lkml.org 
[lkml]   [2024]   [Apr]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
Subject[PATCH 08/11] fs/ntfs3: Always make file nonresident if fallocate (xfstest 438)
From
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
---
 fs/ntfs3/attrib.c  | 32 ++++++++++++++++++++++++++++++++
 fs/ntfs3/file.c    |  9 +++++++++
 fs/ntfs3/ntfs_fs.h |  1 +
 3 files changed, 42 insertions(+)

diff --git a/fs/ntfs3/attrib.c b/fs/ntfs3/attrib.c
index 7aadf5010999..aedae36b91d0 100644
--- a/fs/ntfs3/attrib.c
+++ b/fs/ntfs3/attrib.c
@@ -2558,3 +2558,35 @@ int attr_insert_range(struct ntfs_inode *ni, u64
vbo, u64 bytes)

     goto out;
 }
+
+/*
+ * attr_force_nonresident
+ *
+ * Convert default data attribute into non resident form.
+ */
+int attr_force_nonresident(struct ntfs_inode *ni)
+{
+    int err;
+    struct ATTRIB *attr;
+    struct ATTR_LIST_ENTRY *le = NULL;
+    struct mft_inode *mi;
+
+    attr = ni_find_attr(ni, NULL, &le, ATTR_DATA, NULL, 0, NULL, &mi);
+    if (!attr) {
+        ntfs_bad_inode(&ni->vfs_inode, "no data attribute");
+        return -ENOENT;
+    }
+
+    if (attr->non_res) {
+        /* Already non resident. */
+        return 0;
+    }
+
+    down_write(&ni->file.run_lock);
+    err = attr_make_nonresident(ni, attr, le, mi,
+                    le32_to_cpu(attr->res.data_size),
+                    &ni->file.run, &attr, NULL);
+    up_write(&ni->file.run_lock);
+
+    return err;
+}
\ No newline at end of file
diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
index 5418662c80d8..fce8ea098d60 100644
--- a/fs/ntfs3/file.c
+++ b/fs/ntfs3/file.c
@@ -578,6 +578,15 @@ static long ntfs_fallocate(struct file *file, int
mode, loff_t vbo, loff_t len)
         /* Check new size. */
         u8 cluster_bits = sbi->cluster_bits;

+        /* Be sure file is non resident. */
+        if (is_resident(ni)) {
+            ni_lock(ni);
+            err = attr_force_nonresident(ni);
+            ni_unlock(ni);
+            if (err)
+                goto out;
+        }
+
         /* generic/213: expected -ENOSPC instead of -EFBIG. */
         if (!is_supported_holes) {
             loff_t to_alloc = new_size - inode_get_bytes(inode);
diff --git a/fs/ntfs3/ntfs_fs.h b/fs/ntfs3/ntfs_fs.h
index 3db6a61f61dc..00dec0ec5648 100644
--- a/fs/ntfs3/ntfs_fs.h
+++ b/fs/ntfs3/ntfs_fs.h
@@ -452,6 +452,7 @@ int attr_allocate_frame(struct ntfs_inode *ni, CLST
frame, size_t compr_size,
 int attr_collapse_range(struct ntfs_inode *ni, u64 vbo, u64 bytes);
 int attr_insert_range(struct ntfs_inode *ni, u64 vbo, u64 bytes);
 int attr_punch_hole(struct ntfs_inode *ni, u64 vbo, u64 bytes, u32
*frame_size);
+int attr_force_nonresident(struct ntfs_inode *ni);

 /* Functions from attrlist.c */
 void al_destroy(struct ntfs_inode *ni);
--
2.34.1

\
 
 \ /
  Last update: 2024-04-17 15:08    [W:0.141 / U:0.932 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site