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ext4: use jbd2_inode dirty range scoping

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Use the newly introduced jbd2_inode dirty range scoping to prevent us
from waiting forever when trying to complete a journal transaction.

Signed-off-by: Ross Zwisler <zwisler@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: stable@vger.kernel.org
This commit is contained in:
Ross Zwisler 2019-06-20 17:26:26 -04:00 committed by Theodore Ts'o
parent 6ba0e7dc64
commit 73131fbb00
3 changed files with 18 additions and 10 deletions
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12
fs/ext4/ext4_jbd2.h
View File

@ -361,20 +361,20 @@ static inline int ext4_journal_force_commit(journal_t *journal)
}
static inline int ext4_jbd2_inode_add_write(handle_t *handle,
struct inode *inode)
struct inode *inode, loff_t start_byte, loff_t length)
{
if (ext4_handle_valid(handle))
return jbd2_journal_inode_add_write(handle,
EXT4_I(inode)->jinode);
return jbd2_journal_inode_ranged_write(handle,
EXT4_I(inode)->jinode, start_byte, length);
return 0;
}
static inline int ext4_jbd2_inode_add_wait(handle_t *handle,
struct inode *inode)
struct inode *inode, loff_t start_byte, loff_t length)
{
if (ext4_handle_valid(handle))
return jbd2_journal_inode_add_wait(handle,
EXT4_I(inode)->jinode);
return jbd2_journal_inode_ranged_wait(handle,
EXT4_I(inode)->jinode, start_byte, length);
return 0;
}

13
fs/ext4/inode.c
View File

@ -731,10 +731,16 @@ out_sem:
!(flags & EXT4_GET_BLOCKS_ZERO) &&
!ext4_is_quota_file(inode) &&
ext4_should_order_data(inode)) {
loff_t start_byte =
(loff_t)map->m_lblk << inode->i_blkbits;
loff_t length = (loff_t)map->m_len << inode->i_blkbits;
if (flags & EXT4_GET_BLOCKS_IO_SUBMIT)
ret = ext4_jbd2_inode_add_wait(handle, inode);
ret = ext4_jbd2_inode_add_wait(handle, inode,
start_byte, length);
else
ret = ext4_jbd2_inode_add_write(handle, inode);
ret = ext4_jbd2_inode_add_write(handle, inode,
start_byte, length);
if (ret)
return ret;
}
@ -4085,7 +4091,8 @@ static int __ext4_block_zero_page_range(handle_t *handle,
err = 0;
mark_buffer_dirty(bh);
if (ext4_should_order_data(inode))
err = ext4_jbd2_inode_add_write(handle, inode);
err = ext4_jbd2_inode_add_write(handle, inode, from,
length);
}
unlock:

3
fs/ext4/move_extent.c
View File

@ -390,7 +390,8 @@ data_copy:
/* Even in case of data=writeback it is reasonable to pin
* inode to transaction, to prevent unexpected data loss */
*err = ext4_jbd2_inode_add_write(handle, orig_inode);
*err = ext4_jbd2_inode_add_write(handle, orig_inode,
(loff_t)orig_page_offset << PAGE_SHIFT, replaced_size);
unlock_pages:
unlock_page(pagep[0]);