some user behaviors requested filesystem operations, which
will cause filesystem not idle.
Meanwhile adjust f2fs_update_time(REQ_TIME) of
f2fs_ioc_defragment to successful case.
Signed-off-by: Zhiguo Niu <[email protected]>
---
fs/f2fs/file.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 4dfe38e..dac3836 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2784,7 +2784,6 @@ static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
err = f2fs_defragment_range(sbi, filp, &range);
mnt_drop_write_file(filp);
- f2fs_update_time(sbi, REQ_TIME);
if (err < 0)
return err;
@@ -2792,6 +2791,7 @@ static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
sizeof(range)))
return -EFAULT;
+ f2fs_update_time(sbi, REQ_TIME);
return 0;
}
@@ -3331,6 +3331,7 @@ static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg)
if (copy_from_user(&block_count, (void __user *)arg,
sizeof(block_count)))
return -EFAULT;
+ f2fs_update_time(sbi, REQ_TIME);
return f2fs_resize_fs(filp, block_count);
}
@@ -3424,6 +3425,7 @@ static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
f2fs_up_write(&sbi->sb_lock);
mnt_drop_write_file(filp);
+ f2fs_update_time(sbi, REQ_TIME);
out:
kfree(vbuf);
return err;
@@ -3597,6 +3599,7 @@ static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
filemap_invalidate_unlock(inode->i_mapping);
f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+ f2fs_update_time(sbi, REQ_TIME);
out:
inode_unlock(inode);
@@ -3766,6 +3769,7 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
clear_inode_flag(inode, FI_COMPRESS_RELEASED);
inode_set_ctime_current(inode);
f2fs_mark_inode_dirty_sync(inode, true);
+ f2fs_update_time(sbi, REQ_TIME);
}
unlock_inode:
inode_unlock(inode);
@@ -3964,6 +3968,7 @@ static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
if (len)
ret = f2fs_secure_erase(prev_bdev, inode, prev_index,
prev_block, len, range.flags);
+ f2fs_update_time(sbi, REQ_TIME);
out:
filemap_invalidate_unlock(mapping);
f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
@@ -4173,6 +4178,7 @@ static int f2fs_ioc_decompress_file(struct file *filp)
if (ret)
f2fs_warn(sbi, "%s: The file might be partially decompressed (errno=%d). Please delete the file.",
__func__, ret);
+ f2fs_update_time(sbi, REQ_TIME);
out:
inode_unlock(inode);
file_end_write(filp);
@@ -4252,6 +4258,7 @@ static int f2fs_ioc_compress_file(struct file *filp)
if (ret)
f2fs_warn(sbi, "%s: The file might be partially compressed (errno=%d). Please delete the file.",
__func__, ret);
+ f2fs_update_time(sbi, REQ_TIME);
out:
inode_unlock(inode);
file_end_write(filp);
--
1.9.1
On 2024/3/13 12:11, Zhiguo Niu wrote:
> some user behaviors requested filesystem operations, which
> will cause filesystem not idle.
> Meanwhile adjust f2fs_update_time(REQ_TIME) of
> f2fs_ioc_defragment to successful case.
>
> Signed-off-by: Zhiguo Niu <[email protected]>
> ---
> fs/f2fs/file.c | 9 ++++++++-
> 1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> index 4dfe38e..dac3836 100644
> --- a/fs/f2fs/file.c
> +++ b/fs/f2fs/file.c
> @@ -2784,7 +2784,6 @@ static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
> err = f2fs_defragment_range(sbi, filp, &range);
> mnt_drop_write_file(filp);
>
> - f2fs_update_time(sbi, REQ_TIME);
I guess we need to call f2fs_update_time() here if any data was
migrated.
if (range->len)
f2fs_update_time(sbi, REQ_TIME);
> if (err < 0)
> return err;
>
> @@ -2792,6 +2791,7 @@ static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
> sizeof(range)))
> return -EFAULT;
>
> + f2fs_update_time(sbi, REQ_TIME);
> return 0;
> }
>
> @@ -3331,6 +3331,7 @@ static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg)
> if (copy_from_user(&block_count, (void __user *)arg,
> sizeof(block_count)))
> return -EFAULT;
> + f2fs_update_time(sbi, REQ_TIME);
There will be no further IO in the end of f2fs_ioc_resize_fs(), so we don't
need to update time to delay gc/discard thread?
