[LU-6565] Only update header/tail and the byte of bit in llog_osd_write_rec()

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.8.0
• Affects Version/s: Lustre 2.8.0
• Assignee: Di Wang
• Reporter: Di Wang

Description

Only update header/tail and the byte of bit in llog_osd_write_rec(), so it does not need to update the whole header (8192 bytes), so DNE can save some space in the update log.

The patch is from Alex

http://review.whamcloud.com/#/c/12572/58/lustre/obdclass/llog_osd.c