[PATCH 2/5] man: fixups for io_uring_prep_cmd_discard.3

Mention the ioctl this is modelled after instead of the io_uring
cmd used to implement io_uring_prep_cmd_discard.3, and drop an
incorrect plural for page cache.

Signed-off-by: Christoph Hellwig <[email protected]>
---
 man/io_uring_prep_cmd_discard.3 | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/man/io_uring_prep_cmd_discard.3 b/man/io_uring_prep_cmd_discard.3
index 97786726f03b..349df86ff9c9 100644
--- a/man/io_uring_prep_cmd_discard.3
+++ b/man/io_uring_prep_cmd_discard.3
@@ -26,14 +26,14 @@ to start discarding
 at the specified
 .IR offset .
 
-The command is an asynchronous equivalent of
-.B BLOCK_URING_CMD_DISCARD
+The command is an asynchronous equivalent of the
+.B BLKDISCARD
 ioctl with a few differences. It allows multiple parallel discards, and it does
 not exclude concurrent writes and reads. As a result, it may lead to races for
 the data on the disk, if the application has IO inflight for the same ranges
 that the discard operates on. It's the user's responsibility to account for that.
-Furthermore, only best efforts are done to invalidate page caches. The user has
-to make sure that no other inflight requests are modifying or reading the
+Furthermore, only best efforts are done to invalidate the page cache. The user
+has to make sure that no other inflight requests are modifying or reading the
 range(s). If that is the case, it might result in stale page cache and data
 inconsistencies.
 
-- 
2.53.0