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| author | Jan Kara <jack@suse.cz> | 2017-06-13 16:08:52 +0200 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2017-06-14 11:21:01 +0200 |
| commit | 146c4ad6ec034a1fbfbf90ba76cb69b6504c374a (patch) | |
| tree | 8de22d1bbc50561db8994465ca48b1610c1eee3c /fs/udf/file.c | |
| parent | udf: Fix races with i_size changes during readpage (diff) | |
| download | linux-146c4ad6ec034a1fbfbf90ba76cb69b6504c374a.tar.xz linux-146c4ad6ec034a1fbfbf90ba76cb69b6504c374a.zip | |
udf: Use i_size_read() in udf_adinicb_writepage()
We don't hold inode_lock in udf_adinicb_writepage() so use i_size_read()
to get i_size. This cannot cause real problems is i_size is guaranteed
to be small but let's be careful.
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/udf/file.c')
| -rw-r--r-- | fs/udf/file.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/udf/file.c b/fs/udf/file.c index e06d2c15749a..356c2bf148a5 100644 --- a/fs/udf/file.c +++ b/fs/udf/file.c @@ -76,7 +76,8 @@ static int udf_adinicb_writepage(struct page *page, BUG_ON(!PageLocked(page)); kaddr = kmap_atomic(page); - memcpy(iinfo->i_ext.i_data + iinfo->i_lenEAttr, kaddr, inode->i_size); + memcpy(iinfo->i_ext.i_data + iinfo->i_lenEAttr, kaddr, + i_size_read(inode)); SetPageUptodate(page); kunmap_atomic(kaddr); mark_inode_dirty(inode); |