On 2014/12/06, 12:16 AM, "Tristan Lelong" <tris...@lelong.xyz> wrote:
>This patch replace the value '80' used in several files in the lustre >source code >with a define LUSTRE_MDT_MAXNAMELEN. > >This value is used in 4 different structures as the maximum len for a >service name. >According to the comments, these names follow a convention which make it >possible >to use the same define for LCS, LSS, LCF, and LSF names. > >Signed-off-by: Tristan Lelong <tris...@lelong.xyz> >--- >Note: > This modification answers Joe Perches suggestion: >https://lkml.org/lkml/2014/12/5/107 > The patch has to be applied on top of https://lkml.org/lkml/2014/12/6/17 >--- > drivers/staging/lustre/lustre/fld/fld_internal.h | 2 +- > drivers/staging/lustre/lustre/fld/lproc_fld.c | 2 +- > drivers/staging/lustre/lustre/include/lustre/lustre_idl.h | 5 +++++ > drivers/staging/lustre/lustre/include/lustre_fid.h | 4 ++-- > drivers/staging/lustre/lustre/include/lustre_fld.h | 4 ++-- > 5 files changed, 11 insertions(+), 6 deletions(-) > >diff --git a/drivers/staging/lustre/lustre/fld/fld_internal.h >b/drivers/staging/lustre/lustre/fld/fld_internal.h >index 8806b60..6125bbe 100644 >--- a/drivers/staging/lustre/lustre/fld/fld_internal.h >+++ b/drivers/staging/lustre/lustre/fld/fld_internal.h >@@ -111,7 +111,7 @@ struct fld_cache { > > /** > * Cache name used for debug and messages. */ >- char fci_name[80]; >+ char fci_name[LUSTRE_MDT_MAXNAMELEN]; > unsigned int fci_no_shrink:1; > }; > >diff --git a/drivers/staging/lustre/lustre/fld/lproc_fld.c >b/drivers/staging/lustre/lustre/fld/lproc_fld.c >index 74b4db9..7a55941 100644 >--- a/drivers/staging/lustre/lustre/fld/lproc_fld.c >+++ b/drivers/staging/lustre/lustre/fld/lproc_fld.c >@@ -96,7 +96,7 @@ fld_proc_hash_seq_write(struct file *file, > char *name; > int i; > >- if (count > 80) >+ if (count > LUSTRE_MDT_MAXNAMELEN) > return -ENAMETOOLONG; Sorry for the late reply, but this has nothing to do with an MDT service name, so using this #define is misleading here. As I wrote in my other email, this only needs to be at most 8 characters. Cheers, Andreas > > name = kmalloc(count, GFP_KERNEL); >diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h >b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h >index 7b7457c..305ecbe 100644 >--- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h >+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h >@@ -105,6 +105,11 @@ > * FOO_BULK_PORTAL is for incoming bulk on the FOO > */ > >+/* Lustre service names are following the format >+ * service name + MDT + seq name >+ */ >+#define LUSTRE_MDT_MAXNAMELEN 80 >+ > #define CONNMGR_REQUEST_PORTAL 1 > #define CONNMGR_REPLY_PORTAL 2 > //#define OSC_REQUEST_PORTAL 3 >diff --git a/drivers/staging/lustre/lustre/include/lustre_fid.h >b/drivers/staging/lustre/lustre/include/lustre_fid.h >index 2d6fbb4..0a0929f 100644 >--- a/drivers/staging/lustre/lustre/include/lustre_fid.h >+++ b/drivers/staging/lustre/lustre/include/lustre_fid.h >@@ -358,7 +358,7 @@ struct lu_client_seq { > * Service uuid, passed from MDT + seq name to form unique seq name to > * use it with procfs. > */ >- char lcs_name[80]; >+ char lcs_name[LUSTRE_MDT_MAXNAMELEN]; > > /* > * Sequence width, that is how many objects may be allocated in one >@@ -408,7 +408,7 @@ struct lu_server_seq { > * Service uuid, passed from MDT + seq name to form unique seq name to > * use it with procfs. > */ >- char lss_name[80]; >+ char lss_name[LUSTRE_MDT_MAXNAMELEN]; > > /* > * Allocation chunks for super and meta sequences. Default values are >diff --git a/drivers/staging/lustre/lustre/include/lustre_fld.h >b/drivers/staging/lustre/lustre/include/lustre_fld.h >index 64c5048..5ee4b1e 100644 >--- a/drivers/staging/lustre/lustre/include/lustre_fld.h >+++ b/drivers/staging/lustre/lustre/include/lustre_fld.h >@@ -93,7 +93,7 @@ struct lu_server_fld { > > /** > * Fld service name in form "fld-srv-lustre-MDTXXX" */ >- char lsf_name[80]; >+ char lsf_name[LUSTRE_MDT_MAXNAMELEN]; > > }; > >@@ -124,7 +124,7 @@ struct lu_client_fld { > > /** > * Client fld proc entry name. */ >- char lcf_name[80]; >+ char lcf_name[LUSTRE_MDT_MAXNAMELEN]; > > int lcf_flags; > }; >-- >2.1.1 > > Cheers, Andreas -- Andreas Dilger Lustre Software Architect Intel High Performance Data Division _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
