LU-13798 llite: parallelize direct i/o issuance

[fs/lustre-release.git] / lustre / llite / llite_internal.h

diff --git a/lustre/llite/llite_internal.h b/lustre/llite/llite_internal.h
index dc297e4..6a86b6d 100644 (file)
--- a/lustre/llite/llite_internal.h
+++ b/lustre/llite/llite_internal.h
@@ -639,6 +639,8 @@ enum stats_track_type {
 #define LL_SBI_FOREIGN_SYMLINK     0x20000000 /* foreign fake-symlink support */
 /* foreign fake-symlink upcall registered */
 #define LL_SBI_FOREIGN_SYMLINK_UPCALL      0x40000000
+#define LL_SBI_PARALLEL_DIO    0x80000000 /* parallel (async) submission of
+                                             RPCs for DIO */
 #define LL_SBI_FLAGS {         \
        "nolck",        \
        "checksum",     \
@@ -671,6 +673,7 @@ enum stats_track_type {
        "noencrypt",    \
        "foreign_symlink",      \
        "foreign_symlink_upcall",       \
+       "parallel_dio", \
 }
 
 /* This is embedded into llite super-blocks to keep track of connect
@@ -989,6 +992,11 @@ static inline bool ll_sbi_has_foreign_symlink(struct ll_sb_info *sbi)
        return !!(sbi->ll_flags & LL_SBI_FOREIGN_SYMLINK);
 }
 
+static inline bool ll_sbi_has_parallel_dio(struct ll_sb_info *sbi)
+{
+       return !!(sbi->ll_flags & LL_SBI_PARALLEL_DIO);
+}
+
 void ll_ras_enter(struct file *f, loff_t pos, size_t count);
 
 /* llite/lcommon_misc.c */