rpms/kernel/F-10 linux-2.6-btrfs-unstable-update.patch, NONE, 1.1 kernel.spec, 1.1366, 1.1367 linux-2.6-btrfs-experimental-branch.patch, 1.1, NONE
Chuck Ebbert
cebbert at fedoraproject.org
Thu May 21 23:43:16 UTC 2009
Author: cebbert
Update of /cvs/pkgs/rpms/kernel/F-10
In directory cvs1.fedora.phx.redhat.com:/tmp/cvs-serv25189
Modified Files:
kernel.spec
Added Files:
linux-2.6-btrfs-unstable-update.patch
Removed Files:
linux-2.6-btrfs-experimental-branch.patch
Log Message:
Copy the latest btrfs unstable update from F-11.
Remove hunks from btrfs update that went into 2.6.29.4 .
linux-2.6-btrfs-unstable-update.patch:
--- NEW FILE linux-2.6-btrfs-unstable-update.patch ---
diff --git a/fs/btrfs/Makefile b/fs/btrfs/Makefile
index d2cf5a5..9421284 100644
--- a/fs/btrfs/Makefile
+++ b/fs/btrfs/Makefile
@@ -1,25 +1,10 @@
-ifneq ($(KERNELRELEASE),)
-# kbuild part of makefile
obj-$(CONFIG_BTRFS_FS) := btrfs.o
-btrfs-y := super.o ctree.o extent-tree.o print-tree.o root-tree.o dir-item.o \
+
+btrfs-y += super.o ctree.o extent-tree.o print-tree.o root-tree.o dir-item.o \
file-item.o inode-item.o inode-map.o disk-io.o \
transaction.o inode.o file.o tree-defrag.o \
extent_map.o sysfs.o struct-funcs.o xattr.o ordered-data.o \
extent_io.o volumes.o async-thread.o ioctl.o locking.o orphan.o \
ref-cache.o export.o tree-log.o acl.o free-space-cache.o zlib.o \
- compression.o
-else
-
-# Normal Makefile
-
-KERNELDIR := /lib/modules/`uname -r`/build
-all:
- $(MAKE) -C $(KERNELDIR) M=`pwd` CONFIG_BTRFS_FS=m modules
-
-modules_install:
- $(MAKE) -C $(KERNELDIR) M=`pwd` modules_install
-clean:
- $(MAKE) -C $(KERNELDIR) M=`pwd` clean
-
-endif
+ compression.o delayed-ref.o
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index 1d53b62..cbba000 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -60,15 +60,20 @@ static struct posix_acl *btrfs_get_acl(struct inode *inode, int type)
return ERR_PTR(-EINVAL);
}
+ /* Handle the cached NULL acl case without locking */
+ acl = ACCESS_ONCE(*p_acl);
+ if (!acl)
+ return acl;
+
spin_lock(&inode->i_lock);
- if (*p_acl != BTRFS_ACL_NOT_CACHED)
- acl = posix_acl_dup(*p_acl);
+ acl = *p_acl;
+ if (acl != BTRFS_ACL_NOT_CACHED)
+ acl = posix_acl_dup(acl);
spin_unlock(&inode->i_lock);
- if (acl)
+ if (acl != BTRFS_ACL_NOT_CACHED)
return acl;
-
size = __btrfs_getxattr(inode, name, "", 0);
if (size > 0) {
value = kzalloc(size, GFP_NOFS);
@@ -80,9 +85,12 @@ static struct posix_acl *btrfs_get_acl(struct inode *inode, int type)
btrfs_update_cached_acl(inode, p_acl, acl);
}
kfree(value);
- } else if (size == -ENOENT) {
+ } else if (size == -ENOENT || size == -ENODATA || size == 0) {
+ /* FIXME, who returns -ENOENT? I think nobody */
acl = NULL;
btrfs_update_cached_acl(inode, p_acl, acl);
+ } else {
+ acl = ERR_PTR(-EIO);
}
return acl;
diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c
index c84ca1f..502c3d6 100644
--- a/fs/btrfs/async-thread.c
+++ b/fs/btrfs/async-thread.c
@@ -20,12 +20,12 @@
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/freezer.h>
