diff options
Diffstat (limited to 'fs/f2fs/file.c')
| -rw-r--r-- | fs/f2fs/file.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 3708b80125d0..8e68bb64f835 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -885,6 +885,9 @@ static int f2fs_ioc_commit_atomic_write(struct file *filp) if (!inode_owner_or_capable(inode)) return -EACCES; + if (f2fs_is_volatile_file(inode)) + return 0; + ret = mnt_want_write_file(filp); if (ret) return ret; @@ -897,6 +900,17 @@ static int f2fs_ioc_commit_atomic_write(struct file *filp) return ret; } +static int f2fs_ioc_start_volatile_write(struct file *filp) +{ + struct inode *inode = file_inode(filp); + + if (!inode_owner_or_capable(inode)) + return -EACCES; + + set_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE); + return 0; +} + static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg) { struct inode *inode = file_inode(filp); @@ -938,6 +952,8 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return f2fs_ioc_start_atomic_write(filp); case F2FS_IOC_COMMIT_ATOMIC_WRITE: return f2fs_ioc_commit_atomic_write(filp); + case F2FS_IOC_START_VOLATILE_WRITE: + return f2fs_ioc_start_volatile_write(filp); case FITRIM: return f2fs_ioc_fitrim(filp, arg); default: |