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authorLinus Torvalds <torvalds@linux-foundation.org>2013-05-04 13:29:38 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-05-04 13:29:38 -0700
commitbd932ae1bd655979d0d765108721951051f0837d (patch)
treeec8ba10a8f6b02770a81587eb63f0560d19bd782 /include
parent150a8dcf109f68f322bf112c7604f2d950303f00 (diff)
parent4fe56e80825b47083100b2a98843df98fc7d4f07 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull second round of VFS updates from Al Viro: "Assorted fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: xtensa simdisk: fix braino in "xtensa simdisk: switch to proc_create_data()" hostfs: use kmalloc instead of kzalloc hostfs: move HOSTFS_SUPER_MAGIC to <linux/magic.h> hostfs: remove "will unlock" comment vfs: use list_move instead of list_del/list_add proc_devtree: Replace include linux/module.h with linux/export.h create_mnt_ns: unidiomatic use of list_add() fs: remove dentry_lru_prune() Removed unused typedef to avoid "unused local typedef" warnings. kill fs/read_write.h fs: Fix hang with BSD accounting on frozen filesystem sun3_scsi: add ->show_info() nubus: Kill nubus_proc_detach_device() more mode_t whack-a-mole... do_coredump(): don't wait for thaw if coredump has already been interrupted do_mount(): fix a leak introduced in 3.9 ("mount: consolidate permission checks")
Diffstat (limited to 'include')
-rw-r--r--include/linux/fs.h7
-rw-r--r--include/linux/nubus.h1
-rw-r--r--include/uapi/linux/magic.h1
3 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index e8cd6b839675..b5a24ba83b6f 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2227,6 +2227,13 @@ static inline void file_start_write(struct file *file)
__sb_start_write(file_inode(file)->i_sb, SB_FREEZE_WRITE, true);
}
+static inline bool file_start_write_trylock(struct file *file)
+{
+ if (!S_ISREG(file_inode(file)->i_mode))
+ return true;
+ return __sb_start_write(file_inode(file)->i_sb, SB_FREEZE_WRITE, false);
+}
+
static inline void file_end_write(struct file *file)
{
if (!S_ISREG(file_inode(file)->i_mode))
diff --git a/include/linux/nubus.h b/include/linux/nubus.h
index b3740527571a..6165b2c62040 100644
--- a/include/linux/nubus.h
+++ b/include/linux/nubus.h
@@ -87,7 +87,6 @@ static inline void nubus_proc_init(void) {}
#endif
int get_nubus_list(char *buf);
int nubus_proc_attach_device(struct nubus_dev *dev);
-int nubus_proc_detach_device(struct nubus_dev *dev);
/* If we need more precision we can add some more of these */
struct nubus_dev* nubus_find_device(unsigned short category,
unsigned short type,
diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h
index 249df3720be2..2944278a8ba7 100644
--- a/include/uapi/linux/magic.h
+++ b/include/uapi/linux/magic.h
@@ -30,6 +30,7 @@
#define JFFS2_SUPER_MAGIC 0x72b6
#define PSTOREFS_MAGIC 0x6165676C
#define EFIVARFS_MAGIC 0xde5e81e4
+#define HOSTFS_SUPER_MAGIC 0x00c0ffee
#define MINIX_SUPER_MAGIC 0x137F /* minix v1 fs, 14 char names */
#define MINIX_SUPER_MAGIC2 0x138F /* minix v1 fs, 30 char names */