-#include <linux/ftrace.h>
#include "async-thread.h"
#define WORK_QUEUED_BIT 0
#define WORK_DONE_BIT 1
#define WORK_ORDER_DONE_BIT 2
+#define WORK_HIGH_PRIO_BIT 3
/*
* container for the kthread task pointer and the list of pending work
@@ -37,6 +37,7 @@ struct btrfs_worker_thread {
/* list of struct btrfs_work that are waiting for service */
struct list_head pending;
+ struct list_head prio_pending;
/* list of worker threads from struct btrfs_workers */
struct list_head worker_list;
@@ -104,10 +105,16 @@ static noinline int run_ordered_completions(struct btrfs_workers *workers,
spin_lock_irqsave(&workers->lock, flags);
- while (!list_empty(&workers->order_list)) {
- work = list_entry(workers->order_list.next,
- struct btrfs_work, order_list);
-
+ while (1) {
+ if (!list_empty(&workers->prio_order_list)) {
+ work = list_entry(workers->prio_order_list.next,
+ struct btrfs_work, order_list);
+ } else if (!list_empty(&workers->order_list)) {
+ work = list_entry(workers->order_list.next,
+ struct btrfs_work, order_list);
+ } else {
+ break;
+ }
if (!test_bit(WORK_DONE_BIT, &work->flags))
break;
@@ -144,8 +151,14 @@ static int worker_loop(void *arg)
do {
spin_lock_irq(&worker->lock);
again_locked:
- while (!list_empty(&worker->pending)) {
- cur = worker->pending.next;
+ while (1) {
+ if (!list_empty(&worker->prio_pending))
+ cur = worker->prio_pending.next;
+ else if (!list_empty(&worker->pending))
+ cur = worker->pending.next;
+ else
+ break;
+
work = list_entry(cur, struct btrfs_work, list);
list_del(&work->list);
clear_bit(WORK_QUEUED_BIT, &work->flags);
@@ -164,7 +177,6 @@ again_locked:
spin_lock_irq(&worker->lock);
check_idle_worker(worker);
-
}
if (freezing(current)) {
worker->working = 0;
@@ -179,7 +191,8 @@ again_locked:
* jump_in?
*/
smp_mb();
- if (!list_empty(&worker->pending))
+ if (!list_empty(&worker->pending) ||
+ !list_empty(&worker->prio_pending))
continue;
/*
@@ -192,13 +205,18 @@ again_locked:
*/
schedule_timeout(1);
smp_mb();
- if (!list_empty(&worker->pending))
+ if (!list_empty(&worker->pending) ||
+ !list_empty(&worker->prio_pending))
continue;
+ if (kthread_should_stop())
+ break;
+
/* still no more work?, sleep for real */
spin_lock_irq(&worker->lock);
set_current_state(TASK_INTERRUPTIBLE);
- if (!list_empty(&worker->pending))
+ if (!list_empty(&worker->pending) ||
+ !list_empty(&worker->prio_pending))
goto again_locked;
/*
@@ -208,7 +226,8 @@ again_locked:
worker->working = 0;
spin_unlock_irq(&worker->lock);
- schedule();
+ if (!kthread_should_stop())
+ schedule();
}
__set_current_state(TASK_RUNNING);
}
@@ -245,6 +264,7 @@ void btrfs_init_workers(struct btrfs_workers *workers, char *name, int max)
INIT_LIST_HEAD(&workers->worker_list);
INIT_LIST_HEAD(&workers->idle_list);
INIT_LIST_HEAD(&workers->order_list);
+ INIT_LIST_HEAD(&workers->prio_order_list);
spin_lock_init(&workers->lock);
workers->max_workers = max;
workers->idle_thresh = 32;
@@ -270,6 +290,7 @@ int btrfs_start_workers(struct btrfs_workers *workers, int num_workers)
}
[...10358 lines suppressed...]
