diff options
author | David S. Miller <davem@davemloft.net> | 2010-02-28 19:23:06 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2010-02-28 19:23:06 -0800 |
commit | 47871889c601d8199c51a4086f77eebd77c29b0b (patch) | |
tree | 40cdcac3bff0ee40cc33dcca61d0577cdf965f77 /include/linux/fdtable.h | |
parent | c16cc0b464b8876cfd57ce1c1dbcb6f9a6a0bce3 (diff) | |
parent | 30ff056c42c665b9ea535d8515890857ae382540 (diff) |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
drivers/firmware/iscsi_ibft.c
Diffstat (limited to 'include/linux/fdtable.h')
-rw-r--r-- | include/linux/fdtable.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h index a2ec74bc481..013dc529e95 100644 --- a/include/linux/fdtable.h +++ b/include/linux/fdtable.h @@ -57,7 +57,14 @@ struct files_struct { struct file * fd_array[NR_OPEN_DEFAULT]; }; -#define files_fdtable(files) (rcu_dereference((files)->fdt)) +#define rcu_dereference_check_fdtable(files, fdtfd) \ + (rcu_dereference_check((fdtfd), \ + rcu_read_lock_held() || \ + lockdep_is_held(&(files)->file_lock) || \ + atomic_read(&(files)->count) == 1)) + +#define files_fdtable(files) \ + (rcu_dereference_check_fdtable((files), (files)->fdt)) struct file_operations; struct vfsmount; @@ -78,7 +85,7 @@ static inline struct file * fcheck_files(struct files_struct *files, unsigned in struct fdtable *fdt = files_fdtable(files); if (fd < fdt->max_fds) - file = rcu_dereference(fdt->fd[fd]); + file = rcu_dereference_check_fdtable(files, fdt->fd[fd]); return file; } |