diff options
Diffstat (limited to 'fs/bcachefs/fs-io-buffered.c')
| -rw-r--r-- | fs/bcachefs/fs-io-buffered.c | 41 |
1 files changed, 21 insertions, 20 deletions
diff --git a/fs/bcachefs/fs-io-buffered.c b/fs/bcachefs/fs-io-buffered.c index 54873ecc635c..cc33d763f722 100644 --- a/fs/bcachefs/fs-io-buffered.c +++ b/fs/bcachefs/fs-io-buffered.c @@ -678,8 +678,8 @@ int bch2_write_begin(struct file *file, struct address_space *mapping, bch2_pagecache_add_get(inode); folio = __filemap_get_folio(mapping, pos >> PAGE_SHIFT, - FGP_LOCK|FGP_WRITE|FGP_CREAT|FGP_STABLE, - mapping_gfp_mask(mapping)); + FGP_WRITEBEGIN | fgf_set_order(len), + mapping_gfp_mask(mapping)); if (IS_ERR_OR_NULL(folio)) goto err_unlock; @@ -820,9 +820,8 @@ static int __bch2_buffered_write(struct bch_inode_info *inode, darray_init(&fs); ret = bch2_filemap_get_contig_folios_d(mapping, pos, end, - FGP_LOCK|FGP_WRITE|FGP_STABLE|FGP_CREAT, - mapping_gfp_mask(mapping), - &fs); + FGP_WRITEBEGIN | fgf_set_order(len), + mapping_gfp_mask(mapping), &fs); if (ret) goto out; @@ -864,24 +863,26 @@ static int __bch2_buffered_write(struct bch_inode_info *inode, f_pos = pos; f_offset = pos - folio_pos(darray_first(fs)); darray_for_each(fs, fi) { + ssize_t f_reserved; + f = *fi; f_len = min(end, folio_end_pos(f)) - f_pos; + f_reserved = bch2_folio_reservation_get_partial(c, inode, f, &res, f_offset, f_len); + + if (unlikely(f_reserved != f_len)) { + if (f_reserved < 0) { + if (f == darray_first(fs)) { + ret = f_reserved; + goto out; + } + + folios_trunc(&fs, fi); + end = min(end, folio_end_pos(darray_last(fs))); + } else { + folios_trunc(&fs, fi + 1); + end = f_pos + f_reserved; + } - /* - * XXX: per POSIX and fstests generic/275, on -ENOSPC we're - * supposed to write as much as we have disk space for. - * - * On failure here we should still write out a partial page if - * we aren't completely out of disk space - we don't do that - * yet: - */ - ret = bch2_folio_reservation_get(c, inode, f, &res, f_offset, f_len); - if (unlikely(ret)) { - folios_trunc(&fs, fi); - if (!fs.nr) - goto out; - - end = min(end, folio_end_pos(darray_last(fs))); break; } |