From 4d6a6a58ddf41a903a602ef3f4be07c66e4cfed0 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Fri, 17 Oct 2025 16:22:03 -0400 Subject: kern: tmpfs: Use real length for EOF tracking Use the actual amount of bytes inside the tmpfs entry for the length tracking. Signed-off-by: Ian Moffett --- src/sys/fs/tmpfs.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'src/sys') diff --git a/src/sys/fs/tmpfs.c b/src/sys/fs/tmpfs.c index c49dc93..63e6577 100644 --- a/src/sys/fs/tmpfs.c +++ b/src/sys/fs/tmpfs.c @@ -47,6 +47,7 @@ struct tmpfs_node { char name[TMPFS_NAMEMAX]; char *data; size_t len; + size_t real_len; int ref; TAILQ_ENTRY(tmpfs_node) link; }; @@ -93,6 +94,7 @@ tmpfs_new(const char *name, struct tmpfs_node **np_res) return -ENOMEM; } + np->real_len = 0; np->len = TMPFS_INIT_SIZE; np->ref = 1; memset(np->data, 0, TMPFS_INIT_SIZE); @@ -276,6 +278,7 @@ tmpfs_write(struct vop_rw_data *data) } } + np->real_len += len; node_len = np->len; dest = np->data + data->off; memcpy(dest, data->data, len); @@ -304,7 +307,7 @@ tmpfs_read(struct vop_rw_data *data) /* Return EOF if the offset is too far */ len = data->len; - if (data->off >= np->len) { + if (data->off >= np->real_len) { return 0; /* EOF */ } -- cgit v1.2.3