[LU-17482] short read does not set ki_pos correctly

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.16.0
• Affects Version/s: Lustre 2.15.5
• Labels: LTS15
• Severity: 3
• Assignee: Zhenyu Xu
• Reporter: Zhenyu Xu

Description

00000080:00020000:3.0:1706058118.952841:0:7094:0:(file.c:2098:file_read_confine_iter()) event.log.20240123T162623_0: read [198356992, 198361088] over eof, kms 198356992, file_size 198356992.
00000080:00020000:3.0:1706058118.952904:0:7094:0:(file.c:2098:file_read_confine_iter()) event.log.20240123T162623_0: read [198361088, 198365184] over eof, kms 198362740, file_size 198362740.

short read does not set ki_pos correctly, and jumps to wrong position at next read as the file being appended by others.

Issue Links

• is related to: LU-16025 Read past file size after truncate from another client