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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>
86 lines
2.6 KiB
C
86 lines
2.6 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_BMAP_ITEM_H__
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#define __XFS_BMAP_ITEM_H__
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/*
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* There are (currently) two pairs of bmap btree redo item types: map & unmap.
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* The common abbreviations for these are BUI (bmap update intent) and BUD
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* (bmap update done). The redo item type is encoded in the flags field of
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* 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 transaction
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* that records the associated bmbt updates.
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*
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* Should the system crash after the commit of the first transaction but
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* before the commit of the final transaction in a series, log recovery will
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* use the redo information recorded by the intent items to replay the
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* bmbt metadata updates in the non-first transaction.
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*/
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/* kernel only BUI/BUD 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_BUI_MAX_FAST_EXTENTS 1
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/*
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* Define BUI flag bits. Manipulated by set/clear/test_bit operators.
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*/
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#define XFS_BUI_RECOVERED 1
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/*
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* This is the "bmap update intent" log item. It is used to log the fact that
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* some reverse mappings need to change. It is used in conjunction with the
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* "bmap update done" log item described below.
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*
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* These log items follow the same rules as struct xfs_efi_log_item; see the
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* comments about that structure (in xfs_extfree_item.h) for more details.
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*/
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struct xfs_bui_log_item {
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struct xfs_log_item bui_item;
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atomic_t bui_refcount;
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atomic_t bui_next_extent;
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unsigned long bui_flags; /* misc flags */
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struct xfs_bui_log_format bui_format;
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};
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static inline size_t
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xfs_bui_log_item_sizeof(
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unsigned int nr)
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{
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return offsetof(struct xfs_bui_log_item, bui_format) +
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xfs_bui_log_format_sizeof(nr);
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}
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/*
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* This is the "bmap update done" log item. It is used to log the fact that
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* some bmbt updates mentioned in an earlier bui item have been performed.
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*/
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struct xfs_bud_log_item {
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struct xfs_log_item bud_item;
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struct xfs_bui_log_item *bud_buip;
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struct xfs_bud_log_format bud_format;
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};
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extern struct kmem_zone *xfs_bui_zone;
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extern struct kmem_zone *xfs_bud_zone;
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struct xfs_bui_log_item *xfs_bui_init(struct xfs_mount *);
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struct xfs_bud_log_item *xfs_bud_init(struct xfs_mount *,
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struct xfs_bui_log_item *);
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void xfs_bui_item_free(struct xfs_bui_log_item *);
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void xfs_bui_release(struct xfs_bui_log_item *);
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int xfs_bui_recover(struct xfs_mount *mp, struct xfs_bui_log_item *buip,
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struct xfs_defer_ops *dfops);
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#endif /* __XFS_BMAP_ITEM_H__ */
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