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-rw-r--r--fs/btrfs/async-thread.c6
-rw-r--r--fs/btrfs/compat.h40
-rw-r--r--fs/btrfs/crc32c.h6
-rw-r--r--fs/btrfs/ctree.h7
-rw-r--r--fs/btrfs/disk-io.c28
-rw-r--r--fs/btrfs/export.c6
-rw-r--r--fs/btrfs/extent_io.c66
-rw-r--r--fs/btrfs/file.c24
-rw-r--r--fs/btrfs/inode.c135
-rw-r--r--fs/btrfs/super.c7
-rw-r--r--fs/btrfs/sysfs.c33
-rw-r--r--fs/btrfs/volumes.c20
12 files changed, 10 insertions, 368 deletions
diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c
index 2ee30174019..4e780b279de 100644
--- a/fs/btrfs/async-thread.c
+++ b/fs/btrfs/async-thread.c
@@ -20,13 +20,7 @@
#include <linux/kthread.h>
#include <linux/list.h>
#include <linux/spinlock.h>
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
# include <linux/freezer.h>
-#else
-# include <linux/sched.h>
-#endif
-
#include "async-thread.h"
/*
diff --git a/fs/btrfs/compat.h b/fs/btrfs/compat.h
index b0ed1887d9b..cd6598b169d 100644
--- a/fs/btrfs/compat.h
+++ b/fs/btrfs/compat.h
@@ -1,9 +1,8 @@
#ifndef _COMPAT_H_
#define _COMPAT_H_
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,26)
-#define trylock_page(page) (!TestSetPageLocked(page))
-#endif
+#define btrfs_drop_nlink(inode) drop_nlink(inode)
+#define btrfs_inc_nlink(inode) inc_nlink(inode)
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,27)
static inline struct dentry *d_obtain_alias(struct inode *inode)
@@ -22,39 +21,4 @@ static inline struct dentry *d_obtain_alias(struct inode *inode)
}
#endif
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18)
-static inline void btrfs_drop_nlink(struct inode *inode)
-{
- inode->i_nlink--;
-}
-
-static inline void btrfs_inc_nlink(struct inode *inode)
-{
- inode->i_nlink++;
-}
-#else
-# define btrfs_drop_nlink(inode) drop_nlink(inode)
-# define btrfs_inc_nlink(inode) inc_nlink(inode)
-#endif
-
-/*
- * Even if AppArmor isn't enabled, it still has different prototypes.
- * Add more distro/version pairs here to declare which has AppArmor applied.
- */
-#if defined(CONFIG_SUSE_KERNEL)
-# if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
-# define REMOVE_SUID_PATH 1
-# endif
-#endif
-
-/*
- * catch any other distros that have patched in apparmor. This isn't
- * 100% reliable because it won't catch people that hand compile their
- * own distro kernels without apparmor compiled in. But, it is better
- * than nothing.
- */
-#ifdef CONFIG_SECURITY_APPARMOR
-# define REMOVE_SUID_PATH 1
-#endif
-
#endif /* _COMPAT_H_ */
diff --git a/fs/btrfs/crc32c.h b/fs/btrfs/crc32c.h
index bf6c12e8573..4f0fefed132 100644
--- a/fs/btrfs/crc32c.h
+++ b/fs/btrfs/crc32c.h
@@ -96,13 +96,7 @@ static inline u32 __btrfs_crc32c(u32 crc, unsigned char const *address,
* We must workaround older implementations of crc32c_le()
* found on older kernel versions.
