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| author | Theodore Ts'o <tytso@mit.edu> | 2013-07-15 00:09:37 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-07-15 00:09:37 -0400 |
| commit | c8e15130e1636f68d5165aa2605b8e9cba0f644c (patch) | |
| tree | 63136907d8f8c602a0ddfd9cc8861a05531d74d7 | |
| parent | 8acd5e9b1217e58a57124d9e225afa12efeae20d (diff) | |
| download | talos-obmc-linux-c8e15130e1636f68d5165aa2605b8e9cba0f644c.tar.gz talos-obmc-linux-c8e15130e1636f68d5165aa2605b8e9cba0f644c.zip | |
ext4: simplify calculation of blocks to free on error
In ext4_ext_map_blocks(), if we have successfully allocated the data
blocks, but then run into trouble inserting the extent into the extent
tree, most likely due to an ENOSPC condition, determine the arguments
to ext4_free_blocks() in a simpler way which is easier to prove to be
correct.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| -rw-r--r-- | fs/ext4/extents.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index f57cc0e7f1bc..593091537e76 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -4261,8 +4261,8 @@ got_allocated_blocks: /* not a good idea to call discard here directly, * but otherwise we'd need to call it every free() */ ext4_discard_preallocations(inode); - ext4_free_blocks(handle, inode, NULL, ext4_ext_pblock(&newex), - ext4_ext_get_actual_len(&newex), fb_flags); + ext4_free_blocks(handle, inode, NULL, newblock, + EXT4_C2B(sbi, allocated_clusters), fb_flags); goto out2; } |