>
> return f2fs_resize_fs(filp, block_count);
> }
> @@ -3424,6 +3425,7 @@ static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
> f2fs_up_write(&sbi->sb_lock);
>
> mnt_drop_write_file(filp);
> + f2fs_update_time(sbi, REQ_TIME);
Ditto,
Thanks,
> out:
> kfree(vbuf);
> return err;
> @@ -3597,6 +3599,7 @@ static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
>
> filemap_invalidate_unlock(inode->i_mapping);
> f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
> + f2fs_update_time(sbi, REQ_TIME);
> out:
> inode_unlock(inode);
>
> @@ -3766,6 +3769,7 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
> clear_inode_flag(inode, FI_COMPRESS_RELEASED);
> inode_set_ctime_current(inode);
> f2fs_mark_inode_dirty_sync(inode, true);
> + f2fs_update_time(sbi, REQ_TIME);
> }
> unlock_inode:
> inode_unlock(inode);
> @@ -3964,6 +3968,7 @@ static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
> if (len)
> ret = f2fs_secure_erase(prev_bdev, inode, prev_index,
> prev_block, len, range.flags);
> + f2fs_update_time(sbi, REQ_TIME);
> out:
> filemap_invalidate_unlock(mapping);
> f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
> @@ -4173,6 +4178,7 @@ static int f2fs_ioc_decompress_file(struct file *filp)
> if (ret)
> f2fs_warn(sbi, "%s: The file might be partially decompressed (errno=%d). Please delete the file.",
> __func__, ret);
> + f2fs_update_time(sbi, REQ_TIME);
> out:
> inode_unlock(inode);
> file_end_write(filp);
> @@ -4252,6 +4258,7 @@ static int f2fs_ioc_compress_file(struct file *filp)
> if (ret)
> f2fs_warn(sbi, "%s: The file might be partially compressed (errno=%d). Please delete the file.",
> __func__, ret);
> + f2fs_update_time(sbi, REQ_TIME);
> out:
> inode_unlock(inode);
> file_end_write(filp);
On Thu, Mar 14, 2024 at 9:06 PM Chao Yu <[email protected]> wrote:
>
> On 2024/3/13 12:11, Zhiguo Niu wrote:
> > some user behaviors requested filesystem operations, which
> > will cause filesystem not idle.
> > Meanwhile adjust f2fs_update_time(REQ_TIME) of
> > f2fs_ioc_defragment to successful case.
> >
> > Signed-off-by: Zhiguo Niu <[email protected]>
> > ---
> > fs/f2fs/file.c | 9 ++++++++-
> > 1 file changed, 8 insertions(+), 1 deletion(-)
> >
> > diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> > index 4dfe38e..dac3836 100644
> > --- a/fs/f2fs/file.c
> > +++ b/fs/f2fs/file.c
> > @@ -2784,7 +2784,6 @@ static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
> > err = f2fs_defragment_range(sbi, filp, &range);
> > mnt_drop_write_file(filp);
> >
> > - f2fs_update_time(sbi, REQ_TIME);
>
> I guess we need to call f2fs_update_time() here if any data was
> migrated.
OK!
>
> if (range->len)
> f2fs_update_time(sbi, REQ_TIME);
>
> > if (err < 0)
> > return err;
> >
> > @@ -2792,6 +2791,7 @@ static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
> > sizeof(range)))
> > return -EFAULT;
> >
> > + f2fs_update_time(sbi, REQ_TIME);
> > return 0;
> > }
> >
> > @@ -3331,6 +3331,7 @@ static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg)
> > if (copy_from_user(&block_count, (void __user *)arg,
> > sizeof(block_count)))
> > return -EFAULT;
> > + f2fs_update_time(sbi, REQ_TIME);
>
> There will be no further IO in the end of f2fs_ioc_resize_fs(), so we don't
> need to update time to delay gc/discard thread?
>
> >
> > return f2fs_resize_fs(filp, block_count);
> > }
> > @@ -3424,6 +3425,7 @@ static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
> > f2fs_up_write(&sbi->sb_lock);
> >
> > mnt_drop_write_file(filp);
> > + f2fs_update_time(sbi, REQ_TIME);
>
> Ditto,
Dear Chao,
The two parts you proposed should be similar to the below scenario?
