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f2fs: use err for f2fs_preallocate_blocks 

This patch has no functional change.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
zero-colors
Jaegeuk Kim 2016-11-11 16:31:56 -08:00
parent 3c62be17d4
commit a7de608691
3 changed files with 33 additions and 30 deletions
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26
fs/f2fs/data.c
View File

@ -658,11 +658,11 @@ alloc:
return 0;
}
ssize_t f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from)
int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from)
{
struct inode *inode = file_inode(iocb->ki_filp);
struct f2fs_map_blocks map;
ssize_t ret = 0;
int err = 0;
map.m_lblk = F2FS_BLK_ALIGN(iocb->ki_pos);
map.m_len = F2FS_BYTES_TO_BLK(iocb->ki_pos + iov_iter_count(from));
@ -674,19 +674,19 @@ ssize_t f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from)
map.m_next_pgofs = NULL;
if (iocb->ki_flags & IOCB_DIRECT) {
ret = f2fs_convert_inline_inode(inode);
if (ret)
return ret;
err = f2fs_convert_inline_inode(inode);
if (err)
return err;
return f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
}
if (iocb->ki_pos + iov_iter_count(from) > MAX_INLINE_DATA) {
ret = f2fs_convert_inline_inode(inode);
if (ret)
return ret;
err = f2fs_convert_inline_inode(inode);
if (err)
return err;
}
if (!f2fs_has_inline_data(inode))
return f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
return ret;
return err;
}
/*
@ -863,19 +863,19 @@ static int __get_data_block(struct inode *inode, sector_t iblock,
pgoff_t *next_pgofs)
{
struct f2fs_map_blocks map;
int ret;
int err;
map.m_lblk = iblock;
map.m_len = bh->b_size >> inode->i_blkbits;
map.m_next_pgofs = next_pgofs;
ret = f2fs_map_blocks(inode, &map, create, flag);
if (!ret) {
err = f2fs_map_blocks(inode, &map, create, flag);
if (!err) {
map_bh(bh, inode->i_sb, map.m_pblk);
bh->b_state = (bh->b_state & ~F2FS_MAP_FLAGS) | map.m_flags;
bh->b_size = map.m_len << inode->i_blkbits;
}
return ret;
return err;
}
static int get_data_block(struct inode *inode, sector_t iblock,

2
fs/f2fs/f2fs.h
View File

@ -2160,7 +2160,7 @@ void f2fs_update_data_blkaddr(struct dnode_of_data *, block_t);
int reserve_new_blocks(struct dnode_of_data *, blkcnt_t);
int reserve_new_block(struct dnode_of_data *);
int f2fs_get_block(struct dnode_of_data *, pgoff_t);
ssize_t f2fs_preallocate_blocks(struct kiocb *, struct iov_iter *);
int f2fs_preallocate_blocks(struct kiocb *, struct iov_iter *);
int f2fs_reserve_block(struct dnode_of_data *, pgoff_t);
struct page *get_read_data_page(struct inode *, pgoff_t, int, bool);
struct page *find_data_page(struct inode *, pgoff_t);

35
fs/f2fs/file.c
View File

@ -1320,15 +1320,15 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
pgoff_t pg_end;
loff_t new_size = i_size_read(inode);
loff_t off_end;
int ret;
int err;
ret = inode_newsize_ok(inode, (len + offset));
if (ret)
return ret;
err = inode_newsize_ok(inode, (len + offset));
if (err)
return err;
ret = f2fs_convert_inline_inode(inode);
if (ret)
return ret;
err = f2fs_convert_inline_inode(inode);
if (err)
return err;
f2fs_balance_fs(sbi, true);
@ -1340,12 +1340,12 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
if (off_end)
map.m_len++;
ret = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
if (ret) {
err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
if (err) {
pgoff_t last_off;
if (!map.m_len)
return ret;
return err;
last_off = map.m_lblk + map.m_len - 1;
@ -1359,7 +1359,7 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
if (!(mode & FALLOC_FL_KEEP_SIZE) && i_size_read(inode) < new_size)
f2fs_i_size_write(inode, new_size);
return ret;
return err;
}
static long f2fs_fallocate(struct file *file, int mode,
@ -2263,12 +2263,15 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
inode_lock(inode);
ret = generic_write_checks(iocb, from);
if (ret > 0) {
ret = f2fs_preallocate_blocks(iocb, from);
if (!ret) {
blk_start_plug(&plug);
ret = __generic_file_write_iter(iocb, from);
blk_finish_plug(&plug);
int err = f2fs_preallocate_blocks(iocb, from);
if (err) {
inode_unlock(inode);
return err;
}
blk_start_plug(&plug);
ret = __generic_file_write_iter(iocb, from);
blk_finish_plug(&plug);
}
inode_unlock(inode);