diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/befs/debug.c | 1 | ||||
| -rw-r--r-- | fs/libfs.c | 16 | ||||
| -rw-r--r-- | fs/squashfs/export.c | 1 |
3 files changed, 18 insertions, 0 deletions
diff --git a/fs/befs/debug.c b/fs/befs/debug.c index b8e304a0661..622e73775c8 100644 --- a/fs/befs/debug.c +++ b/fs/befs/debug.c @@ -17,6 +17,7 @@ #include <linux/spinlock.h> #include <linux/kernel.h> #include <linux/fs.h> +#include <linux/slab.h> #endif /* __KERNEL__ */ diff --git a/fs/libfs.c b/fs/libfs.c index 4910a36f516..cd223190c4e 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -575,6 +575,21 @@ ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos, * possibly a read which collects the result - which is stored in a * file-local buffer. */ + +void simple_transaction_set(struct file *file, size_t n) +{ + struct simple_transaction_argresp *ar = file->private_data; + + BUG_ON(n > SIMPLE_TRANSACTION_LIMIT); + + /* + * The barrier ensures that ar->size will really remain zero until + * ar->data is ready for reading. + */ + smp_mb(); + ar->size = n; +} + char *simple_transaction_get(struct file *file, const char __user *buf, size_t size) { struct simple_transaction_argresp *ar; @@ -820,6 +835,7 @@ EXPORT_SYMBOL(simple_sync_file); EXPORT_SYMBOL(simple_unlink); EXPORT_SYMBOL(simple_read_from_buffer); EXPORT_SYMBOL(memory_read_from_buffer); +EXPORT_SYMBOL(simple_transaction_set); EXPORT_SYMBOL(simple_transaction_get); EXPORT_SYMBOL(simple_transaction_read); EXPORT_SYMBOL(simple_transaction_release); diff --git a/fs/squashfs/export.c b/fs/squashfs/export.c index 69e971d5ddc..2b1b8fe5e03 100644 --- a/fs/squashfs/export.c +++ b/fs/squashfs/export.c @@ -40,6 +40,7 @@ #include <linux/dcache.h> #include <linux/exportfs.h> #include <linux/zlib.h> +#include <linux/slab.h> #include "squashfs_fs.h" #include "squashfs_fs_sb.h" |