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 /fs | |
parent | 3309dd04cbcd2cdad168485af5cf3576b5051e49 (diff) | |
download | op-kernel-dev-2ba48ce513c4e545318d22b138861d5876edf906.zip op-kernel-dev-2ba48ce513c4e545318d22b138861d5876edf906.tar.gz |
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 'fs')
-rw-r--r-- | fs/aio.c | 2 | ||||
-rw-r--r-- | fs/btrfs/file.c | 2 | ||||
-rw-r--r-- | fs/ceph/file.c | 8 | ||||
-rw-r--r-- | fs/ext4/file.c | 4 | ||||
-rw-r--r-- | fs/fuse/file.c | 2 | ||||
-rw-r--r-- | fs/gfs2/file.c | 2 | ||||
-rw-r--r-- | fs/nfs/file.c | 6 | ||||
-rw-r--r-- | fs/ocfs2/file.c | 10 | ||||
-rw-r--r-- | fs/xfs/xfs_file.c | 4 |
9 files changed, 20 insertions, 20 deletions
@@ -1502,7 +1502,7 @@ static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb, } req->common.ki_pos = iocb->aio_offset; req->common.ki_complete = aio_complete; - req->common.ki_flags = 0; + req->common.ki_flags = iocb_flags(req->common.ki_filp); if (iocb->aio_flags & IOCB_FLAG_RESFD) { /* diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index c64d11c..faa7d39 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1794,7 +1794,7 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb, if (sync) atomic_inc(&BTRFS_I(inode)->sync_writers); - if (file->f_flags & O_DIRECT) { + if (iocb->ki_flags & IOCB_DIRECT) { num_written = __btrfs_direct_write(iocb, from, pos); } else { num_written = __btrfs_buffered_write(file, from, pos); diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 3f0b933..b9b8eb2 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -457,7 +457,7 @@ static ssize_t ceph_sync_read(struct kiocb *iocb, struct iov_iter *i, if (ret < 0) return ret; - if (file->f_flags & O_DIRECT) { + if (iocb->ki_flags & IOCB_DIRECT) { while (iov_iter_count(i)) { size_t start; ssize_t n; @@ -828,7 +828,7 @@ again: return ret; if ((got & (CEPH_CAP_FILE_CACHE|CEPH_CAP_FILE_LAZYIO)) == 0 || - (iocb->ki_filp->f_flags & O_DIRECT) || + (iocb->ki_flags & IOCB_DIRECT) || (fi->flags & CEPH_F_SYNC)) { dout("aio_sync_read %p %llx.%llx %llu~%u got cap refs on %s\n", @@ -995,12 +995,12 @@ retry_snap: inode, ceph_vinop(inode), pos, count, ceph_cap_string(got)); if ((got & (CEPH_CAP_FILE_BUFFER|CEPH_CAP_FILE_LAZYIO)) == 0 || - (file->f_flags & O_DIRECT) || (fi->flags & CEPH_F_SYNC)) { + (iocb->ki_flags & IOCB_DIRECT) || (fi->flags & CEPH_F_SYNC)) { struct iov_iter data; mutex_unlock(&inode->i_mutex); /* we might need to revert back to that point */ data = *from; - if (file->f_flags & O_DIRECT) + if (iocb->ki_flags & IOCB_DIRECT) written = ceph_sync_direct_write(iocb, &data, pos); else written = ceph_sync_write(iocb, &data, pos); diff --git a/fs/ext4/file.c b/fs/ext4/file.c index c10785f..53bbc0b 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -95,7 +95,7 @@ ext4_file_write_iter(struct kiocb *iocb, struct iov_iter *from) struct inode *inode = file_inode(iocb->ki_filp); struct mutex *aio_mutex = NULL; struct blk_plug plug; - int o_direct = io_is_direct(file); + int o_direct = iocb->ki_flags & IOCB_DIRECT; int overwrite = 0; ssize_t ret; @@ -106,7 +106,7 @@ ext4_file_write_iter(struct kiocb *iocb, struct iov_iter *from) if (o_direct && ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS) && !is_sync_kiocb(iocb) && - (file->f_flags & O_APPEND || + (iocb->ki_flags & IOCB_APPEND || ext4_unaligned_aio(inode, from, iocb->ki_pos))) { aio_mutex = ext4_aio_mutex(inode); mutex_lock(aio_mutex); diff --git a/fs/fuse/file.c b/fs/fuse/file.c index b86c8e0..5ef05b5 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -1177,7 +1177,7 @@ static ssize_t fuse_file_write_iter(struct kiocb *iocb, struct iov_iter *from) if (err) goto out; - if (file->f_flags & O_DIRECT) { + if (iocb->ki_flags & IOCB_DIRECT) { loff_t pos = iocb->ki_pos; written = generic_file_direct_write(iocb, from, pos); if (written < 0 || !iov_iter_count(from)) diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index 614bb42..08329af 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -709,7 +709,7 @@ static ssize_t gfs2_file_write_iter(struct kiocb *iocb, struct iov_iter *from) gfs2_size_hint(file, iocb->ki_pos, iov_iter_count(from)); - if (file->f_flags & O_APPEND) { + if (iocb->ki_flags & IOCB_APPEND) { struct gfs2_holder gh; ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &gh); diff --git a/fs/nfs/file.c b/fs/nfs/file.c index f6a3ade..14364dc 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -170,7 +170,7 @@ nfs_file_read(struct kiocb *iocb, struct iov_iter *to) struct inode *inode = file_inode(iocb->ki_filp); ssize_t result; - if (iocb->ki_filp->f_flags & O_DIRECT) + if (iocb->ki_flags & IOCB_DIRECT) return nfs_file_direct_read(iocb, to, iocb->ki_pos); dprintk("NFS: read(%pD2, %zu@%lu)\n", @@ -680,7 +680,7 @@ ssize_t nfs_file_write(struct kiocb *iocb, struct iov_iter *from) if (result) return result; - if (file->f_flags & O_DIRECT) + if (iocb->ki_flags & IOCB_DIRECT) return nfs_file_direct_write(iocb, from, pos); dprintk("NFS: write(%pD2, %zu@%Ld)\n", @@ -692,7 +692,7 @@ ssize_t nfs_file_write(struct kiocb *iocb, struct iov_iter *from) /* * O_APPEND implies that we must revalidate the file length. */ - if (file->f_flags & O_APPEND) { + if (iocb->ki_flags & IOCB_APPEND) { result = nfs_revalidate_file_size(inode, file); if (result) goto out; diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index b93919f..cd37f6c 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -2274,8 +2274,8 @@ static ssize_t ocfs2_file_write_iter(struct kiocb *iocb, if (count == 0) return 0; - appending = file->f_flags & O_APPEND ? 1 : 0; - direct_io = file->f_flags & O_DIRECT ? 1 : 0; + appending = iocb->ki_flags & IOCB_APPEND ? 1 : 0; + direct_io = iocb->ki_flags & IOCB_DIRECT ? 1 : 0; mutex_lock(&inode->i_mutex); @@ -2429,7 +2429,7 @@ relock: out_dio: /* buffered aio wouldn't have proper lock coverage today */ - BUG_ON(ret == -EIOCBQUEUED && !(file->f_flags & O_DIRECT)); + BUG_ON(ret == -EIOCBQUEUED && !(iocb->ki_flags & IOCB_DIRECT)); if (unlikely(written <= 0)) goto no_sync; @@ -2546,7 +2546,7 @@ static ssize_t ocfs2_file_read_iter(struct kiocb *iocb, * buffered reads protect themselves in ->readpage(). O_DIRECT reads * need locks to protect pending reads from racing with truncate. */ - if (filp->f_flags & O_DIRECT) { + if (iocb->ki_flags & IOCB_DIRECT) { have_alloc_sem = 1; ocfs2_iocb_set_sem_locked(iocb); @@ -2580,7 +2580,7 @@ static ssize_t ocfs2_file_read_iter(struct kiocb *iocb, trace_generic_file_aio_read_ret(ret); /* buffered aio wouldn't have proper lock coverage today */ - BUG_ON(ret == -EIOCBQUEUED && !(filp->f_flags & O_DIRECT)); + BUG_ON(ret == -EIOCBQUEUED && !(iocb->ki_flags & IOCB_DIRECT)); /* see ocfs2_file_write_iter */ if (ret == -EIOCBQUEUED || !ocfs2_iocb_is_rw_locked(iocb)) { diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 28d1578..1f12ad0 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -279,7 +279,7 @@ xfs_file_read_iter( XFS_STATS_INC(xs_read_calls); - if (unlikely(file->f_flags & O_DIRECT)) + if (unlikely(iocb->ki_flags & IOCB_DIRECT)) ioflags |= XFS_IO_ISDIRECT; if (file->f_mode & FMODE_NOCMTIME) ioflags |= XFS_IO_INVIS; @@ -804,7 +804,7 @@ xfs_file_write_iter( if (XFS_FORCED_SHUTDOWN(ip->i_mount)) return -EIO; - if (unlikely(file->f_flags & O_DIRECT)) + if (unlikely(iocb->ki_flags & IOCB_DIRECT)) ret = xfs_file_dio_aio_write(iocb, from); else ret = xfs_file_buffered_aio_write(iocb, from); |