diff options
author | Tony Lindgren <tony@atomide.com> | 2010-03-02 01:19:05 +0300 |
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committer | Tony Lindgren <tony@atomide.com> | 2010-03-02 01:19:05 +0300 |
commit | d702d12167a2c05a346f49aac7a311d597762495 (patch) | |
tree | baae42c299cce34d6df24b5d01f8b1d0b481bd9a /include/linux/fdtable.h | |
parent | 9418c65f9bd861d0f7e39aab9cfb3aa6f2275d11 (diff) | |
parent | ac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9 (diff) | |
download | linux-d702d12167a2c05a346f49aac7a311d597762495.tar.xz |
Merge with mainline to remove plat-omap/Kconfig conflict
Conflicts:
arch/arm/plat-omap/Kconfig
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 a2ec74bc4812..013dc529e95f 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; } |