diff options
| -rw-r--r-- | fs/btrfs/send.c | 2 | ||||
| -rw-r--r-- | fs/btrfs/send.h | 6 |
2 files changed, 5 insertions, 3 deletions
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index 1c4b693ee4a3..80104b5af32f 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -7901,7 +7901,7 @@ long btrfs_ioctl_send(struct inode *inode, struct btrfs_ioctl_send_args *arg) if (sctx->proto >= 2) { u32 send_buf_num_pages; - sctx->send_max_size = ALIGN(SZ_16K + BTRFS_MAX_COMPRESSED, PAGE_SIZE); + sctx->send_max_size = BTRFS_SEND_BUF_SIZE_V2; sctx->send_buf = vmalloc(sctx->send_max_size); if (!sctx->send_buf) { ret = -ENOMEM; diff --git a/fs/btrfs/send.h b/fs/btrfs/send.h index f7585cfa7e52..4f5509cb1803 100644 --- a/fs/btrfs/send.h +++ b/fs/btrfs/send.h @@ -18,10 +18,12 @@ #endif /* - * In send stream v1, no command is larger than 64K. In send stream v2, no limit - * should be assumed. + * In send stream v1, no command is larger than 64K. In send stream v2, no + * limit should be assumed, the buffer size is set to be a header with + * compressed extent size. */ #define BTRFS_SEND_BUF_SIZE_V1 SZ_64K +#define BTRFS_SEND_BUF_SIZE_V2 ALIGN(SZ_16K + BTRFS_MAX_COMPRESSED, PAGE_SIZE) struct inode; struct btrfs_ioctl_send_args; |