diff options
| -rw-r--r-- | fs/btrfs/extent_io.c | 23 | ||||
| -rw-r--r-- | fs/btrfs/file.c | 4 | ||||
| -rw-r--r-- | fs/btrfs/inode.c | 12 |
3 files changed, 37 insertions, 2 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 5368e3b6eb96..1cf4baba4342 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2649,9 +2649,24 @@ static inline struct page *extent_buffer_page(struct extent_buffer *eb, mapping = eb->first_page->mapping; if (!mapping) return NULL; + + /* + * extent_buffer_page is only called after pinning the page + * 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; } @@ -2843,13 +2858,21 @@ 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 412ab4a26382..388ac397c2c8 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -886,7 +886,11 @@ static ssize_t btrfs_file_write(struct file *file, const char __user *buf, #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; diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 7af8be076ee5..c4afa9d78da9 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3293,7 +3293,9 @@ void btrfs_destroy_inode(struct inode *inode) kmem_cache_free(btrfs_inode_cachep, BTRFS_I(inode)); } -#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23) +#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, @@ -3321,7 +3323,9 @@ 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(2,6,23) +#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 *, @@ -3561,8 +3565,12 @@ 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; |