diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2015-08-21 02:31:20 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-08-21 02:31:20 -0400 |
| commit | 061f98e959ea025a5d87c3e089d59ec2ec5f5d6d (patch) | |
| tree | 4fd1c5d0eb8fd8ee55057dcb2da526d6bbade8d6 /include | |
| parent | b5f5914cb8a2745ee4edc9d7f3596d596f1ea1b0 (diff) | |
| parent | ac05fbb40062411ea1b722aa2cede7feaa94f1b4 (diff) | |
| download | linux-stable-061f98e959ea025a5d87c3e089d59ec2ec5f5d6d.tar.gz linux-stable-061f98e959ea025a5d87c3e089d59ec2ec5f5d6d.tar.bz2 linux-stable-061f98e959ea025a5d87c3e089d59ec2ec5f5d6d.zip | |
Merge branch 'superblock-scaling' of git://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-next into for-next
Conflicts:
include/linux/fs.h
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fs.h | 12 | ||||
| -rw-r--r-- | include/linux/fsnotify_backend.h | 4 | ||||
| -rw-r--r-- | include/linux/list.h | 5 |
3 files changed, 16 insertions, 5 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index ce356f66cc2a..9b85aa5c7a70 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -637,7 +637,7 @@ struct inode { unsigned long dirtied_time_when; struct hlist_node i_hash; - struct list_head i_wb_list; /* backing dev IO list */ + struct list_head i_io_list; /* backing dev IO list */ #ifdef CONFIG_CGROUP_WRITEBACK struct bdi_writeback *i_wb; /* the associated cgroup wb */ @@ -1303,7 +1303,6 @@ struct super_block { #endif const struct xattr_handler **s_xattr; - struct list_head s_inodes; /* all inodes */ struct hlist_bl_head s_anon; /* anonymous dentries for (nfs) exporting */ struct list_head s_mounts; /* list of mounts; _not_ for fs use */ struct block_device *s_bdev; @@ -1370,10 +1369,17 @@ struct super_block { struct list_lru s_inode_lru ____cacheline_aligned_in_smp; struct rcu_head rcu; struct work_struct destroy_work; + + struct mutex s_sync_lock; /* sync serialisation lock */ + /* * Indicates how deep in a filesystem stack this SB is */ int s_stack_depth; + + /* s_inode_list_lock protects s_inodes */ + spinlock_t s_inode_list_lock ____cacheline_aligned_in_smp; + struct list_head s_inodes; /* all inodes */ }; extern struct timespec current_fs_time(struct super_block *sb); @@ -2607,7 +2613,7 @@ static inline void insert_inode_hash(struct inode *inode) extern void __remove_inode_hash(struct inode *); static inline void remove_inode_hash(struct inode *inode) { - if (!inode_unhashed(inode)) + if (!inode_unhashed(inode) && !hlist_fake(&inode->i_hash)) __remove_inode_hash(inode); } diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index 65a517dd32f7..0390ee69c439 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -357,7 +357,7 @@ extern void fsnotify_clear_marks_by_group_flags(struct fsnotify_group *group, un extern void fsnotify_clear_marks_by_group(struct fsnotify_group *group); extern void fsnotify_get_mark(struct fsnotify_mark *mark); extern void fsnotify_put_mark(struct fsnotify_mark *mark); -extern void fsnotify_unmount_inodes(struct list_head *list); +extern void fsnotify_unmount_inodes(struct super_block *sb); /* put here because inotify does some weird stuff when destroying watches */ extern void fsnotify_init_event(struct fsnotify_event *event, @@ -393,7 +393,7 @@ static inline u32 fsnotify_get_cookie(void) return 0; } -static inline void fsnotify_unmount_inodes(struct list_head *list) +static inline void fsnotify_unmount_inodes(struct super_block *sb) {} #endif /* CONFIG_FSNOTIFY */ diff --git a/include/linux/list.h b/include/linux/list.h index feb773c76ee0..3e3e64a61002 100644 --- a/include/linux/list.h +++ b/include/linux/list.h @@ -672,6 +672,11 @@ static inline void hlist_add_fake(struct hlist_node *n) n->pprev = &n->next; } +static inline bool hlist_fake(struct hlist_node *h) +{ + return h->pprev == &h->next; +} + /* * Move a list from one list head to another. Fixup the pprev * reference of the first entry if it exists. |