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authorAl Viro <viro@zeniv.linux.org.uk>2014-03-04 14:54:22 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2014-03-10 11:44:42 -0400
commitbd2a31d522344b3ac2fb680bd2366e77a9bd8209 (patch)
treed08be6aea75b2f41bebf516bfc33187d0673bfce /include
parent00e188ef6a7e7bf2883bcffc30d89e98a0bb76b3 (diff)
downloadlinux-linaro-stable-bd2a31d522344b3ac2fb680bd2366e77a9bd8209.tar.gz
get rid of fget_light()
instead of returning the flags by reference, we can just have the low-level primitive return those in lower bits of unsigned long, with struct file * derived from the rest. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include')
-rw-r--r--include/linux/file.h21
-rw-r--r--include/linux/fs.h2
2 files changed, 12 insertions, 11 deletions
diff --git a/include/linux/file.h b/include/linux/file.h
index f2517fa2d610..4d69123377a2 100644
--- a/include/linux/file.h
+++ b/include/linux/file.h
@@ -40,23 +40,24 @@ static inline void fdput(struct fd fd)
}
extern struct file *fget(unsigned int fd);
-extern struct file *fget_light(unsigned int fd, int *fput_needed);
+extern struct file *fget_raw(unsigned int fd);
+extern unsigned long __fdget(unsigned int fd);
+extern unsigned long __fdget_raw(unsigned int fd);
+extern unsigned long __fdget_pos(unsigned int fd);
-static inline struct fd fdget(unsigned int fd)
+static inline struct fd __to_fd(unsigned long v)
{
- int b;
- struct file *f = fget_light(fd, &b);
- return (struct fd){f,b};
+ return (struct fd){(struct file *)(v & ~3),v & 3};
}
-extern struct file *fget_raw(unsigned int fd);
-extern struct file *fget_raw_light(unsigned int fd, int *fput_needed);
+static inline struct fd fdget(unsigned int fd)
+{
+ return __to_fd(__fdget(fd));
+}
static inline struct fd fdget_raw(unsigned int fd)
{
- int b;
- struct file *f = fget_raw_light(fd, &b);
- return (struct fd){f,b};
+ return __to_fd(__fdget_raw(fd));
}
extern int f_dupfd(unsigned int from, struct file *file, unsigned flags);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index ebfde04bca06..23b2a35d712e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -812,7 +812,7 @@ struct file {
#ifdef CONFIG_DEBUG_WRITECOUNT
unsigned long f_mnt_write_state;
#endif
-};
+} __attribute__((aligned(4))); /* lest something weird decides that 2 is OK */
struct file_handle {
__u32 handle_bytes;