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bcachefs: Check for ERR_PTR() from filemap_lock_folio()

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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2023-06-21 00:31:49 -04:00
parent 1bb3c2a974
commit b6898917f2
1 changed files with 5 additions and 5 deletions
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10
fs/bcachefs/fs-io.c
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@ -124,7 +124,7 @@ static int filemap_get_contig_folios_d(struct address_space *mapping,
break;
f = __filemap_get_folio(mapping, pos >> PAGE_SHIFT, fgp_flags, gfp);
if (!f)
if (IS_ERR_OR_NULL(f))
break;
BUG_ON(folios->nr && folio_pos(f) != pos);
@ -1764,7 +1764,7 @@ int bch2_write_begin(struct file *file, struct address_space *mapping,
folio = __filemap_get_folio(mapping, pos >> PAGE_SHIFT,
FGP_LOCK|FGP_WRITE|FGP_CREAT|FGP_STABLE,
mapping_gfp_mask(mapping));
if (!folio)
if (IS_ERR_OR_NULL(folio))
goto err_unlock;
if (folio_test_uptodate(folio))
@ -2852,7 +2852,7 @@ static int __bch2_truncate_folio(struct bch_inode_info *inode,
u64 end_pos;
folio = filemap_lock_folio(mapping, index);
if (!folio) {
if (IS_ERR_OR_NULL(folio)) {
/*
* XXX: we're doing two index lookups when we end up reading the
* folio
@ -2865,7 +2865,7 @@ static int __bch2_truncate_folio(struct bch_inode_info *inode,
folio = __filemap_get_folio(mapping, index,
FGP_LOCK|FGP_CREAT, GFP_KERNEL);
if (unlikely(!folio)) {
if (unlikely(IS_ERR_OR_NULL(folio))) {
ret = -ENOMEM;
goto out;
}
@ -3788,7 +3788,7 @@ static bool folio_hole_offset(struct address_space *mapping, loff_t *offset)
bool ret = true;
folio = filemap_lock_folio(mapping, *offset >> PAGE_SHIFT);
if (!folio)
if (IS_ERR_OR_NULL(folio))
return true;
s = bch2_folio(folio);