*/
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
-#define btrfs_crc32c(seed, data, length) \
- __cpu_to_le32( __btrfs_crc32c( __le32_to_cpu(seed), \
- (unsigned char const *)data, length) )
-#else
#define btrfs_crc32c(seed, data, length) \
__btrfs_crc32c(seed, (unsigned char const *)data, length)
#endif
-#endif
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 138c157bbc4..3b3c1ca50c5 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1472,12 +1472,9 @@ static inline u32 btrfs_level_size(struct btrfs_root *root, int level) {
((unsigned long)(btrfs_leaf_data(leaf) + \
btrfs_item_offset_nr(leaf, slot)))
-static inline struct dentry *fdentry(struct file *file) {
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18)
- return file->f_dentry;
-#else
+static inline struct dentry *fdentry(struct file *file)
+{
return file->f_path.dentry;
-#endif
}
/* extent-tree.c */
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index d35ca6a3f51..dffb8dabd53 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -26,11 +26,7 @@
#include <linux/buffer_head.h> // for block_sync_page
#include <linux/workqueue.h>
#include <linux/kthread.h>
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
# include <linux/freezer.h>
-#else
-# include <linux/sched.h>
-#endif
#include "crc32c.h"
#include "ctree.h"
#include "disk-io.h"
@@ -373,21 +369,11 @@ out:
return ret;
}
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
static void end_workqueue_bio(struct bio *bio, int err)
-#else
-static int end_workqueue_bio(struct bio *bio,
- unsigned int bytes_done, int err)
-#endif
{
struct end_io_wq *end_io_wq = bio->bi_private;
struct btrfs_fs_info *fs_info;
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
- if (bio->bi_size)
- return 1;
-#endif
-
fs_info = end_io_wq->info;
end_io_wq->error = err;
end_io_wq->work.func = end_workqueue_fn;
@@ -397,10 +383,6 @@ static int end_workqueue_bio(struct bio *bio,
&end_io_wq->work);
else
btrfs_queue_worker(&fs_info->endio_workers, &end_io_wq->work);
-
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
- return 0;
-#endif
}
int btrfs_bio_wq_end_io(struct btrfs_fs_info *info, struct bio *bio,
@@ -1161,9 +1143,7 @@ void btrfs_unplug_io_fn(struct backing_dev_info *bdi, struct page *page)
static int setup_bdi(struct btrfs_fs_info *info, struct backing_dev_info *bdi)
{
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
bdi_init(bdi);
-#endif
bdi->ra_pages = default_backing_dev_info.ra_pages;
bdi->state = 0;
bdi->capabilities = default_backing_dev_info.capabilities;
@@ -1242,11 +1222,7 @@ static void end_workqueue_fn(struct btrfs_work *work)
bio->bi_private = end_io_wq->private;
bio->bi_end_io = end_io_wq->end_io;
kfree(end_io_wq);
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
- bio_endio(bio, bio->bi_size, error);
-#else
bio_endio(bio, error);
-#endif
}
static int cleaner_kthread(void *arg)
@@ -1673,9 +1649,7 @@ fail:
kfree(extent_root);
kfree(tree_root);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
bdi_destroy(&fs_info->bdi);
-#endif
kfree(fs_info);
return ERR_PTR(err);
}
@@ -1936,9 +1910,7 @@ int close_ctree(struct btrfs_root *root)
btrfs_close_devices(fs_info->fs_devices);
btrfs_mapping_tree_free(&fs_info->mapping_tree);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
bdi_destroy(&fs_info->bdi);
-#endif
kfree(fs_info->extent_root);
kfree(fs_info->tree_root);
diff --git a/fs/btrfs/export.c b/fs/btrfs/export.c
index 2b357a6d240..48b82cd7583 100644
--- a/fs/btrfs/export.c
+++ b/fs/btrfs/export.c
@@ -7,12 +7,6 @@
#include "export.h"
#include "compat.h"
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-#define FILEID_BTRFS_WITHOUT_PARENT 0x4d
-#define FILEID_BTRFS_WITH_PARENT 0x4e
-#define FILEID_BTRFS_WITH_PARENT_ROOT 0x4f
-#endif
-
#define BTRFS_FID_SIZE_NON_CONNECTABLE (offsetof(struct btrfs_fid, parent_objectid)/4)
#define BTRFS_FID_SIZE_CONNECTABLE (offsetof(struct btrfs_fid, parent_root_objectid)/4)
#define BTRFS_FID_SIZE_CONNECTABLE_ROOT (sizeof(struct btrfs_fid)/4)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 58ad25838a4..e3a25be5c66 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1397,12 +1397,7 @@ static int check_page_writeback(struct extent_io_tree *tree,
* Scheduling is not allowed, so the extent state tree is expected
* to have one and only one object corresponding to this IO.
