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0b61f8a407
Remove the verbose license text from XFS files and replace them
with SPDX tags. This does not change the license of any of the code,
merely refers to the common, up-to-date license files in LICENSES/
This change was mostly scripted. fs/xfs/Makefile and
fs/xfs/libxfs/xfs_fs.h were modified by hand, the rest were detected
and modified by the following command:
for f in `git grep -l "GNU General" fs/xfs/` ; do
echo $f
cat $f | awk -f hdr.awk > $f.new
mv -f $f.new $f
done
And the hdr.awk script that did the modification (including
detecting the difference between GPL-2.0 and GPL-2.0+ licenses)
is as follows:
$ cat hdr.awk
BEGIN {
hdr = 1.0
tag = "GPL-2.0"
str = ""
}
/^ \* This program is free software/ {
hdr = 2.0;
next
}
/any later version./ {
tag = "GPL-2.0+"
next
}
/^ \*\// {
if (hdr > 0.0) {
print "// SPDX-License-Identifier: " tag
print str
print $0
str=""
hdr = 0.0
next
}
print $0
next
}
/^ \* / {
if (hdr > 1.0)
next
if (hdr > 0.0) {
if (str != "")
str = str "\n"
str = str $0
next
}
print $0
next
}
/^ \*/ {
if (hdr > 0.0)
next
print $0
next
}
// {
if (hdr > 0.0) {
if (str != "")
str = str "\n"
str = str $0
next
}
print $0
}
END { }
$
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
89 lines
2.7 KiB
C
89 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016 Oracle. All Rights Reserved.
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* Author: Darrick J. Wong <darrick.wong@oracle.com>
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*/
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#ifndef __XFS_REFCOUNT_ITEM_H__
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#define __XFS_REFCOUNT_ITEM_H__
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/*
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* There are (currently) two pairs of refcount btree redo item types:
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* increase and decrease. The log items for these are CUI (refcount
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* update intent) and CUD (refcount update done). The redo item type
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* is encoded in the flags field of each xfs_map_extent.
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*
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* *I items should be recorded in the *first* of a series of rolled
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* transactions, and the *D items should be recorded in the same
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* transaction that records the associated refcountbt updates.
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*
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* Should the system crash after the commit of the first transaction
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* but before the commit of the final transaction in a series, log
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* recovery will use the redo information recorded by the intent items
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* to replay the refcountbt metadata updates.
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*/
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/* kernel only CUI/CUD definitions */
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struct xfs_mount;
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struct kmem_zone;
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/*
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* Max number of extents in fast allocation path.
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*/
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#define XFS_CUI_MAX_FAST_EXTENTS 16
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/*
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* Define CUI flag bits. Manipulated by set/clear/test_bit operators.
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*/
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#define XFS_CUI_RECOVERED 1
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/*
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* This is the "refcount update intent" log item. It is used to log
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* the fact that some reverse mappings need to change. It is used in
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* conjunction with the "refcount update done" log item described
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* below.
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*
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* These log items follow the same rules as struct xfs_efi_log_item;
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* see the comments about that structure (in xfs_extfree_item.h) for
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* more details.
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*/
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struct xfs_cui_log_item {
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struct xfs_log_item cui_item;
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atomic_t cui_refcount;
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atomic_t cui_next_extent;
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unsigned long cui_flags; /* misc flags */
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struct xfs_cui_log_format cui_format;
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};
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static inline size_t
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xfs_cui_log_item_sizeof(
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unsigned int nr)
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{
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return offsetof(struct xfs_cui_log_item, cui_format) +
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xfs_cui_log_format_sizeof(nr);
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}
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/*
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* This is the "refcount update done" log item. It is used to log the
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* fact that some refcountbt updates mentioned in an earlier cui item
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* have been performed.
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*/
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struct xfs_cud_log_item {
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struct xfs_log_item cud_item;
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struct xfs_cui_log_item *cud_cuip;
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struct xfs_cud_log_format cud_format;
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};
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extern struct kmem_zone *xfs_cui_zone;
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extern struct kmem_zone *xfs_cud_zone;
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struct xfs_cui_log_item *xfs_cui_init(struct xfs_mount *, uint);
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struct xfs_cud_log_item *xfs_cud_init(struct xfs_mount *,
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struct xfs_cui_log_item *);
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void xfs_cui_item_free(struct xfs_cui_log_item *);
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void xfs_cui_release(struct xfs_cui_log_item *);
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int xfs_cui_recover(struct xfs_mount *mp, struct xfs_cui_log_item *cuip,
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struct xfs_defer_ops *dfops);
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#endif /* __XFS_REFCOUNT_ITEM_H__ */
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