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| author | Miklos Szeredi <mszeredi@redhat.com> | 2021-07-22 14:18:14 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2021-08-17 11:47:45 +0200 |
| commit | f945ca1963c8bd29471020d7c58c594ee7007006 (patch) | |
| tree | 454546b7f319a2fee61549e51b7843d10597db23 | |
| parent | d8991e8622e758b718e2e4291d31dd0bea4e14a4 (diff) | |
ovl: use kvalloc in xattr copy-up
Extended attributes are usually small, but could be up to 64k in size, so
use the most efficient method for doing the allocation.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
| -rw-r--r-- | fs/overlayfs/copy_up.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c index 9d8ebf0e7237..4e7d5bfa2949 100644 --- a/fs/overlayfs/copy_up.c +++ b/fs/overlayfs/copy_up.c @@ -63,7 +63,7 @@ int ovl_copy_xattr(struct super_block *sb, struct dentry *old, return list_size; } - buf = kzalloc(list_size, GFP_KERNEL); + buf = kvzalloc(list_size, GFP_KERNEL); if (!buf) return -ENOMEM; @@ -106,11 +106,12 @@ retry: if (size > value_size) { void *new; - new = krealloc(value, size, GFP_KERNEL); + new = kvmalloc(size, GFP_KERNEL); if (!new) { error = -ENOMEM; break; } + kvfree(value); value = new; value_size = size; goto retry; @@ -125,9 +126,9 @@ retry: error = 0; } } - kfree(value); + kvfree(value); out: - kfree(buf); + kvfree(buf); return error; } |