*/
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
static void end_bio_extent_writepage(struct bio *bio, int err)
-#else
-static int end_bio_extent_writepage(struct bio *bio,
- unsigned int bytes_done, int err)
-#endif
{
int uptodate = err == 0;
struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
@@ -1412,10 +1407,6 @@ static int end_bio_extent_writepage(struct bio *bio,
int whole_page;
int ret;
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
- if (bio->bi_size)
- return 1;
-#endif
do {
struct page *page = bvec->bv_page;
tree = &BTRFS_I(page->mapping->host)->io_tree;
@@ -1461,10 +1452,8 @@ static int end_bio_extent_writepage(struct bio *bio,
else
check_page_writeback(tree, page);
} while (bvec >= bio->bi_io_vec);
+
bio_put(bio);
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
- return 0;
-#endif
}
/*
@@ -1478,12 +1467,7 @@ static int end_bio_extent_writepage(struct bio *bio,
* Scheduling is not allowed, so the extent state tree is expected
* to have one and only one object corresponding to this IO.
*/
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
static void end_bio_extent_readpage(struct bio *bio, int err)
-#else
-static int end_bio_extent_readpage(struct bio *bio,
- unsigned int bytes_done, int err)
-#endif
{
int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
@@ -1493,11 +1477,6 @@ static int end_bio_extent_readpage(struct bio *bio,
int whole_page;
int ret;
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
- if (bio->bi_size)
- return 1;
-#endif
-
do {
struct page *page = bvec->bv_page;
tree = &BTRFS_I(page->mapping->host)->io_tree;
@@ -1556,9 +1535,6 @@ static int end_bio_extent_readpage(struct bio *bio,
} while (bvec >= bio->bi_io_vec);
bio_put(bio);
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
- return 0;
-#endif
}
/*
@@ -1566,12 +1542,7 @@ static int end_bio_extent_readpage(struct bio *bio,
* the structs in the extent tree when done, and set the uptodate bits
* as appropriate.
*/
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
static void end_bio_extent_preparewrite(struct bio *bio, int err)
-#else
-static int end_bio_extent_preparewrite(struct bio *bio,
- unsigned int bytes_done, int err)
-#endif
{
const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
@@ -1579,11 +1550,6 @@ static int end_bio_extent_preparewrite(struct bio *bio,
u64 start;
u64 end;
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
- if (bio->bi_size)
- return 1;
-#endif
-
do {
struct page *page = bvec->bv_page;
tree = &BTRFS_I(page->mapping->host)->io_tree;
@@ -1607,9 +1573,6 @@ static int end_bio_extent_preparewrite(struct bio *bio,
} while (bvec >= bio->bi_io_vec);
bio_put(bio);
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
- return 0;
-#endif
}
static struct bio *
@@ -2079,12 +2042,6 @@ done:
return 0;
}
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22)
-/* Taken directly from 2.6.23 with a mod for a lockpage hook */
-typedef int (*writepage_t)(struct page *page, struct writeback_control *wbc,
- void *data);
-#endif
-
/**
* write_cache_pages - walk the list of dirty pages of the given address space and write all of them.
* @mapping: address space structure to write
@@ -2201,10 +2158,9 @@ retry:
}
if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0))
mapping->writeback_index = index;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26)
+
if (wbc->range_cont)
wbc->range_start = index << PAGE_CACHE_SHIFT;
-#endif
return ret;
}
EXPORT_SYMBOL(extent_write_cache_pages);
@@ -2560,18 +2516,10 @@ static inline struct page *extent_buffer_page(struct extent_buffer *eb,
* by increasing the reference count. So we know the page must
* be in the radix tree.