---------------------------------------------------------
static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
if (!f2fs_sb_has_encrypt(F2FS_I_SB(inode)))
return -EOPNOTSUPP;
f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
return fscrypt_ioctl_set_policy(filp, (const void __user *)arg);
}
-----------------------------------------------------------
thanks!
>
> Thanks,
>
> > out:
> > kfree(vbuf);
> > return err;
> > @@ -3597,6 +3599,7 @@ static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
> >
> > filemap_invalidate_unlock(inode->i_mapping);
> > f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
> > + f2fs_update_time(sbi, REQ_TIME);
> > out:
> > inode_unlock(inode);
> >
> > @@ -3766,6 +3769,7 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
> > clear_inode_flag(inode, FI_COMPRESS_RELEASED);
> > inode_set_ctime_current(inode);
> > f2fs_mark_inode_dirty_sync(inode, true);
> > + f2fs_update_time(sbi, REQ_TIME);
> > }
> > unlock_inode:
> > inode_unlock(inode);
> > @@ -3964,6 +3968,7 @@ static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
> > if (len)
> > ret = f2fs_secure_erase(prev_bdev, inode, prev_index,
> > prev_block, len, range.flags);
> > + f2fs_update_time(sbi, REQ_TIME);
> > out:
> > filemap_invalidate_unlock(mapping);
> > f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
> > @@ -4173,6 +4178,7 @@ static int f2fs_ioc_decompress_file(struct file *filp)
> > if (ret)
> > f2fs_warn(sbi, "%s: The file might be partially decompressed (errno=%d). Please delete the file.",
> > __func__, ret);
> > + f2fs_update_time(sbi, REQ_TIME);
> > out:
> > inode_unlock(inode);
> > file_end_write(filp);
> > @@ -4252,6 +4258,7 @@ static int f2fs_ioc_compress_file(struct file *filp)
> > if (ret)
> > f2fs_warn(sbi, "%s: The file might be partially compressed (errno=%d). Please delete the file.",
> > __func__, ret);
> > + f2fs_update_time(sbi, REQ_TIME);
> > out:
> > inode_unlock(inode);
> > file_end_write(filp);
On 2024/3/15 9:46, Zhiguo Niu wrote:
> On Thu, Mar 14, 2024 at 9:06 PM Chao Yu <[email protected]> wrote:
>>
>> On 2024/3/13 12:11, Zhiguo Niu wrote:
>>> some user behaviors requested filesystem operations, which
>>> will cause filesystem not idle.
>>> Meanwhile adjust f2fs_update_time(REQ_TIME) of
>>> f2fs_ioc_defragment to successful case.
>>>
>>> Signed-off-by: Zhiguo Niu <[email protected]>
>>> ---
>>> fs/f2fs/file.c | 9 ++++++++-
>>> 1 file changed, 8 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
>>> index 4dfe38e..dac3836 100644
>>> --- a/fs/f2fs/file.c
>>> +++ b/fs/f2fs/file.c
>>> @@ -2784,7 +2784,6 @@ static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
>>> err = f2fs_defragment_range(sbi, filp, &range);
>>> mnt_drop_write_file(filp);
>>>
>>> - f2fs_update_time(sbi, REQ_TIME);
>>
>> I guess we need to call f2fs_update_time() here if any data was
>> migrated.
> OK!
>>
>> if (range->len)
>> f2fs_update_time(sbi, REQ_TIME);
>>
>>> if (err < 0)
>>> return err;
>>>
>>> @@ -2792,6 +2791,7 @@ static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
>>> sizeof(range)))
>>> return -EFAULT;
>>>
>>> + f2fs_update_time(sbi, REQ_TIME);
>>> return 0;
>>> }
>>>
>>> @@ -3331,6 +3331,7 @@ static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg)
>>> if (copy_from_user(&block_count, (void __user *)arg,
>>> sizeof(block_count)))
>>> return -EFAULT;
>>> + f2fs_update_time(sbi, REQ_TIME);
>>
>> There will be no further IO in the end of f2fs_ioc_resize_fs(), so we don't
>> need to update time to delay gc/discard thread?
