[PATCH 0/2] mm: huge_memory: clean up defrag sysfs with shared data tables

[Breno Leitao <leitao@debian.org>]

Refactor defrag_store() and defrag_show() to use shared data tables
instead of duplicated if/else chains.

Patch 1 introduces an enum defrag_mode, a defrag_mode_strings[] table,
and a defrag_flags[] mapping array, then rewrites defrag_store() to use
sysfs_match_string() with a loop over defrag_flags[].

Patch 2 refactors defrag_show() to use the same arrays, replacing its
hardcoded if/else chain of test_bit() calls and string literals.

This follows the same pattern applied to anon_enabled_store() in commit
522dfb4ba71f ("mm: huge_memory: refactor anon_enabled_store() with
change_anon_orders()").

Breno Leitao (2):
  mm: huge_memory: use sysfs_match_string() in defrag_store()
  mm: huge_memory: refactor defrag_show() to use defrag_flags[]

Signed-off-by: Breno Leitao <leitao@debian.org>
---
Breno Leitao (2):
      mm: huge_memory: use sysfs_match_string() in defrag_store()
      mm: huge_memory: refactor defrag_show() to use defrag_flags[]

 mm/huge_memory.c | 98 ++++++++++++++++++++++++++++++++------------------------
 1 file changed, 56 insertions(+), 42 deletions(-)
---
base-commit: 785f0eb2f85decbe7c1ef9ae922931f0194ffc2e
change-id: 20260320-thp_defrag-540fc4f1fa3d

Best regards,
--  
Breno Leitao <leitao@debian.org>