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Howlett" , Yun Zhou , Suren Baghdasaryan , Alex Sierra , Muhammad Usama Anjum , Matthew Wilcox , Pasha Tatashin , Axel Rasmussen , "Gustavo A . R . Silva" , Dan Williams , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, Greg KH , kernel@collabora.com, Cyrill Gorcunov , Mike Rapoport , Nadav Amit , David Hildenbrand Subject: [PATCH v31 4/6] tools headers UAPI: Update linux/fs.h with the kernel sources Date: Wed, 16 Aug 2023 15:38:12 +0500 Message-Id: <20230816103814.1522393-5-usama.anjum@collabora.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230816103814.1522393-1-usama.anjum@collabora.com> References: <20230816103814.1522393-1-usama.anjum@collabora.com> MIME-Version: 1.0 X-Stat-Signature: jxn14fsfxueby7fp7onmn59jgo5gxohc X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: CF06940010 X-Rspam-User: X-HE-Tag: 1692182333-487290 X-HE-Meta: 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 j6oavWQf hkllhc+5HA4rIylqV2BIxI04XAx5QpR2gFaha/krKjw0ulBpJlwpKlYQ7yYmWyAvzK/sgk+N4Uby4NHKOBBP3lY8E/opueDC7+z4rk9QRF5ihkHpPm82lDBIoJeOS/q9TqTFmikrvrRZ9MM062P54d8Ds+LNJmqkUVhBIdfsV1OfGXH0oWPIb54j5+pQv37mk7uT3ulDH6cIrHeNzHQHKtn/OGkDzuYmxL8Q0LRuSu+ajBFme2ueLppxsP/KurWwVEzfW X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: New IOCTL and macros has been added in the kernel sources. Update the tools header file as well. Signed-off-by: Muhammad Usama Anjum --- Changes in v30: - Comment update Changes in v29: - Comment updates Changes in v27: - Comment updates in fs.h Changes in v26: - Update according to tools/include/uapi/linux/fs.h Changes in v21: - Update tools/include/uapi/linux/fs.h Changes in v19: - Update fs.h according to precious patch --- tools/include/uapi/linux/fs.h | 59 +++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) diff --git a/tools/include/uapi/linux/fs.h b/tools/include/uapi/linux/fs.h index b7b56871029c5..da43810b74856 100644 --- a/tools/include/uapi/linux/fs.h +++ b/tools/include/uapi/linux/fs.h @@ -305,4 +305,63 @@ typedef int __bitwise __kernel_rwf_t; #define RWF_SUPPORTED (RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT |\ RWF_APPEND) +/* Pagemap ioctl */ +#define PAGEMAP_SCAN _IOWR('f', 16, struct pm_scan_arg) + +/* Bitmasks provided in pm_scan_args masks and reported in page_region.categories. */ +#define PAGE_IS_WPALLOWED (1 << 0) +#define PAGE_IS_WRITTEN (1 << 1) +#define PAGE_IS_FILE (1 << 2) +#define PAGE_IS_PRESENT (1 << 3) +#define PAGE_IS_SWAPPED (1 << 4) +#define PAGE_IS_PFNZERO (1 << 5) +#define PAGE_IS_HUGE (1 << 6) + +/* + * struct page_region - Page region with flags + * @start: Start of the region + * @end: End of the region (exclusive) + * @categories: PAGE_IS_* category bitmask for the region + */ +struct page_region { + __u64 start; + __u64 end; + __u64 categories; +}; + +/* Flags for PAGEMAP_SCAN ioctl */ +#define PM_SCAN_WP_MATCHING (1 << 0) /* Write protect the pages matched. */ +#define PM_SCAN_CHECK_WPASYNC (1 << 1) /* Abort the scan when a non-WP-enabled page is found. */ + +/* + * struct pm_scan_arg - Pagemap ioctl argument + * @size: Size of the structure + * @flags: Flags for the IOCTL + * @start: Starting address of the region + * @end: Ending address of the region + * @walk_end Address where the scan stopped (written by kernel). + * walk_end == end (address tags cleared) informs that the scan completed on entire range. + * @vec: Address of page_region struct array for output + * @vec_len: Length of the page_region struct array + * @max_pages: Optional limit for number of returned pages (0 = disabled) + * @category_inverted: PAGE_IS_* categories which values match if 0 instead of 1 + * @category_mask: Skip pages for which any category doesn't match + * @category_anyof_mask: Skip pages for which no category matches + * @return_mask: PAGE_IS_* categories that are to be reported in `page_region`s returned + */ +struct pm_scan_arg { + __u64 size; + __u64 flags; + __u64 start; + __u64 end; + __u64 walk_end; + __u64 vec; + __u64 vec_len; + __u64 max_pages; + __u64 category_inverted; + __u64 category_mask; + __u64 category_anyof_mask; + __u64 return_mask; +}; + #endif /* _UAPI_LINUX_FS_H */