From: Patrick Caulfield <[email protected]> Under high recovery loads dlm_sendd can monopolise the CPU and cause soft lockups. This one extra and one moved cond_resched() make it yield a little more during such times keeping work moving. Signed-Off-By: Patrick Caulfield <[email protected]> Signed-off-by: Steven Whitehouse <[email protected]> diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c index 62a8a6c..58bf3f5 100644 --- a/fs/dlm/lowcomms.c +++ b/fs/dlm/lowcomms.c @@ -1264,14 +1264,15 @@ static void send_to_sock(struct connection *con) if (len) { ret = sendpage(con->sock, e->page, offset, len, msg_flags); - if (ret == -EAGAIN || ret == 0) + if (ret == -EAGAIN || ret == 0) { + cond_resched(); goto out; + } if (ret <= 0) goto send_error; - } else { + } /* Don't starve people filling buffers */ cond_resched(); - } spin_lock(&con->writequeue_lock); e->offset += ret; -- 1.5.1.2 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
- Follow-Ups:
- References:
- [GFS2/DLM] Pre-pull patch posting
- From: [email protected]
- [PATCH 01/51] [GFS2] Fix two races relating to glock callbacks
- From: [email protected]
- [PATCH 02/51] [GFS2] Fix calculation of demote state
- From: [email protected]
- [PATCH 03/51] [GFS2] Clean up duplicate includes in fs/gfs2/
- From: [email protected]
- [PATCH 04/51] [GFS2] GFS2 not checking pointer on create when running under nfsd
- From: [email protected]
- [PATCH 05/51] [GFS2] Fix an oops in glock dumping
- From: [email protected]
- [PATCH 06/51] [GFS2] Move some code inside the log lock
- From: [email protected]
- [PATCH 07/51] [GFS2] Revert part of earlier log.c changes
- From: [email protected]
- [PATCH 08/51] [GFS2] Prevent infinite loop in try_rgrp_unlink()
- From: [email protected]
- [PATCH 09/51] [GFS2] use an temp variable to reduce a spin_unlock
- From: [email protected]
- [PATCH 10/51] [GFS2] Detach buf data during in-place writeback
- From: [email protected]
- [PATCH 11/51] [GFS2] mark struct *_operations const
- From: [email protected]
- [PATCH 12/51] [GFS2] use the declaration of gfs2_dops in the header file instead
- From: [email protected]
- [PATCH 13/51] [GFS2] Reduce number of gfs2_scand processes to one
- From: [email protected]
- [PATCH 14/51] [GFS2] invalid metadata block - REVISED
- From: [email protected]
- [PATCH 15/51] [GFS2] Ensure journal file cache is flushed after recovery
- From: [email protected]
- [PATCH 16/51] [GFS2] use list_for_each_entry instead
- From: [email protected]
- [PATCH 17/51] [GFS2] unneeded typecast
- From: [email protected]
- [PATCH 18/51] [GFS2] better code for translating characters
- From: [email protected]
- [PATCH 19/51] [GFS2] Force unstuff of hidden quota inode
- From: [email protected]
- [PATCH 20/51] [GFS2] fixed a NULL pointer assignment BUG
- From: [email protected]
- [PATCH 21/51] [GFS2] Fix quota do_list operation hang
- From: [email protected]
- [PATCH 22/51] [GFS2] Clean up invalidatepage/releasepage
- From: [email protected]
- [PATCH 23/51] [GFS2] Add a missing gfs2_trans_add_bh()
- From: [email protected]
- [PATCH 24/51] [GFS2] Add NULL entry to token table
- From: [email protected]
- [PATCH 25/51] [GFS2] Reduce truncate IO traffic
- From: [email protected]
- [PATCH 26/51] [DLM] Fix lowcomms socket closing
- From: [email protected]
- [PATCH 27/51] [GFS2] Wendy's dump lockname in hex & fix glock dump
- From: [email protected]
- [PATCH 28/51] [GFS2] Patch to protect sd_log_num_jdata
- From: [email protected]
- [PATCH 29/51] [GFS2] panic after can't parse mount arguments
- From: [email protected]
- [PATCH 30/51] [GFS2] delay glock demote for a minimum hold time
- From: [email protected]
- [PATCH 31/51] [GFS2] fix inode meta data corruption
- From: [email protected]
- [PATCH 32/51] [GFS2] Correct lock ordering in unlink
- From: [email protected]
- [PATCH 33/51] [GFS2] Introduce gfs2_remove_from_ail
- From: [email protected]
- [PATCH 34/51] [GFS2] Don't mark jdata dirty in gfs2_unstuffer_page()
- From: [email protected]
- [PATCH 35/51] [GFS2] Move pin/unpin into lops.c, clean up locking
- From: [email protected]
- [PATCH 36/51] [GFS2] Clean up ordered write code
- From: [email protected]
- [PATCH 37/51] [GFS2] Fix ordering of dirty/journal for ordered buffer unstuffing
- From: [email protected]
- [PATCH 38/51] [GFS2] Replace revoke structure with bufdata structure
- From: [email protected]
- [PATCH 39/51] [GFS2] Use slab operations for all gfs2_bufdata allocations
- From: [email protected]
- [PATCH 40/51] [GFS2] Clean up gfs2_trans_add_revoke()
- From: [email protected]
- [PATCH 41/51] [GFS2] flocks from same process trip kernel BUG at fs/gfs2/glock.c:1118!
- From: [email protected]
- [PATCH 42/51] [GFS2] Move inode deletion out of blocking_cb
- From: [email protected]
- [GFS2/DLM] Pre-pull patch posting
- Prev by Date: [PATCH 42/51] [GFS2] Move inode deletion out of blocking_cb
- Next by Date: [PATCH 44/51] [GFS2] GFS2: chmod hung - fix race in thread creation
- Previous by thread: [PATCH 42/51] [GFS2] Move inode deletion out of blocking_cb
- Next by thread: [PATCH 44/51] [GFS2] GFS2: chmod hung - fix race in thread creation
- Index(es):
 |