diff options
Diffstat (limited to 'fs/f2fs/file.c')
-rw-r--r-- | fs/f2fs/file.c | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 493457a200b1..58c9e3d8b8ec 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -1423,7 +1423,7 @@ static int expand_inode_data(struct inode *inode, loff_t offset, { struct f2fs_sb_info *sbi = F2FS_I_SB(inode); struct f2fs_map_blocks map = { .m_next_pgofs = NULL, - .m_seg_type = NO_CHECK_TYPE }; + .m_next_extent = NULL, .m_seg_type = NO_CHECK_TYPE }; pgoff_t pg_end; loff_t new_size = i_size_read(inode); loff_t off_end; @@ -2072,7 +2072,7 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi, { struct inode *inode = file_inode(filp); struct f2fs_map_blocks map = { .m_next_pgofs = NULL, - .m_seg_type = NO_CHECK_TYPE }; + .m_next_extent = NULL, .m_seg_type = NO_CHECK_TYPE }; struct extent_info ei = {0,0,0}; pgoff_t pg_start, pg_end; unsigned int blk_per_seg = sbi->blocks_per_seg; @@ -2749,6 +2749,43 @@ static int f2fs_ioc_get_pin_file(struct file *filp, unsigned long arg) return put_user(pin, (u32 __user *)arg); } +int f2fs_precache_extents(struct inode *inode) +{ + struct f2fs_inode_info *fi = F2FS_I(inode); + struct f2fs_map_blocks map; + pgoff_t m_next_extent; + loff_t end; + int err; + + if (is_inode_flag_set(inode, FI_NO_EXTENT)) + return -EOPNOTSUPP; + + map.m_lblk = 0; + map.m_next_pgofs = NULL; + map.m_next_extent = &m_next_extent; + map.m_seg_type = NO_CHECK_TYPE; + end = F2FS_I_SB(inode)->max_file_blocks; + + while (map.m_lblk < end) { + map.m_len = end - map.m_lblk; + + down_write(&fi->dio_rwsem[WRITE]); + err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_PRECACHE); + up_write(&fi->dio_rwsem[WRITE]); + if (err) + return err; + + map.m_lblk = m_next_extent; + } + + return err; +} + +static int f2fs_ioc_precache_extents(struct file *filp, unsigned long arg) +{ + return f2fs_precache_extents(file_inode(filp)); +} + long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp))))) @@ -2803,6 +2840,8 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return f2fs_ioc_get_pin_file(filp, arg); case F2FS_IOC_SET_PIN_FILE: return f2fs_ioc_set_pin_file(filp, arg); + case F2FS_IOC_PRECACHE_EXTENTS: + return f2fs_ioc_precache_extents(filp, arg); default: return -ENOTTY; } @@ -2880,6 +2919,7 @@ long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case F2FS_IOC_FSSETXATTR: case F2FS_IOC_GET_PIN_FILE: case F2FS_IOC_SET_PIN_FILE: + case F2FS_IOC_PRECACHE_EXTENTS: break; default: return -ENOIOCTLCMD; |