| Message ID | 20230524063810.1595778-2-hch@lst.de (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [01/11] backing_dev: remove current->backing_dev_info | expand |
On Wed, May 24, 2023 at 08:38:00AM +0200, Christoph Hellwig wrote: > The last user of current->backing_dev_info disappeared in commit > b9b1335e6403 ("remove bdi_congested() and wb_congested() and related > functions"). Remove the field and all assignments to it. > > Signed-off-by: Christoph Hellwig <hch@lst.de> Yay code removal!!!! :) Reviewed-by: Darrick J. Wong <djwong@kernel.org> --D > --- > fs/btrfs/file.c | 6 +----- > fs/ceph/file.c | 4 ---- > fs/ext4/file.c | 2 -- > fs/f2fs/file.c | 2 -- > fs/fuse/file.c | 4 ---- > fs/gfs2/file.c | 2 -- > fs/nfs/file.c | 5 +---- > fs/ntfs/file.c | 2 -- > fs/ntfs3/file.c | 3 --- > fs/xfs/xfs_file.c | 4 ---- > include/linux/sched.h | 3 --- > mm/filemap.c | 3 --- > 12 files changed, 2 insertions(+), 38 deletions(-) > > diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c > index f649647392e0e4..ecd43ab66fa6c7 100644 > --- a/fs/btrfs/file.c > +++ b/fs/btrfs/file.c > @@ -1145,7 +1145,6 @@ static int btrfs_write_check(struct kiocb *iocb, struct iov_iter *from, > !(BTRFS_I(inode)->flags & (BTRFS_INODE_NODATACOW | BTRFS_INODE_PREALLOC))) > return -EAGAIN; > > - current->backing_dev_info = inode_to_bdi(inode); > ret = file_remove_privs(file); > if (ret) > return ret; > @@ -1165,10 +1164,8 @@ static int btrfs_write_check(struct kiocb *iocb, struct iov_iter *from, > loff_t end_pos = round_up(pos + count, fs_info->sectorsize); > > ret = btrfs_cont_expand(BTRFS_I(inode), oldsize, end_pos); > - if (ret) { > - current->backing_dev_info = NULL; > + if (ret) > return ret; > - } > } > > return 0; > @@ -1689,7 +1686,6 @@ ssize_t btrfs_do_write_iter(struct kiocb *iocb, struct iov_iter *from, > if (sync) > atomic_dec(&inode->sync_writers); > > - current->backing_dev_info = NULL; > return num_written; > } > > diff --git a/fs/ceph/file.c b/fs/ceph/file.c > index f4d8bf7dec88a8..c8ef72f723badd 100644 > --- a/fs/ceph/file.c > +++ b/fs/ceph/file.c > @@ -1791,9 +1791,6 @@ static ssize_t ceph_write_iter(struct kiocb *iocb, struct iov_iter *from) > else > ceph_start_io_write(inode); > > - /* We can write back this queue in page reclaim */ > - current->backing_dev_info = inode_to_bdi(inode); > - > if (iocb->ki_flags & IOCB_APPEND) { > err = ceph_do_getattr(inode, CEPH_STAT_CAP_SIZE, false); > if (err < 0) > @@ -1940,7 +1937,6 @@ static ssize_t ceph_write_iter(struct kiocb *iocb, struct iov_iter *from) > ceph_end_io_write(inode); > out_unlocked: > ceph_free_cap_flush(prealloc_cf); > - current->backing_dev_info = NULL; > return written ? written : err; > } > > diff --git a/fs/ext4/file.c b/fs/ext4/file.c > index d101b3b0c7dad8..bc430270c23c19 100644 > --- a/fs/ext4/file.c > +++ b/fs/ext4/file.c > @@ -285,9 +285,7 @@ static ssize_t ext4_buffered_write_iter(struct kiocb *iocb, > if (ret <= 0) > goto out; > > - current->backing_dev_info = inode_to_bdi(inode); > ret = generic_perform_write(iocb, from); > - current->backing_dev_info = NULL; > > out: > inode_unlock(inode); > diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c > index 5ac53d2627d20d..4f423d367a44b9 100644 > --- a/fs/f2fs/file.c > +++ b/fs/f2fs/file.c > @@ -4517,9 +4517,7 @@ static ssize_t f2fs_buffered_write_iter(struct kiocb *iocb, > if (iocb->ki_flags & IOCB_NOWAIT) > return -EOPNOTSUPP; > > - current->backing_dev_info = inode_to_bdi(inode); > ret = generic_perform_write(iocb, from); > - current->backing_dev_info = NULL; > > if (ret > 0) { > iocb->ki_pos += ret; > diff --git a/fs/fuse/file.c b/fs/fuse/file.c > index 89d97f6188e05e..97d435874b14aa 100644 > --- a/fs/fuse/file.c > +++ b/fs/fuse/file.c > @@ -1362,9 +1362,6 @@ static ssize_t fuse_cache_write_iter(struct kiocb *iocb, struct iov_iter *from) > writethrough: > inode_lock(inode); > > - /* We can write back this queue in page reclaim */ > - current->backing_dev_info = inode_to_bdi(inode); > - > err = generic_write_checks(iocb, from); > if (err <= 0) > goto out; > @@ -1409,7 +1406,6 @@ static ssize_t fuse_cache_write_iter(struct kiocb *iocb, struct iov_iter *from) > iocb->ki_pos += written; > } > out: > - current->backing_dev_info = NULL; > inode_unlock(inode); > if (written > 0) > written = generic_write_sync(iocb, written); > diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c > index 300844f50dcd28..904a0d6ac1a1a9 100644 > --- a/fs/gfs2/file.c > +++ b/fs/gfs2/file.c > @@ -1041,11 +1041,9 @@ static ssize_t gfs2_file_buffered_write(struct kiocb *iocb, > goto out_unlock; > } > > - current->backing_dev_info = inode_to_bdi(inode); > pagefault_disable(); > ret = iomap_file_buffered_write(iocb, from, &gfs2_iomap_ops); > pagefault_enable(); > - current->backing_dev_info = NULL; > if (ret > 0) { > iocb->ki_pos += ret; > written += ret; > diff --git a/fs/nfs/file.c b/fs/nfs/file.c > index f0edf5a36237d1..665ce3fc62eaf4 100644 > --- a/fs/nfs/file.c > +++ b/fs/nfs/file.c > @@ -648,11 +648,8 @@ ssize_t nfs_file_write(struct kiocb *iocb, struct iov_iter *from) > since = filemap_sample_wb_err(file->f_mapping); > nfs_start_io_write(inode); > result = generic_write_checks(iocb, from); > - if (result > 0) { > - current->backing_dev_info = inode_to_bdi(inode); > + if (result > 0) > result = generic_perform_write(iocb, from); > - current->backing_dev_info = NULL; > - } > nfs_end_io_write(inode); > if (result <= 0) > goto out; > diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c > index c481b14e4fd989..e296f804a9c442 100644 > --- a/fs/ntfs/file.c > +++ b/fs/ntfs/file.c > @@ -1911,11 +1911,9 @@ static ssize_t ntfs_file_write_iter(struct kiocb *iocb, struct iov_iter *from) > > inode_lock(vi); > /* We can write back this queue in page reclaim. */ > - current->backing_dev_info = inode_to_bdi(vi); > err = ntfs_prepare_file_for_write(iocb, from); > if (iov_iter_count(from) && !err) > written = ntfs_perform_write(file, from, iocb->ki_pos); > - current->backing_dev_info = NULL; > inode_unlock(vi); > iocb->ki_pos += written; > if (likely(written > 0)) > diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c > index 9a3d55c367d920..86d16a2c8339ca 100644 > --- a/fs/ntfs3/file.c > +++ b/fs/ntfs3/file.c > @@ -820,7 +820,6 @@ static ssize_t ntfs_compress_write(struct kiocb *iocb, struct iov_iter *from) > if (!pages) > return -ENOMEM; > > - current->backing_dev_info = inode_to_bdi(inode); > err = file_remove_privs(file); > if (err) > goto out; > @@ -993,8 +992,6 @@ static ssize_t ntfs_compress_write(struct kiocb *iocb, struct iov_iter *from) > out: > kfree(pages); > > - current->backing_dev_info = NULL; > - > if (err < 0) > return err; > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index aede746541f8ae..431c3fd0e2b598 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -717,9 +717,6 @@ xfs_file_buffered_write( > if (ret) > goto out; > > - /* We can write back this queue in page reclaim */ > - current->backing_dev_info = inode_to_bdi(inode); > - > trace_xfs_file_buffered_write(iocb, from); > ret = iomap_file_buffered_write(iocb, from, > &xfs_buffered_write_iomap_ops); > @@ -753,7 +750,6 @@ xfs_file_buffered_write( > goto write_retry; > } > > - current->backing_dev_info = NULL; > out: > if (iolock) > xfs_iunlock(ip, iolock); > diff --git a/include/linux/sched.h b/include/linux/sched.h > index eed5d65b8d1f4d..54780571fe9a07 100644 > --- a/include/linux/sched.h > +++ b/include/linux/sched.h > @@ -41,7 +41,6 @@ > > /* task_struct member predeclarations (sorted alphabetically): */ > struct audit_context; > -struct backing_dev_info; > struct bio_list; > struct blk_plug; > struct bpf_local_storage; > @@ -1186,8 +1185,6 @@ struct task_struct { > /* VM state: */ > struct reclaim_state *reclaim_state; > > - struct backing_dev_info *backing_dev_info; > - > struct io_context *io_context; > > #ifdef CONFIG_COMPACTION > diff --git a/mm/filemap.c b/mm/filemap.c > index b4c9bd368b7e58..33b54660ad2b39 100644 > --- a/mm/filemap.c > +++ b/mm/filemap.c > @@ -3991,8 +3991,6 @@ ssize_t __generic_file_write_iter(struct kiocb *iocb, struct iov_iter *from) > ssize_t err; > ssize_t status; > > - /* We can write back this queue in page reclaim */ > - current->backing_dev_info = inode_to_bdi(inode); > err = file_remove_privs(file); > if (err) > goto out; > @@ -4053,7 +4051,6 @@ ssize_t __generic_file_write_iter(struct kiocb *iocb, struct iov_iter *from) > iocb->ki_pos += written; > } > out: > - current->backing_dev_info = NULL; > return written ? written : err; > } > EXPORT_SYMBOL(__generic_file_write_iter); > -- > 2.39.2 >
On 5/24/23 08:38, Christoph Hellwig wrote: > The last user of current->backing_dev_info disappeared in commit > b9b1335e6403 ("remove bdi_congested() and wb_congested() and related > functions"). Remove the field and all assignments to it. > > Signed-off-by: Christoph Hellwig <hch@lst.de> > --- > fs/btrfs/file.c | 6 +----- > fs/ceph/file.c | 4 ---- > fs/ext4/file.c | 2 -- > fs/f2fs/file.c | 2 -- > fs/fuse/file.c | 4 ---- > fs/gfs2/file.c | 2 -- > fs/nfs/file.c | 5 +---- > fs/ntfs/file.c | 2 -- > fs/ntfs3/file.c | 3 --- > fs/xfs/xfs_file.c | 4 ---- > include/linux/sched.h | 3 --- > mm/filemap.c | 3 --- > 12 files changed, 2 insertions(+), 38 deletions(-) > Reviewed-by: Hannes Reinecke <hare@suse.de> Cheers, Hannes
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index f649647392e0e4..ecd43ab66fa6c7 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1145,7 +1145,6 @@ static int btrfs_write_check(struct kiocb *iocb, struct iov_iter *from, !(BTRFS_I(inode)->flags & (BTRFS_INODE_NODATACOW | BTRFS_INODE_PREALLOC))) return -EAGAIN; - current->backing_dev_info = inode_to_bdi(inode); ret = file_remove_privs(file); if (ret) return ret; @@ -1165,10 +1164,8 @@ static int btrfs_write_check(struct kiocb *iocb, struct iov_iter *from, loff_t end_pos = round_up(pos + count, fs_info->sectorsize); ret = btrfs_cont_expand(BTRFS_I(inode), oldsize, end_pos); - if (ret) { - current->backing_dev_info = NULL; + if (ret) return ret; - } } return 0; @@ -1689,7 +1686,6 @@ ssize_t btrfs_do_write_iter(struct kiocb *iocb, struct iov_iter *from, if (sync) atomic_dec(&inode->sync_writers); - current->backing_dev_info = NULL; return