>>
>>>
>>> return f2fs_resize_fs(filp, block_count);
>>> }
>>> @@ -3424,6 +3425,7 @@ static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
>>> f2fs_up_write(&sbi->sb_lock);
>>>
>>> mnt_drop_write_file(filp);
>>> + f2fs_update_time(sbi, REQ_TIME);
>>
>> Ditto,
> Dear Chao,
>
> The two parts you proposed should be similar to the below scenario?
> ---------------------------------------------------------
> static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
> {
> struct inode *inode = file_inode(filp);
>
> if (!f2fs_sb_has_encrypt(F2FS_I_SB(inode)))
> return -EOPNOTSUPP;
>
> f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
>
> return fscrypt_ioctl_set_policy(filp, (const void __user *)arg);
fscrypt_ioctl_set_policy() will dirty inode, so we need to keep
f2fs_update_time(), but it's better to update time after
fscrypt_ioctl_set_policy()?
Thanks,
> }
> -----------------------------------------------------------
> thanks!
>
>
>>
>> Thanks,
>>
>>> out:
>>> kfree(vbuf);
>>> return err;
>>> @@ -3597,6 +3599,7 @@ static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
>>>
>>> filemap_invalidate_unlock(inode->i_mapping);
>>> f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
>>> + f2fs_update_time(sbi, REQ_TIME);
>>> out:
>>> inode_unlock(inode);
>>>
>>> @@ -3766,6 +3769,7 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
>>> clear_inode_flag(inode, FI_COMPRESS_RELEASED);
>>> inode_set_ctime_current(inode);
>>> f2fs_mark_inode_dirty_sync(inode, true);
>>> + f2fs_update_time(sbi, REQ_TIME);
>>> }
>>> unlock_inode:
>>> inode_unlock(inode);
>>> @@ -3964,6 +3968,7 @@ static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
>>> if (len)
>>> ret = f2fs_secure_erase(prev_bdev, inode, prev_index,
>>> prev_block, len, range.flags);
>>> + f2fs_update_time(sbi, REQ_TIME);
>>> out:
>>> filemap_invalidate_unlock(mapping);
>>> f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
>>> @@ -4173,6 +4178,7 @@ static int f2fs_ioc_decompress_file(struct file *filp)
>>> if (ret)
>>> f2fs_warn(sbi, "%s: The file might be partially decompressed (errno=%d). Please delete the file.",
>>> __func__, ret);
>>> + f2fs_update_time(sbi, REQ_TIME);
>>> out:
>>> inode_unlock(inode);
>>> file_end_write(filp);
>>> @@ -4252,6 +4258,7 @@ static int f2fs_ioc_compress_file(struct file *filp)
>>> if (ret)
>>> f2fs_warn(sbi, "%s: The file might be partially compressed (errno=%d). Please delete the file.",
>>> __func__, ret);
>>> + f2fs_update_time(sbi, REQ_TIME);
>>> out:
>>> inode_unlock(inode);
>>> file_end_write(filp);
On Fri, Mar 15, 2024 at 11:07 AM Chao Yu <[email protected]> wrote:
>
> On 2024/3/15 9:46, Zhiguo Niu wrote:
> > On Thu, Mar 14, 2024 at 9:06 PM Chao Yu <[email protected]> wrote:
> >>
> >> On 2024/3/13 12:11, Zhiguo Niu wrote:
> >>> some user behaviors requested filesystem operations, which
> >>> will cause filesystem not idle.
> >>> Meanwhile adjust f2fs_update_time(REQ_TIME) of
> >>> f2fs_ioc_defragment to successful case.
> >>>
> >>> Signed-off-by: Zhiguo Niu <[email protected]>
> >>> ---
> >>> fs/f2fs/file.c | 9 ++++++++-
> >>> 1 file changed, 8 insertions(+), 1 deletion(-)
> >>>
> >>> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> >>> index 4dfe38e..dac3836 100644
> >>> --- a/fs/f2fs/file.c
> >>> +++ b/fs/f2fs/file.c
> >>> @@ -2784,7 +2784,6 @@ static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
> >>> err = f2fs_defragment_range(sbi, filp, &range);
> >>> mnt_drop_write_file(filp);
> >>>
> >>> - f2fs_update_time(sbi, REQ_TIME);
> >>
> >> I guess we need to call f2fs_update_time() here if any data was
> >> migrated.
