Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
writeback: always use sb->s_bdi for writeback purposes
+4
-15
+4
-15
fs/fs-writeback.c
+4
-15
fs/fs-writeback.c
···
72
72
static inline struct backing_dev_info *inode_to_bdi(struct inode *inode)
73
73
{
74
74
struct super_block *sb = inode->i_sb;
75
-
struct backing_dev_info *bdi = inode->i_mapping->backing_dev_info;
76
75
77
-
/*
78
-
* For inodes on standard filesystems, we use superblock's bdi. For
79
-
* inodes on virtual filesystems, we want to use inode mapping's bdi
80
-
* because they can possibly point to something useful (think about
81
-
* block_dev filesystem).
82
-
*/
83
-
if (sb->s_bdi && sb->s_bdi != &noop_backing_dev_info) {
84
-
/* Some device inodes could play dirty tricks. Catch them... */
85
-
WARN(bdi != sb->s_bdi && bdi_cap_writeback_dirty(bdi),
86
-
"Dirtiable inode bdi %s != sb bdi %s\n",
87
-
bdi->name, sb->s_bdi->name);
88
-
return sb->s_bdi;
89
-
}
90
-
return bdi;
76
+
if (strcmp(sb->s_type->name, "bdev") == 0)
77
+
return inode->i_mapping->backing_dev_info;
78
+
79
+
return sb->s_bdi;
91
80
}
92
81
93
82
static void bdi_queue_work(struct backing_dev_info *bdi,