*/
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26)
rcu_read_lock();
-#else
- read_lock_irq(&mapping->tree_lock);
-#endif
p = radix_tree_lookup(&mapping->page_tree, i);
-
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26)
rcu_read_unlock();
-#else
- read_unlock_irq(&mapping->tree_lock);
-#endif
+
return p;
}
@@ -2773,21 +2721,13 @@ int clear_extent_buffer_dirty(struct extent_io_tree *tree,
}
}
clear_page_dirty_for_io(page);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26)
spin_lock_irq(&page->mapping->tree_lock);
-#else
- read_lock_irq(&page->mapping->tree_lock);
-#endif
if (!PageDirty(page)) {
radix_tree_tag_clear(&page->mapping->page_tree,
page_index(page),
PAGECACHE_TAG_DIRTY);
}
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26)
spin_unlock_irq(&page->mapping->tree_lock);
-#else
- read_unlock_irq(&page->mapping->tree_lock);
-#endif
unlock_page(page);
}
return 0;
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 48a702d41c8..8856570a0eb 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -871,15 +871,8 @@ static ssize_t btrfs_file_write(struct file *file, const char __user *buf,
goto out_nolock;
if (count == 0)
goto out_nolock;
-#ifdef REMOVE_SUID_PATH
- err = remove_suid(&file->f_path);
-#else
-# if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26)
+
err = file_remove_suid(file);
-# else
- err = remove_suid(fdentry(file));
-# endif
-#endif
if (err)
goto out_nolock;
file_update_time(file);
@@ -1003,17 +996,10 @@ out_nolock:
btrfs_commit_transaction(trans, root);
}
} else if (num_written > 0 && (file->f_flags & O_DIRECT)) {
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22)
- do_sync_file_range(file, start_pos,
- start_pos + num_written - 1,
- SYNC_FILE_RANGE_WRITE |
- SYNC_FILE_RANGE_WAIT_AFTER);
-#else
do_sync_mapping_range(inode->i_mapping, start_pos,
start_pos + num_written - 1,
SYNC_FILE_RANGE_WRITE |
SYNC_FILE_RANGE_WAIT_AFTER);
-#endif
invalidate_mapping_pages(inode->i_mapping,
start_pos >> PAGE_CACHE_SHIFT,
(start_pos + num_written - 1) >> PAGE_CACHE_SHIFT);
@@ -1097,12 +1083,7 @@ out:
}
static struct vm_operations_struct btrfs_file_vm_ops = {
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
- .nopage = filemap_nopage,
- .populate = filemap_populate,
-#else
.fault = filemap_fault,
-#endif
.page_mkwrite = btrfs_page_mkwrite,
};
@@ -1118,9 +1099,6 @@ struct file_operations btrfs_file_operations = {
.read = do_sync_read,
.aio_read = generic_file_aio_read,
.splice_read = generic_file_splice_read,
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18)
- .sendfile = generic_file_sendfile,
-#endif
.write = btrfs_file_write,
.mmap = btrfs_file_mmap,
.open = generic_file_open,
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index adb169d739c..48a3dc03080 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2073,104 +2073,6 @@ err:
return ret;
}
-/* Kernels earlier than 2.6.28 still have the NFS deadlock where nfsd
- will call the file system's ->lookup() method from within its
- filldir callback, which in turn was called from the file system's
- ->readdir() method. And will deadlock for many file systems. */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-
-struct nfshack_dirent {
- u64 ino;
- loff_t offset;
- int namlen;
- unsigned int d_type;
- char name[];
-};
-
-struct nfshack_readdir {
- char *dirent;
- size_t used;
- int full;
-};
-
-
-
-static int btrfs_nfshack_filldir(void *__buf, const char *name, int namlen,
- loff_t offset, u64 ino, unsigned int d_type)
-{
