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Diffstat (limited to 'fs/ntfs/aops.c')
-rw-r--r--fs/ntfs/aops.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/fs/ntfs/aops.c b/fs/ntfs/aops.c
index 3a2e509c77c5..8946130c87ad 100644
--- a/fs/ntfs/aops.c
+++ b/fs/ntfs/aops.c
@@ -93,13 +93,11 @@ static void ntfs_end_buffer_async_read(struct buffer_head *bh, int uptodate)
ofs = 0;
if (file_ofs < init_size)
ofs = init_size - file_ofs;
- local_irq_save(flags);
kaddr = kmap_atomic(page);
memset(kaddr + bh_offset(bh) + ofs, 0,
bh->b_size - ofs);
flush_dcache_page(page);
kunmap_atomic(kaddr);
- local_irq_restore(flags);
}
} else {
clear_buffer_uptodate(bh);
@@ -146,13 +144,11 @@ static void ntfs_end_buffer_async_read(struct buffer_head *bh, int uptodate)
recs = PAGE_SIZE / rec_size;
/* Should have been verified before we got here... */
BUG_ON(!recs);
- local_irq_save(flags);
kaddr = kmap_atomic(page);
for (i = 0; i < recs; i++)
post_read_mst_fixup((NTFS_RECORD*)(kaddr +
i * rec_size), rec_size);
kunmap_atomic(kaddr);
- local_irq_restore(flags);
flush_dcache_page(page);
if (likely(page_uptodate && !PageError(page)))
SetPageUptodate(page);
@@ -926,7 +922,7 @@ static int ntfs_write_mst_block(struct page *page,
ntfs_volume *vol = ni->vol;
u8 *kaddr;
unsigned int rec_size = ni->itype.index.block_size;
- ntfs_inode *locked_nis[PAGE_SIZE / rec_size];
+ ntfs_inode *locked_nis[PAGE_SIZE / NTFS_BLOCK_SIZE];
struct buffer_head *bh, *head, *tbh, *rec_start_bh;
struct buffer_head *bhs[MAX_BUF_PER_PAGE];
runlist_element *rl;
@@ -935,6 +931,9 @@ static int ntfs_write_mst_block(struct page *page,
bool sync, is_mft, page_is_dirty, rec_is_dirty;
unsigned char bh_size_bits;
+ if (WARN_ON(rec_size < NTFS_BLOCK_SIZE))
+ return -EINVAL;
+
ntfs_debug("Entering for inode 0x%lx, attribute type 0x%x, page index "
"0x%lx.", vi->i_ino, ni->type, page->index);
BUG_ON(!NInoNonResident(ni));