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| author |   Alex Shi <alexs@kernel.org> | 2024-12-17 00:04:33 +0900 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2025-01-25 20:22:33 -0800 |
| commit | c1b3bb73d55e17fb4b322a0d85f5450baff415e4 (patch) | |
| tree | 27d1a7e3e6fa0844707451d2dd57a79a090dd2e6 /arch | |
| parent | mm/zsmalloc: add zpdesc memory descriptor for zswap.zpool (diff) | |
| download | wireguard-linux-c1b3bb73d55e17fb4b322a0d85f5450baff415e4.tar.xz wireguard-linux-c1b3bb73d55e17fb4b322a0d85f5450baff415e4.zip | |
mm/zsmalloc: use zpdesc in trylock_zspage()/lock_zspage()
Convert trylock_zspage() and lock_zspage() to use zpdesc. To achieve
that, introduce a couple of helper functions:
- zpdesc_lock()
- zpdesc_unlock()
- zpdesc_trylock()
- zpdesc_wait_locked()
- zpdesc_get()
- zpdesc_put()
Here we use the folio version of functions for 2 reasons. First,
zswap.zpool currently only uses order-0 pages and using folio could save
some compound_head checks. Second, folio_put could bypass devmap checking
that we don't need.
BTW, thanks Intel LKP found a build warning on the patch.
Originally-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Link: https://lkml.kernel.org/r/20241216150450.1228021-3-42.hyeyoo@gmail.com
Signed-off-by: Alex Shi <alexs@kernel.org>
Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Acked-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Tested-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions