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-rw-r--r--fs/btrfs/compat.h7
-rw-r--r--fs/btrfs/compression.c4
-rw-r--r--fs/btrfs/extent-tree.c27
-rw-r--r--fs/btrfs/extent_io.c4
-rw-r--r--fs/btrfs/version.sh34
-rw-r--r--fs/btrfs/volumes.c41
-rw-r--r--fs/btrfs/volumes.h3
7 files changed, 74 insertions, 46 deletions
diff --git a/fs/btrfs/compat.h b/fs/btrfs/compat.h
index cd6598b..dd1defd 100644
--- a/fs/btrfs/compat.h
+++ b/fs/btrfs/compat.h
@@ -21,4 +21,11 @@ static inline struct dentry *d_obtain_alias(struct inode *inode)
}
#endif
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
+# define __pagevec_lru_add_file __pagevec_lru_add
+# define open_bdev_exclusive open_bdev_excl
+# define close_bdev_exclusive(bdev, mode) close_bdev_excl(bdev)
+#endif
+
+
#endif /* _COMPAT_H_ */
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index bfd1512..df05f51 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -419,7 +419,7 @@ static noinline int add_ra_bio_pages(struct inode *inode,
/* open coding of lru_cache_add, also not exported */
page_cache_get(page);
if (!pagevec_add(&pvec, page))
- __pagevec_lru_add(&pvec);
+ __pagevec_lru_add_file(&pvec);
end = last_offset + PAGE_CACHE_SIZE - 1;
/*
@@ -475,7 +475,7 @@ next:
last_offset += PAGE_CACHE_SIZE;
}
if (pagevec_count(&pvec))
- __pagevec_lru_add(&pvec);
+ __pagevec_lru_add_file(&pvec);
return 0;
}
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index ee73efe..62d4970 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -28,6 +28,7 @@
#include "volumes.h"
#include "locking.h"
#include "ref-cache.h"
+#include "compat.h"
#define PENDING_EXTENT_INSERT 0
#define PENDING_EXTENT_DELETE 1
@@ -899,6 +900,17 @@ static int noinline remove_extent_backref(struct btrfs_trans_handle *trans,
return ret;
}
+static void btrfs_issue_discard(struct block_device *bdev,
+ u64 start, u64 len)
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
+ blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL);
+#else
+ blkdev_issue_discard(bdev, start >> 9, len >> 9);
+#endif
+}
+
+
static int noinline free_extents(struct btrfs_trans_handle *trans,
struct btrfs_root *extent_root,
struct list_head *del_list)
@@ -1108,6 +1120,7 @@ search:
BUG_ON(ret);
#ifdef BIO_RW_DISCARD
+ map_length = tmp->num_bytes;
ret = btrfs_map_block(&info->mapping_tree, READ,
tmp->bytenr, &map_length, &multi,
0);
@@ -1115,16 +1128,16 @@ search:
struct btrfs_bio_stripe *stripe;
int i;
- stripe = multi->stripe;
+ stripe = multi->stripes;
if (map_length > tmp->num_bytes)
map_length = tmp->num_bytes;
for (i = 0; i < multi->num_stripes;
i++, stripe++)
- blkdev_issue_discard(stripe->dev->bdev,
- stripe->physical >> 9,
- map_length >> 9);
+ btrfs_issue_discard(stripe->dev->bdev,
+ stripe->physical,
+ map_length);
kfree(multi);
}
#endif
@@ -2498,9 +2511,9 @@ static int __free_extent(struct btrfs_trans_handle *trans,
map_length = num_bytes;
for (i = 0; i < multi->num_stripes; i++, stripe++) {
- blkdev_issue_discard(stripe->dev->bdev,
- stripe->physical >> 9,
- map_length >> 9);
+ btrfs_issue_discard(stripe->dev->bdev,
+ stripe->physical,
+ map_length);
}
kfree(multi);
}
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index a0f3804..3a65c10 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2639,14 +2639,14 @@ int extent_readpages(struct extent_io_tree *tree,
/* open coding of lru_cache_add, also not exported */
page_cache_get(page);
if (!pagevec_add(&pvec, page))
- __pagevec_lru_add(&pvec);
+ __pagevec_lru_add_file(&pvec);
__extent_read_full_page(tree, page, get_extent,
&bio, 0, &bio_flags);
}
page_cache_release(page);
}
if (pagevec_count(&pvec))
- __pagevec_lru_add(&pvec);
+ __pagevec_lru_add_file(&pvec);
BUG_ON(!list_empty(pages));
if (bio)
submit_one_bio(READ, bio, 0, bio_flags);
diff --git a/fs/btrfs/version.sh b/fs/btrfs/version.sh
index 0f57f24..1ca1952 100644
--- a/fs/btrfs/version.sh
+++ b/fs/btrfs/version.sh
@@ -8,24 +8,24 @@
v="v0.16"
-which hg > /dev/null
-if [ -d .hg ] && [ $? == 0 ]; then
- last=$(hg tags | grep -m1 -o '^v[0-9.]\+')
-
- # now check if the repo has commits since then...
- if [[ $(hg id -t) == $last || \
- $(hg di -r "$last:." | awk '/^diff/{print $NF}' | sort -u) == .hgtags ]]
- then
- # check if it's dirty
- if [[ $(hg id | cut -d' ' -f1) == *+ ]]; then
- v=$last+
- else
- v=$last
+which git &> /dev/null
+if [ $? == 0 ]; then
+ git branch >& /dev/null
+ if [ $? == 0 ]; then
+ if head=`git rev-parse --verify HEAD 2>/dev/null`; then
+ if tag=`git describe --tags 2>/dev/null`; then
+ v="$tag"
+ fi
+
+ # Are there uncommitted changes?
+ git update-index --refresh --unmerged > /dev/null
+ if git diff-index --name-only HEAD | \
+ grep -v "^scripts/package" \
+ | read dummy; then
+ v="$v"-dirty
+ fi
fi
- else
- # includes dirty flag
- v=$last+$(hg id -i)
- fi
+ fi
fi
echo "#ifndef __BUILD_VERSION" > .build-version.h
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index ecf0633..c3ee63f 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -85,7 +85,7 @@ int btrfs_cleanup_fs_uuids(void)
dev = list_entry(fs_devices->devices.next,
struct btrfs_device, dev_list);
if (dev->bdev) {
- close_bdev_excl(dev->bdev);
+ close_bdev_exclusive(dev->bdev, dev->mode);
fs_devices->open_devices--;
}
fs_devices->num_devices--;
@@ -317,7 +317,7 @@ again:
continue;
if (device->bdev) {
- close_bdev_excl(device->bdev);
+ close_bdev_exclusive(device->bdev, device->mode);
device->bdev = NULL;
fs_devices->open_devices--;
}
@@ -356,7 +356,7 @@ again:
list_for_each(cur, &fs_devices->devices) {
device = list_entry(cur, struct btrfs_device, dev_list);
if (device->bdev) {
- close_bdev_excl(device->bdev);
+ close_bdev_exclusive(device->bdev, device->mode);
fs_devices->open_devices--;
}
if (device->writeable) {
@@ -391,7 +391,8 @@ int btrfs_close_devices(struct btrfs_fs_devices *fs_devices)
return ret;
}
-int __btrfs_open_devices(struct btrfs_fs_devices *fs_devices, void *holder)
+int __btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
+ int flags, void *holder)
{
struct block_device *bdev;
struct list_head *head = &fs_devices->devices;
@@ -413,7 +414,7 @@ int __btrfs_open_devices(struct btrfs_fs_devices *fs_devices, void *holder)
if (!device->name)
continue;
- bdev = open_bdev_excl(device->name, MS_RDONLY, holder);
+ bdev = open_bdev_exclusive(device->name, flags, holder);
if (IS_ERR(bdev)) {
printk("open %s failed\n", device->name);
goto error;
@@ -453,6 +454,8 @@ int __btrfs_open_devices(struct btrfs_fs_devices *fs_devices, void *holder)
device->bdev = bdev;
device->in_fs_metadata = 0;
+ device->mode = flags;
+
fs_devices->open_devices++;
if (device->writeable) {
fs_devices->rw_devices++;
@@ -464,7 +467,7 @@ int __btrfs_open_devices(struct btrfs_fs_devices *fs_devices, void *holder)
error_brelse:
brelse(bh);
error_close:
- close_bdev_excl(bdev);
+ close_bdev_exclusive(bdev, MS_RDONLY);
error:
continue;
}
@@ -496,7 +499,7 @@ int btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
ret = 0;
}
} else {
- ret = __btrfs_open_devices(fs_devices, holder);
+ ret = __btrfs_open_devices(fs_devices, flags, holder);
}
mutex_unlock(&uuid_mutex);
return ret;
@@ -514,7 +517,7 @@ int btrfs_scan_one_device(const char *path, int flags, void *holder,
