In el10, we don't need compat for list_lru_walk, as was intended
in 8b6418fb. However, the actual redefine from kc_list_lru_walk to
list_lru_walk was omitted. It wasn't needed until el10. Add it now.
Signed-off-by: Auke Kok <auke.kok@versity.com>
Since v5.1-rc3-29-gaa30f47cf666, and in el9, there are changes to reduce
the amount of boilerplate code needed to hook up lots of attribute files
using a .default_groups member. In el10, this is the required method as
.default_attrs has been removed. This touches every sysfs part that we
have.
Signed-off-by: Auke Kok <auke.kok@versity.com>
Since ~v6.5-rc1-95-g0d72b92883c6, generic_fillattr() asks us to pass
through the request_mask from the caller. This allows it to only
request a subset.
Signed-off-by: Auke Kok <auke.kok@versity.com>
Yet another major shrinker API evolution in v6.6-rc4-53-gc42d50aefd17.
The struct shrinker now has to be dynamically allocated. This is
purposely a backwards incompatible break.
Collapse the previous KC_ALLOC_SHRINKER, KC_INIT_SHRINKER_FUNCS,
and KC_REGISTER_SHRINKER macros into a single KC_SETUP_SHRINKER
macro. The three operations have to happen in different orders on
different kernel APIs (the name is needed at alloc time on el10
and at register time on KC_SHRINKER_NAME kernels), so coupling
them keeps the ordering correct per kernel.
Add KC_SHRINKER_IS_NULL so callers can detect shrinker_alloc()
failure on el10 and return -ENOMEM. The macro compiles to a
constant 0 on older kernels where the shrinker is an embedded
struct that cannot fail allocation.
Signed-off-by: Auke Kok <auke.kok@versity.com>
In v6.8-9146-gc759e609030c, the second argument for __assign_str() was
removed, as the second parameter is already derived from the __string()
definition and no longer needed. We have to do a little digging in
headers here to find the definition.
Note the missing `;` at a few places... it has to be added now.
Signed-off-by: Auke Kok <auke.kok@versity.com>
v6.9-rc4-29-g203c1ce0bb06 removes bd_inode. The canonical replacement is
bd_mapping->host, where applicable. We have one use where we directly
need the mapping instead of the inode, as well.
Signed-off-by: Auke Kok <auke.kok@versity.com>
In v6.6-rc5-1-g077c212f0344, one can no longer directly access the
inode m_time and a_time etc. We have to go through these static inline
functions to get to them.
Further back, ctime accessors were added in v6.5-rc1-7-g9b6304c1d537,
and need to be applied as well.
Signed-off-by: Auke Kok <auke.kok@versity.com>
In v6.1-rc5-2-ge9a688bcb193, get_random_u32_below() becomes available and
can start replacing prandom_bytes_max(). Switch to it where we can.
get_random_bytes() has been available since el7, so also replace
prandom_bytes() where we're using it.
Signed-off-by: Auke Kok <auke.kok@versity.com>
el8 already provides stack_trace_save() and stack_trace_print()
in linux/stacktrace.h, so the legacy save_stack_trace/print_stack_trace
fallback inlines are dead. Drop the detection stanza and the inlines.
Signed-off-by: Auke Kok <auke.kok@versity.com>
el8 already provides vm_fault_t and vmf_error(), so the fallback
typedef and inline are dead. Drop the detection stanza and the
two function-signature ifdefs in data.c that switched between the
pre-v4.11 and modern fault handler prototypes.
Signed-off-by: Auke Kok <auke.kok@versity.com>
We still need to keep KC_GENERIC_PERFORM_WRITE_KIOCB_IOV_ITER for
el8. So kc_generic_perform_write remains in place for now.
Signed-off-by: Auke Kok <auke.kok@versity.com>
This is a pre-el7 remnant, possibly from a really old rhel9
version, and was already effectively a stub.
Signed-off-by: Auke Kok <auke.kok@versity.com>
El9.8 backported the upstream v6.15.* rename of from_timer to
timer_container_of. Switch the two callers in fence.c and recov.c
to the new style and add a simple kcompat define for older kernels.
Signed-off-by: Auke Kok <auke.kok@versity.com>
Similar to before when namespaces were added, they are now translated to
a mnt_idmap, since v6.2-rc1-2-gabf08576afe3.
Signed-off-by: Auke Kok <auke.kok@versity.com>
Add kernelcompat helpers for initial use of list_lru for shrinking. The
most complicated part is the walk callback type changing.
Signed-off-by: Zach Brown <zab@versity.com>
These 2 sections of compat for readdir are wholly obsolete and can be
hard dropped, which restores the method to look like current upstream
code.
This was added in ddd1a4e.
Signed-off-by: Auke Kok <auke.kok@versity.com>
v5.19-rc4-52-ge33c267ab70d Adds shrinker names to the registration
call to aid with shrinker debugging, which is highly opaque.
To enable you'll have to recompile the kernel with
CONFIG_SHRINKER_DEBUG=y though, since it's disabled by default in
OSV kernels.
Signed-off-by: Auke Kok <auke.kok@versity.com>
We instead opt to use sock_setsockopt which is generally exactly the
same and can be easily converted to map to kernel_setsockopt without
impacting the code significantly.
There are 3 methods we're calling with usec timeval's, and that is
significantly different now that this requires a bit more compat code
so we split these out to separate compat functions to handle them.
Some of the TCP sock functions also have a slightly different signature
that we want to split them out (struct socket vs. sock). Some further
no longer return success, either.
Signed-off-by: Auke Kok <auke.kok@versity.com>
v5.12-rc6-9-g4f0f586bf0c8
All list_sort functions use the list_cmp_func_t type, which compares
list_head member types. These are now required to be `const` as the
compiler will now check them. This propagates into our callers.
Signed-off-by: Auke Kok <auke.kok@versity.com>
v4.16-rc1-1-g9b2c45d479d0
This interface now returns (sizeof (addr)) on success, instead of 0.
Therefore, we have to change the error condition detection.
The compat for older kernels handles the addrlen check internally.
Signed-off-by: Auke Kok <auke.kok@versity.com>
MS_* flags from <linux/mount.h> should not be used in the kernel
anymore from 4.x onwards. Instead, we need to use the SB_* versions
Signed-off-by: Auke Kok <auke.kok@versity.com>
Auke Kok
Zach Brown
Benjamin LaHaiseandAuke Kok