aboutsummaryrefslogtreecommitdiff
path: root/fs/udf/file.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/udf/file.c')
-rw-r--r--fs/udf/file.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/fs/udf/file.c b/fs/udf/file.c
index 66b9e7e7e4c..89c78486cbb 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -32,7 +32,6 @@
#include <linux/string.h> /* memset */
#include <linux/capability.h>
#include <linux/errno.h>
-#include <linux/smp_lock.h>
#include <linux/pagemap.h>
#include <linux/buffer_head.h>
#include <linux/aio.h>
@@ -114,6 +113,7 @@ static ssize_t udf_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
size_t count = iocb->ki_left;
struct udf_inode_info *iinfo = UDF_I(inode);
+ down_write(&iinfo->i_data_sem);
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
if (file->f_flags & O_APPEND)
pos = inode->i_size;
@@ -126,6 +126,7 @@ static ssize_t udf_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
udf_expand_file_adinicb(inode, pos + count, &err);
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
udf_debug("udf_expand_adinicb: err=%d\n", err);
+ up_write(&iinfo->i_data_sem);
return err;
}
} else {
@@ -135,6 +136,7 @@ static ssize_t udf_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
iinfo->i_lenAlloc = inode->i_size;
}
}
+ up_write(&iinfo->i_data_sem);
retval = generic_file_aio_write(iocb, iov, nr_segs, ppos);
if (retval > 0)
@@ -149,8 +151,6 @@ long udf_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
long old_block, new_block;
int result = -EINVAL;
- lock_kernel();
-
if (file_permission(filp, MAY_READ) != 0) {
udf_debug("no permission to access inode %lu\n", inode->i_ino);
result = -EPERM;
@@ -196,7 +196,6 @@ long udf_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
}
out:
- unlock_kernel();
return result;
}
@@ -204,10 +203,10 @@ 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;