a87e0831ab
The current "writeback" cache mode, selected by the vfs.fusefs.data_cache_mode sysctl, doesn't do writeback cacheing at all. It merely goes through the motions of using buf(9), but then writes every buffer synchronously. This commit: * Enables delayed writes when the sysctl is set to writeback cacheing * Fixes a cache-coherency problem when extending a file whose last page has just been written. * Removes the "sync" mount option, which had been set unconditionally. * Adjusts some SDT probes * Adds several new tests that mimic what fsx does but with more control and without a real file system. As I discover failures with fsx, I add regression tests to this file. * Adds a test that ensures we can append to a file without reading any data from it. This change is still incomplete. Clustered writing is not yet supported, and there are frequent "panic: vm_fault_hold: fault on nofault entry" panics that I need to fix. Sponsored by: The FreeBSD Foundation |
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acl | ||
aio | ||
audit | ||
auditpipe | ||
capsicum | ||
cddl | ||
common | ||
fifo | ||
file | ||
fs | ||
geom | ||
kern | ||
kqueue | ||
mac | ||
mqueue | ||
net | ||
netinet | ||
netipsec | ||
netmap | ||
netpfil | ||
opencrypto | ||
pjdfstest | ||
posixshm | ||
sys | ||
vfs | ||
vm | ||
Makefile | ||
Makefile.depend | ||
Makefile.inc |