[PATCH] btrfs-progs: Improve default explanation in man page

@@ -42,7 +42,7 @@ have been applied.
 
 *acl*::
 *noacl*::
-(default: on)
+(default: acl)
 +
 Enable/disable support for Posix Access Control Lists (ACLs).  See the
 `acl`(5) manual page for more information about ACLs.

@@ -52,7 +52,7 @@ mount fails if 'acl' is requested but the feature is not compiled in.
 
 *autodefrag*::
 *noautodefrag*::
-(since: 3.0, default: off)
+(since: 3.0, default: noautodefrag)
 +
 Enable automatic file defragmentation.
 When enabled, small random writes into files (in a range of tens of kilobytes,

@@ -72,7 +72,7 @@ broken up reflinks.
 
 *barrier*::
 *nobarrier*::
-(default: on)
+(default: barrier)
 +
 Ensure that all IO write operations make it through the device cache and are stored
 permanently when the filesystem is at its consistency checkpoint. This

@@ -131,7 +131,7 @@ seconds (5 minutes). Use with care.
 *compress='type[:level]'*::
 *compress-force*::
 *compress-force='type[:level]'*::
-(default: off, level support since: 5.1)
+(default: compress=no, level support since: 5.1)
 +
 Control BTRFS file data compression.  Type may be specified as 'zlib',
 'lzo', 'zstd' or 'no' (for no compression, used for remounting).  If no type

@@ -159,7 +159,7 @@ NOTE: If compression is enabled, 'nodatacow' and 'nodatasum' are disabled.
 
 *datacow*::
 *nodatacow*::
-(default: on)
+(default: datacow)
 +
 Enable data copy-on-write for newly created files.
 'Nodatacow' implies 'nodatasum', and disables 'compression'. All files created

@@ -173,7 +173,7 @@ at the cost of potential partial writes, in case the write is interrupted
 
 *datasum*::
 *nodatasum*::
-(default: on)
+(default: datasum)
 +
 Enable data checksumming for newly created files.
 'Datasum' implies 'datacow', ie. the normal mode of operation. All files created

@@ -221,7 +221,7 @@ system at that point.
 *discard=sync*::
 *discard=async*::
 *nodiscard*::
-(default: off, async support since: 5.6)
+(default: nodiscard, async support since: 5.6)
 +
 Enable discarding of freed file blocks.  This is useful for SSD devices, thinly
 provisioned LUNs, or virtual machine images; however, every storage layer must

@@ -246,7 +246,7 @@ of actually discarding the blocks.
 
 *enospc_debug*::
 *noenospc_debug*::
-(default: off)
+(default: noenospc_debug)
 +
 Enable verbose output for some ENOSPC conditions. It's safe to use but can
 be noisy if the system reaches near-full state.

@@ -267,7 +267,7 @@ parameters, eg. 'panic', 'oops' or 'crashkernel'.
 
 *flushoncommit*::
 *noflushoncommit*::
-(default: off)
+(default: noflushoncommit)
 +
 This option forces any data dirtied by a write in a prior transaction to commit
 as part of the current commit, effectively a full filesystem sync.

@@ -290,7 +290,7 @@ option 'BTRFS_DEBUG' is not enabled.
 
 *inode_cache*::
 *noinode_cache*::
-(since: 3.0, default: off)
+(since: 3.0, default: noinode_cache)
 +
 Enable free inode number caching. Not recommended to use unless files on your
 filesystem get assigned inode numbers that are approaching 2^64^. Normally, new

@@ -313,7 +313,7 @@ Alternatively, files with high inode numbers can be copied to a new subvolume
 which will effectively start the inode numbers from the beginning again.
 
 *nologreplay*::
-(default: off, even read-only)
+(default: logreplay, even read-only)
 +
 The tree-log contains pending updates to the filesystem until the full commit.
 The log is replayed on next mount, this can be disabled by this option.  See