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| author |   Gou Hao <gouhao@uniontech.com> | 2021-11-02 10:46:48 +0800 |
|---|---|---|
| committer |   Al Viro <viro@zeniv.linux.org.uk> | 2022-05-14 18:47:28 -0400 |
| commit | 81132a39c152ca09832b9e4cb748129cee5f55ec (patch) | |
| tree | c680492afc83599e9f91bc028f7ddd2736418d15 /include/linux/file.h | |
| parent | io_uring_enter(): don't leave f.flags uninitialized (diff) | |
| download | linux-dev-81132a39c152ca09832b9e4cb748129cee5f55ec.tar.xz linux-dev-81132a39c152ca09832b9e4cb748129cee5f55ec.zip | |
fs: remove fget_many and fput_many interface
These two interface were added in 091141a42 commit,
but now there is no place to call them.
The only user of fput/fget_many() was removed in commit
62906e89e63b ("io_uring: remove file batch-get optimisation").
A user of get_file_rcu_many() were removed in commit
f073531070d2 ("init: add an init_dup helper").
And replace atomic_long_sub/add to atomic_long_dec/inc
can improve performance.
Here are the test results of unixbench:
Cmd: ./Run -c 64 context1
Without patch:
System Benchmarks Partial Index BASELINE RESULT INDEX
Pipe-based Context Switching 4000.0 2798407.0 6996.0
========
System Benchmarks Index Score (Partial Only) 6996.0
With patch:
System Benchmarks Partial Index BASELINE RESULT INDEX
Pipe-based Context Switching 4000.0 3486268.8 8715.7
========
System Benchmarks Index Score (Partial Only) 8715.7
Signed-off-by: Gou Hao <gouhao@uniontech.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/file.h')
| -rw-r--r-- | include/linux/file.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/file.h b/include/linux/file.h index 51e830b4fe3a..39704eae83e2 100644 --- a/include/linux/file.h +++ b/include/linux/file.h @@ -14,7 +14,6 @@ struct file; extern void fput(struct file *); -extern void fput_many(struct file *, unsigned int); struct file_operations; struct task_struct; @@ -47,7 +46,6 @@ static inline void fdput(struct fd fd) } extern struct file *fget(unsigned int fd); -extern struct file *fget_many(unsigned int fd, unsigned int refs); extern struct file *fget_raw(unsigned int fd); extern struct file *fget_task(struct task_struct *task, unsigned int fd); extern unsigned long __fdget(unsigned int fd); |