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Jens Axboe b31dc66a54 [PATCH] Kill PF_SYNCWRITE flag 
A process flag to indicate whether we are doing sync io is incredibly
ugly. It also causes performance problems when one does a lot of async
io and then proceeds to sync it. Part of the io will go out as async,
and the other part as sync. This causes a disconnect between the
previously submitted io and the synced io. For io schedulers such as CFQ,
this will cause us lost merges and suboptimal behaviour in scheduling.

Remove PF_SYNCWRITE completely from the fsync/msync paths, and let
the O_DIRECT path just directly indicate that the writes are sync
by using WRITE_SYNC instead.

Signed-off-by: Jens Axboe <axboe@suse.de>
2006-06-23 17:10:39 +02:00
..
bootmem.c [PATCH] x86_64: Handle empty PXMs that only contain hotplug memory 2006-04-09 11:53:16 -07:00
fadvise.c [PATCH] sys_sync_file_range() 2006-03-31 12:18:54 -08:00
filemap.c [PATCH] x86: cache pollution aware __copy_from_user_ll() 2006-06-23 07:42:56 -07:00
filemap.h [PATCH] x86: cache pollution aware __copy_from_user_ll() 2006-06-23 07:42:56 -07:00
filemap_xip.c [PATCH] replace inode_update_time with file_update_time 2006-01-10 08:01:30 -08:00
fremap.c [PATCH] fix update_mmu_cache in fremap.c 2006-06-23 07:42:52 -07:00
highmem.c BUG_ON() Conversion in mm/highmem.c 2006-04-02 13:47:35 +02:00
hugetlb.c [PATCH] tightening hugetlb strict accounting 2006-06-23 07:42:48 -07:00
internal.h [PATCH] remove set_page_count() outside mm/ 2006-03-22 07:54:02 -08:00
Kconfig [PATCH] Swapless page migration: modify core logic 2006-06-23 07:42:50 -07:00
madvise.c [PATCH] Fix MADV_REMOVE protection checking 2006-04-17 18:22:18 -07:00
Makefile [PATCH] uninline zone helpers 2006-03-27 08:44:48 -08:00
memory.c [PATCH] add page_mkwrite() vm_operations method 2006-06-23 07:42:51 -07:00
memory_hotplug.c [PATCH] update vm_total_pages at memory hotadd 2006-06-23 07:42:52 -07:00
mempolicy.c [PATCH] SELinux: add security_task_movememory calls to mm code 2006-06-23 07:42:54 -07:00
mempool.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2006-03-26 09:41:18 -08:00
migrate.c [PATCH] SELinux: add security_task_movememory calls to mm code 2006-06-23 07:42:54 -07:00
mincore.c
mlock.c [PATCH] move capable() to capability.h 2006-01-11 18:42:13 -08:00
mmap.c [PATCH] add page_mkwrite() vm_operations method 2006-06-23 07:42:51 -07:00
mmzone.c [PATCH] uninline zone helpers 2006-03-27 08:44:48 -08:00
mprotect.c [PATCH] add page_mkwrite() vm_operations method 2006-06-23 07:42:51 -07:00
mremap.c [PATCH] move capable() to capability.h 2006-01-11 18:42:13 -08:00
msync.c [PATCH] Kill PF_SYNCWRITE flag 2006-06-23 17:10:39 +02:00
nommu.c [PATCH] overcommit: use totalreserve_pages for nommu 2006-04-11 06:18:32 -07:00
oom_kill.c [PATCH] mm: fix typos in comments in mm/oom_kill.c 2006-06-23 07:42:47 -07:00
page-writeback.c [PATCH] writeback: fix range handling 2006-06-23 07:42:49 -07:00
page_alloc.c [PATCH] printk() should not be called under zone->lock 2006-06-23 07:42:52 -07:00
page_io.c [PATCH] mm: split page table lock 2005-10-29 21:40:42 -07:00
pdflush.c [PATCH] More BUG_ON conversion 2006-06-23 07:43:08 -07:00
prio_tree.c
readahead.c [PATCH] ext3_readdir: use generic readahead 2006-03-23 07:38:09 -08:00
rmap.c [PATCH] More page migration: use migration entries for file pages 2006-06-23 07:42:51 -07:00
shmem.c [PATCH] migration: remove unnecessary PageSwapCache checks 2006-06-23 07:42:46 -07:00
slab.c [PATCH] slab: kmalloc, kzalloc comments cleanup and fix 2006-06-23 07:42:52 -07:00
slob.c [PATCH] mm/slob.c: for_each_possible_cpu(), not NR_CPUS 2006-04-19 09:13:49 -07:00
sparse.c [PATCH] sparsemem: record nid during memory present 2006-06-23 07:42:51 -07:00
swap.c [PATCH] percpu_counters: create lib/percpu_counter.c 2006-06-23 07:43:06 -07:00
swap_state.c BUG_ON() Conversion in mm/swap_state.c 2006-04-01 01:25:12 +02:00
swapfile.c [PATCH] read_mapping_page for address space 2006-06-23 07:43:02 -07:00
thrash.c [PATCH] temporarily disable swap token on memory pressure 2005-11-28 14:42:25 -08:00
tiny-shmem.c [PATCH] do_truncate() call fix in tiny-shmem.c 2006-01-12 09:08:49 -08:00
truncate.c [PATCH] Remove semi-softlockup from invalidate_mapping_pages 2006-06-23 07:43:07 -07:00
util.c [PATCH] slab: optimize constant-size kzalloc calls 2006-03-25 08:22:49 -08:00
vmalloc.c [PATCH] mm: introduce remap_vmalloc_range() 2006-06-23 07:42:49 -07:00
vmscan.c [PATCH] initialise total_memory() earlier 2006-06-23 07:42:52 -07:00