+ }
+ continue;
+ }
+ spin_lock(&device->io_lock);
+ requeue_list(pending_bios, pending, tail);
device->running_pending = 1;
spin_unlock(&device->io_lock);
@@ -224,13 +309,32 @@ loop_lock:
goto done;
}
}
+
+ if (num_sync_run) {
+ num_sync_run = 0;
+ blk_run_backing_dev(bdi, NULL);
+ }
+
+ cond_resched();
if (again)
goto loop;
spin_lock(&device->io_lock);
- if (device->pending_bios)
+ if (device->pending_bios.head || device->pending_sync_bios.head)
goto loop_lock;
spin_unlock(&device->io_lock);
+
+ /*
+ * IO has already been through a long path to get here. Checksumming,
+ * async helper threads, perhaps compression. We've done a pretty
+ * good job of collecting a batch of IO and should just unplug
+ * the device right away.
+ *
+ * This will help anyone who is waiting on the IO, they might have
+ * already unplugged, but managed to do so before the bio they
+ * cared about found its way down here.
+ */
+ blk_run_backing_dev(bdi, NULL);
done:
return 0;
}
@@ -1439,7 +1543,7 @@ static noinline int btrfs_update_device(struct btrfs_trans_handle *trans,
btrfs_set_device_io_align(leaf, dev_item, device->io_align);
btrfs_set_device_io_width(leaf, dev_item, device->io_width);
btrfs_set_device_sector_size(leaf, dev_item, device->sector_size);
- btrfs_set_device_total_bytes(leaf, dev_item, device->total_bytes);
+ btrfs_set_device_total_bytes(leaf, dev_item, device->disk_total_bytes);
btrfs_set_device_bytes_used(leaf, dev_item, device->bytes_used);
btrfs_mark_buffer_dirty(leaf);
@@ -1836,14 +1940,6 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
device->total_bytes = new_size;
if (device->writeable)
device->fs_devices->total_rw_bytes -= diff;
- ret = btrfs_update_device(trans, device);
- if (ret) {
- unlock_chunks(root);
- btrfs_end_transaction(trans, root);
- goto done;
- }
- WARN_ON(diff > old_total);
- btrfs_set_super_total_bytes(super_copy, old_total - diff);
unlock_chunks(root);
btrfs_end_transaction(trans, root);
@@ -1875,7 +1971,7 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
length = btrfs_dev_extent_length(l, dev_extent);
if (key.offset + length <= new_size)
- goto done;
+ break;
chunk_tree = btrfs_dev_extent_chunk_tree(l, dev_extent);
chunk_objectid = btrfs_dev_extent_chunk_objectid(l, dev_extent);
@@ -1888,6 +1984,26 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
goto done;
}
+ /* Shrinking succeeded, else we would be at "done". */
+ trans = btrfs_start_transaction(root, 1);
+ if (!trans) {
+ ret = -ENOMEM;
+ goto done;
+ }
+ lock_chunks(root);
+
+ device->disk_total_bytes = new_size;
+ /* Now btrfs_update_device() will change the on-disk size. */
+ ret = btrfs_update_device(trans, device);
+ if (ret) {
+ unlock_chunks(root);
+ btrfs_end_transaction(trans, root);
+ goto done;
+ }
+ WARN_ON(diff > old_total);
+ btrfs_set_super_total_bytes(super_copy, old_total - diff);
+ unlock_chunks(root);
+ btrfs_end_transaction(trans, root);
done:
btrfs_free_path(path);
return ret;
@@ -2458,7 +2574,7 @@ again:
max_errors = 1;
}
}
- if (multi_ret && rw == WRITE &&
+ if (multi_ret && (rw & (1 << BIO_RW)) &&
stripes_allocated < stripes_required) {
stripes_allocated = map->num_stripes;
free_extent_map(em);
@@ -2723,6 +2839,7 @@ static noinline int schedule_bio(struct btrfs_root *root,
int rw, struct bio *bio)
{
int should_queue = 1;
+ struct btrfs_pending_bios *pending_bios;
/* don't bother with additional async steps for reads, right now */
if (!(rw & (1 << BIO_RW))) {
@@ -2744,13 +2861,17 @@ static noinline int schedule_bio(struct btrfs_root *root,
bio->bi_rw |= rw;
spin_lock(&device->io_lock);
