -EIO;
+
if (IS_I_VERSION(inode))
inode_inc_iversion(inode);
@@ -5506,6 +5548,9 @@ ext4_reserve_inode_write(handle_t *handle, struct inode *inode,
{
int err;
+ if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb))))
+ return -EIO;
+
err = ext4_get_inode_loc(inode, iloc);
if (!err) {
BUFFER_TRACE(iloc->bh, "get_write_access");
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-06 15:41:40 +0100