- struct nfshack_readdir *buf = __buf;
- struct nfshack_dirent *de = (void *)(buf->dirent + buf->used);
- unsigned int reclen;
-
- reclen = ALIGN(sizeof(struct nfshack_dirent) + namlen, sizeof(u64));
- if (buf->used + reclen > PAGE_SIZE) {
- buf->full = 1;
- return -EINVAL;
- }
-
- de->namlen = namlen;
- de->offset = offset;
- de->ino = ino;
- de->d_type = d_type;
- memcpy(de->name, name, namlen);
- buf->used += reclen;
-
- return 0;
-}
-
-static int btrfs_nfshack_readdir(struct file *file, void *dirent,
- filldir_t filldir)
-{
- struct nfshack_readdir buf;
- struct nfshack_dirent *de;
- int err;
- int size;
- loff_t offset;
-
- buf.dirent = (void *)__get_free_page(GFP_KERNEL);
- if (!buf.dirent)
- return -ENOMEM;
-
- offset = file->f_pos;
-
- do {
- unsigned int reclen;
-
- buf.used = 0;
- buf.full = 0;
- err = btrfs_real_readdir(file, &buf, btrfs_nfshack_filldir);
- if (err)
- break;
-
- size = buf.used;
-
- if (!size)
- break;
-
- de = (struct nfshack_dirent *)buf.dirent;
- while (size > 0) {
- offset = de->offset;
-
- if (filldir(dirent, de->name, de->namlen, de->offset,
- de->ino, de->d_type))
- goto done;
- offset = file->f_pos;
-
- reclen = ALIGN(sizeof(*de) + de->namlen,
- sizeof(u64));
- size -= reclen;
- de = (struct nfshack_dirent *)((char *)de + reclen);
- }
- } while (buf.full);
-
- done:
- free_page((unsigned long)buf.dirent);
- file->f_pos = offset;
-
- return err;
-}
-#endif
-
int btrfs_write_inode(struct inode *inode, int wait)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
@@ -3311,13 +3213,8 @@ unsigned long btrfs_force_ra(struct address_space *mapping,
{
pgoff_t req_size = last_index - offset + 1;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
- offset = page_cache_readahead(mapping, ra, file, offset, req_size);
- return offset;
-#else
page_cache_sync_readahead(mapping, ra, file, offset, req_size);
return offset + req_size;
-#endif
}
struct inode *btrfs_alloc_inode(struct super_block *sb)
@@ -3373,14 +3270,7 @@ void btrfs_destroy_inode(struct inode *inode)
kmem_cache_free(btrfs_inode_cachep, BTRFS_I(inode));
}
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26)
static void init_once(void *foo)
-#elif LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
-static void init_once(struct kmem_cache * cachep, void *foo)
-#else
-static void init_once(void * foo, struct kmem_cache * cachep,
- unsigned long flags)
-#endif
{
struct btrfs_inode *ei = (struct btrfs_inode *) foo;
@@ -3403,22 +3293,10 @@ void btrfs_destroy_cachep(void)
struct kmem_cache *btrfs_cache_create(const char *name, size_t size,
unsigned long extra_flags,
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26)
- void (*ctor)(void *)
-#elif LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
- void (*ctor)(struct kmem_cache *, void *)
-#else
- void (*ctor)(void *, struct kmem_cache *,
- unsigned long)
-#endif
- )
+ void (*ctor)(void *))
{
return kmem_cache_create(name, size, 0, (SLAB_RECLAIM_ACCOUNT |
- SLAB_MEM_SPREAD | extra_flags), ctor
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
- ,NULL
-#endif
- );
+ SLAB_MEM_SPREAD | extra_flags), ctor);
}
int btrfs_init_cachep(void)
@@ -3666,12 +3544,7 @@ static int btrfs_set_page_dirty(struct page *page)
return __set_page_dirty_nobuffers(page);
}
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26)
static int btrfs_permission(struct inode *inode, int mask)
-#else
-static int btrfs_permission(struct inode *inode, int mask,
- struct nameidata *nd)
-#endif
{
if (btrfs_test_flag(inode, READONLY) && (mask & MAY_WRITE))
