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    Subject[PATCH v4 1/3] fs: Reserve flag for casefolding
    From
    In preparation for including the casefold feature within f2fs, elevate
    the EXT4_CASEFOLD_FL flag to FS_CASEFOLD_FL.

    Signed-off-by: Daniel Rosenberg <drosen@google.com>
    ---
    include/uapi/linux/fs.h | 1 +
    tools/include/uapi/linux/fs.h | 1 +
    2 files changed, 2 insertions(+)

    diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
    index 59c71fa8c553a..2a616aa3f6862 100644
    --- a/include/uapi/linux/fs.h
    +++ b/include/uapi/linux/fs.h
    @@ -311,6 +311,7 @@ struct fscrypt_key {
    #define FS_NOCOW_FL 0x00800000 /* Do not cow file */
    #define FS_INLINE_DATA_FL 0x10000000 /* Reserved for ext4 */
    #define FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
    +#define FS_CASEFOLD_FL 0x40000000 /* Folder is case insensitive */
    #define FS_RESERVED_FL 0x80000000 /* reserved for ext2 lib */

    #define FS_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */
    diff --git a/tools/include/uapi/linux/fs.h b/tools/include/uapi/linux/fs.h
    index 59c71fa8c553a..2a616aa3f6862 100644
    --- a/tools/include/uapi/linux/fs.h
    +++ b/tools/include/uapi/linux/fs.h
    @@ -311,6 +311,7 @@ struct fscrypt_key {
    #define FS_NOCOW_FL 0x00800000 /* Do not cow file */
    #define FS_INLINE_DATA_FL 0x10000000 /* Reserved for ext4 */
    #define FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
    +#define FS_CASEFOLD_FL 0x40000000 /* Folder is case insensitive */
    #define FS_RESERVED_FL 0x80000000 /* reserved for ext2 lib */

    #define FS_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */
    --
    2.22.0.657.g960e92d24f-goog
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