num_written; } diff --git a/fs/ceph/file.c b/fs/ceph/file.c index f4d8bf7dec88a8..c8ef72f723badd 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -1791,9 +1791,6 @@ static ssize_t ceph_write_iter(struct kiocb *iocb, struct iov_iter *from) else ceph_start_io_write(inode); - /* We can write back this queue in page reclaim */ - current->backing_dev_info = inode_to_bdi(inode); - if (iocb->ki_flags & IOCB_APPEND) { err = ceph_do_getattr(inode, CEPH_STAT_CAP_SIZE, false); if (err < 0) @@ -1940,7 +1937,6 @@ static ssize_t ceph_write_iter(struct kiocb *iocb, struct iov_iter *from) ceph_end_io_write(inode); out_unlocked: ceph_free_cap_flush(prealloc_cf); - current->backing_dev_info = NULL; return written ? written : err; } diff --git a/fs/ext4/file.c b/fs/ext4/file.c index d101b3b0c7dad8..bc430270c23c19 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -285,9 +285,7 @@ static ssize_t ext4_buffered_write_iter(struct kiocb *iocb, if (ret <= 0) goto out; - current->backing_dev_info = inode_to_bdi(inode); ret = generic_perform_write(iocb, from); - current->backing_dev_info = NULL; out: inode_unlock(inode); diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 5ac53d2627d20d..4f423d367a44b9 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -4517,9 +4517,7 @@ static ssize_t f2fs_buffered_write_iter(struct kiocb *iocb, if (iocb->ki_flags & IOCB_NOWAIT) return -EOPNOTSUPP; - current->backing_dev_info = inode_to_bdi(inode); ret = generic_perform_write(iocb, from); - current->backing_dev_info = NULL; if (ret > 0) { iocb->ki_pos += ret; diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 89d97f6188e05e..97d435874b14aa 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -1362,9 +1362,6 @@ static ssize_t fuse_cache_write_iter(struct kiocb *iocb, struct iov_iter *from) writethrough: inode_lock(inode); - /* We can write back this queue in page reclaim */ - current->backing_dev_info = inode_to_bdi(inode); - err = generic_write_checks(iocb, from); if (err <= 0) goto out; @@ -1409,7 +1406,6 @@ static ssize_t fuse_cache_write_iter(struct kiocb *iocb, struct iov_iter *from) iocb->ki_pos += written; } out: - current->backing_dev_info = NULL; inode_unlock(inode); if (written > 0) written = generic_write_sync(iocb, written); diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index 300844f50dcd28..904a0d6ac1a1a9 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -1041,11 +1041,9 @@ static ssize_t gfs2_file_buffered_write(struct kiocb *iocb, goto out_unlock; } - current->backing_dev_info = inode_to_bdi(inode); pagefault_disable(); ret = iomap_file_buffered_write(iocb, from, &gfs2_iomap_ops); pagefault_enable(); - current->backing_dev_info = NULL; if (ret > 0) { iocb->ki_pos += ret; written += ret; diff --git a/fs/nfs/file.c b/fs/nfs/file.c index f0edf5a36237d1..665ce3fc62eaf4 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -648,11 +648,8 @@ ssize_t nfs_file_write(struct kiocb *iocb, struct iov_iter *from) since = filemap_sample_wb_err(file->f_mapping); nfs_start_io_write(inode); result = generic_write_checks(iocb, from); - if (result > 0) { - current->backing_dev_info = inode_to_bdi(inode); + if (result > 0) result = generic_perform_write(iocb, from); - current->backing_dev_info = NULL; - } nfs_end_io_write(inode); if (result <= 0) goto out; diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c index c481b14e4fd989..e296f804a9c442 100644 --- a/fs/ntfs/file.c +++ b/fs/ntfs/file.c @@ -1911,11 +1911,9 @@ static ssize_t ntfs_file_write_iter(struct kiocb *iocb, struct iov_iter *from) inode_lock(vi); /* We can write back this queue in page reclaim. */ - current->backing_dev_info = inode_to_bdi(vi); err = ntfs_prepare_file_for_write(iocb, from); if (iov_iter_count(from) && !err) written = ntfs_perform_write(file, from, iocb->ki_pos); - current->backing_dev_info = NULL; inode_unlock(vi); iocb->ki_pos += written; if (likely(written > 0)) diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c index 9a3d55c367d920..86d16a2c8339ca 100644 --- a/fs/ntfs3/file.c +++ b/fs/ntfs3/file.c @@ -820,7 +820,6 @@ static ssize_t ntfs_compress_write(struct kiocb *iocb, struct iov_iter *from) if (!pages) return -ENOMEM; - current->backing_dev_info = inode_to_bdi(inode); err = file_remove_privs(file); if (err) goto out; @@ -993,8 +992,6 @@ static ssize_t ntfs_compress_write(struct kiocb *iocb, struct iov_iter *from) out: kfree(pages); - current->backing_dev_info = NULL; - if (err < 0) return err; diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index aede746541f8ae..431c3fd0e2b598 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -717,9 +717,6 @@ xfs_file_buffered_write( if (ret) goto out; - /* We can write back this queue in page reclaim */ - current->backing_dev_info = inode_to_bdi(inode); - trace_xfs_file_buffered_write(iocb, from); ret = iomap_file_buffered_write(iocb, from, &xfs_buffered_write_iomap_ops); @@ -753,7 +750,6 @@ xfs_file_buffered_write( goto write_retry; } - current->backing_dev_info = NULL; out: if (iolock) xfs_iunlock(ip, iolock); diff --git a/include/linux/sched.h b/include/linux/sched.h index eed5d65b8d1f4d..54780571fe9a07 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -41,7 +41,6 @@ /* task_struct member predeclarations (sorted alphabetically): */ struct audit_context; -struct backing_dev_info; struct bio_list; struct blk_plug; struct bpf_local_storage; @@ -1186,8 +1185,6 @@ struct task_struct { /* VM state: */ struct reclaim_state *reclaim_state; - struct backing_dev_info *backing_dev_info; - struct io_context *io_context; #ifdef CONFIG_COMPACTION diff --git a/mm/filemap.c b/mm/filemap.c index b4c9bd368b7e58..33b54660ad2b39 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -3991,8 +3991,6 @@ ssize_t __generic_file_write_iter(struct kiocb *iocb, struct iov_iter *from) ssize_t err; ssize_t status; - /* We can write back this queue in page reclaim */ - current->backing_dev_info = inode_to_bdi(inode); err = file_remove_privs(file); if (err) goto out; @@ -4053,7 +4051,6 @@ ssize_t __generic_file_write_iter(struct kiocb *iocb, struct iov_iter *from) iocb->ki_pos += written; } out: - current->backing_dev_info = NULL; return written ? written : err; } EXPORT_SYMBOL(__generic_file_write_iter);
The last user of current->backing_dev_info disappeared in commit b9b1335e6403 ("remove bdi_congested() and wb_congested() and related functions"). Remove the field and all assignments to it. Signed-off-by: Christoph Hellwig <hch@lst.de> --- fs/btrfs/file.c | 6 +----- fs/ceph/file.c | 4 ---- fs/ext4/file.c | 2 -- fs/f2fs/file.c | 2 -- fs/fuse/file.c | 4 ---- fs/gfs2/file.c | 2 -- fs/nfs/file.c | 5 +---- fs/ntfs/file.c | 2 -- fs/ntfs3/file.c | 3 --- fs/xfs/xfs_file.c | 4 ---- include/linux/sched.h | 3 --- mm/filemap.c | 3 --- 12 files changed, 2 insertions(+), 38 deletions(-)