> > OK!
> >>
> >> if (range->len)
> >> f2fs_update_time(sbi, REQ_TIME);
> >>
> >>> if (err < 0)
> >>> return err;
> >>>
> >>> @@ -2792,6 +2791,7 @@ static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
> >>> sizeof(range)))
> >>> return -EFAULT;
> >>>
> >>> + f2fs_update_time(sbi, REQ_TIME);
> >>> return 0;
> >>> }
> >>>
> >>> @@ -3331,6 +3331,7 @@ static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg)
> >>> if (copy_from_user(&block_count, (void __user *)arg,
> >>> sizeof(block_count)))
> >>> return -EFAULT;
> >>> + f2fs_update_time(sbi, REQ_TIME);
> >>
> >> There will be no further IO in the end of f2fs_ioc_resize_fs(), so we don't
> >> need to update time to delay gc/discard thread?
> >>
> >>>
> >>> return f2fs_resize_fs(filp, block_count);
> >>> }
> >>> @@ -3424,6 +3425,7 @@ static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
> >>> f2fs_up_write(&sbi->sb_lock);
> >>>
> >>> mnt_drop_write_file(filp);
> >>> + f2fs_update_time(sbi, REQ_TIME);
> >>
> >> Ditto,
> > Dear Chao,
> >
> > The two parts you proposed should be similar to the below scenario?
> > ---------------------------------------------------------
> > static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
> > {
> > struct inode *inode = file_inode(filp);
> >
> > if (!f2fs_sb_has_encrypt(F2FS_I_SB(inode)))
> > return -EOPNOTSUPP;
> >
> > f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
> >
> > return fscrypt_ioctl_set_policy(filp, (const void __user *)arg);
>
> fscrypt_ioctl_set_policy() will dirty inode, so we need to keep
> f2fs_update_time(), but it's better to update time after
> fscrypt_ioctl_set_policy()?
>
> Thanks,
Dear Chao,
agree all your suggestions. thanks a lot.
>
> > }
> > -----------------------------------------------------------
> > thanks!
> >
> >
> >>
> >> Thanks,
> >>
> >>> out:
> >>> kfree(vbuf);
> >>> return err;
> >>> @@ -3597,6 +3599,7 @@ static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
> >>>
> >>> filemap_invalidate_unlock(inode->i_mapping);
> >>> f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
> >>> + f2fs_update_time(sbi, REQ_TIME);
> >>> out:
> >>> inode_unlock(inode);
> >>>
> >>> @@ -3766,6 +3769,7 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
> >>> clear_inode_flag(inode, FI_COMPRESS_RELEASED);
> >>> inode_set_ctime_current(inode);
> >>> f2fs_mark_inode_dirty_sync(inode, true);
> >>> + f2fs_update_time(sbi, REQ_TIME);
> >>> }
> >>> unlock_inode:
> >>> inode_unlock(inode);
> >>> @@ -3964,6 +3968,7 @@ static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
> >>> if (len)
> >>> ret = f2fs_secure_erase(prev_bdev, inode, prev_index,
> >>> prev_block, len, range.flags);
> >>> + f2fs_update_time(sbi, REQ_TIME);
> >>> out:
> >>> filemap_invalidate_unlock(mapping);
> >>> f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
> >>> @@ -4173,6 +4178,7 @@ static int f2fs_ioc_decompress_file(struct file *filp)
> >>> if (ret)
> >>> f2fs_warn(sbi, "%s: The file might be partially decompressed (errno=%d). Please delete the file.",
> >>> __func__, ret);
> >>> + f2fs_update_time(sbi, REQ_TIME);
> >>> out:
> >>> inode_unlock(inode);
> >>> file_end_write(filp);
> >>> @@ -4252,6 +4258,7 @@ static int f2fs_ioc_compress_file(struct file *filp)
> >>> if (ret)
> >>> f2fs_warn(sbi, "%s: The file might be partially compressed (errno=%d). Please delete the file.",
> >>> __func__, ret);
> >>> + f2fs_update_time(sbi, REQ_TIME);
> >>> out:
> >>> inode_unlock(inode);
> >>> file_end_write(filp);