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NTFS: - Split ntfs_map_runlist() into ntfs_map_runlist() and a non-locking

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helper ntfs_map_runlist_nolock() which is used by ntfs_map_runlist().
	This allows us to map runlist fragments with the runlist lock already
	held without having to drop and reacquire it around the call.  Adapt
	all callers.
      - Change ntfs_find_vcn() to ntfs_find_vcn_nolock() which takes a locked
	runlist.  This allows us to find runlist elements with the runlist
	lock already held without having to drop and reacquire it around the
	call.  Adapt all callers.

Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
This commit is contained in:
Anton Altaparmakov 2005-02-15 10:08:43 +00:00
parent 1a0df15acd
commit b6ad6c52fe
6 changed files with 119 additions and 113 deletions
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5
fs/ntfs/attrib.h
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@ -60,10 +60,11 @@ typedef struct {
ATTR_RECORD *base_attr;
} ntfs_attr_search_ctx;
extern int ntfs_map_runlist_nolock(ntfs_inode *ni, VCN vcn);
extern int ntfs_map_runlist(ntfs_inode *ni, VCN vcn);
extern runlist_element *ntfs_find_vcn(ntfs_inode *ni, const VCN vcn,
const BOOL need_write);
extern runlist_element *ntfs_find_vcn_nolock(ntfs_inode *ni, const VCN vcn,
const BOOL write_locked);
int ntfs_attr_lookup(const ATTR_TYPE type, const ntfschar *name,
const u32 name_len, const IGNORE_CASE_BOOL ic,