diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2015-04-09 13:52:01 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-04-11 22:30:22 -0400 |
| commit | 2ba48ce513c4e545318d22b138861d5876edf906 (patch) | |
| tree | 0e2a5130ead5c71f0b079b1acd620fba98f99256 /include/linux/fs.h | |
| parent | 3309dd04cbcd2cdad168485af5cf3576b5051e49 (diff) | |
mirror O_APPEND and O_DIRECT into iocb->ki_flags
... avoiding write_iter/fcntl races.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index b4aa400ac723..b1d7db28c13c 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -315,6 +315,8 @@ struct address_space; struct writeback_control; #define IOCB_EVENTFD (1 << 0) +#define IOCB_APPEND (1 << 1) +#define IOCB_DIRECT (1 << 2) struct kiocb { struct file *ki_filp; @@ -329,10 +331,13 @@ static inline bool is_sync_kiocb(struct kiocb *kiocb) return kiocb->ki_complete == NULL; } +static inline int iocb_flags(struct file *file); + static inline void init_sync_kiocb(struct kiocb *kiocb, struct file *filp) { *kiocb = (struct kiocb) { .ki_filp = filp, + .ki_flags = iocb_flags(filp), }; } @@ -2779,6 +2784,16 @@ static inline bool io_is_direct(struct file *filp) return (filp->f_flags & O_DIRECT) || IS_DAX(file_inode(filp)); } +static inline int iocb_flags(struct file *file) +{ + int res = 0; + if (file->f_flags & O_APPEND) + res |= IOCB_APPEND; + if (io_is_direct(file)) + res |= IOCB_DIRECT; + return res; +} + static inline ino_t parent_ino(struct dentry *dentry) { ino_t res; |