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| author | Christoph Hellwig <hch@lst.de> | 2026-04-08 09:06:38 +0300 |
|---|---|---|
| committer | Tyler Hicks <code@tyhicks.com> | 2026-04-09 02:54:03 +0300 |
| commit | b19fe74e0fc970cef90bb78ddb473ae0356bce94 (patch) | |
| tree | 7fce1dd48514904eee11da7a810c29bfca73fd34 | |
| parent | b109187378615e683d8d8a24f4bc246bd3fb7b26 (diff) | |
| download | linux-b19fe74e0fc970cef90bb78ddb473ae0356bce94.tar.xz | |
ecryptfs: use ZERO_PAGE instead of allocating zeroed memory in truncate_upper
Use the existing pre-zeroed memory instead of allocating a new chunk.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Tyler Hicks <code@tyhicks.com>
| -rw-r--r-- | fs/ecryptfs/inode.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index 695573850569..daa63b7dd015 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -771,15 +771,8 @@ static int truncate_upper(struct dentry *dentry, struct iattr *ia, */ num_zeros = PAGE_SIZE - (ia->ia_size & ~PAGE_MASK); if (num_zeros) { - char *zeros_virt; - - zeros_virt = kzalloc(num_zeros, GFP_KERNEL); - if (!zeros_virt) { - rc = -ENOMEM; - goto out; - } - rc = ecryptfs_write(inode, zeros_virt, ia->ia_size, num_zeros); - kfree(zeros_virt); + rc = ecryptfs_write(inode, page_address(ZERO_PAGE(0)), + ia->ia_size, num_zeros); if (rc) { pr_err("Error attempting to zero out the remainder of the end page on reducing truncate; rc = [%d]\n", rc); |