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| author | Baokun Li <libaokun1@huawei.com> | 2025-08-22 10:11:26 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-28 16:31:07 +0200 |
| commit | 74482f0005faab41500776d16179b9dc573ce6d8 (patch) | |
| tree | bc6d4799b1d6b86081ead780487501445e68b0aa /drivers/cdx/controller/cdx_rpmsg.c | |
| parent | f02d8e200cb5eb16ae70d7f59088a292a247c7fc (diff) | |
ext4: preserve SB_I_VERSION on remount
[ Upstream commit f2326fd14a224e4cccbab89e14c52279ff79b7ec ]
IMA testing revealed that after an ext4 remount, file accesses triggered
full measurements even without modifications, instead of skipping as
expected when i_version is unchanged.
Debugging showed `SB_I_VERSION` was cleared in reconfigure_super() during
remount due to commit 1ff20307393e ("ext4: unconditionally enable the
i_version counter") removing the fix from commit 960e0ab63b2e ("ext4: fix
i_version handling on remount").
To rectify this, `SB_I_VERSION` is always set for `fc->sb_flags` in
ext4_init_fs_context(), instead of `sb->s_flags` in __ext4_fill_super(),
ensuring it persists across all mounts.
Cc: stable@kernel.org
Fixes: 1ff20307393e ("ext4: unconditionally enable the i_version counter")
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20250703073903.6952-2-libaokun@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
[ Adjust context ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/cdx/controller/cdx_rpmsg.c')
0 files changed, 0 insertions, 0 deletions