mutex_lock(&uuid_mutex);
- bdev = open_bdev_excl(path, flags, holder);
+ bdev = open_bdev_exclusive(path, flags, holder);
if (IS_ERR(bdev)) {
ret = PTR_ERR(bdev);
@@ -551,7 +554,7 @@ int btrfs_scan_one_device(const char *path, int flags, void *holder,
error_brelse:
brelse(bh);
error_close:
- close_bdev_excl(bdev);
+ close_bdev_exclusive(bdev, flags);
error:
mutex_unlock(&uuid_mutex);
return ret;
@@ -1003,7 +1006,7 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path)
goto out;
}
} else {
- bdev = open_bdev_excl(device_path, MS_RDONLY,
+ bdev = open_bdev_exclusive(device_path, MS_RDONLY,
root->fs_info->bdev_holder);
if (IS_ERR(bdev)) {
ret = PTR_ERR(bdev);
@@ -1073,10 +1076,10 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path)
BUG_ON(device->writeable);
brelse(bh);
if (bdev)
- close_bdev_excl(bdev);
+ close_bdev_exclusive(bdev, MS_RDONLY);
if (device->bdev) {
- close_bdev_excl(device->bdev);
+ close_bdev_exclusive(device->bdev, device->mode);
device->bdev = NULL;
device->fs_devices->open_devices--;
}
@@ -1112,11 +1115,11 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path)
if (device->bdev) {
/* one close for the device struct or super_block */
- close_bdev_excl(device->bdev);
+ close_bdev_exclusive(device->bdev, device->mode);
}
if (bdev) {
/* one close for us */
- close_bdev_excl(bdev);
+ close_bdev_exclusive(bdev, MS_RDONLY);
}
kfree(device->name);
kfree(device);
@@ -1127,7 +1130,7 @@ error_brelse:
brelse(bh);
error_close:
if (bdev)
- close_bdev_excl(bdev);
+ close_bdev_exclusive(bdev, MS_RDONLY);
out:
mutex_unlock(&root->fs_info->volume_mutex);
mutex_unlock(&uuid_mutex);
@@ -1272,7 +1275,7 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path)
if ((sb->s_flags & MS_RDONLY) && !root->fs_info->fs_devices->seeding)
return -EINVAL;
- bdev = open_bdev_excl(device_path, 0, root->fs_info->bdev_holder);
+ bdev = open_bdev_exclusive(device_path, 0, root->fs_info->bdev_holder);
if (!bdev) {
return -EIO;
}
@@ -1331,6 +1334,7 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path)
device->dev_root = root->fs_info->dev_root;
device->bdev = bdev;
device->in_fs_metadata = 1;
+ device->mode = 0;
set_blocksize(device->bdev, 4096);
if (seeding_dev) {
@@ -1379,7 +1383,7 @@ out:
mutex_unlock(&root->fs_info->volume_mutex);
return ret;
error:
- close_bdev_excl(bdev);
+ close_bdev_exclusive(bdev, 0);
if (seeding_dev) {
mutex_unlock(&uuid_mutex);
up_write(&sb->s_umount);
@@ -2907,7 +2911,8 @@ static int open_seed_devices(struct btrfs_root *root, u8 *fsid)
goto out;
}
- ret = __btrfs_open_devices(fs_devices, root->fs_info->bdev_holder);
+ ret = __btrfs_open_devices(fs_devices, MS_RDONLY,
+ root->fs_info->bdev_holder);
if (ret)
goto out;
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 1f6f25a..9b41e4d 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -42,6 +42,9 @@ struct btrfs_device {
struct block_device *bdev;
+ /* the mode sent to open_bdev_exclusive */
+ fmode_t mode;
+
char *name;
/* the internal btrfs device id */
generated by cgit v1.1 at 2024-10-30 08:46:55 +0000