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Diffstat (limited to 'fs/ext4/inode.c')
-rw-r--r--fs/ext4/inode.c46
1 files changed, 25 insertions, 21 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 09014c3c4207..bd6453e78992 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4246,28 +4246,28 @@ int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length)
EXT4_BLOCK_SIZE_BITS(sb);
stop_block = (offset + length) >> EXT4_BLOCK_SIZE_BITS(sb);
- /* If there are no blocks to remove, return now */
- if (first_block >= stop_block)
- goto out_stop;
+ /* If there are blocks to remove, do it */
+ if (stop_block > first_block) {
- down_write(&EXT4_I(inode)->i_data_sem);
- ext4_discard_preallocations(inode);
+ down_write(&EXT4_I(inode)->i_data_sem);
+ ext4_discard_preallocations(inode);
- ret = ext4_es_remove_extent(inode, first_block,
- stop_block - first_block);
- if (ret) {
- up_write(&EXT4_I(inode)->i_data_sem);
- goto out_stop;
- }
+ ret = ext4_es_remove_extent(inode, first_block,
+ stop_block - first_block);
+ if (ret) {
+ up_write(&EXT4_I(inode)->i_data_sem);
+ goto out_stop;
+ }
- if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))
- ret = ext4_ext_remove_space(inode, first_block,
- stop_block - 1);
- else
- ret = ext4_ind_remove_space(handle, inode, first_block,
- stop_block);
+ if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))
+ ret = ext4_ext_remove_space(inode, first_block,
+ stop_block - 1);
+ else
+ ret = ext4_ind_remove_space(handle, inode, first_block,
+ stop_block);
- up_write(&EXT4_I(inode)->i_data_sem);
+ up_write(&EXT4_I(inode)->i_data_sem);
+ }
if (IS_SYNC(inode))
ext4_handle_sync(handle);
@@ -4634,19 +4634,21 @@ static blkcnt_t ext4_inode_blocks(struct ext4_inode *raw_inode,
}
}
-static inline void ext4_iget_extra_inode(struct inode *inode,
+static inline int ext4_iget_extra_inode(struct inode *inode,
struct ext4_inode *raw_inode,
struct ext4_inode_info *ei)
{
__le32 *magic = (void *)raw_inode +
EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize;
+
if (EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize + sizeof(__le32) <=
EXT4_INODE_SIZE(inode->i_sb) &&
*magic == cpu_to_le32(EXT4_XATTR_MAGIC)) {
ext4_set_inode_state(inode, EXT4_STATE_XATTR);
- ext4_find_inline_data_nolock(inode);
+ return ext4_find_inline_data_nolock(inode);
} else
EXT4_I(inode)->i_inline_off = 0;
+ return 0;
}
int ext4_get_projid(struct inode *inode, kprojid_t *projid)
@@ -4826,7 +4828,9 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
ei->i_extra_isize = sizeof(struct ext4_inode) -
EXT4_GOOD_OLD_INODE_SIZE;
} else {
- ext4_iget_extra_inode(inode, raw_inode, ei);
+ ret = ext4_iget_extra_inode(inode, raw_inode, ei);
+ if (ret)
+ goto bad_inode;
}
}