btrfs: sanitize BTRFS_IOC_FILE_EXTENT_SAME

Browse source

* don't assume that ->dest_count won't change between copy_from_user()
and memdup_user()
* use fdget instead of fget
* don't bother comparing superblocks when we'd already compared vfsmounts
* get rid of excessive goto
* use file_inode() instead of open-coding the sucker

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

...

This commit is contained in:

Al Viro 2013-12-11 23:07:51 -05:00

parent 208adb6403

commit 1c1c8747cd

1 changed files with 24 additions and 46 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

70

fs/btrfs/ioctl.c

View file