[2.2] Linux 6.7 compat #15694
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[2.2] Linux 6.7 compat #15694
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6.7 changed the names of the time members in struct inode, so we can't assign back to it because we don't know its name. In practice this doesn't matter though - if we're missing current_time(), then we must be on <4.9, and we know our fallback will need to return timespec. Signed-off-by: Rob Norris <robn@despairlabs.com> Sponsored-by: https://github.com/sponsors/robn
6.6 made i_ctime inaccessible; 6.7 has done the same for i_atime and i_mtime. This extends the method used for ctime in b37f293 to atime and mtime as well. Signed-off-by: Rob Norris <robn@despairlabs.com> Sponsored-by: https://github.com/sponsors/robn
In 6.7 the superblock shrinker member s_shrink has changed from being an embedded struct to a pointer. Detect this, and don't take a reference if it already is one. Signed-off-by: Rob Norris <robn@despairlabs.com> Sponsored-by: https://github.com/sponsors/robn
6.7 changes the shrinker API such that shrinkers must be allocated dynamically by the kernel. To accomodate this, this commit reworks spl_register_shrinker() to do something similar against earlier kernels. Signed-off-by: Rob Norris <robn@despairlabs.com> Sponsored-by: https://github.com/sponsors/robn
behlendorf
approved these changes
Dec 21, 2023
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Motivation and Context
Backport #15681 to 2.2.
Upcoming Linux 6.7 release will change a couple of interfaces. Adapt or die!
Description
Adjusts for three changes:
i_atimeandi_mtimeinstruct inodeare no longer directly accessible, but must use accessor functionss_shrinkinstruct super_blockis now a pointer rather than an embedded structHow Has This Been Tested?
This version compiled checked against 6.7-rc6 and 5.10.170. Assuming its fine elsewhere based on testing in #15681.
Types of changes
Checklist:
Signed-off-by.