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Use openat() helper intensively when opening /proc/pid/X files

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This allows us to get rid of open-coded "/proc/pid/X".

Based-on-patch-from: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Cyrill Gorcunov
2012-01-12 23:50:45 +04:00
parent b0a9533080
commit 995ef5eca3
6 changed files with 148 additions and 121 deletions
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10
include/util.h
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@@ -165,7 +165,7 @@ extern void printk_vma(struct vma_area *vma_area);
#define pr_info_siginfo(siginfo) printk_siginfo(siginfo)
extern int move_img_fd(int *img_fd, int want_fd);
extern int parse_maps(pid_t pid, struct list_head *vma_area_list, bool use_map_files);
extern int parse_maps(pid_t pid, int pid_dir, struct list_head *vma_area_list, bool use_map_files);
extern int close_safe(int *fd);
extern int reopen_fd_as_safe(int new_fd, int old_fd, bool allow_reuse_fd);
@@ -174,10 +174,10 @@ extern int reopen_fd_as_safe(int new_fd, int old_fd, bool allow_reuse_fd);
extern void hex_dump(void *addr, unsigned long len);
extern DIR *opendir_proc(char *fmt, ...);
extern FILE *fopen_proc(char *fmt, char *mode, ...);
extern FILE *fopen_fmt(char *fmt, char *mode, ...);
extern int open_fmt(char *fmt, int mode, ...);
int open_pid_proc(pid_t pid);
int open_proc(int pid_dir_fd, char *fmt, ...);
DIR *opendir_proc(int pid_dir_fd, char *fmt, ...);
FILE *fopen_proc(int pid_dir_fd, char *fmt, ...);
#define __xalloc(op, size, ...) \
({ \