[LU-3496] various optimizations and cleanup for OSS

• Type: Improvement
• Resolution: Fixed
• Priority: Trivial
• Fix Version/s: Lustre 2.5.0
• Affects Version/s: Lustre 2.5.0
• Labels: patch
• Assignee: John Hammond
• Reporter: Andrew Perepechko

Description

A patch including several trivial optimizations and cleanup will be uploaded shortly.

Comments

[Andrew Perepechko]

Could you please abandon http://review.whamcloud.com/#/c/6758/ and close this ticket?

I cannot do that myself, because the review request was created under an account to which I don't have access anymore.

[Peter Jones]

John seems to have been reviewing these patches

[Andrew Perepechko]

http://review.whamcloud.com/#/c/6758/

ost: code cleanup

This patch cleans up some OST code.

[Andrew Perepechko]

http://review.whamcloud.com/#/c/6757/

lprocfs: implement log2 using bitops

This patch implements log2 using fls.

[Andrew Perepechko]

http://review.whamcloud.com/#/c/6756/

ost: lprocfs batch update

Update lprocfs stats such as cache hits, misses, totals
using single calls to lprocfs_counter_add.

[Andrew Perepechko]

http://review.whamcloud.com/#/c/6755/

ost: convert devlock from spinlock into rwlock

This patch converts devlock into rwlock so as to reduce
lock contention for dev_set,check_rdonly functions.

[Andrew Perepechko]

MRP-999 only partially applied to Intel:master.