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author | Matthew Wilcox <willy@infradead.org> | 2018-11-05 15:48:49 -0500 |
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committer | Matthew Wilcox <willy@infradead.org> | 2018-11-05 16:38:09 -0500 |
commit | 9c16bb88905456a9b1299338041f05fa7699971b (patch) | |
tree | 9396efce15dc79286b590c5740397f7f2bcc13c1 /include/linux/xarray.h | |
parent | c5beb07e7a06b24f4f27304f6282b5dbd929543b (diff) | |
download | lwn-9c16bb88905456a9b1299338041f05fa7699971b.tar.gz lwn-9c16bb88905456a9b1299338041f05fa7699971b.zip |
XArray: Turn xa_erase into an exported function
Make xa_erase() take the spinlock and then call __xa_erase(), but make
it out of line since it's such a common function.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Diffstat (limited to 'include/linux/xarray.h')
-rw-r--r-- | include/linux/xarray.h | 18 |
1 files changed, 1 insertions, 17 deletions
diff --git a/include/linux/xarray.h b/include/linux/xarray.h index 8e59d4fbd55e..4c839c17a99b 100644 --- a/include/linux/xarray.h +++ b/include/linux/xarray.h @@ -289,6 +289,7 @@ struct xarray { void xa_init_flags(struct xarray *, gfp_t flags); void *xa_load(struct xarray *, unsigned long index); void *xa_store(struct xarray *, unsigned long index, void *entry, gfp_t); +void *xa_erase(struct xarray *, unsigned long index); void *xa_store_range(struct xarray *, unsigned long first, unsigned long last, void *entry, gfp_t); bool xa_get_mark(struct xarray *, unsigned long index, xa_mark_t); @@ -341,23 +342,6 @@ static inline bool xa_marked(const struct xarray *xa, xa_mark_t mark) } /** - * xa_erase() - Erase this entry from the XArray. - * @xa: XArray. - * @index: Index of entry. - * - * This function is the equivalent of calling xa_store() with %NULL as - * the third argument. The XArray does not need to allocate memory, so - * the user does not need to provide GFP flags. - * - * Context: Process context. Takes and releases the xa_lock. - * Return: The entry which used to be at this index. - */ -static inline void *xa_erase(struct xarray *xa, unsigned long index) -{ - return xa_store(xa, index, NULL, 0); -} - -/** * xa_for_each() - Iterate over a portion of an XArray. * @xa: XArray. * @entry: Entry retrieved from array. |