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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-17 10:55:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-17 10:55:51 -0700 |
| commit | 5b664cb235e97afbf34db9c4d77f08ebd725335e (patch) | |
| tree | 518540649c38342209790de8e0b575ac1a6fa722 /fs/ocfs2/stack_user.c | |
| parent | f39548a6ad1dbdfaab552419386ec5bb1d76fa0d (diff) | |
| parent | c0420ad2ca514551ca086510b0e7d17a05c70492 (diff) | |
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
[PATCH] ocfs2: fix oops in mmap_truncate testing
configfs: call drop_link() to cleanup after create_link() failure
configfs: Allow ->make_item() and ->make_group() to return detailed errors.
configfs: Fix failing mkdir() making racing rmdir() fail
configfs: Fix deadlock with racing rmdir() and rename()
configfs: Make configfs_new_dirent() return error code instead of NULL
configfs: Protect configfs_dirent s_links list mutations
configfs: Introduce configfs_dirent_lock
ocfs2: Don't snprintf() without a format.
ocfs2: Fix CONFIG_OCFS2_DEBUG_FS #ifdefs
ocfs2/net: Silence build warnings on sparc64
ocfs2: Handle error during journal load
ocfs2: Silence an error message in ocfs2_file_aio_read()
ocfs2: use simple_read_from_buffer()
ocfs2: fix printk format warnings with OCFS2_FS_STATS=n
[PATCH 2/2] ocfs2: Instrument fs cluster locks
[PATCH 1/2] ocfs2: Add CONFIG_OCFS2_FS_STATS config option
Diffstat (limited to 'fs/ocfs2/stack_user.c')
| -rw-r--r-- | fs/ocfs2/stack_user.c | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c index bd7e0f3acfc7..353fc35c6748 100644 --- a/fs/ocfs2/stack_user.c +++ b/fs/ocfs2/stack_user.c @@ -550,26 +550,17 @@ static ssize_t ocfs2_control_read(struct file *file, size_t count, loff_t *ppos) { - char *proto_string = OCFS2_CONTROL_PROTO; - size_t to_write = 0; - - if (*ppos >= OCFS2_CONTROL_PROTO_LEN) - return 0; - - to_write = OCFS2_CONTROL_PROTO_LEN - *ppos; - if (to_write > count) - to_write = count; - if (copy_to_user(buf, proto_string + *ppos, to_write)) - return -EFAULT; + ssize_t ret; - *ppos += to_write; + ret = simple_read_from_buffer(buf, count, ppos, + OCFS2_CONTROL_PROTO, OCFS2_CONTROL_PROTO_LEN); /* Have we read the whole protocol list? */ - if (*ppos >= OCFS2_CONTROL_PROTO_LEN) + if (ret > 0 && *ppos >= OCFS2_CONTROL_PROTO_LEN) ocfs2_control_set_handshake_state(file, OCFS2_CONTROL_HANDSHAKE_READ); - return to_write; + return ret; } static int ocfs2_control_release(struct inode *inode, struct file *file) |