diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-30 20:20:05 -0500 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-30 20:20:05 -0500 |
commit | 1dff81f20cd55ffa5a8ee984da70ce0b99d29606 (patch) | |
tree | 06eb07bda250abfa8a78c3141db56862c8c7cf98 /Documentation | |
parent | 179475a3b46f86e2d06f83e2312218ac3f0cf3a7 (diff) | |
parent | d3f761104b097738932afcc310fbbbbfb007ef92 (diff) |
Merge branch 'for-2.6.29' of git://git.kernel.dk/linux-2.6-block
* 'for-2.6.29' of git://git.kernel.dk/linux-2.6-block: (43 commits)
bio: get rid of bio_vec clearing
bounce: don't rely on a zeroed bio_vec list
cciss: simplify parameters to deregister_disk function
cfq-iosched: fix race between exiting queue and exiting task
loop: Do not call loop_unplug for not configured loop device.
loop: Flush possible running bios when loop device is released.
alpha: remove dead BIO_VMERGE_BOUNDARY
Get rid of CONFIG_LSF
block: make blk_softirq_init() static
block: use min_not_zero in blk_queue_stack_limits
block: add one-hit cache for disk partition lookup
cfq-iosched: remove limit of dispatch depth of max 4 times quantum
nbd: tell the block layer that it is not a rotational device
block: get rid of elevator_t typedef
aio: make the lookup_ioctx() lockless
bio: add support for inlining a number of bio_vecs inside the bio
bio: allow individual slabs in the bio_set
bio: move the slab pointer inside the bio_set
bio: only mempool back the largest bio_vec slab cache
block: don't use plugging on SSD devices
...
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/block/biodoc.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt index 4dbb8be1c991..3c5434c83daf 100644 --- a/Documentation/block/biodoc.txt +++ b/Documentation/block/biodoc.txt | |||
@@ -914,7 +914,7 @@ I/O scheduler, a.k.a. elevator, is implemented in two layers. Generic dispatch | |||
914 | queue and specific I/O schedulers. Unless stated otherwise, elevator is used | 914 | queue and specific I/O schedulers. Unless stated otherwise, elevator is used |
915 | to refer to both parts and I/O scheduler to specific I/O schedulers. | 915 | to refer to both parts and I/O scheduler to specific I/O schedulers. |
916 | 916 | ||
917 | Block layer implements generic dispatch queue in ll_rw_blk.c and elevator.c. | 917 | Block layer implements generic dispatch queue in block/*.c. |
918 | The generic dispatch queue is responsible for properly ordering barrier | 918 | The generic dispatch queue is responsible for properly ordering barrier |
919 | requests, requeueing, handling non-fs requests and all other subtleties. | 919 | requests, requeueing, handling non-fs requests and all other subtleties. |
920 | 920 | ||
@@ -926,8 +926,8 @@ be built inside the kernel. Each queue can choose different one and can also | |||
926 | change to another one dynamically. | 926 | change to another one dynamically. |
927 | 927 | ||
928 | A block layer call to the i/o scheduler follows the convention elv_xxx(). This | 928 | A block layer call to the i/o scheduler follows the convention elv_xxx(). This |
929 | calls elevator_xxx_fn in the elevator switch (drivers/block/elevator.c). Oh, | 929 | calls elevator_xxx_fn in the elevator switch (block/elevator.c). Oh, xxx |
930 | xxx and xxx might not match exactly, but use your imagination. If an elevator | 930 | and xxx might not match exactly, but use your imagination. If an elevator |
931 | doesn't implement a function, the switch does nothing or some minimal house | 931 | doesn't implement a function, the switch does nothing or some minimal house |
932 | keeping work. | 932 | keeping work. |
933 | 933 | ||