+ if (bio_sync(bio))
+ pending_bios = &device->pending_sync_bios;
+ else
+ pending_bios = &device->pending_bios;
- if (device->pending_bio_tail)
- device->pending_bio_tail->bi_next = bio;
+ if (pending_bios->tail)
+ pending_bios->tail->bi_next = bio;
- device->pending_bio_tail = bio;
- if (!device->pending_bios)
- device->pending_bios = bio;
+ pending_bios->tail = bio;
+ if (!pending_bios->head)
+ pending_bios->head = bio;
if (device->running_pending)
should_queue = 0;
@@ -2967,7 +3088,8 @@ static int fill_device_from_item(struct extent_buffer *leaf,
unsigned long ptr;
device->devid = btrfs_device_id(leaf, dev_item);
- device->total_bytes = btrfs_device_total_bytes(leaf, dev_item);
+ device->disk_total_bytes = btrfs_device_total_bytes(leaf, dev_item);
+ device->total_bytes = device->disk_total_bytes;
device->bytes_used = btrfs_device_bytes_used(leaf, dev_item);
device->type = btrfs_device_type(leaf, dev_item);
device->io_align = btrfs_device_io_align(leaf, dev_item);
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 86c44e9..5c3ff6d 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -23,13 +23,22 @@
#include "async-thread.h"
struct buffer_head;
+struct btrfs_pending_bios {
+ struct bio *head;
+ struct bio *tail;
+};
+
struct btrfs_device {
struct list_head dev_list;
struct list_head dev_alloc_list;
struct btrfs_fs_devices *fs_devices;
struct btrfs_root *dev_root;
- struct bio *pending_bios;
- struct bio *pending_bio_tail;
+
+ /* regular prio bios */
+ struct btrfs_pending_bios pending_bios;
+ /* WRITE_SYNC bios */
+ struct btrfs_pending_bios pending_sync_bios;
+
int running_pending;
u64 generation;
@@ -52,6 +61,9 @@ struct btrfs_device {
/* size of the device */
u64 total_bytes;
+ /* size of the disk */
+ u64 disk_total_bytes;
+
/* bytes used */
u64 bytes_used;
@@ -76,7 +88,7 @@ struct btrfs_device {
struct btrfs_fs_devices {
u8 fsid[BTRFS_FSID_SIZE]; /* FS specific uuid */
- /* the device with this id has the most recent coyp of the super */
+ /* the device with this id has the most recent copy of the super */
u64 latest_devid;
u64 latest_trans;
u64 num_devices;
Index: kernel.spec
===================================================================
RCS file: /cvs/pkgs/rpms/kernel/F-10/kernel.spec,v
retrieving revision 1.1366
retrieving revision 1.1367
diff -u -p -r1.1366 -r1.1367
--- kernel.spec 21 May 2009 23:27:48 -0000 1.1366
+++ kernel.spec 21 May 2009 23:42:46 -0000 1.1367
@@ -703,7 +703,7 @@ Patch2922: fs-relatime-make-default.patc
# fix stalls with ext3 data writeout
Patch2950: linux-2.6-kjournald-use-rt-io-priority.patch
-Patch3000: linux-2.6-btrfs-experimental-branch.patch
+Patch3000: linux-2.6-btrfs-unstable-update.patch
Patch4000: linux-2.6-usb-cdc-acm-remove-low-latency-flag.patch
@@ -1212,7 +1212,7 @@ ApplyPatch linux-2.6-ext4-fix-i_cached_e
# xfs
# btrfs
-ApplyPatch linux-2.6-btrfs-experimental-branch.patch
+ApplyPatch linux-2.6-btrfs-unstable-update.patch
# USB
ApplyPatch linux-2.6-usb-cdc-acm-remove-low-latency-flag.patch
@@ -1941,6 +1941,10 @@ fi
%kernel_variant_files -k vmlinux %{with_kdump} kdump
%changelog
+* Thu May 21 2009 Chuck Ebbert <cebbert at redhat.com> 2.6.29.4-67
+- Copy the latest btrfs unstable update from F-11.
+- Remove hunks from btrfs update that went into 2.6.29.4 .
+
* Thu May 21 2009 Chuck Ebbert <cebbert at redhat.com> 2.6.29.4-66
- Copy net-revert-forcedeth-power-down-phy-when-interface-is.patch
from F-11. This reverts only the power-down part of the original
--- linux-2.6-btrfs-experimental-branch.patch DELETED ---
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