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fd: sprinkle __read_mostly and __exclusive_cache_line

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This commit is contained in:
Mateusz Guzik 2017-01-30 03:07:32 +00:00
parent 13157b2baf
commit 3071469d57
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=312980
1 changed files with 4 additions and 4 deletions
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8
sys/kern/kern_descrip.c
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@ -97,8 +97,8 @@ MALLOC_DEFINE(M_FILECAPS, "filecaps", "descriptor capabilities");
MALLOC_DECLARE(M_FADVISE);
static uma_zone_t file_zone;
static uma_zone_t filedesc0_zone;
static __read_mostly uma_zone_t file_zone;
static __read_mostly uma_zone_t filedesc0_zone;
static int closefp(struct filedesc *fdp, int fd, struct file *fp,
struct thread *td, int holdleaders);
@ -168,9 +168,9 @@ struct filedesc0 {
/*
* Descriptor management.
*/
volatile int openfiles; /* actual number of open files */
volatile int __exclusive_cache_line openfiles; /* actual number of open files */
struct mtx sigio_lock; /* mtx to protect pointers to sigio */
void (*mq_fdclose)(struct thread *td, int fd, struct file *fp);
void __read_mostly (*mq_fdclose)(struct thread *td, int fd, struct file *fp);
/*
* If low >= size, just return low. Otherwise find the first zero bit in the