mirror_zfs/module
Tom Caputi 3ce85b5e60 Fix integer overflow of ZTOI(zp)->i_generation
The ZFS on-disk format stores each inode's generation ID as a 64
bit number on disk and in-core. However, the Linux kernel's inode
is only a 32 bit number. In most places, the code handles this
correctly, but the cast is missing in zfs_rezget(). For many pools,
this isn't an issue since the generation ID is computed as the
current txg when the inode is created and many pools don't have
more than 2^32 txgs.

For the pools that have more txgs, this issue causes any inode with
a high enough generation number to report IO errors after a call to
"zfs rollback" while holding the file or directory open. This patch
simply adds the missing cast.

Reviewed-by: Alek Pinchuk <apinchuk@datto.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #8858
2019-06-06 12:59:39 -07:00
..
avl Update build system and packaging 2018-05-29 16:00:33 -07:00
icp Restructure vec_idx loops 2019-04-16 12:34:06 -07:00
lua Update build system and packaging 2018-05-29 16:00:33 -07:00
nvpair Use NV_ENCODE_NATIVE for nvlist encoding variable 2019-04-26 11:24:31 -07:00
spl Remove vn_set_fs_pwd()/vn_set_pwd() (no need to be at / during insmod) 2019-05-29 16:18:14 -07:00
unicode Update build system and packaging 2018-05-29 16:00:33 -07:00
zcommon Add TRIM support 2019-03-29 09:13:20 -07:00
zfs Fix integer overflow of ZTOI(zp)->i_generation 2019-06-06 12:59:39 -07:00
.gitignore Prepare SPL repo to merge with ZFS repo 2018-05-29 14:51:39 -07:00
Makefile.in Linux 5.0 compat: Fix SUBDIRs 2019-01-28 10:11:45 -08:00