[PATCH xfs v2 0/2] Separate xfs_log_vec/iovec to save memory

[alexjlzheng]

From: Jinliang Zheng <alexjlzheng@xxxxxxxxxxx>

xfs_log_iovec dominates the memory usage of the
xfs_log_vec/xfs_log_iovec combination, and it is no longer useful after
the data is flushed to the iclog. This patchset separates xfs_log_iovec
from xfs_log_vec and releases them early to save memory.

Changelog:
V1:
- https://lore.kernel.org/linux-xfs/20240623123119.3562031-1-alexjlzheng@xxxxxxxxxxx/

V2:
- add kmem_cache for small object xfs_log_vec
- reduce redundant free and allocation of xfs_log_vec

Jinliang Zheng (2):
  xfs: add xfs_log_vec_cache for separate xfs_log_vec/xfs_log_iovec
  xfs: make xfs_log_iovec independent from xfs_log_vec and free it early

 fs/xfs/xfs_log.c     |  3 +++
 fs/xfs/xfs_log.h     | 10 ++++++++--
 fs/xfs/xfs_log_cil.c | 33 ++++++++++++++++++++-------------
 fs/xfs/xfs_super.c   |  9 +++++++++
 4 files changed, 40 insertions(+), 15 deletions(-)

-- 
2.39.3