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Took awhile to figure out exactly what statfs wanted...
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
A bkey_on_stack_realloc() call was in the wrong place, and broken for
indirect extents
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
- fiemap didn't know about inline extents, fixed
- advancing to the next extent after we'd chased a pointer to the
reflink btree was wrong, fixed
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
If the bkey_on_stack_reassemble() call in __bch2_read_indirect_extent()
reallocates the buffer, k in bch2_read - which we pointed at the
bkey_on_stack buffer - will now point to a stale buffer. Whoops.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Some options can't be parsed until the filesystem initialized;
previously, passing these options to mount or remount would cause mount
to fail.
This changes the mount path so that we parse the options passed in
twice, and just ignore any options that can't be parsed the first time.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
We also need to update the journal's bloom filter of inode numbers that
each journal write has upudates for - in case the inode gets evicted
before it gets fsynced.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
There was a long standing race in the mount/unmount code - the VFS
intends for mount/unmount synchronizatino to be handled by the list of
superblocks, but we were still holding devices open after tearing down
our superblock in the unmount path.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Also - make sure to show the devices we actually have open in /proc
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
We don't have a limit on the number of inodes in a filesystem, so this
is apparently the right way to report that.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
When a bkey_on_stack is passed to bch_read_indirect_extent, there is no
guarantee that it will be big enough to hold the bkey. And
bch_read_indirect_extent is not aware of bkey_on_stack to call realloc
on it. This cause a stack corruption.
This commit makes bch_read_indirect_extent aware of bkey_on_stack so it
can call realloc when appropriate.
Tested-by: Yuxuan Shui <yshuiv7@gmail.com>
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Timestamp updates on the directory during a link operation were cached.
This is inconsistent with other metadata operations such as rename, as
well as being less efficient.
Signed-off-by: Justin Husted <sigstop@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This implements code for storing small bkeys on the stack and allocating
out of a mempool if they're too big.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Discovered by xfstests generic/553
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Moving bch2_extent_update() to io.c will be greatly simplified if we
no longer have to keep ei_inode.bi_size/bi_sectors up to date.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This refactoring makes the code easier to understand by separating the
bcachefs btree transactional code from the linux VFS code - but more
importantly, it's also to share code with the fuse port.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This is the start of some refactoring work to make less code depend on
the linux VFS - here the inode cache - to make e.g. the fuse port
easier.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
when iterating over reflink pointers, we use the key we just emitted to
set the iterator position - which means we have to be setting the key's
inode field as well
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
It's only updating timestamps, so this doubly doesn't make sense. fsync
will flush the journal, if necessary.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
With reflink, various code now has to handle both KEY_TYPE_extent
or KEY_TYPE_reflink_v - so, convert it to be generic across all keys
with pointers.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This will mean we don't have to use cmpxchg for modifying page state,
which will simplify a fair amount of code
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Add helptext to option definitions - so we can unify the option
handling with the format command
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
this lets us get rid of a lot of extra switch statements - in a lot of
places we dispatch on the btree node type, and then the key type, so
this is a nice cleanup across a lot of code.
Also improve the on disk format versioning stuff.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
