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authorAlessio Igor Bogani <abogani@texware.it>2010-11-16 18:40:47 +0100
committerJan Kara <jack@suse.cz>2011-01-06 17:03:56 +0100
commit4d0fb621d35007c19a396f2bb629e5aeaacef2d0 (patch)
tree92f6e0d3c38c15b0af507bd4b6d3353e34a337a9 /fs/udf/file.c
parentd1668fe390c1e84580575965684a8fa7e4626dee (diff)
downloadop-kernel-dev-4d0fb621d35007c19a396f2bb629e5aeaacef2d0.zip
op-kernel-dev-4d0fb621d35007c19a396f2bb629e5aeaacef2d0.tar.gz
udf: Replace bkl with the UDF_I(inode)->i_data_sem for protect udf_inode_info struct
Replace bkl with the UDF_I(inode)->i_data_sem rw semaphore in udf_release_file(), udf_symlink(), udf_symlink_filler(), udf_get_block(), udf_block_map(), and udf_setattr(). The rule now is that any operation on regular file's or symlink's extents (or generally allocation information including goal block) needs to hold i_data_sem. This work was supported by a hardware donation from the CE Linux Forum. Signed-off-by: Alessio Igor Bogani <abogani@texware.it> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/udf/file.c')
-rw-r--r--fs/udf/file.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/udf/file.c b/fs/udf/file.c
index 66b9e7e..df0c556 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -204,10 +204,10 @@ static int udf_release_file(struct inode *inode, struct file *filp)
{
if (filp->f_mode & FMODE_WRITE) {
mutex_lock(&inode->i_mutex);
- lock_kernel();
+ down_write(&UDF_I(inode)->i_data_sem);
udf_discard_prealloc(inode);
udf_truncate_tail_extent(inode);
- unlock_kernel();
+ up_write(&UDF_I(inode)->i_data_sem);
mutex_unlock(&inode->i_mutex);
}
return 0;
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