mirrors/scoutfs
1
0
Fork 0
mirror of https://github.com/versity/scoutfs.git synced 2026-07-27 02:23:08 +00:00
Code Issues Packages Projects Releases Wiki Activity

scoutfs: add lock coverage for stage ioctl

Browse Source 
Signed-off-by: Zach Brown <zab@versity.com>
This commit is contained in:
Zach Brown
2017-10-09 15:31:29 -07:00
committed by Mark Fasheh
parent aa70903154
commit 960bc4d53c
1 changed files with 12 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
kmod/src/ioctl.c
+12
View File
@@ -421,9 +421,12 @@ out:
static long scoutfs_ioc_stage(struct file *file, unsigned long arg)
{
struct inode *inode = file_inode(file);
struct super_block *sb = inode->i_sb;
struct address_space *mapping = inode->i_mapping;
struct scoutfs_inode_info *si = SCOUTFS_I(inode);
SCOUTFS_DECLARE_PER_TASK_ENTRY(pt_ent);
struct scoutfs_ioctl_stage args;
struct scoutfs_lock *lock = NULL;
struct kiocb kiocb;
struct iovec iov;
size_t written;
@@ -459,6 +462,13 @@ static long scoutfs_ioc_stage(struct file *file, unsigned long arg)
mutex_lock(&inode->i_mutex);
ret = scoutfs_lock_inode(sb, DLM_LOCK_EX, SCOUTFS_LKF_REFRESH_INODE,
inode, &lock);
if (ret)
goto out;
scoutfs_per_task_add(&si->pt_data_lock, &pt_ent, lock);
isize = i_size_read(inode);
if (!S_ISREG(inode->i_mode) ||
@@ -492,6 +502,8 @@ static long scoutfs_ioc_stage(struct file *file, unsigned long arg)
si->staging = false;
current->backing_dev_info = NULL;
out:
scoutfs_per_task_del(&si->pt_data_lock, &pt_ent);
scoutfs_unlock(sb, lock, DLM_LOCK_EX);
mutex_unlock(&inode->i_mutex);
mnt_drop_write_file(file);