linux-toradex.git/fs/btrfs/root-tree.c, branch v6.7

btrfs: qgroup: add new quota mode for simple quotas

2023-10-12T14:44:10+00:00

Add a new quota mode called "simple quotas". It can be enabled by the
existing quota enable ioctl via a new command, and sets an incompat
bit, as the implementation of simple quotas will make backwards
incompatible changes to the disk format of the extent tree.

Signed-off-by: Boris Burkov 
Signed-off-by: David Sterba

btrfs: abort transaction on generation mismatch when marking eb as dirty

2023-10-12T14:44:07+00:00

When marking an extent buffer as dirty, at btrfs_mark_buffer_dirty(),
we check if its generation matches the running transaction and if not we
just print a warning. Such mismatch is an indicator that something really
went wrong and only printing a warning message (and stack trace) is not
enough to prevent a corruption. Allowing a transaction to commit with such
an extent buffer will trigger an error if we ever try to read it from disk
due to a generation mismatch with its parent generation.

So abort the current transaction with -EUCLEAN if we notice a generation
mismatch. For this we need to pass a transaction handle to
btrfs_mark_buffer_dirty() which is always available except in test code,
in which case we can pass NULL since it operates on dummy extent buffers
and all test roots have a single node/leaf (root node at level 0).

Signed-off-by: Filipe Manana 
Reviewed-by: David Sterba 
Signed-off-by: David Sterba

btrfs: reformat remaining kdoc style comments

2023-10-12T14:44:04+00:00

Function name in the comment does not bring much value to code not
exposed as API and we don't stick to the kdoc format anymore. Update
formatting of parameter descriptions.

Reviewed-by: Qu Wenruo 
Signed-off-by: David Sterba

btrfs: move orphan prototypes into orphan.h

2022-12-05T17:00:47+00:00

Move these out of ctree.h into orphan.h to cut down on code in ctree.h.

Signed-off-by: Josef Bacik 
Reviewed-by: David Sterba 
Signed-off-by: David Sterba

btrfs: move root tree prototypes to their own header

2022-12-05T17:00:44+00:00

Move all the root-tree.c prototypes to root-tree.h, and then update all
the necessary files to include the new header.

Signed-off-by: Josef Bacik 
Reviewed-by: David Sterba 
Signed-off-by: David Sterba

btrfs: use struct fscrypt_str instead of struct qstr

2022-12-05T17:00:43+00:00

While struct qstr is more natural without fscrypt, since it's provided
by dentries, struct fscrypt_str is provided by the fscrypt handlers
processing dentries, and is thus more natural in the fscrypt world.
Replace all of the struct qstr uses with struct fscrypt_str.

Signed-off-by: Sweet Tea Dorminy 
Reviewed-by: David Sterba 
Signed-off-by: David Sterba

btrfs: use struct qstr instead of name and namelen pairs

2022-12-05T17:00:43+00:00

Many functions throughout btrfs take name buffer and name length
arguments. Most of these functions at the highest level are usually
called with these arguments extracted from a supplied dentry's name.
But the entire name can be passed instead, making each function a little
more elegant.

Each function whose arguments are currently the name and length
extracted from a dentry is herein converted to instead take a pointer to
the name in the dentry. The couple of calls to these calls without a
struct dentry are converted to create an appropriate qstr to pass in.
Additionally, every function which is only called with a name/len
extracted directly from a qstr is also converted.

This change has positive effect on stack consumption, frame of many
functions is reduced but this will be used in the future for fscrypt
related structures.

Signed-off-by: Sweet Tea Dorminy 
Reviewed-by: David Sterba 
Signed-off-by: David Sterba

btrfs: move accessor helpers into accessors.h

2022-12-05T17:00:42+00:00

This is a large patch, but because they're all macros it's impossible to
split up.  Simply copy all of the item accessors in ctree.h and paste
them in accessors.h, and then update any files to include the header so
everything compiles.

Reviewed-by: Anand Jain 
Signed-off-by: Josef Bacik 
Reviewed-by: David Sterba 
[ reformat comments, style fixups ]
Signed-off-by: David Sterba

btrfs: move BTRFS_FS_STATE* definitions and helpers to fs.h

2022-12-05T17:00:42+00:00

We're going to use fs.h to hold fs wide related helpers and definitions,
move the FS_STATE enum and related helpers to fs.h, and then update all
files that need these definitions to include fs.h.

Reviewed-by: Johannes Thumshirn 
Reviewed-by: Anand Jain 
Signed-off-by: Josef Bacik 
Reviewed-by: David Sterba 
Signed-off-by: David Sterba

btrfs: move the printk helpers out of ctree.h

2022-12-05T17:00:41+00:00

We have a bunch of printk helpers that are in ctree.h.  These have
nothing to do with ctree.c, so move them into their own header.
Subsequent patches will cleanup the printk helpers.

Reviewed-by: Johannes Thumshirn 
Signed-off-by: Josef Bacik 
Reviewed-by: David Sterba 
Signed-off-by: David Sterba