If we do not use metadata flush, we must make sure the size is updated
in the filesystem after a write, otherwise the next GETATTR will get us
a stale value and the file will be truncated.
FUSE filesystems do not expect to get metadata updates for [amc]time
and size, they updates the value on their own after operations.
The PUFFS PUFFS_KFLAG_NOFLUSH_META option prevents regular metadata cache
flushes to the filesystem , and libperfuse uses it to match Linux FUSE
behavior.
While there, fix a bug in SETATTR: do not update kernel metadata cache
from SETATTR reply when the request is asynchronous, as we do not have
the reply yet.
In nilfs_mount_device() there's one branch where the node is not released:
when the device is already mounted. Not releasing it was thus intentional,
but this is something code scanners can't understand.
vrele() called next will do that again - avoids a double free of the
bitmap, leading to a KASSERT failure (or worse in real life) in the
udf_symlink_long in the fs/vfs::t_vnops test.
Sending a read through the page cache will get the operation
short-circuited. This is a problem with some filesystems that
expect to receive the read operation in order to update atime.
We fix that by bypassing the page cache when reading a file
wich a size known to be zero.
altq Drop Type
disklabel Disk Type
file Descriptor Type
(not to mention constants that contain the string DTYPE).
Let's make them two, by changing the disklabel one to be DisK TYPE since the
other disklabel constants seem to do that. Not many userland programs use
these constants (and the ones that they do are mostly in ifdefs). They will
be fixed shortly.
bfs_file_rename() and remove the bfs_file_delete() from bfs_file_rename().
After calling bfs_file_rename() it was too late to set "tnode->removed"
as the inode already disappeared.
- Use (parent_vnode, name, name_len) as key.
- Change smbfs_nget() to return a referenced but unlocked vnode and
adapt smbfs_setroot(), smbfs_create(), smbfs_mkdir() and smbfs_lookup().
(derived from clock_subr.h). Keep clock_subr.h with the kernel structures
and functions to reduce diffs, and have clock.h only include standalone
constants and macros.
