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From: Konstantin Komarovc <almaz.alexandrovich@paragon-software.com>
To: <ntfs3@lists.linux.dev>
Cc: <linux-kernel@vger.kernel.org>, <linux-fsdevel@vger.kernel.org>
Subject: [PATCH 09/16] fs/ntfs3: Correct use bh_read
Date: Wed, 6 Dec 2023 18:12:40 +0300	[thread overview]
Message-ID: <29a1087c-c903-488c-993a-2e3c23c2d4d2@paragon-software.com> (raw)
In-Reply-To: <00fd1558-fda5-421b-be43-7de69e32cb4e@paragon-software.com>


Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
---
  fs/ntfs3/file.c  | 19 +++++++++----------
  fs/ntfs3/inode.c |  7 +++----
  2 files changed, 12 insertions(+), 14 deletions(-)

diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
index a5a30a24ce5d..5691f04e6751 100644
--- a/fs/ntfs3/file.c
+++ b/fs/ntfs3/file.c
@@ -188,6 +188,7 @@ static int ntfs_zero_range(struct inode *inode, u64 
vbo, u64 vbo_to)
      u32 bh_next, bh_off, to;
      sector_t iblock;
      struct folio *folio;
+    bool dirty = false;

      for (; idx < idx_end; idx += 1, from = 0) {
          page_off = (loff_t)idx << PAGE_SHIFT;
@@ -223,29 +224,27 @@ static int ntfs_zero_range(struct inode *inode, 
u64 vbo, u64 vbo_to)
              /* Ok, it's mapped. Make sure it's up-to-date. */
              if (folio_test_uptodate(folio))
                  set_buffer_uptodate(bh);
-
-            if (!buffer_uptodate(bh)) {
-                err = bh_read(bh, 0);
-                if (err < 0) {
-                    folio_unlock(folio);
-                    folio_put(folio);
-                    goto out;
-                }
+            else if (bh_read(bh, 0) < 0) {
+                err = -EIO;
+                folio_unlock(folio);
+                folio_put(folio);
+                goto out;
              }

              mark_buffer_dirty(bh);
-
          } while (bh_off = bh_next, iblock += 1,
               head != (bh = bh->b_this_page));

          folio_zero_segment(folio, from, to);
+        dirty = true;

          folio_unlock(folio);
          folio_put(folio);
          cond_resched();
      }
  out:
-    mark_inode_dirty(inode);
+    if (dirty)
+        mark_inode_dirty(inode);
      return err;
  }

diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c
index fa6c7965473c..bba0208c4afd 100644
--- a/fs/ntfs3/inode.c
+++ b/fs/ntfs3/inode.c
@@ -345,9 +345,7 @@ static struct inode *ntfs_read_mft(struct inode *inode,
              inode->i_size = le16_to_cpu(rp.SymbolicLinkReparseBuffer
                                  .PrintNameLength) /
                      sizeof(u16);
-
              ni->i_valid = inode->i_size;
-
              /* Clear directory bit. */
              if (ni->ni_flags & NI_FLAG_DIR) {
                  indx_clear(&ni->dir);
@@ -653,9 +651,10 @@ static noinline int ntfs_get_block_vbo(struct inode 
*inode, u64 vbo,
              off = vbo & (PAGE_SIZE - 1);
              folio_set_bh(bh, folio, off);

-            err = bh_read(bh, 0);
-            if (err < 0)
+            if (bh_read(bh, 0) < 0) {
+                err = -EIO;
                  goto out;
+            }
              folio_zero_segment(folio, off + voff, off + block_size);
          }
      }
-- 
2.34.1


  parent reply	other threads:[~2023-12-06 15:12 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-06 15:08 [PATCH 00/16] fs/ntfs3: Bugfix and refactoring Konstantin Komarovc
2023-12-06 15:08 ` [PATCH 01/16] fs/ntfs3: Improve alternative boot processing Konstantin Komarovc
2023-12-06 15:09 ` [PATCH 02/16] fs/ntfs3: Modified fix directory element type detection Konstantin Komarovc
2023-12-06 15:10 ` [PATCH 03/16] fs/ntfs3: Improve ntfs_dir_count Konstantin Komarovc
2023-12-06 15:10 ` [PATCH 04/16] fs/ntfs3: Correct hard links updating when dealing with DOS neams Konstantin Komarovc
2023-12-06 15:11 ` [PATCH 05/16] fs/ntfs3: Print warning while fixing hard links count Konstantin Komarovc
2023-12-06 15:11 ` [PATCH 06/16] fs/ntfs3: Reduce stack usage Konstantin Komarovc
2023-12-06 15:12 ` [PATCH 07/16] fs/ntfs3: Fix multithreaded stress test Konstantin Komarovc
2023-12-06 15:12 ` [PATCH 08/16] fs/ntfs3: Fix detected field-spanning write (size 8) of single field "le->name" Konstantin Komarovc
2023-12-07  9:31   ` Geert Uytterhoeven
2023-12-06 15:12 ` Konstantin Komarovc [this message]
2023-12-06 15:12 ` [PATCH 10/16] fs/ntfs3: Add file_modified Konstantin Komarovc
2023-12-06 15:13 ` [PATCH 11/16] fs/ntfs3: Drop suid and sgid bits as a part of fpunch Konstantin Komarovc
2023-12-06 15:13 ` [PATCH 12/16] fs/ntfs3: Implement super_operations::shutdown Konstantin Komarovc
2023-12-06 15:13 ` [PATCH 13/16] fs/ntfs3: ntfs3_forced_shutdown use int instead of bool Konstantin Komarovc
2023-12-06 15:14 ` [PATCH 14/16] fs/ntfs3: Add and fix comments Konstantin Komarovc
2023-12-06 15:14 ` [PATCH 15/16] fs/ntfs3: Add NULL ptr dereference checking at the end of attr_allocate_frame() Konstantin Komarovc
2023-12-06 15:14 ` [PATCH 16/16] fs/ntfs3: Fix c/mtime typo Konstantin Komarovc

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