f2fs: unset atomic/volatile flag in f2fs_release_file

The atomic/volatile operation should be done in pair of start and commit
ioctl.
For example, if a killed process remains open-ended atomic operation, we should
drop its flag as well as its atomic data. Otherwise, if sqlite initiates another
operation which doesn't require atomic writes, it will lose every data, since
f2fs still treats with them as atomic writes; nobody will trigger its commit.

Reported-by: Miao Xie <miaoxie@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2016-04-11 13:15:10 -07:00
parent de5307e46d
commit 26dc3d4424
2 changed files with 4 additions and 3 deletions

View File

@ -1266,6 +1266,7 @@ static int f2fs_release_file(struct inode *inode, struct file *filp)
if (f2fs_is_atomic_file(inode))
drop_inmem_pages(inode);
if (f2fs_is_volatile_file(inode)) {
clear_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
set_inode_flag(F2FS_I(inode), FI_DROP_CACHE);
filemap_fdatawrite(inode->i_mapping);
clear_inode_flag(F2FS_I(inode), FI_DROP_CACHE);
@ -1449,10 +1450,8 @@ static int f2fs_ioc_abort_volatile_write(struct file *filp)
if (ret)
return ret;
if (f2fs_is_atomic_file(inode)) {
clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
if (f2fs_is_atomic_file(inode))
drop_inmem_pages(inode);
}
if (f2fs_is_volatile_file(inode)) {
clear_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
ret = f2fs_sync_file(filp, 0, LLONG_MAX, 0);

View File

@ -239,6 +239,8 @@ void drop_inmem_pages(struct inode *inode)
{
struct f2fs_inode_info *fi = F2FS_I(inode);
clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
mutex_lock(&fi->inmem_lock);
__revoke_inmem_pages(inode, &fi->inmem_pages, true, false);
mutex_unlock(&fi->inmem_lock);