return -EACCES;
@@ -3702,11 +3575,7 @@ static struct inode_operations btrfs_dir_ro_inode_operations = {
static struct file_operations btrfs_dir_file_operations = {
.llseek = generic_file_llseek,
.read = generic_read_dir,
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
- .readdir = btrfs_nfshack_readdir,
-#else /* NFSd readdir/lookup deadlock is fixed */
.readdir = btrfs_real_readdir,
-#endif
.unlocked_ioctl = btrfs_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = btrfs_ioctl,
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index f7b3eac7ac6..8399d6d05d6 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -349,10 +349,7 @@ static int btrfs_fill_super(struct super_block * sb,
sb->s_root = root_dentry;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
save_mount_options(sb, data);
-#endif
-
return 0;
fail_close:
@@ -566,11 +563,7 @@ static struct super_operations btrfs_super_ops = {
.put_super = btrfs_put_super,
.write_super = btrfs_write_super,
.sync_fs = btrfs_sync_fs,
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)
- .read_inode = btrfs_read_locked_inode,
-#else
.show_options = generic_show_options,
-#endif
.write_inode = btrfs_write_inode,
.dirty_inode = btrfs_dirty_inode,
.alloc_inode = btrfs_alloc_inode,
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 61af5d8446e..300076e6676 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -28,7 +28,6 @@
#include "disk-io.h"
#include "transaction.h"
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
static ssize_t root_blocks_used_show(struct btrfs_root *root, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%llu\n",
@@ -267,35 +266,3 @@ void btrfs_exit_sysfs(void)
kset_unregister(btrfs_kset);
}
-#else
-
-int btrfs_sysfs_add_super(struct btrfs_fs_info *fs)
-{
- return 0;
-}
-
-int btrfs_sysfs_add_root(struct btrfs_root *root)
-{
- return 0;
-}
-
-void btrfs_sysfs_del_root(struct btrfs_root *root)
-{
- return;
-}
-
-void btrfs_sysfs_del_super(struct btrfs_fs_info *fs)
-{
- return;
-}
-
-int btrfs_init_sysfs(void)
-{
- return 0;
-}
-
-void btrfs_exit_sysfs(void)
-{
- return;
-}
-#endif
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index b9e5c2d82dd..ddf89626498 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2080,20 +2080,11 @@ int btrfs_unplug_page(struct btrfs_mapping_tree *map_tree,
}
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
static void end_bio_multi_stripe(struct bio *bio, int err)
-#else
-static int end_bio_multi_stripe(struct bio *bio,
- unsigned int bytes_done, int err)
-#endif
{
struct btrfs_multi_bio *multi = bio->bi_private;
int is_orig_bio = 0;
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
- if (bio->bi_size)
- return 1;
-#endif
if (err)
atomic_inc(&multi->error);
@@ -2122,17 +2113,10 @@ static int end_bio_multi_stripe(struct bio *bio,
}
kfree(multi);
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
- bio_endio(bio, bio->bi_size, err);
-#else
bio_endio(bio, err);
-#endif
} else if (!is_orig_bio) {
bio_put(bio);
}
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
- return 0;
-#endif
}
struct async_sched {
@@ -2248,11 +2232,7 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
} else {
bio->bi_bdev = root->fs_info->fs_devices->latest_bdev;
bio->bi_sector = logical >> 9;
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
- bio_endio(bio, bio->bi_size, -EIO);
-#else
bio_endio(bio, -EIO);
-#endif
}
dev_nr++;
}
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-04 09:39:58 +0000