mirrors/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2025-11-04 02:30:34 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

dax: remove the last BUG_ON() from fs/dax.c

Browse source 
Don't take down the kernel if we get an invalid 'from' and 'length'
argument pair.  Just warn once and return an error.

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Ross Zwisler 2016-11-08 11:32:00 +11:00 committed by Dave Chinner
parent ce95ab0fa6
commit aada54f980
1 changed files with 2 additions and 1 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

3
fs/dax.c
View file

@ -1194,7 +1194,8 @@ int dax_zero_page_range(struct inode *inode, loff_t from, unsigned length,
/* Block boundary? Nothing to do */ /* Block boundary? Nothing to do */
if (!length) if (!length)
return 0; return 0;
BUG_ON((offset + length) > PAGE_SIZE); if (WARN_ON_ONCE((offset + length) > PAGE_SIZE))
return -EINVAL;
memset(&bh, 0, sizeof(bh)); memset(&bh, 0, sizeof(bh));
bh.b_bdev = inode->i_sb->s_bdev; bh.b_bdev = inode->i_sb->s_bdev;