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vma: Don't lookup file_desc for vma twice

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We do it first -- on collect, second -- on restore. The
2nd lookup is excessive, we can put fd pointer on vm_area
at lookup and reuse one later.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Pavel Emelyanov
2014-02-07 13:51:29 +04:00
parent fd41201975
commit dc7abdfb92
8 changed files with 37 additions and 20 deletions
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include/files.h
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@@ -145,7 +145,7 @@ extern int prepare_fds(struct pstree_item *me);
extern int prepare_fd_pid(struct pstree_item *me);
extern int prepare_ctl_tty(int pid, struct rst_info *rst_info, u32 ctl_tty_id);
extern int prepare_shared_fdinfo(void);
extern int get_filemap_fd(int pid, VmaEntry *vma_entry);
extern int get_filemap_fd(struct vma_area *);
extern int prepare_fs(int pid);
extern int set_fd_flags(int fd, int flags);