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ext4: elevate write count for migrate ioctl

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The migrate ioctl writes to the filsystem, so we need to elevate the
write count.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Aneesh Kumar K.V
2008-09-13 12:52:26 -04:00
committed by Theodore Ts'o
parent 7ee1ec4ca3
commit 2a43a87800
3 changed files with 22 additions and 12 deletions
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10
fs/ext4/migrate.c
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@@ -447,8 +447,7 @@ static int free_ext_block(handle_t *handle, struct inode *inode)
}
int ext4_ext_migrate(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
int ext4_ext_migrate(struct inode *inode)
{
handle_t *handle;
int retval = 0, i;
@@ -515,12 +514,6 @@ int ext4_ext_migrate(struct inode *inode, struct file *filp,
* trascation that created the inode. Later as and
* when we add extents we extent the journal
*/
/*
* inode_mutex prevent write and truncate on the file. Read still goes
* through. We take i_data_sem in ext4_ext_swap_inode_data before we
* switch the inode format to prevent read.
*/
mutex_lock(&(inode->i_mutex));
/*
* Even though we take i_mutex we can still cause block allocation
* via mmap write to holes. If we have allocated new blocks we fail
@@ -623,7 +616,6 @@ err_out:
tmp_inode->i_nlink = 0;
ext4_journal_stop(handle);
mutex_unlock(&(inode->i_mutex));
if (tmp_inode)
iput(tmp_inode);