| Message ID | 20200422150256.23473-7-jack@suse.cz (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | mm: Speedup page cache truncation | expand |
diff --git a/lib/xarray.c b/lib/xarray.c index 96be029412b2..a372c59e3914 100644 --- a/lib/xarray.c +++ b/lib/xarray.c @@ -1479,8 +1479,12 @@ void *__xa_cmpxchg(struct xarray *xa, unsigned long index, curr = xas_load(&xas); if (curr == old) { xas_store(&xas, entry); - if (xa_track_free(xa) && entry && !curr) - xas_clear_mark(&xas, XA_FREE_MARK); + if (xa_track_free(xa)) { + if (entry && !curr) + xas_clear_mark(&xas, XA_FREE_MARK); + else if (!entry && curr) + xas_set_mark(&xas, XA_FREE_MARK); + } } } while (__xas_nomem(&xas, gfp));
__xa_cmpxchg() relies on xas_store() to set XA_FREE_MARK when storing NULL into xarray that has free tracking enabled. Make the setting of XA_FREE_MARK explicit similarly as its clearing currently is. Signed-off-by: Jan Kara <jack@suse.cz> --- lib/xarray.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)